With Means To Provide Additional Motive Fluid For Motor Patents (Class 60/606)
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Patent number: 11635041Abstract: An engine is provided, which includes an engine body including a plurality of cylinders, each of the cylinders being provided with an intake port, an exhaust port, an intake valve, and an exhaust valve, an intake passage and an exhaust passage connected to the engine body, and a turbocharger including a turbine provided to the exhaust passage and a compressor provided to the intake passage. A geometric compression ratio of the cylinder is 11:1 or higher. An open period of the intake valve is a range of 270° or larger by a crank angle. The exhaust passage includes a plurality of independent exhaust passages, each communicating with the exhaust port of one cylinder or with the exhaust ports of two or more cylinders of which timings of exhaust strokes are discontinuous from each other, and connecting the engine body to the turbine.Type: GrantFiled: January 31, 2022Date of Patent: April 25, 2023Assignee: Mazda Motor CorporationInventors: Naohiro Yamaguchi, Mitsunori Wasada, Satoshi Imamura, Toshimasa Kotani
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Patent number: 11220945Abstract: A method is disclosed for operating an internal combustion engine which comprises a primary air system for providing fresh air and a secondary air system. The secondary air system is configured to branch off secondary air from the primary air system and blow it into an exhaust gas duct. The secondary air system has a compressor for feeding the secondary air and a secondary air valve for shutting off or enabling the blowing in of secondary air. The method includes (i) activating the compressor while the secondary air valve is kept closed, (ii) determining whether compressor surging is occurring or is directly imminent, (iii) sensing at least one sensor signal if compressor surging is occurring or is directly imminent, and (iv) determining whether there is a leak in the secondary air system, on the basis of the sensed sensor signal.Type: GrantFiled: May 5, 2021Date of Patent: January 11, 2022Assignee: Robert Bosch GmbHInventors: Holger Jessen, Michael Baeuerle
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Patent number: 11220955Abstract: The invention relates to a compressor for inducting an internal combustion engine, comprising an electric motor (3) for driving a first compressor wheel (4), wherein, in at least one operating state, an inlet-side, first gas flow (5a) of the internal combustion engine (1) is compressed by the compressor (2), wherein the compressor (2) comprises a first compressor path (5) for the first gas flow (5a) and a second compressor path (6) for a second gas flow (6a), wherein the second gas flow (6a), in particular, in at least one operating state, opens into an exhaust gas flow (8) of the internal combustion engine (1) as a secondary air flow (6a).Type: GrantFiled: December 20, 2019Date of Patent: January 11, 2022Assignee: BorgWarner Inc.Inventors: Patric Hoecker, Cathrin Bergner, Uwe Tomm, Alexander Studnev
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Patent number: 11125111Abstract: A method (500) and apparatus (50, 60) for lubrication of a gearbox (30) of an aircraft engine comprise provision (502) of oil to the gearbox (30) through a primary oil system (50) driven by a core (11) of the engine (10) in normal conditions; detection (504) of windmilling conditions and/or failure of the primary oil system (50); and in response to the detected condition or failure, activation (506) of an electric pump (61) of an auxiliary oil system (60), to provide oil to the gearbox (30).Type: GrantFiled: February 22, 2019Date of Patent: September 21, 2021Assignees: ROLLS-ROYCE plc, ROLLS-ROYCE DEUTSCHLAND LTD & CO KGInventors: John R Mason, Thomas Philip Astley
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Patent number: 11002185Abstract: There is disclosed a method of operating an engine assembly, including: driving a load with an internal combustion engine and an output of a turbine section, the turbine section driven by combustion gases from an exhaust the internal combustion engine; and injecting fuel upstream of the turbine section and downstream of the exhaust of the internal combustion engine. An engine assembly having a secondary injector for injecting fuel upstream of the turbine section and downstream of the combustion engine is also disclosed.Type: GrantFiled: March 27, 2019Date of Patent: May 11, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Sebastien Bergeron, Andre Julien
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Patent number: 10995657Abstract: Described herein is a turbocharging system comprising a compressor having an air inlet and a compressed air outlet, the compressed air outlet to couple with the intake manifold of the internal combustion engine, a first turbine coupled to the compressor, the compressor driven without using power from the internal combustion engine; and a vacuum compressor coupled directly or indirectly to the first turbine. The first turbine can drive a common drive shaft that includes the compressor and the vacuum compressor or output of the first compressor can drive a second compressor that is coupled with the vacuum compressor. The vacuum compressor can be used to scavenge exhaust from the internal combustion engine.Type: GrantFiled: December 19, 2018Date of Patent: May 4, 2021Inventor: John Manley McDonald
