Patents Examined by Brian R Kirby
-
Patent number: 11352964Abstract: Portable jobsite equipment includes a generator including an internal combustion engine and an alternator. The internal combustion engine includes a first cylinder including a first spark plug configured to create a first electrical spark, a second cylinder including a second spark plug configured to create a second electrical spark, an electronic control unit configured to activate and deactivate at least one of the first cylinder and the second cylinder, and a load source receiving supplied power from the generator. The electronic control unit activates one of the first cylinder and the second cylinder in response to a threshold increase of the load source.Type: GrantFiled: October 5, 2018Date of Patent: June 7, 2022Assignee: Briggs & Stratton, LLCInventors: Robert Koenen, Jason Hansen, Jacob Zuehl
-
Patent number: 11339728Abstract: Methods and systems are provided for engine braking in a vehicle. In one example, a method may include, in response to an engine braking request: deactivating fueling to at least one engine cylinder, decreasing an effective flow area of a turbine inlet of a variable geometry turbocharger (VGT), and adjusting an intake valve of the at least one engine cylinder based on a requested braking torque of the engine braking request and the effective flow area of the turbine inlet. In this way, increased exhaust backpressure may be generated to increase engine pumping losses while the intake valve adjustment increases in-cylinder pumping losses, thereby increasing an amount of engine braking torque.Type: GrantFiled: December 8, 2020Date of Patent: May 24, 2022Assignee: Ford Global Technologies, LLCInventor: Douglas Martin
-
Patent number: 11339747Abstract: An engine device including an exhaust manifold provided on an exhaust side surface of a cylinder head, and an exhaust pressure sensor configured to detect an exhaust gas pressure in the exhaust manifold. The exhaust pressure sensor is attached to the cylinder head. The exhaust pressure sensor is connected to the exhaust manifold through an exhaust pressure bypass path provided in the cylinder head and an exhaust pressure detection pipe connecting the exhaust pressure bypass path to the exhaust manifold. A cooling water passage is provided nearby the exhaust pressure bypass path, in the cylinder head.Type: GrantFiled: December 26, 2017Date of Patent: May 24, 2022Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventor: Ippei Suzuki
-
Patent number: 11333097Abstract: An internal combustion engine condition determination apparatus includes a storage device; and an execution device. The storage device stores mapping data that defines a mapping. The execution device is configured to execute an acquisition process of acquiring an internal combustion engine state variable every time a crankshaft of an internal combustion engine rotates by a predetermined angle, and a determination process of determining a condition of the internal combustion engine based on an output obtained through the mapping using the internal combustion engine state variable as an input. The mapping data is trained by machine learning. The execution device is configured to prohibit the determination process when a rotation speed of the crankshaft is equal to or higher than a predetermined threshold.Type: GrantFiled: June 29, 2020Date of Patent: May 17, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yohsuke Hashimoto, Akihiro Katayama, Yuta Oshiro, Kazuki Sugie, Naoya Oka
-
Patent number: 11326535Abstract: A CPU substitutes a difference between a crank-side speed that is a rotation speed of a crankshaft and a downstream-side speed that is a speed of a portion, opposite from the crankshaft, in a damper into a differential speed. The CPU calculates a torsion speed component that is a speed component of the crankshaft due to torsion of the damper based on a physical model of which an input is the differential speed, and calculates a time that is a variable indicating a speed of the crankshaft, used to determine a misfire, based on the torsion speed component. The CPU delays acquisition time of the downstream-side speed used to calculate the differential speed, with respect to acquisition time of the crank-side speed according to the rotation speed of the crankshaft.Type: GrantFiled: June 14, 2021Date of Patent: May 10, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hitoki Sugimoto
-
