Gas Of Combustion Patents (Class 73/23.31)
  • Patent number: 11047283
    Abstract: The invention concerns a method for monitoring an SCR catalytic converter in an exhaust line of an internal combustion engine, into which a reducing agent solution for the reduction of nitrogen oxides is dosed, wherein the SCR catalytic converter is diagnosed as defective if a measured variable is below a corresponding threshold and wherein the diagnosis of the SCR catalytic converter occurs when enabling criteria are met, wherein the enabling criteria are selected depending on a BPU model and a WPA model such that when the SCR catalytic converter (3) conforms to the BPU model, ammonia slip occurs through this SCR catalytic converter (3), and when the SCR catalytic converter corresponds to the WPA model, no ammonia slip occurs through this SCR catalytic converter.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: June 29, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Alexander Franz, Tobias Pfister
  • Patent number: 11041823
    Abstract: A gas sensor (1) including: a sensor element (10) which includes a detection portion (11) and a heater (50); a metal shell (138); and a filled member (153) filled with a filling material between the metal shell and the sensor element, wherein a position at which change in a temperature of the sensor element is smallest when a disturbance is applied is a temperature reference position M, the filled member is positioned rearward of the temperature reference position, an overall axial length LT of the sensor element is not greater than 50 mm, an axial length LE from a rear end of the filled member to a rear end of the sensor element is not smaller than 13.5 mm, and an axial length LA from the temperature reference position to a front end of the filled member is greater than 5.0 mm and not greater than 11.5 mm.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 22, 2021
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Kentaro Kamada, Hitoshi Furuta, Masaki Nakagawa
  • Patent number: 11029296
    Abstract: A method of monitoring catalytic performance of a catalyst used in a reforming process, comprising a) collecting gaseous component data from the reforming process; b) calculating a gaseous component ratio from the gaseous component data; and c) utilizing the gaseous component ratio to estimate an amount of catalytic activity remaining in the catalyst used in the reforming process, a number of days on stream remaining for the catalyst used in the reforming process, or both.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: June 8, 2021
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Israel Garcia, Scott G. Morrison
  • Patent number: 10996196
    Abstract: A particulate sensor (10) to be attached to a gas flow pipe EP through which a gas to be measured EG containing particulates S flows. The particulate sensor (10) includes a gas introduction discharge pipe (31); a discharge element (60) including a discharge electrode member (62) maintained at a discharge potential DV and which electrifies particulates contained in the gas under measurement, and a sealed portion (60C) located on a proximal end side GK of an element distal end portion and in which the discharge electrode member is disposed and insulated from the outer surface (60CS) thereof; a surrounding member (38, 39) maintained at a first potential SGND; and an electrically conductive glass seal (37) which establishes electrical communication between the surrounding member and the pipe (31), and is in close contact with the outer surface of the sealed portion of the discharge element to provide gastight sealing.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: May 4, 2021
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Norimasa Osawa, Masayuki Motomura, Keisuke Tashima
  • Patent number: 10961888
    Abstract: A NOx sensor control device is connected to a NOx sensor mounted in an internal combustion engine. The NOx sensor has a detection cell configured to detect a NOx concentration and having a solid electrolyte body and a pair of electrodes provided on a surface of the solid electrolyte body and a heater heating the detection cell. The NOx sensor control device has a heater control unit. The heater control unit is configured to, at a time when an operation of the internal combustion engine stops, perform a recovery control of the NOx sensor which is an electric current control of the heater for removing SOx adsorbed to the NOx sensor.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: March 30, 2021
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Kenji Kato, Yuuya Nakayama, Hirotaka Onogi, Masao Tsuzuki, Takumi Nishiyama
  • Patent number: 10934923
    Abstract: A heat shield assembly is provided for shielding a wire harness that is associated with a sensor in communication with a heat source. The heat shield assembly includes a base plate having a primary aperture that is configured to allow passage of the wire harness therethrough. The primary aperture is disposed in alignment with a hole defined on a shroud of the heat source. The heat shield assembly also includes a pair of walls extending upwardly from a pair of opposite edges of the base plate. Further, the heat shield assembly also includes a pair of ledge members that extend laterally from a pair of first ends associated with the pair of walls. Furthermore, the heat shield assembly also includes a pair of thermal diverter plates that extend angularly from a pair of second ends associated with the pair of ledge members.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: March 2, 2021
    Assignee: Caterpillar Inc.