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Patent number: 10995670Abstract: Electrical power systems, including generating capacity of a gas turbine, where additional electrical power is generated utilizing a separately fueled system during periods of peak electrical power demand.Type: GrantFiled: November 5, 2018Date of Patent: May 4, 2021Assignee: Powerphase International, LLCInventor: Robert J. Kraft
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Patent number: 10968824Abstract: A compound cycle engine having an output shaft; at least two rotary units each defining an internal combustion engine, a first stage turbine, and a turbocharger is discussed. The first stage turbine includes a rotor in driving engagement with the output shaft between two of the rotary units. The exhaust port of each rotary unit is in fluid communication with the flowpath of the first stage turbine upstream of its rotor. The outlet of the compressor of the turbocharger is in fluid communication with the inlet port of each rotary unit. The inlet of the second stage turbine of the turbocharger is in fluid communication with the flowpath of the first stage turbine downstream of its rotor. The first stage turbine has a lower reaction ratio than that of the second stage turbine. A method of compounding at least two rotary engines is also discussed.Type: GrantFiled: October 10, 2018Date of Patent: April 6, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Sebastien Bolduc, Mike Fontaine, Luc Landry, Jean Thomassin
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Patent number: 10900664Abstract: A fuel gas nozzle used in a microturbine includes a first chamber, a second chamber connected to the first chamber, a pilot fuel gas pipe, a main fuel gas pipe and an intake pipe. An intake zone and a mixing zone are respectively formed in the first chamber and the second chamber and are communicated with each other. The pilot fuel gas pipe is for introducing a first fuel gas into a downstream of the second chamber. The main fuel gas pipe is for introducing a second fuel gas into the mixing zone via the intake zone. The intake pipe is for introducing an air into the mixing zone. A centerline of the intake pipe is not intersected with a centerline of the second chamber, so as to induce a vortex flow field of the air flowing into the mixing zone for mixing the air and the second fuel gas.Type: GrantFiled: December 21, 2018Date of Patent: January 26, 2021Assignee: National Chung-Shan Institute of Science and TechnologyInventors: Yung-Mao Tsuei, Chih-Chuan Lee, Chi-Fang Chiu
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Patent number: 10890142Abstract: A device for controlling the amount of fluid fed to the intake of a supercharged internal-combustion engine includes at least one turbocharger with a compression stage including at least one compressor with an intake for the fluid to be compressed, an expansion stage with at least one turbine having at least one exhaust gas inlet and expanded exhaust gas outlet, a transfer line for carrying the compressed fluid from the compressor outlet to the at least one turbine inlet with throttling means for controlling the compressed fluid transfer to the turbine, and an exhaust gas recirculation line between exhaust gas outlet of turbine and intake of compressor.Type: GrantFiled: February 22, 2018Date of Patent: January 12, 2021Assignee: IFP Energies nouvellesInventor: Bruno Walter
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Patent number: 10830148Abstract: A gas turbine engine includes a main compressor. A tap is fluidly connected downstream of the main compressor. A heat exchanger is fluidly connected downstream of the tap. An auxiliary compressor unit is fluidly connected downstream of the heat exchanger. The auxiliary compressor unit is configured to compress air cooled by the heat exchanger with an overall auxiliary compressor unit pressure ratio between 1.1 and 6.0. An intercooling system for a gas turbine engine is also disclosed.Type: GrantFiled: May 14, 2018Date of Patent: November 10, 2020Assignee: Raytheon Technologies CorporationInventors: Gabriel L. Suciu, Jesse M. Chandler, Joseph Brent Staubach, Brian D. Merry, Wesley K. Lord
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Patent number: 10619559Abstract: The present invention controls the amount of air fed to the intake of a supercharged internal-combustion engine. The engine includes two exhaust gas outlets (32, 36) each connected to an exhaust manifold (30, 34) of a group of at least one cylinder (121, 122, 123, 124), a turbocharger with a dual-inlet (46, 48) turbine (40) connected to the exhaust gas outlets, and to an outside air compressor (44), and a duct (64) for partial transfer of the compressed air from the compressor to the turbine inlets. Two branches (70, 72) of the partial transfer duct, are connected to the turbine inlets. Each branch carries proportional throttle (74, 76), and the compressed air circulation in the branches is controlled during transient operation phases according to strategies applied to the proportioned throttle valves and determined in accordance with the stabilized phase characteristics.Type: GrantFiled: April 12, 2016Date of Patent: April 14, 2020Assignee: IFP ENERGIES NOUVELLESInventors: Olivier Baudrand, Thierry Colliou, Jean-Marc Zaccardi