Patent number: 11313337Abstract: A pulsation damper is small in size and can achieve an appropriate supporting force for a diaphragm damper. A pulsation damper accommodated in a case includes a diaphragm damper having a gas sealed therein, and a first support member and a second support member that are disposed between the case and the diaphragm damper and that hold the diaphragm damper.Type: GrantFiled: August 8, 2019Date of Patent: April 26, 2022Assignee: FUJIKOKI CORPORATIONInventors: Hideyuki Yanagiya, Shin Yoshida, Makoto Sudo
-
Patent number: 11293395Abstract: In an engine having fuel supply means for supplying fuel containing gasoline to a combustion chamber and ignition means for igniting an air-fuel mixture, if knocking occurs when ignition is performed at a reference ignition timing set on a retarded side of MBT that is an ignition timing at which the engine torque is maximized in a high-load region in which the engine load is larger than a predetermined load, ignition advance control that causes the ignition means to perform ignition at a timing on an advanced side of the reference ignition timing is performed.Type: GrantFiled: July 9, 2019Date of Patent: April 5, 2022Assignee: Mazda Motor CorporationInventors: Mitsuo Hitomi, Eiji Nakai, Naohiro Yamaguchi, Hiroki Morimoto
-
Patent number: 11293390Abstract: A fuel pump for a liquid fuel injection system of a motor vehicle is provided. The fuel pump for a fuel injection system includes a low-pressure pump that provides liquid fuel from a fuel tank of the motor vehicle at a low pressure. A high-pressure pump in fluid communication with the low-pressure pump and compresses the liquid fuel from the low pressure to a high pressure for injecting the liquid fuel into an internal combustion engine of the motor vehicle. A pump drive drives the low-pressure pump and the high-pressure pump synchronously with a pump frequency independently from an engine speed of the internal combustion engine of the motor vehicle.Type: GrantFiled: August 12, 2020Date of Patent: April 5, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Stephan Revidat, Johannes Ullrich
-
Patent number: 11285571Abstract: A system comprises a holder including a mounting feature configured to mount to a flange of a fuel injector and a block including a mounting feature configured to mount to a side of the flange that is opposite from the holder. The system includes, punch configured to pass through at least one punch aperture in the block. The punch aperture is configured to guide a tip of the punch into position to deform a c-seal seated in a seal channel of the flange. A method for using the system using the system is also disclosed.Type: GrantFiled: January 25, 2021Date of Patent: March 29, 2022Assignee: Delavan Inc.Inventor: Robert W. Vierhout
-
Patent number: 11285937Abstract: A catalyst warm-up control method for a hybrid vehicle supplies electric power to an electric motor by a battery, to charge the battery by a power generation engine, and to treat exhaust gas from the engine with a catalyst, the hybrid vehicle selecting a manner mode in which power generation using the engine is stopped. The catalyst warm-up control method performs catalyst warm-up control such that when the temperature of the catalyst becomes lower than a normal threshold temperature for activating the catalyst, the target rotation speed of the engine is controlled to a first warm-up required rotation speed at which the catalyst can be heated to a temperature that is higher than the normal threshold temperature. When the manner mode is selected, control is performed when temperature of the catalyst becomes lower than a manner mode threshold temperature that is equal to or less than the normal threshold temperature.Type: GrantFiled: December 15, 2017Date of Patent: March 29, 2022Assignee: Nissan Motor Co., Ltd.Inventors: Shinsuke Higuchi, Hidekatsu Akiyama, Azusa Kobayashi, Keisuke Kawai, Takashi Kamijo, Tsuyoshi Ishikawa
-
Patent number: 11261811Abstract: Provided is a signal processing device capable of effectively reducing a work load of a parameter setting operator in response to an increase in parameters constituting complicated filter control. Therefore, in the signal processing device filters an output signal from a sensor mounted on a vehicle, setting is made with respect to a plurality of filters having different filter types or filter coefficients for setting a filter characteristic of a cutoff frequency or a pass band, an individual code is set for each of the plurality of filters, and the signal processing device includes a CPU that selects the individual code based on an engine operating state so that a corresponding filter is selected, and processes an output signal from the sensor using the filter that has been selected.Type: GrantFiled: August 8, 2019Date of Patent: March 1, 2022Assignee: HITACHI ASTEMO, LTD.Inventor: Yoshihiko Akagi