    Inventors: Jason W. Hudgens, Scott M Peters, Ryan W. Rieboldt
  • Patent number: 10927813
    Abstract: Methods of operating a variable speed wind turbine as a function of wind speed are described. The wind turbine has a rotor with a plurality of blades and a generator. The generator has a design rotor speed which varies so as to follow a theoretical generator rotor rotational speed curve describing the rotational speed of the rotor as a function of wind speed. The method comprises determining an erosion risk condition of the blades, determining erosion damage of one or more of the blades accumulated over time and changing the rotor rotational speed from the design rotor speed as a function of the determined erosion risk condition and the determined accumulated erosion damage. Wind turbines configured to carry out such methods are also described.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: February 23, 2021
    Assignee: General Electric Company
    Inventors: Thomas Picard, Marc Canal Vila
  • Patent number: 10927741
    Abstract: A method includes determining whether a urea refill event is detected, and clearing a quality accumulator value and clearing a latching abort command. The method includes determining whether urea fluid quality check abort conditions are met, and clearing the urea quality accumulator, latching the abort command, and exiting the reductant fluid quality check. In response to the abort conditions not being met, incrementing the urea quality accumulator according to an amount of urea being injected, and comparing the accumulated urea quantity to a low test threshold. The method includes, in response to the accumulated urea quantity being greater than the low test threshold, comparing the accumulated urea quantity to a high test threshold, and in response to the urea quantity being greater than the high test threshold, determining whether the a NOx exceedance is observed and clearing a urea quality error in response to the NOx exceedance not being observed.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: February 23, 2021
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Xi Wei, David Samuel Everard, Baohua Qi, Mickey R. McDaniel, Edmund P. Hodzen, Guoqiang Li
  • Patent number: 10921281
    Abstract: A gas sensor element configured to detect a first component and a second component of a measurement target gas comprises an element body portion, a first detection portion, a second detection portion with a porous region, and an element protection portion. The element protection portion covers the porous region and a region at the front side with respect to the porous region in a normal side face, and covers a part of a region at the front side with respect to the second detection portion without covering the second detection portion in a second detection side face. The element protection portion is formed so as not to cover the second detection portion but to cover the porous portion of the first detection portion.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: February 16, 2021
    Assignee: NGK Spark Plug Co., LTD.
    Inventors: Hitoshi Furuta, Tetsuo Yamada, Akinori Kojima
  • Patent number: 10890517
    Abstract: A particulate matter detection device includes a sensor unit which has a detection unit provided with a pair of electrodes and a heater unit provided with a heater electrode and which is configured to output a signal corresponding to the amount of particulate matter, and a sensor control unit which detects the number of particles of the particulate matter. The sensor control unit has a capture control unit, a heating control unit to heat the detection unit to a first temperature at which a SOF is volatilizable and a second temperature at which soot is burnable, an output changing ratio calculation unit to calculate a ratio between a first output value at the first temperature and a second output value as the maximum output upon heating to the second temperature, and a particle number calculation unit to estimate the average particle diameter of the particulate matter from a value corrected based on the temperature of the sensor unit at the second output value to calculate the number of particles.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: January 12, 2021
    Assignee: DENSO CORPORATION
    Inventors: Kazuhiko Koike, Masahiro Yamamoto
  • Patent number: 10871117
    Abstract: After an engine is started, an ECU performs first regeneration processing of a PM sensor through heating by a heater and, after the first regeneration processing, applies a voltage continuously to detection electrodes for a predetermined voltage application period. The ECU causes PM to adhere to an insulating substrate due to the voltage application and, at a time point after the predetermined time period has elapsed, determines the amount of PM that is adhering to the insulating substrate. When a predetermined condition is satisfied outside the voltage application period, the ECU determines whether the amount of adhering PM on the insulating substrate is equal to or greater than an excess determination threshold value. If the amount of adhering PM is determined to be equal to or greater than the excess determination threshold value, the ECU performs second regeneration processing of the PM sensor, through heating by the heater.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: December 22, 2020
    Assignee: DENSO CORPORATION
    Inventors: Masahiro Yamamoto, Masayuki Tamura, Takashi Araki, Go Miyagawa, Manabu Yoshidome, Masato Katsuno, Toshihiro Sakawa
  • Patent number: 10859487
    Abstract: The systems and methods provided herein relate generally to the improvement of data quality in optical liquid particle counters and control of optical particle counters to achieve longer expected lifetime, for example by avoiding damage caused by electromagnetic radiation and heat. The systems and methods incorporate sensors which characterize the fluid flowing through the flow cell, thereby enhancing accuracy and reducing the number of false positives.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: December 8, 2020
    Assignee: PARTICLE MEASURING SYSTEMS, INC.