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Patent number: 10570811Abstract: The present invention relates to a device for controlling the amount of air fed to the intake of a supercharged internal-combustion engine, said engine comprising two exhaust gas outlets (32, 36) connected each to an exhaust manifold (30, 34) of a group of at least one cylinder (121, 122, 123, 124), said device comprising a supercharging device (38) including a turbocharger with a dual-inlet (50, 52) turbine (40) connected to said exhaust gas outlets, as well as an outside air compressor (44), and at least one duct for partial transfer of the compressed air from the compressor to the two turbine inlets. According to the invention, the partial transfer duct opens into the cylinder head at the exhaust valves and it comprises throttling means (74, 76) controlling the compressed air circulation in this duct.Type: GrantFiled: May 12, 2016Date of Patent: February 25, 2020Assignee: IFP ENERGIES NOUVELLESInventors: Thierry Colliou, Bruno Walter
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Patent number: 10487757Abstract: Methods and systems for operating an engine that includes four compressors for two cylinder banks are described. In one example, output of two compressors and positions of valves are adjusted responsive to an engine air flow amount to prevent air from back flowing through a compressor. Output from the two compressors may be combined for higher engine air flow amounts.Type: GrantFiled: October 23, 2017Date of Patent: November 26, 2019Assignee: Ford Global Technologies, LLCInventors: Tyler Kelly, Timothy Stolzenfeld
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Patent number: 10458316Abstract: The present invention is a device for controlling an amount of air fed into the intake of a supercharged internal combustion engine with the engine comprising two exhaust gas outlets (32 and 36) each linked to an exhaust manifold (30 and 34) in at least one cylinder (121, 122, 123, 124). A supercharging device (38) comprising a turbo-compressor with a double-intake (50 and 52) turbine (40) is connected to the exhaust gas outlets and to an outside air compressor (44) and to a partial transfer duct of the compressed air from the compressor towards the intakes of the turbine. The partial transfer duct comprises two branches (70 and 72) which are connected to intakes of the turbine each having a shut-off (74 and 76) which controls circulation of compressed air in the branches.Type: GrantFiled: April 12, 2016Date of Patent: October 29, 2019Assignee: IFP Energies nouvellesInventors: Thierry Colliou, Bruno Walter
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Patent number: 10344684Abstract: An engine includes a variable compression-ratio mechanism adapted to change a compression ratio of an engine and a supercharger adapted to supply a compressed air to the engine. An engine control device that controls the engine controls the variable compression-ratio mechanism by setting target compression ratio such that the higher responsiveness of a supercharging pressure rise by the supercharger is, the lower the target compression ratio is.Type: GrantFiled: August 20, 2015Date of Patent: July 9, 2019Assignee: NISSAN MOTOR CO., LTD.Inventor: Tsuyoshi Matsuda
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Patent number: 10273848Abstract: A reductant delivery system for an engine system. The engine system includes an engine having an exhaust conduit and a turbocharger with a compressor. The reductant delivery system having an injector, a storage system, a sensor and a controller. The injector is configured to inject a reductant into the exhaust conduit. The storage system stores the reductant and is configured to receive pressurized air from the compressor. The sensor is configured to determine a pressure of the pressurized air in the storage system. The controller is in communication with the sensor and is configured to increase a power output of the engine in response to the pressure being below a desired pressure.Type: GrantFiled: September 14, 2016Date of Patent: April 30, 2019Assignee: Caterpillar Inc.Inventors: Keith Daniel Hogan, Marilyn E. Worley
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Patent number: 10196957Abstract: A mixing device of an exhaust gas purification system of an internal combustion engine is disclosed. The mixing device includes swirl tube, a mixing tube arranged in the swirl tube, and an exhaust gas supply tube leading into the swirl tube such that exhaust gas can enter the swirl tube tangentially from the exhaust gas supply tube through a cut-out opening in the lateral surface of the swirl tube and forms a flow rotating around the mixing tube. The exhaust gas completely enters the mixing tube and leaves the interior of the swirl tube completely through the mixing tube. A metering device can spray urea solution into the swirl tube such that the urea solution enters the mixing tube and is entrained by the rotating flow of the exhaust gas and is discharged from the swirl tube through the mixing tube together with the exhaust gas.Type: GrantFiled: March 26, 2015Date of Patent: February 5, 2019Assignee: Daimler AGInventor: Andreas Petry
