Patents Examined by Thai-Ba Trieu
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Patent number: 10427099Abstract: A mixing system for an exhaust system includes a first mixing device having a plurality of first auger blades and an inlet having a first cross-sectional area. A second mixing device is separate and downstream from the first mixing device and includes a second auger blade. The second mixing device includes an inlet having a second cross-sectional area greater than the first cross-sectional area. A flow path longitudinal centerline of the first mixing device extends at an angle to a flow path longitudinal centerline of the second mixing device. A flow path longitudinal centerline of the first mixing device intersects the second auger blade. The first mixing device is disposed within a first portion of an exhaust pipe and the second mixing device is disposed in a second portion of the exhaust pipe. The second portion has a larger cross-sectional area than the first portion.Type: GrantFiled: September 26, 2018Date of Patent: October 1, 2019Assignee: Tenneco Automotive Operating Company Inc.Inventors: Jeffrey W. Denton, Eric A. Hein, Attila Kovacs, Kevin R. Reeder, Jonar Mendoza, Gary R. Moore, Manoj K. Sampath, John R. Hardin
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Patent number: 10422226Abstract: An airfoil for a turbine engine includes pressure and suction sides extending in a radial direction from a 0% span position at an inner flow path location to a 100% span position at an airfoil tip. The airfoil has a relationship between an axial leading edge location and a span position that is at least a third order polynomial with a generally U-shaped curve having an initial negative slope followed by a positive slope. The positive slope leans aftward and the negative slope leans forward. The curve has a critical point in the range of 30-50% span position at which the curve changes from the negative slope to the positive slope. The curve is generally linear from 55% span to 75% span and has a positive slope that increases at a rate of about 0.0875 inch (2.22 mm) per 1% span, +/?0.04 inch (1.01 mm) per 1% span.Type: GrantFiled: August 22, 2014Date of Patent: September 24, 2019Assignee: United Technologies CorporationInventors: Edward J. Gallagher, Byron R. Monzon, Ling Liu, Linda S. Li, Darryl Whitlow, Barry M. Ford
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Patent number: 10422276Abstract: A wastegate assembly with a valve head moved linearly toward and away from a wastegate port via a valve stem. When the valve is in an open position the valve seat face of the valve head is spaced apart from the valve seat. When the valve is in a closed position the valve seat face of the valve head is secured against the valve seat. The wastegate assembly includes a sidewall surrounding the wastegate port elongated in the direction of valve movement. The contoured side wall widens going away from the valve seat. The minimum flow area through the wastegate port is controlled such that the flow is choked via the side wall rather than the valve curtain area. The contoured side wall can be recessed into the housing or extend from the housing.Type: GrantFiled: March 23, 2018Date of Patent: September 24, 2019Assignee: BorgWarner Inc.Inventors: Robert Lotz, Brian Handlon, Jason Chekansky
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Patent number: 10408141Abstract: In a lean-burn engine equipped with a turbocharger, a responsiveness of a supercharging pressure in a lean region is enhanced by control of a valve timing of an exhaust valve while a combustion state is restrained from varying. A variable valve mechanism that can change an opening timing of the exhaust valve while keeping a closing timing of the exhaust valve constant, is included in the lean-burn engine. When a target operation point is located in the lean region, and when an actual supercharging pressure is lower than a target supercharging pressure, supercharging pressure increasing control that advances the opening timing while keeping the closing timing constant is executed by operating the variable valve mechanism.Type: GrantFiled: November 26, 2015Date of Patent: September 10, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Shintaro Hotta
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Patent number: 10408113Abstract: A self-correcting exhaust gas temperature sensor system includes an exhaust gas temperature sensor, a controller and a storage device. The exhaust gas temperature sensor is configured to be disposed in an exhaust manifold of a vehicle. The controller is programmed to determine a reading of the exhaust gas temperature sensor at a predetermined time, determine a comparative temperature value, calculate an offset difference between the comparative temperature value and the reading of the exhaust gas temperature sensor, and based on the offset difference relative of the comparative temperature value, replace an exhaust gas temperature sensor offset value with the offset difference or with a threshold value. The storage device is configured to store the offset difference or the threshold value.Type: GrantFiled: March 15, 2017Date of Patent: September 10, 2019Assignee: Nissan North America, Inc.Inventor: Yichao Guo