    Inventors: Brian Knollenberg, Jim Lumpkin, Brett Haley, Matt Soappman, Dan Rodier, Mark Lilly
  • Patent number: 10840763
    Abstract: An explosion-proof device includes a frame having a hollow shape, the frame housing an electrical component and a battery capable of supplying the electrical component with electric power. A protection device is configured to stop electric supply to the electrical component from the battery, if there is a risk of an explosive atmosphere entering the frame. The battery is housed in an explosion-proof container, within the frame, and thus it is possible to suppress damage to surroundings effectively even in case of ignition of an explosive atmosphere flowing into the frame by the battery.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: November 17, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Ken Onishi, Koji Shukutani, Hiroyoshi Okazaki, Syuhei Kobori
  • Patent number: 10837940
    Abstract: An improvement in the method or technique of conditioning a gas sensor is provided through the application of Pulse Discharge Technique (PDT) in order to condition mixed-potential gas sensors. A modified planar sensor design to minimize sodium atom diffusion and platinum electrode poisoning under conditions of PDT are provided. Modification of the PDT hardware is provided without modification of the sensor design. The improvement method comprises: a) Replace a single polarity power supply with a power supply with floating positive and negative output; b) Connect one of the heater leads with the reference electrode lead and connect it to the ground.
    Type: Grant
    Filed: November 18, 2017
    Date of Patent: November 17, 2020
    Assignee: BJR SENSORS LLC
    Inventor: Boris Farber
  • Patent number: 10816523
    Abstract: This document describes a method of determining an extent of mold behind a surface. The method includes moving a gas sensor lateral to the surface. The gas sensor includes an oscillating gas-interacting surface. The method includes measuring gas concentrations at multiple points along the surface. The method also includes displaying a heat map in a display. The heat map shows gas concentrations at multiple points along the surface.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: October 27, 2020
    Assignee: Aromatix, Inc.
    Inventor: Chowdhury F. Rahim
  • Patent number: 10816413
    Abstract: It is an object of the present invention to provide a calorific value measuring device and a calorific value measuring method which enable highly reliable measurement of the calorific value of a by-product gas produced in a steelmaking process. In the present invention, with a by-product gas produced in a steelmaking process being employed as an object gas of which calorific value is to be measured, the refractive index and the sonic speed of the by-product gas are measured so as to compute a refractive index equivalent calorific value QO from the value of the refractive index as well as a sonic speed equivalent calorific value QS from the value of the sonic speed. On the basis of the concentration XCO of carbon monoxide gas contained in the by-product gas, an error calorific value QCO is computed by Equation (1) below using a value selected within a range of ?0.08 to ?0.03 as a calorific value equivalent coefficient ?.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: October 27, 2020
    Assignee: RIKEN KEIKI CO., LTD.
    Inventors: Tomoo Ishiguro, Kenichi Kojima
  • Patent number: 10775357
    Abstract: An inner protective cover 130 of a gas sensor forms an element-chamber inlet 127 having a first outside opening 128a, a second outside opening 128b, and an element-side opening 129. The second outside opening 128b is disposed such that the path of a measurement-object gas from the first outside opening 128a to the element-side opening 129 of the element-chamber inlet 127 communicates in the middle thereof with a first gas chamber 122, and that there is a path shorter than the shortest path of the measurement-object gas extending from an outer inlet 144a through the first outside opening 128a to a gas inlet 111.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: September 15, 2020
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yosuke Adachi, Tetsuya Ishikawa, Jumpei Tanaka
  • Patent number: 10760506
    Abstract: A gaseous fuel supply system for an internal combustion engine may include a storage tank for storing liquefied gaseous fuel and supplying the fuel to the engine. The system may also include a liquid level sensor for measuring a level value of the liquefied gaseous fuel in the storage tank and a pressure sensor for measuring a pressure value of gaseous fuel in the fuel supply system. The system may further include a controller. The controller may be configured to: monitor a pressure signal of the pressure sensor indicating the pressure value and a tank level signal of the liquid level sensor indicating the level value; store the level value when the pressure value indicates the storage tank is empty; store the level value when the pressure value or the level value indicates the storage tank is full; and determine a calibrated level range based on the stored level values.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: September 1, 2020
    Assignee: Caterpillar Inc.