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Patent number: 10056223Abstract: A plasma processing apparatus includes a lower electrode 12 on which a wafer W is provided. A second coolant path 70b is formed in a spiral shape in a region within the lower electrode 12 corresponding to where the wafer W is placed. Further, a first coolant path 70a is formed in a spiral shape to be located in a lower region within the lower electrode 12 corresponding to where the second coolant path 70b is formed. A pipeline 72 connected to a chiller unit 71 is branched into a first pipeline 72a connected to the first coolant path 70a and a second pipeline 72b connected to the second coolant path 70b. A check valve 90 allowing a coolant to flow in one direction is provided on the first pipeline 72a, and a reversing unit 92 reversing a flow direction of the coolant is provided on the pipeline 72.Type: GrantFiled: July 1, 2013Date of Patent: August 21, 2018Assignee: TOKYO ELECTRON LIMITEDInventor: Nobuyuki Nagayama
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Patent number: 9970296Abstract: A fluid motor is disclosed employed in a turbocharger to spin-up the turbocharger turbine independently of the existing exhaust gas pressure on the exhaust turbine wheel. A fluid turbine wheel is fixedly attached to the rotary mounted shaft of the turbocharger. Fixedly mounted nozzles directed at the fluid turbine wheel present fluid from a controlled source of pressurized fluid. A fixedly mounted collector receiving exhausted fluid from the fluid turbine wheel. The fluid is recycled from the collector to the controlled source of pressurized fluid and then back to the fixedly mounted. The fluid turbine wheel exhausts the fluid with residual energy to the collector. The controlled source of pressurized fluid includes a gear pump with an accumulator and a solenoid valve.Type: GrantFiled: June 23, 2017Date of Patent: May 15, 2018Inventor: James L. Richards
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Patent number: 9885298Abstract: An electronic control unit includes a seat temperature calculating unit, a supply amount control unit, and a concentration acquiring unit. The seat temperature calculating unit calculates a simulated temperature of an exhaust valve seat. When the simulated temperature of the exhaust valve seat becomes equal to or higher than a threshold temperature, the supply amount control unit starts fuel increase control of increasing a lower limit value of an amount of fuel to be supplied into a cylinder to a larger value than that before the simulated temperature becomes equal to or higher than the threshold temperature. The concentration acquiring unit acquires an ethanol concentration of the fuel. In the fuel increase control, the supply amount control unit makes the amount of increase in the lower limit value larger as the ethanol concentration of the fuel acquired by the concentration acquiring unit is higher.Type: GrantFiled: October 10, 2016Date of Patent: February 6, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takuya Takei
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Patent number: 9856803Abstract: A natural gas engine system may have an engine having at least one cylinder. The engine may also have an intake manifold configured to deliver air for combustion to the cylinder and an exhaust manifold configured to discharge exhaust from the cylinder. The natural gas engine system may have a generator coupled to the engine. The generator may be configured to generate electrical power for an electrical load. The natural gas engine system may have a fuel source configured to supply natural gas for combustion in the engine, and an air tank in fluid communication with the intake manifold and the exhaust manifold. Further, the natural gas engine system may have a controller. The controller may be configured to direct a first amount of air from the air tank to the exhaust manifold and a second amount of air from the air tank to the intake manifold.Type: GrantFiled: September 11, 2015Date of Patent: January 2, 2018Assignee: Caterpillar Inc.Inventors: Jeff Howard, Timothy B. James, Todd A. Rezac, Brett A. Zook, David J. Lin, Gary Boyer, Robert Maxson
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Patent number: 9803527Abstract: A method for cold start pre-warming of a pressure-charged internal combustion engine and/or of an exhaust gas aftertreatment device of a internal combustion engine, includes arranging a cold-starting aid in the intake duct for warming the charge air while the engine is stationary. The internal combustion engine has at least one working cylinder with at least one inlet valve and at least one outlet valve and further includes a device for setting a valve position. The internal combustion engine can be pressure-charged by a pressure-charging device operable by an electric motor. In the method, after detection of a cold start of the internal combustion engine: the cold-starting aid is activated while the engine is stationary; electric-motor operation of the pressure-charging device is activated; and a valve overlap between at least one inlet valve and at least one outlet valve is set.Type: GrantFiled: November 24, 2015Date of Patent: October 31, 2017Assignee: MAN TRUCK & BUS AGInventors: Andreas Pappenheimer, Andreas Sommermann