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Patent number: 10408148Abstract: A control system includes a supercharged engine and an electronic control unit. The supercharged engine including: a combustion chamber; an exhaust passage; a turbine; and an exhaust catalyst. The turbine includes a turbine wheel, and a turbine control valve. The electronic control unit is configured to calculate a first exhaust gas temperature and a second exhaust gas temperature that are temperatures of exhaust gas flowing into the exhaust catalyst. The electronic control unit is configured to control the turbine control valve such that: the turbine control valve is set to the first valve opening degree when the first exhaust gas temperature is higher than the second exhaust gas temperature; and that the turbine control valve is set to the second valve opening degree when the second exhaust gas temperature is higher than the first exhaust gas temperature.Type: GrantFiled: March 9, 2017Date of Patent: September 10, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tomohiro Yamazaki
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Patent number: 10400693Abstract: A turbocharger system for an engine of a vehicle includes a variable geometry turbine configured to receive exhaust gas from the engine. The variable geometry turbine includes adjustable vanes and a vane actuator to adjust the adjustable vanes between at least an open position and a closed position. The turbocharger further includes an intake duct configured to receive intake air; a first compressor rotationally coupled to the variable geometry turbine and fluidly coupled to the intake duct to compress at least a first portion of the intake air; an electric compressor fluidly coupled to the intake duct to selectively compress at least a second portion of the intake air; and a manifold conduit fluidly coupled to the first compressor and the electric compressor and configured to receive and direct the first and second portions of the intake air to a manifold of the engine.Type: GrantFiled: July 7, 2017Date of Patent: September 3, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Riccardo Baria, Alberto Racca
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Patent number: 10393072Abstract: The internal combustion engine includes a compressor for supercharging intake air, an EGR device for introducing EGR gas into an intake passage at a position on an upstream side relative to the compressor, and a collecting pocket that is provided at an outer circumference of a compressor inlet and that collects condensed water generated inside the intake passage on an upstream side relative to the compressor. The collecting pocket opens towards the upstream side of the compressor, and is formed in a circular ring shape that surrounds the outer circumference of the compressor inlet. The collecting pocket includes a partition wall that holds back a flow of condensed water that attempts to move in a downward gravitational direction inside an internal space of the collecting pocket.Type: GrantFiled: January 16, 2015Date of Patent: August 27, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Taku Segawa
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Patent number: 10378470Abstract: Methods and systems are provided for providing passive boost pressure monitoring for slow response with higher confidence. A response time of a boost pressure feedback control loop following a boost pressure deviation that is triggered by either system disturbances or operator torque demand is monitored. Slow boost behavior is correlated with boost control degradation affecting drivability and emissions.Type: GrantFiled: June 12, 2017Date of Patent: August 13, 2019Assignee: Ford Global Technologies, LLCInventors: Stephen William Magner, Michiel J. Van Nieuwstadt, John Erik Mikael Hellstrom, In Kwang Yoo, Adarsh Appukuttan, Jason Ronald Smith
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Patent number: 10378429Abstract: A hybrid intercooler system is provided and includes an air cooler that is configured to exchange heat with exterior air passing through an outer wall of a plurality of compressed intake air paths to cool a compressed intake air passing through the inside of the compressed intake air paths. Further, a water cooler is configured to exchange heat between a water cooler coolant enclosing the outer wall of the compressed intake air paths and the compressed intake air which is cooled in the air cooler. The water cooler includes a water cooler coolant tank that encloses the compressed intake air paths.Type: GrantFiled: August 9, 2016Date of Patent: August 13, 2019Assignee: Hyundai Motor CompanyInventor: Dang-Hee Park