    Inventors: Matthew J. Engfehr, Asha L. Pai, Roderick S. Zehrung, Derek P. Samsel, Brett M. Nee, Joshua Perko
  • Patent number: 10732082
    Abstract: Various embodiments include methods and systems to dilute a sampled particle-laden aerosol stream. In one embodiment, a system to dilute a sampled aerosol stream includes an aerosol sample inlet. A filter is coupled in fluid communication with and in parallel with a flow-monitoring device to receive the sampled aerosol stream from the aerosol sample inlet. The flow-monitoring device is configured to allow for a passage of particles contained in the sampled aerosol stream. A pressure sensor and a temperature sensor monitor the filter and the flow-monitoring device. An output from the filter and the flow-monitoring device may be directed to particle measurement or particle sizing instrumentation. An actual dilution ratio of the output sent to the particle measurement or particle sizing instrumentation is determined based on a nominal flowrate of the flow-monitoring device and thermodynamic properties of a gas comprising the aerosol stream. Other methods and apparatuses are disclosed.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: August 4, 2020
    Assignee: TSI Incorporated
    Inventors: Jason Paul Johnson, Robert Anderson, Jeremy Jens Kolb, Aaron Serafin Avenido, Robert Plautz, Steven Keith Isvik
  • Patent number: 10705067
    Abstract: Methods and systems for testing performance of a catalyst element are provided. The catalyst element can be an oxidation catalyst element or a non-selective catalytic reduction catalyst element, where the subject methods and systems are configured for testing under various lambda (?) conditions. The subject methods and systems find use in a variety of applications where it is desired to test the performance of a catalyst element.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: July 7, 2020
    Assignee: Miratech Knoxville, LLC
    Inventors: Tracy D. Staller, Steven G. DeCicco, Lisa D. Mitchell, David Matthew Loy, Tom Sughrue
  • Patent number: 10684248
    Abstract: An NOx sensor includes a gas sensor element, a body member made of metal, and a protector made of metal. The body member is formed into a tubular shape extending in an axial direction and accommodates a gas sensor element internally of the same. The NOx sensor is formed into a tubular shape extending in the axial direction and includes an attachment member disposed such that a space extending in the axial direction is formed between the attachment member and the body member. The gas sensor element includes an oxygen concentration detection cell having an oxygen ion-conductive solid electrolyte layer and a detection electrode and a reference electrode formed on the solid electrolyte layer and forming a pair, and a heater for heating the oxygen concentration detection cell to a predetermined temperature. The oxygen concentration detection cell is disposed in the space.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: June 16, 2020
    Assignee: NGK Spark Plug Co., LTD.
    Inventors: Hitoshi Furuta, Masaki Nakagawa
  • Patent number: 10670564
    Abstract: A photoacoustic detector for detecting a gas which includes a resonant cavity having an inner wall capable of absorbing electromagnetic radiation and a passageway for circulating the gas through the resonant cavity. The detector also includes an electromagnetic source for generating an electromagnetic energy and an optical window associated with the electromagnetic source for introducing the electromagnetic energy into the resonant cavity towards the absorbing inner wall surface, thereby preventing the electromagnetic energy from radiating throughout the whole length of the resonant cavity. A pressure sensor is provided for detecting a pressure signal inside the resonant cavity which is representative of the gas being detected. A method is also provided for detecting a gas using the photoacoustic detector.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: June 2, 2020
    Assignee: 9334-3275 QUEBEC INC.
    Inventor: Stefan Voinea
  • Patent number: 10670485
    Abstract: An apparatus includes a gasket and a housing assembly. The gasket may have (i) a base portion, (ii) a column portion and (iii) a passage in communication with an exterior of the apparatus. The housing assembly may have a sealing edge and may be configured to hold a sensor. The sealing edge may seal to the base portion of the gasket. The sensor (a) may seal to the column portion of the gasket and (b) may be in communication with the exterior of the apparatus through the passage.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 2, 2020
    Assignee: VEONEER US INC.