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Patent number: 9695786Abstract: An engine system includes an internal combustion engine having an intake duct and an exhaust duct; a flow control module fluidly coupled to the intake duct; a compressor in fluid communication with the intake duct via the flow control module; a heat exchanger having an exhaust flow path in fluid communication with the exhaust duct, and having an oxidizer flow path, an outlet of the compressor being in selective fluid communication with the intake duct via the flow control module and the oxidizer flow path of the heat exchanger; a first temperature sensor in fluid communication with the intake duct; and a controller operatively coupled to the flow control module and the first temperature sensor, the controller being configured to actuate the flow control module between a first configuration and a second configuration based at least in part on a signal from the first temperature sensor.Type: GrantFiled: January 13, 2015Date of Patent: July 4, 2017Assignee: Caterpillar Inc.Inventors: Xinyu Ge, Fei Wang, Joshua Thurman
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Patent number: 9587596Abstract: Systems and methods for a twin turbocharged engine with a single exhaust gas recirculation (EGR) system are disclosed. In one example approach a system is provided comprising a first turbocharger in a first intake passage with a low-pressure EGR system fluidically coupling exhaust exiting the first turbocharger to intake air entering the first turbocharger, and a second turbocharger in a second intake passage without a low-pressure EGR system fluidically coupling exhaust exiting the second turbocharger to intake air entering the second turbocharger.Type: GrantFiled: February 13, 2012Date of Patent: March 7, 2017Assignee: Ford Global Technologies, LLCInventors: Daniel Joseph Styles, James Hilditch, Michael Howard Shelby
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Patent number: 9581087Abstract: Techniques for a chamber, such as gas turbine engine (100), surrounding a heated fluid include a sensor (150) mounted in a first wall (228b, 229b) of the chamber to detect phenomenon inside the chamber and a processor (702). The processor is in electrical communication with the sensor and is configured to receive first data, determine a first temperature of the first wall, determine a current path length, determine properties of the fluid flow, and operate a device based on the properties. First data indicates a value of the phenomenon along a path between the first wall and a different wall of the chamber. The current path length (268b) is based on a nominal path length (268a) and thermal expansion of the first wall due to the first temperature. The property of fluid flow in the chamber is based on the first data and the current path length.Type: GrantFiled: September 17, 2015Date of Patent: February 28, 2017Assignee: Siemens Energy, Inc.Inventors: Upul P. DeSilva, Heiko Claussen
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Patent number: 9435252Abstract: Intake system for a supercharged internal combustion engine, comprising an intake duct with a cooling line comprising a high temperature cooler and a lower temperature cooler arranged in series along the intake duct, and a by-pass branch arranged in parallel with the low temperature cooler, and a heating line with a heater. The heating line is arranged in parallel with the cooling line. The intake system is configured so that it may be modulated between a heating mode, where the gaseous intake fluid is heated through the heater, and a cooling mode, where the gaseous intake fluid is cooled through at least one of the high temperature cooler and the low temperature cooler.Type: GrantFiled: July 3, 2014Date of Patent: September 6, 2016Assignee: Denso Thermal Systems S.P.A.Inventors: Cristiano Massano, Matteo Biglia, Gabriele Maione
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Patent number: 9322322Abstract: A turbocharger system for a vehicle may include a turbocharger, a tank for compressed gas and an exhaust manifold conduit in fluid communication with an inlet of the turbocharger. The tank is in fluid communication with the manifold conduit and is arranged to push compressed gas into the manifold conduit during a predetermined pulse duration time period for initial compressor spin up in the turbocharger.Type: GrantFiled: December 23, 2013Date of Patent: April 26, 2016Assignee: VOLVO CAR CORPORATIONInventors: Goran Almkvist, Jonas J Bjorkholtz
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Patent number: 9322362Abstract: A supercharging system for an engine includes: a cylinder block forming a combustion chamber; an intake manifold connected to the cylinder block to supply ambient air thereto; an exhaust manifold collecting exhaust gas discharged from the combustion chamber and guiding the same to the environment; a third supercharge path connecting an inlet of the intake manifold to the exhaust manifold; and an electric supercharger supplying compressed air to the exhaust manifold through the third supercharge path. Responsiveness of an engine is enhanced and stabilization of the engine is promoted.Type: GrantFiled: November 6, 2013Date of Patent: April 26, 2016Assignee: Hyundai Motor CompanyInventors: Hyun Jun Lim, Dong Hee Han, Yoon Joo Kim, Jaeyoung Jeun, Seung Kook Han, Jong Il Park