-
Patent number: 11255307Abstract: A fuel injection device includes at least one fuel injector and a receiving bore in a cylinder head as well as a receiving opening of a fuel rail for the fuel injector. The fuel injector is sealed using at least one sealing ring against the walls of the receiving opening and secured in the receiving opening with the aid of a fastening element. A compensating element is provided that acts on the fastening element to prevent bending moments as a result of an asymmetrical suspension of the fuel injector at the fastening element from acting on the fuel injector. The fuel injector device is particularly suitable for directly injecting fuel into a combustion chamber of a mixture-compressing, spark-ignition internal combustion engine.Type: GrantFiled: February 24, 2021Date of Patent: February 22, 2022Assignee: Robert Bosch GmbHInventor: Ralf Kromer
-
Patent number: 11248545Abstract: Systems and methods for operating an engine with deactivating and non-deactivating valves are presented. In one example, estimates of engine fuel consumption for operating the engine with a plurality of cylinder modes or patterns while a transmission is engaged in different gears are determined and are used as a basis for deactivating engine cylinders.Type: GrantFiled: May 19, 2020Date of Patent: February 15, 2022Assignee: Ford Global Technologies, LLCInventor: Chris Paul Glugla
-
Patent number: 11248546Abstract: Engine controllers and control schemes are provided for managing engine state transitions requiring increased compressor pressure ratios in turbocharged engines operating in a cylinder output level modulation mode (e.g., skip fire, multi-level skip fire, or firing level modulation modes). In some circumstances, turbo lag can be mitigated by initially transitioning the engine to an intermediate effective firing density that is higher than both the initial and target effective firing density to increase the flow of gases through the engine and the turbocharger while maintaining a compressor ratio the same as or close to the initial compressor pressure ratio. After reaching a point where the desired torque is actually generated at the intermediate effective firing density, the operational effective firing density is gradually reduced to the target effective firing density while increasing the operational compressor pressure ratio to the target compressor ratio.Type: GrantFiled: October 26, 2020Date of Patent: February 15, 2022Assignees: Tula Technology, Inc., Cummins Inc.Inventors: Elliott A. Ortiz-Soto, Shahaboddin Owlia
-
Patent number: 11236694Abstract: An injector failure cylinder diagnosis method based on signal deviation of an injector failure diagnosis system measures, by a controller, noise/vibration signals due to the combustion of an engine, separates an injector abnormal frequency band signal as an injector signal from the noise/vibration signals, divides cylinder number time series data, which use a signal maximum value of the noise/vibration signals as a cylinder #1, into segments, extracts a feature vector after confirming a segment number of the cylinder #1 with a vibration reduction signal of the noise/vibration signals re-measured using one of the cylinders as an idle cylinder and sorting it by injector causing vibration time series data, and confirms a failure injector with the feature vector, thereby independently diagnosing whether the injector for each cylinder is normal or abnormal considering the deviation of the noise/vibration signals between the injectors for each cylinder from the measured noise and vibration signals.Type: GrantFiled: December 3, 2020Date of Patent: February 1, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Seung-Hyun Lee, In-Soo Jung, Dong-Chul Lee
-
Patent number: 11226264Abstract: A method for the diagnosis of engine misfires in an internal combustion engine having at least one cylinder, and includes the steps of: Determining exhaust back pressure values of the individual cylinders over at least two working cycles, correlating the exhaust back pressure values with the camshaft position and/or the working cycle, determining the exhaust back pressure maxima and/or exhaust back pressure minima per working cycle, comparing the exhaust back pressure maxima and/or exhaust back pressure minima between the individual cylinders—in the case of multiple cylinders—and/or to maximum and/or minimum values from previous working cycles and determining the deviations, comparing the deviations to a predetermined threshold value. The invention also relates to a control device for carrying out the method and a motor vehicle including such a control device.Type: GrantFiled: August 31, 2020Date of Patent: January 18, 2022Assignee: Volkswagen AktiengesellschaftInventors: Andre Shurkewitsch, Heiko Sternberg, Nikolaus Zimbalist, Robert Wetten, Elmar Millich, Jan Vogelsang