    Inventor: Jacob Pusheck
  • Patent number: 10648394
    Abstract: An exhaust component assembly includes a housing having at least one mount area configured to be attached to another exhaust component. A primary heat shield is attached to the housing and includes at least one open area at the mount area. A secondary heat shield positioned adjacent to the primary heat shield to at least partially cover the mount area. A method of assembling the primary and secondary heat shields to the housing of the exhaust component assembly is also disclosed.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: May 12, 2020
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Robin Willats, Jerome Brian Hornback, Jeffery Warren Prairie, John G. Rohde, Thibaut Contremoulins, Maria Saur
  • Patent number: 10634032
    Abstract: An exhaust aftertreatment system for an internal combustion engine includes a selective catalytic reduction (SCR) device, an injection system disposed to inject reductant into the exhaust pipe upstream of the SCR device. A single ammonia sensor is disposed to monitor an exhaust gas feedstream downstream of the SCR device. A controller is in communication with the single ammonia sensor and the internal combustion engine and operatively is connected to the injection system. The controller includes an instruction set that is executable to monitor, via the single ammonia sensor, a magnitude of ammonia in the exhaust gas feedstream downstream of the SCR device and determine NOx efficiency of the SCR device based upon the magnitude of ammonia in the exhaust gas feedstream downstream of the SCR device. A fault is detected in the SCR device based upon the NOx efficiency.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: April 28, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Yue-Yun Wang, Raffaello Ardanese
  • Patent number: 10563886
    Abstract: An air sampling system configured to detect an air quality metric for a plurality of volumetric regions is disclosed. The system comprises an air sample return unit, an air flow controller, and at least one sensor. The air sample return unit is configured to independently transfer air from the plurality of regions as a plurality of air samples. The air flow controller is configured to receive each of the plurality of air samples and selectively direct a selected sample to a sensor supply line and the remainder of the samples to a sample purge line. The at least one sensor is configured to measure an air quality metric of the selected sample and communicate the air quality metric to a controller. The remainder of the air samples are directed to the air sample return unit throughout operation.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 18, 2020
    Assignee: Grand Valley State University
    Inventors: Leo M. McCormick, Sean M. McManus, Tom Michalak
  • Patent number: 10557817
    Abstract: A method of inspecting an electrode provided in a gas sensor element includes the steps of: producing, in advance, a calibration curve representing a relation between an Au maldistribution degree defined based on a ratio of an area of a portion at which Au is exposed on a noble metal particle surface and calculated from a result of XPS or AES analysis on an inspection target electrode, and a predetermined alternative maldistribution degree index correlated with the Au maldistribution degree and acquired in a non-destructive manner from the gas sensor element heated to a predetermined temperature; acquiring a value of the alternative maldistribution degree index for the inspection target electrode of the gas sensor element while the gas sensor element is heated to the predetermined temperature; and determining whether the Au maldistribution degree satisfies a predetermined standard based on the calibration curve and the acquired inspection value.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: February 11, 2020
    Assignee: NGK Insulators, Ltd.
    Inventors: Taku Okamoto, Yuki Nakayama, Soichiro Yoshida
  • Patent number: 10539482
    Abstract: The present description relates generally to methods and systems for detecting thermal aging and blackening in oxygen sensors. Thermal aging and blackening effects may be differentiated based on a monitored change in impedance in each of a pump cell and a Nernst cell of the oxygen sensor following application of an alternating voltage. In response to detection of thermal aging and/or blackening in the oxygen sensor corrective measures may be taken to ensure accurate oxygen estimation using the sensor.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: January 21, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael McQuillen, Gopichandra Surnilla, Richard E. Soltis, Daniel A. Makled, John Joseph Virga
  • Patent number: 10532316
    Abstract: A microcomputer acquires first and second NH3 electromotive forces from a first NH3 detection section and a second NH3 detection section, and computes a NH3 concentration, which is the concentration of NH3 contained in exhaust gas. The first and second NH3 detection sections output the first and second NH3 electromotive forces which vary with both the concentrations of NH3 and a flammable gas contained in the exhaust gas. The microcomputer acquires a second pumping current from an NOx detection section and computes an NOx concentration, which is the concentration of NOx contained in the exhaust gas. The NOx detection section outputs the second pumping current which varies with the concentration of NOx and the concentration of NH3. The microcomputer determines whether or not the exhaust gas contains the flammable gas based on at least the first and second NH3 electromotive forces and the second pumping current.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: January 14, 2020
    Assignee: NGK Spark Plug Co., LTD.
    Inventor: Yoshihiro Nakano
  • Patent number: 10527572
    Abstract: A gas sensor, disposed projecting from a wiring member serving as a mounting target and including a first wire and a second wire, the gas sensor detecting a gas that produces water in a case that the gas is combusted by being supplied with a voltage from the first wire and the second wire and measuring a resistance value using the first wire and the second wire, the gas sensor including a resistor holding a catalyst that facilitates combustion of the gas, a first electrode terminal connected between one end of the resistor and the first wire, and a second electrode terminal connected between another end of the resistor and the second wire, and the first electrode terminal and the second electrode terminal are fixed to each other and form a water vapor diffusion cavity.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: January 7, 2020
    Assignee: Nissha Co., Ltd.