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Patent number: 9316180Abstract: In an exhaust gas turbocharger system for charging an engine including a compressor arrangement at a charging fluid side LL and a turbine arrangement at an exhaust gas side AG, a further compressor which is driven by a separate controllable drive and whose primary side is connected to the charging fluid side LL while its secondary side is connected to the exhaust gas side is provided for compressing charge air taken from the charging fluid side and supply it to the exhaust gas side for assisting driving the exhaust gas turbines so as to maintain them at relatively high speeds in transition periods including engine idling.Type: GrantFiled: April 27, 2013Date of Patent: April 19, 2016Assignee: MTU FRIEDRICHSHAFEN GMBHInventor: Joerg Heiermann
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Patent number: 9308909Abstract: Methods and systems are provided for improving engine restarts in a hybrid vehicle. In response to a wide-open pedal tip-in, maximum torque is rapidly provided by cranking an engine while advancing intake cams and while discharging compressed air from an accumulator into the engine intake. Motor torque can be transitioned out faster since maximum engine torque output is enabled earlier.Type: GrantFiled: June 6, 2013Date of Patent: April 12, 2016Assignee: Ford Global Technologies, LLCInventor: Douglas Raymond Martin
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Patent number: 9279396Abstract: Methods and systems are provided for reducing turbo lag in a boosted engine. A boost reservoir coupled to the engine may be charged with compressed intake air and/or combusted exhaust gas. The pressurized charge may then be discharged during a tip-in to either the intake or the exhaust manifold.Type: GrantFiled: May 17, 2012Date of Patent: March 8, 2016Assignee: Ford Global Technologies, LLCInventors: John Eric Rollinger, Adam J. Richards, David Bell, Robert Andrew Wade
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Patent number: 9273580Abstract: The invention relates to a reducing agent metering system, and to a method for controlling the injection of a reducing agent into the exhaust gas flow (9) of a turbocharged internal combustion engine for selective catalytic reduction, wherein the metering system can be connected to a reducing agent tank (1), from which reducing agent can be removed, wherein the metering system comprises at least one nozzle (5) through which the reducing agent can be injected by means of compressed air into the exhaust gas flow (9), wherein at least one part of the compressed air is taken from a charger of the internal combustion engine, wherein the compressed air supply (6) comprises an electric air pump (7) for generating compressed air, and comprises a bypass (19) in parallel with the air pump (7), so that the charge air of the turbocharger flows over or can flow over the air pump (7).Type: GrantFiled: February 24, 2010Date of Patent: March 1, 2016Assignee: Albonair GmbHInventor: Georg Hüthwohl
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Patent number: 9212590Abstract: An internal combustion engine has at least one combustion chamber and an exhaust gas system arranged on an exhaust gas outlet port. The exhaust gas system includes at least one secondary air injection device for injecting secondary air into the exhaust system between the combustion chamber and an exhaust emission control system arranged in the exhaust gas system. During operation of the internal combustion engine, a residual gas content in the combustion chamber can be changed. The secondary air injection site on the exhaust gas system is arranged so far from the combustion chamber that injected secondary air flows back into the exhaust gas outlet port due to back-flowing exhaust gas in the exhaust gas system but does not flow back into the combustion chamber. This makes it possible to comply with SULEV emission limits even for engines having many combustion chambers and/or exhaust gas turbochargers.Type: GrantFiled: March 6, 2012Date of Patent: December 15, 2015Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Manfred Miklautschitsch, Samuel Bucher, Stefan Babernits, Julian Becker
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Patent number: 9181856Abstract: One exemplary embodiment may include an engine breathing system including an exhaust driven auxiliary air pump to flow air directly into the exhaust side of the breathing system.Type: GrantFiled: May 14, 2009Date of Patent: November 10, 2015Assignee: BorgWarner Inc.Inventors: Thomas A. Grissom, Volker Joergl
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Patent number: 9145852Abstract: A power system including an engine, an intake system, an exhaust system, and an EGR system. The intake system is coupled to the engine and receives a fresh intake gas, the fresh intake gas having a fresh intake gas pressure. The exhaust system is coupled to the engine and expels an exhaust gas, the exhaust gas having an exhaust gas pressure. The EGR system is positioned so as to couple the intake system and the exhaust system. The EGR system does not comprise an EGR cooler. The EGR system bypasses periodically a portion of the fresh intake gas around the engine, from the intake system to the exhaust system, when the fresh intake gas pressure is greater than the exhaust gas pressure.Type: GrantFiled: January 3, 2014Date of Patent: September 29, 2015Assignee: DEERE & COMPANYInventors: Richard E Winsor, Brian H Bratvold, Yirot Pino