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Patent number: 10378406Abstract: An exhaust emission control apparatus is provided with a supply device, a catalyst, and a gas pressure reduction part. The supply device supplies a reducing agent to an exhaust passage. The catalyst purifies an exhaust gas by the use of the reducing agent. The gas pressure reduction part can make a gas pressure near the supply port lower than the gas pressure on the inside of a supply device body. A NOx catalyst adsorbs nitrogen oxide contained in the exhaust. NOx adsorbed by the NOx catalyst is desorbed from the NOx catalyst when the exhaust gas is purified. An ECU estimates an adsorption amount of NOx. Then, the ECU estimates a desorption amount of NOx desorbed from the NOx catalyst on the basis of the estimated adsorption amount of NOx.Type: GrantFiled: May 10, 2016Date of Patent: August 13, 2019Assignee: DENSO CORPORATIONInventors: Kengo Furukawa, Yusuke Hongo, Jun Osaka, Yoshiho Uchiyama, Takamasa Itou, Wakichi Kondoh, Masaki Takeyama, Kohei Motoo
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Patent number: 10378459Abstract: Methods and systems are provided for indicating degradation of a VCR mechanism that mechanically alters a cylinder compression ratio. Degradation is detected based on an elevated knock incidence and increased spark retard usage. If the VCR mechanism is stuck, knock and pre-ignition that could be induced by continued operation in a higher than intended compression ratio is mitigated by limiting the engine load.Type: GrantFiled: March 23, 2017Date of Patent: August 13, 2019Assignee: Ford Global Technologies, LLCInventor: Chris Paul Glugla
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Patent number: 10371060Abstract: A compound engine assembly with an engine core including at least one internal combustion engine, a turbine section including a turbine shaft in driving engagement with the engine shaft, and a compressor, and a firewall. The compressor is located on one side of the firewall, and the turbine section and the engine core are located on the other side. The assembly may include a gearbox module with the turbine section and the engine core located on a same side of the gearbox module casing and the compressor located on the opposite side of the gearbox module casing, and with the firewall extending from the gearbox module casing. One or more rotatable accessory may be located on a same side of the firewall as the compressor. A method of reducing fire hazard in a compound engine assembly is also discussed.Type: GrantFiled: September 24, 2015Date of Patent: August 6, 2019Assignee: Pratt & Whitney Canada Corp.Inventors: Sylvain Lamarre, Andre Julien, Michael Gaul, Jean Thomassin, Ilya B. Medvedev, Sergey Usikov, Andrey Zolotov
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Patent number: 10371037Abstract: An exhaust system for an internal combustion engine is provided. The exhaust system includes an exhaust manifold receiving exhaust gas from a cylinder, an emission control device positioned downstream of the exhaust manifold, an electric heating device positioned in an exhaust line upstream of the emission control device and downstream of the exhaust manifold, the electric heating device including a frame at least partially surrounding a heating element, and an adjustment device configured to, during operation of the internal combustion engine, adjust the drag generated by the electric heating device in an exhaust gas flow through the exhaust line.Type: GrantFiled: January 19, 2017Date of Patent: August 6, 2019Assignee: Ford Global Technologies, LLCInventors: Moritz Klaus Springer, Thomas Lorenz, Albert Breuer, Jan Linsel, Jan Mehring
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Patent number: 10364755Abstract: An exhaust control device for engine configures an exhaust system by joining exhaust pipes at a collecting pipe. The exhaust pipes are coupled to a plurality of respective cylinders. At least two types of exhaust valves are configured to perform an exhaust control at different parts in the exhaust system. The exhaust control device for engine includes first exhaust valves, a second exhaust valve, and an actuator. The first exhaust valves are mounted to a plurality of communicating pipes and communicating the predetermined exhaust pipes. The second exhaust valve is mounted to the collecting pipe. The actuator is configured to drive to open and close the second exhaust valve. The first exhaust valves are configured to be driven to open and close corresponding to an actuating region of the second exhaust valve.Type: GrantFiled: October 4, 2016Date of Patent: July 30, 2019Assignee: SUZUKI MOTOR CORPORATIONInventor: Takayoshi Muramatsu