    Inventors: Takashi Matsumoto, Mitsuharu Kira, Hiroki Yamamoto, Yuri Kuwahara
  • Patent number: 10512918
    Abstract: The subject of the invention is a procedure, a filter module, and an air cleaning device composed of such filter modules for the highly efficient cleaning of air containing small contaminating particles. In the course of the procedure, the principle of adhesion and repelling effect is exploited to capture the contaminating particles in the device composed of an appropriate number of filter modules (1). The air to be cleaned is moved like a quasi-electrodynamic linear engine in the device, so that the mass and/or size of the coagulated particles is increased by the powers of two as necessary while passing through two sequential filter modules (1), up to 220 value. This way, the flow velocity of the fine grains with increased mass is decreasing gradually and they are separated or fall out from the flow space, meaning that particles with a starting size below 1 micrometre, in the nano-range, which are the most harmful to the human body, may also be captured.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: December 24, 2019
    Inventor: Laszlo Schlemmer
  • Patent number: 10443527
    Abstract: An exhaust gas system includes an exhaust gas pipe through which exhaust gas flows in a flow direction and which has a pipe wall. A flange is arranged in the pipe wall and has a passage opening provided with an internal thread. A gas sensor, in particular a particle sensor, is provided for sensing the concentration of soot particles contained in the exhaust gas and has a threaded housing portion that is provided with an external thread and is screwed into the passage opening. An annular gap is produced between a radial outer face of the threaded housing portion and a passage-opening inner circumferential portion which protrudes into the interior of the exhaust gas pipe. The flange has a flow guiding element which extends over a downstream part of the circumference of the threaded housing portion and which is provided for limiting or largely preventing a flow around the gas sensor in the annular gap.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: October 15, 2019
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Gerwin Bumberger, Gerhard Hofer
  • Patent number: 10393713
    Abstract: A method for operating a probe having a pumped reference cell. A pulse-width-modulated pump current is applied to the reference cell at a first point in time. In accordance with the first point in time, a first voltage characteristic value (representing the voltage applied to the reference cell) is determined within a first time frame. The pulse-width-modulated pump current applied to the reference cell is switched off at a second point in time. A third point in time is determined, at which a pulse-width-modulated pump current applied to the reference cell is switched off. In accordance with the third point in time, a second voltage characteristic value (representing the voltage applied to the reference cell) is determined within a second time frame. The first and second voltage characteristic values are used to determine a diagnostic characteristic value, which is representative of an error in determining the nitrogen oxide concentration.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: August 27, 2019
    Assignee: Continental Automotive GmbH
    Inventors: Bertrand Lemire, Johannes Bentner, Sabrina Kolbeck, Muammer Kilinc
  • Patent number: 10329987
    Abstract: A system includes an exhaust system fluidly configured to define an exhaust stream. A sensor is arranged in the exhaust system and is configured to be exposed to the exhaust stream and accumulate particulate matter on the sensor. The sensor provides a signal that varies based upon an amount of particulate matter on the sensor. A control system is in communication with the sensor. The control system includes a controller configured to calculate a differential of a conductance signal related to the signal, compare consecutive differentials to identify an erroneous differential in an abnormal signal based upon an anomaly relating to the accumulation of the particulate matter, and reconstruct the abnormal signal by correcting the erroneous differential to produce a corrected, decimated conductance signal. The control system is configured to determine a total accumulated particulate matter adjusted for the anomaly.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: June 25, 2019
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Gerard W. Malaczynski, Gregory T. Roth
  • Patent number: 10190472
    Abstract: Systems and methods are provided for sensing particulate matter in an exhaust system of a vehicle. In one example, a system includes a tube with a plurality of gas intake apertures on an upstream surface, the tube having a horseshoe shape with a rounded notch on a downstream surface and a plurality of gas exit apertures positioned along a length of the rounded notch and a particulate matter sensor positioned inside the tube. In another examples, a system for sensing particulate matter comprises a first outer tube with a plurality of gas intake apertures on an upstream surface, a second inner tube position within the first outer tube and including a plurality of gas intake apertures on a downstream surface and an opening at a bottom surface for discharging exhaust gasses to an exhaust passage, and a particulate matter sensor positioned within the second inner tube.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: January 29, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Jianwen James Yi, Xiaogang Zhang
  • Patent number: 10145834