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Patent number: 9115639Abstract: Embodiments for an internal combustion engine having at least one cylinder, at least one exhaust line for discharging combustion gases via an exhaust-gas discharge system, and at least one intake line for supplying charge air via an intake system are provided. In one example, an internal combustion engine comprises an exhaust-gas recirculation arrangement which comprises a recirculation line which branches off from the exhaust-gas discharge system and which opens into the intake system, an exhaust-gas turbocharger comprising a compressor arranged in the intake system and a turbine arranged in the exhaust-gas discharge system, a throttle element which is arranged in the intake line downstream of the compressor, a bypass line which branches off from the intake line upstream of the throttle element and which opens into the intake line again downstream of the throttle element, and an expansion machine for gaining additional energy arranged in the bypass line.Type: GrantFiled: October 4, 2012Date of Patent: August 25, 2015Assignee: Ford Global Technologies, LLCInventors: Simon Petrovic, Mark Eifert
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Patent number: 9027344Abstract: Rotational speed of an electric turbocharger controlled so that the actual temperature of the motor does exceed the allowable level even over a long time span. A speed control device for the turbocharger, includes a temperature sensor, a speed limitation device which limits the speed of the motor in response to the temperature level detected by the temperature sensor wherein the speed limitation device is provided with a limit control start temperature correction device which decreases the limit control start temperature when the increase rate of the detected temperature exceeds a threshold. A speed limitation setting device sets a speed limit based on the temperature difference between the limit control start temperature and the detected temperature T on a rate of increase of the detected temperature.Type: GrantFiled: June 11, 2010Date of Patent: May 12, 2015Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yukio Yamashita, Noriyuki Hayashi
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Patent number: 8966896Abstract: According to one embodiment of the invention, an internal combustion engine includes a first exhaust port in a cylinder head of the internal combustion engine, a first one way valve coupled to a secondary air system, the first one way valve configured to restrict fluid communication from the first exhaust port to the secondary air system. The engine also includes a second exhaust port in the cylinder head and a second one way valve coupled to the secondary air system, the second one way valve configured to restrict fluid communication from the second exhaust port to the secondary air system, wherein the first and second exhaust ports are in fluid communication with a turbocharger.Type: GrantFiled: July 19, 2011Date of Patent: March 3, 2015Assignee: GM Global Technology Operations LLCInventors: Robert Lionel Jacques, Kenneth R. Kridner
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Patent number: 8935077Abstract: A procedure for startup and shutdown of an internal combustion engine with an electronically-controlled turbocharger (ECT) is disclosed. The startup and shutdown procedures are determined to provide the desired lubrication to engine and ECT components and sufficient cooling of the engine and ECT. In one embodiment, the system includes an electric oil pump that can supply oil to the oil circuit in the engine and ECT independently of an engine-driven mechanical oil pump. In another embodiment, the oil circuit is provided with an oil accumulator to provide oil for cooling after engine rotation has stopped.Type: GrantFiled: January 6, 2012Date of Patent: January 13, 2015Assignee: EcoMotors, Inc.Inventor: Tyler Garrard
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Patent number: 8925317Abstract: An exemplary turbocharger system for an internal combustion engine is provided. The turbocharger system includes a first turbine and a second turbine. The first turbine is in fluid communication with the internal combustion engine. The first turbine receives a first portion exhaust gas discharged from the internal combustion engine and provides a first turbine exhaust gas. The second turbine is in fluid communication with the first turbine via an inter-stage channel. The inter-stage channel transports the first turbine exhaust gas from the first turbine to the second turbine. The inter-stage channel is in thermal connection with an exhaust gas recirculation channel defined between an inlet and an outlet of the internal combustion engine. The first turbine exhaust gas flowing through the inter-stage channel is capable of being heated by a second portion exhaust gas discharged from the internal combustion engine and flowing through the exhaust gas recirculation channel.Type: GrantFiled: July 16, 2012Date of Patent: January 6, 2015Assignee: General Electric CompanyInventors: Rodrigo Rodriguez Erdmenger, Cathal Clancy, Daniel Edward Loringer, Jassin Marcel Fritz, Neil Xavier Blythe, Lukas William Johnson, Sebastian Walter Freund, Pierre Sébastien Huck, Jonathan Edward Nagurney, Yu Du, Matthias Lang, Rudolf Konrad Selmeier, Elisa Jubany Arribas