-
Patent number: 11220987Abstract: Disclosed is a metal diaphragm damper that is hard to fracture even when repeated stress is applied thereto. A disk-shaped metal diaphragm damper is provided with diaphragms each having a deformable portion provided at the center and an outer circumferential fixation portion formed by outer circumferential rims of the diaphragms and that is filled with gas. The deformable portion has a third curved portion located at the radially outward side thereof and formed to be bulged; a first curved portion located radially inward of the third curved portion and formed to be bulged out; and a second curved portion located between the third curved portion and the first curved portion. The second curved portion includes at least one curved wall part which is formed to be dented in.Type: GrantFiled: November 20, 2018Date of Patent: January 11, 2022Inventors: Toshiaki Iwa, Yoshihiro Ogawa, Yusuke Sato
-
Patent number: 11215148Abstract: A power system comprises an engine configured to combust an air/fuel mixture and produce a flow of exhaust gas; an exhaust passageway fluidly connected to the engine to receive the flow of exhaust gas; an exhaust gas recirculation loop fluidly connecting the exhaust passageway to a fuel intake for the engine; a first conversion zone containing a fuel reforming catalyst located within the exhaust gas recirculation loop; and a second conversion zone located within the exhaust gas recirculation loop separate from and downstream of the first conversion zone stream, the second conversion zone containing a fuel cracking catalyst.Type: GrantFiled: July 3, 2019Date of Patent: January 4, 2022Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Shamel Merchant, Eugine Choi, Walter Weissman, Tilman W. Beutel, John F. Brody, Gerardo Majano, Karl G. Strohmaier, Brian Weiss, Robert J. Colby, Makoto Koike, Hiroshi Miyagawa, Seiji Yamamoto
-
Patent number: 11208094Abstract: A hybrid vehicle has an engine (E) that is capable of changing a combustion mode between a stoichiometric combustion mode and a lean combustion mode and a motor/generator (MG) that is capable of performing torque assist by a power running operation and torque absorption by a regenerative operation. As a boundary between a stoichiometric combustion operating region and a lean combustion operating region, a second boundary (L2) at a torque decrease has a hysteresis at a low torque side with respect to a first boundary (L1) at a torque increase. Upon shift from the stoichiometric combustion operating region to the lean combustion operating region, for delay in increase of an intake-air quantity, decrease in fuel and the torque assist by the motor/generator (MG) are carried out, and an exhaust air-fuel ratio is changed stepwise.Type: GrantFiled: October 12, 2017Date of Patent: December 28, 2021Assignee: NISSAN MOTOR CO., LTD.Inventors: Morihiro Nagamine, Hiromu Terai, Takeshi Watanabe, Atsushi Teraji, Hiroyuki Suzuki
-
Patent number: 11204008Abstract: Various embodiments include a fuel injection assembly comprising: a fuel injector; an injector cup comprising a cylindrical body with a cavity at the lower end to receive a fuel inlet port of the injector; a holding element for securing the injector to the cup; a spring clip; and a first opening formed in a peripheral wall of the cup for receiving the holding element. The holding element comprises a U-shaped body with two parallel arms engaging opposite sides of an annular groove in the injector to secure the injector in the cup. When inserted in the cup, the free ends of the two arms project from the cup, and include adjacent the free ends a retention arrangement engageable by the spring clip. The spring clip comprises a depending leg engageable in a corresponding receiving part on the injector to locate the angular position of the injector relative to the cup.Type: GrantFiled: September 28, 2017Date of Patent: December 21, 2021Assignee: VITESCO TECHNOLOGIES GMBHInventors: Marco Pasquali, Andrea Puccini