    Abstract: Incendivity test systems and methods are disclosed. Incendivity test systems include a non-flammable gas mixture and a test article in a test chamber. The non-flammable gas mixture includes a thermally reactive reagent that is formulated to thermally react to produce a reaction product. Incendivity test systems also include an energy source configured to apply an energy discharge such as a simulated lightning strike to the test article. Incendivity test systems also include a detection device configured to measure an indicator species in the non-flammable gas mixture (e.g., the thermally reactive reagent and/or the reaction product). Incendivity test methods include contacting the test article with the non-flammable gas mixture, applying the energy discharge to the test article, and then measuring the amount of the indicator species and determining the incendivity of the test article in response to the energy discharge based upon the amount of the indicator species.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: December 4, 2018
    Assignee: The Boeing Company
    Inventors: Jason Scott Damazo, Eddie Kwon, Andrew Michael Robb
  • Patent number: 10125658
    Abstract: A particulate sensor assembly may include a particulate sensor and a sensor housing. The particulate sensor may be configured to measure a quantity of particulate matter in a stream of exhaust gas from a combustion engine. The sensor housing may receive the particulate sensor and may include a cavity in which the particulate sensor is exposed to the exhaust gas. The cavity may be defined by a porous structure through which the exhaust gas may flow. The porous structure may filter a predetermined amount of particulate matter from the exhaust gas as the exhaust gas enters the cavity.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: November 13, 2018
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Benjamin C. Shade, Adam J. Kotrba
  • Patent number: 10067106
    Abstract: A sensor includes a detector element, a connection terminal, and a separator. The contacting portion is in contact with a conductive member so as to overlap the conductive member in a thickness direction, which is a direction of thickness of the detector element between the principal surfaces. The separator includes an element accommodation space that accommodates a portion of an element contact portion and an element back portion, and a partition wall that separates the element accommodation space from a terminal accommodation space that accommodates the contacting portion and a portion of the conductive member and that is adjacent to the element accommodation space in the thickness direction. A frame main body is disposed in an element-side region, which is a region on an element-accommodation-space side in the thickness direction in a region obtained by extending the terminal accommodation space toward the front side in the axial direction.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: September 4, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Kunihiko Yonezu, Takehiro Oba, Hisaharu Nishio, Ginjiro Ito, Yuichi Yamada
  • Patent number: 10048097
    Abstract: A gas sensor includes a sensor element that includes a gas inlet through which a measurement target gas is introduced into the sensor element and a protective cover that contains a substance having a capability of decomposing ammonia. The protective cover has a gas-contact surface area within a range of 450 mm2 to 1145 mm2, the gas-contact surface area being a sum of a surface area of a portion facing the inlet-side gas flow path and a surface area of a portion facing an in-element-chamber flow path of the sensor element chamber that is a shortest flow path for the measurement target gas from the element-chamber inlet to the gas inlet.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: August 14, 2018
    Assignee: NGK INSULATORS, LTD.
    Inventors: Tomoya Seimori, Mika Murakami, Kengo Takeuchi
  • Patent number: 10024727
    Abstract: The temperature sensor circuit includes a diode that is connected to a first potential at a cathode thereof. The temperature sensor circuit includes a voltage dividing circuit that is connected to an anode of the diode at a second end thereof and outputs a divided voltage. The temperature sensor circuit includes a second amplifying circuit that receives the first signal at a first input end thereof, receives the divided voltage at a second input end thereof, is connected to a first end of the voltage dividing circuit at an output end thereof and outputs a second signal so as to make the divided voltage equal to the first signal. The temperature sensor circuit includes a measuring circuit that calculates a voltage difference between the first signal and the second signal and outputs an output signal based on the result of the calculation.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: July 17, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masatomo Tanaka, Hiroyuki Suwabe, Tomoshige Abe
  • Patent number: 10006895
    Abstract: A system for monitoring atmospheric pollution, includes a mobile appliance fitted on a vehicle and a remote processing unit, the mobile appliance including a location unit for detecting geographic coordinates of the vehicle, an atmospheric sensor for detecting an atmospheric pollution value, a transmission unit for transmitting the geographic coordinates and the atmospheric pollution value, the remote processing unit including a receiving unit for receiving the geographic coordinates and the atmospheric pollution value, a processing unit for processing the geographic coordinates and the atmospheric pollution value for monitoring the atmospheric pollution inside a geographic area.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: June 26, 2018
    Assignee: C.R.D. CENTRO RICERCHE DUCATI TRENTO S.R.L.