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Patent number: 10344633Abstract: An adjusting device, in particular for adjustment of a camshaft of an internal combustion engine, is disclosed. The adjusting device includes a brake unit which has at least one brake disc and at least one electromagnet for actuating the brake unit. The electromagnet has a yoke and an armature formed separately from the brake disc, where the brake disc is disposed at least partially spatially between the yoke and the armature of the electromagnet.Type: GrantFiled: March 15, 2014Date of Patent: July 9, 2019Assignee: Daimler AGInventors: Alexander Gaisberg-Helfenberg, Markus Lengfeld, Jens Meintschel, Thomas Stolk
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Patent number: 10344870Abstract: In one aspect, described is a rotor for a Wankel engine comprising two circumferentially spaced apart apex seals at each of the apex portions with each apex seal protruding axially from both end faces, and each apex seal having a first biasing member biasing the apex seal radially outwardly away from the peripheral face of the body, and a second biasing member biasing the apex seal axially outwardly away from a respective one of the end faces, the two apex seals of a same one of the apex portions being biased by the respective second biasing member in opposite axial directions from one another.Type: GrantFiled: October 14, 2011Date of Patent: July 9, 2019Assignee: Pratt & Whitney Canada Corp.Inventors: Eugene Gekht, Jean Thomassin, Sebastien Bolduc, David Gagnon-Martin
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Patent number: 10337386Abstract: A method and system is disclosed to test for a proper functioning of a selective catalytic reduction system of an internal combustion engine. The engine is operated at idle speed and a functionality check of the pressure sensor is executed. The engine is operated to increase an exhaust gas temperature in the exhaust pipe upstream of the catalyst and a functionality check of the pump is executed. A functionality check of the injector is executed after the functionality check of the pump and once the exhaust gas temperature has reached a predetermined target value thereof. A functionality check of the supply conduit is executed after the functionality check of the injector. The selective catalytic reduction system is identified as functioning properly when all of the functionality checks yields a positive result or malfunctioning when any one of the functionality checks yields a negative result.Type: GrantFiled: October 6, 2016Date of Patent: July 2, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Alberto Giordano, Luis Daniel Guerrero Cruz, Mariano Nocereto
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Patent number: 10337401Abstract: A turbine engine is provided that includes a turbo-compressor, a combustor section, a flow path and a recuperator. The turbo-compressor includes a compressor section and a turbine section. The combustor section includes a combustor and a plenum adjacent the combustor. The flow path extends through the compressor section, the combustor section and the turbine section. The recuperator is configured with the flowpath between the combustor section and the turbine section. An inlet duct to the recuperator is fluidly coupled with the flow path upstream of the plenum. An outlet duct from the recuperator is fluidly coupled with the plenum.Type: GrantFiled: February 13, 2015Date of Patent: July 2, 2019Assignee: United Technologies CorporationInventors: Daniel B. Kupratis, William G. Sheridan
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Patent number: 10337433Abstract: An exhaust purification system includes: an NOx reduction type catalyst, which is provided in an exhaust passage; an intake air amount sensor, which detects an intake air amount of the internal combustion engine; and a controller, which executes a regeneration treatment that recovers an NOx purification capacity of the NOx reduction type catalyst by switching an exhaust air fuel ratio from a lean state to a rich state by using: an air-system control to reduce the intake air amount; and an injection-system control to increase a fuel injection amount, wherein, in response to a detection value of the intake air amount sensor, the controller changes at least one of a fuel injection timing and the fuel injection amount in the internal combustion engine, in at least one period of switching of: a period of starting the regeneration treatment; and a period of ending the regeneration treatment.Type: GrantFiled: September 11, 2015Date of Patent: July 2, 2019Assignee: ISUZU MOTORS LIMITEDInventors: Masaaki Nishito, Teruo Nakada, Takayuki Sakamoto, Daiji Nagaoka, Masashi Gabe