    Inventors: Adriano Zanfei, Christian Marzadro, Ernesto Miorando
  • Patent number: 9976934
    Abstract: A sensor includes: a detection element; a separator including an insertion portion into which a rear side of the detection element is inserted, and a plurality of terminal housing portions that are disposed surrounding a circumference of the insertion portion around an axial direction, and extend in the axial direction; and a connection terminal that is electrically connected to an electrical connection terminal portion to form a current path. The connection terminal includes a frame body portion and an element contact portion. The sensor further includes a first regulation portion that is located at a position closer to the detection element relative to the frame body portion, in a direction in which a first main surface and a second main surface oppose each other, and regulates the movement of the frame body portion in a direction approaching the detection element.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: May 22, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Takehiro Oba, Yuichi Yamada, Kunihiko Yonezu
  • Patent number: 9936595
    Abstract: A wire retention cover for an antenna mounting arrangement within an electronic device is configured to be positioned over an edge of a printed circuit board and protect the antenna wires and connectors on the connector side thereof. A non-connector side portion or leg of the cover includes one or more slots for receiving antenna wires. A connector side portion or leg of the cover includes raised and lowered portions. The raised portions are configured to cover and protect antenna wire connections to the PCB.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: April 3, 2018
    Assignee: THOMSON Licensing
    Inventors: Mickey Hunt, William P. Dernier
  • Patent number: 9915637
    Abstract: First inner gas holes 134a and first outer gas holes 144a of a gas sensor are formed so that the following conditions are satisfied: a first-inner-hole count Nin?3, 0<an inner/outer hole count ratio Nr?0.5, and 0<an inner/outer hole-area ratio Ar?0.25, where the first-inner-hole count Nin represents the number of first inner gas holes 134a, a first-inner-hole average area Ain [mm2] represents (the total opening area of the first inner gas holes 134a)/(the first-inner-hole count Nin), a first-outer-hole count Nout represents the number of the first outer gas holes 144a, a first-outer-hole average area Aout represents (the total opening area of the first outer gas holes 144a)/(the first-outer-hole count Nout), the inner/outer hole count ratio Nr represents the first-inner-hole count Nin/the first-outer-hole count Nout, and the inner/outer hole-area ratio Ar represents the first-inner-hole average area Ain/the first-outer-hole average area Aout.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: March 13, 2018
    Assignee: NGK INSULATORS, LTD.
    Inventors: Takayuki Sekiya, Mika Murakami, Shingo Sokawa, Yosuke Okabe
  • Patent number: 9909759
    Abstract: In a combustion system, a charge source is configured to cooperate with a collection plate and a director conduit to cause at least one particle charge-to-mass classification to be reintroduced to a flame for further reaction.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: March 6, 2018
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: David B. Goodson, Tracy A. Prevo, Joseph Colannino, Robert E. Breidenthal, Igor A. Krichtafovitch, Christopher A. Wiklof
  • Patent number: 9903847
    Abstract: A sensor device includes a moisture module that includes a sensor element for detecting moisture of a fluid medium flowing in a flow direction and a protective membrane screening the sensor element. The sensor device includes a housing, in a measuring chamber of which the moisture module is at least partially situated, and that includes a protective tube extending into the flowing fluid medium in an axial direction perpendicular to the flow direction, the protective tube is designed for flow of the fluid medium into at least one inlet opening, through an inflow path, into the measuring chamber counter to the axial direction, and out of the measuring chamber via an outflow path in the axial direction and an outlet opening, where, with respect to a direction of gravity, the openings are at a bottom of the protective tube.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: February 27, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Bernd Kuenzl, Andreas Kaufmann, Uwe Konzelmann, Frank Steuber, Achim Briese
  • Patent number: 9857239
    Abstract: A method for temperature analysis of a gas stream. The method includes identifying a temperature parameter of an affected waveform signal. The method also includes calculating a change in the temperature parameter by comparing the affected waveform signal with an original waveform signal. The method also includes generating a value from the calculated change which corresponds to the temperature of the gas stream.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: January 2, 2018
    Assignees: Lawrence Livermore National Security, LLC, EmiSense Technologies, LLC
    Inventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
  • Patent number: 9857326
    Abstract: A method for analysis of a gas stream. The method includes identifying an affected region of an affected waveform signal corresponding to at least one characteristic of the gas stream. The method also includes calculating a voltage-current time differential between the affected region of the affected waveform signal and a corresponding region of an original waveform signal. The affected region and the corresponding region of the waveform signals have a sensitivity specific to the at least one characteristic of the gas stream. The method also includes generating a value for the at least one characteristic of the gas stream based on the calculated voltage-current time differential.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: January 2, 2018
    Assignees: Lawrence Livermore National Security, LLC, EmiSense Technologies, LLC
    Inventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
  • Patent number: 9857325
    Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: January 2, 2018
    Assignees: Lawrence Livermore National Security, LLC, EmiSense Technologies, LLC
    Inventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
  • Patent number: 9856810
    Abstract: A fuel cut during deceleration is executed at time point t1. An oxygen storage amount (rOS) which increases with this fuel cut is estimated based on an exhaust air-fuel ratio and an intake air quantity. When the oxygen storage amount (rOS) reaches a threshold value (at time point t2), a target compression ratio (tCR) is corrected to become lower than a basic target compression ratio (tCR). Although a fuel recovery is executed at time point t4, a combustion temperature is lowered because of the lowering of the mechanical compression ratio, so that a production of NOx in a combustion chamber is suppressed. Therefore, worsening of NOx is suppressed even if the oxygen storage amount (rOS) of exhaust-emission purification catalyst (4) is excessive.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: January 2, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Eiji Takahashi, Shinobu Kamada