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Patent number: 8899040Abstract: A power system includes a natural gas engine, a first turbine receiving an exhaust from the engine, and a second turbine having an inlet fluidly connected to an outlet of the first turbine. The power system also includes a compressor driven by the first turbine. The compressor has an outlet fluidly connected to the engine. The power system further includes a bypass system directing a fluid from the outlet of the compressor to the inlet of the second turbine.Type: GrantFiled: September 29, 2011Date of Patent: December 2, 2014Assignee: Caterpillar Inc.Inventors: Shriram Vijayaraghavan, Scott Byron Fiveland, Martin Leo Willi
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Patent number: 8793995Abstract: A system and method for recovering the unused energy of exhaust gas of an internal combustion engine is provided. A charge device for generating compressed intake air for the internal combustion engine is driven by exhaust gas, and an air compressor having at least one compression stage is connected to the charge device to withdraw at least a partial quantity of the compressed intake air, the partial quantity of the compressed intake air of the charge device that can be withdrawn by the air compressor is adjustable.Type: GrantFiled: January 12, 2010Date of Patent: August 5, 2014Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventor: Eduard Gerum
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Publication number: 20140182286Abstract: A turbocharger system for a vehicle may include a turbocharger, a tank for compressed gas and an exhaust manifold conduit in fluid communication with an inlet of the turbocharger. The tank is in fluid communication with the manifold conduit and is arranged to push compressed gas into the manifold conduit during a predetermined pulse duration time period for initial compressor spin up in the turbocharger.Type: ApplicationFiled: December 23, 2013Publication date: July 3, 2014Applicant: VOLVO CAR CORPORATIONInventors: Goran ALMKVIST, Jonas J. BJORKHOLTZ
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Patent number: 8677751Abstract: Disclosed is a super-turbocharger system that increases power and efficiency of an engine. The system uses the exothermic properties of a catalytic converter to extract additional energy from exhaust heat that is used to add power to the engine. Compressed air is supplied and mixed with exhaust gases upstream and/or downstream from a catalytic converter that is connected to an exhaust manifold. The gaseous mixture of exhaust gases and compressed air is sufficiently rich in oxygen to oxidize hydrocarbons and carbon monoxide in the catalytic converter, which adds heat to the gaseous mixture. In addition, a sufficient amount of compressed air is supplied to the exhaust gases to maintain the temperature of the gaseous mixture at a substantially optimal temperature level. The gaseous mixture is applied to the turbine of the super-turbocharger, which increases the output of said super-turbocharger, which increases the power and efficiency of said engine.Type: GrantFiled: May 16, 2011Date of Patent: March 25, 2014Assignee: VanDyne SuperTurbo, Inc.Inventors: Ed VanDyne, Jared William Brown
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Patent number: 8627662Abstract: A system for recovering heat from recirculating exhaust gases is provided. The system includes a first exhaust manifold in fluid communication with multiple combustion chambers of an engine. The system also includes a turbocharger having a turbine stage and a compressor stage, wherein the turbine stage comprises an inlet port in fluid communication with the first exhaust manifold and the compressor stage includes an inlet port for air intake and an outlet port for compressed air. The system includes an exhaust gas recirculation cooler having a first flow path and a second flow path, wherein the first flow path is configured to receive a portion of exhaust gas from the first exhaust manifold flowing through an exhaust gas recirculation loop. The second flow path includes an inlet for receiving a compressed air for drawing heat from the exhaust gas flowing through the first flow path.Type: GrantFiled: October 19, 2011Date of Patent: January 14, 2014Assignee: General Electric CompanyInventors: Sebastian Walter Freund, Jassin Marcel Fritz
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Patent number: 8511068Abstract: A technique is provided which is capable of reducing an amount of smoke generated in a temperature raising system in which fuel added to an exhaust gas flowing through an exhaust passage is caused to combust at the time of requesting a temperature rise in an exhaust gas purification catalyst. When a request for raising the temperature of an exhaust gas purification catalyst is made, bypass control is carried out in which the exhaust gas having bypassed a turbine is caused to flow into the exhaust gas purification catalyst through a bypass passage, and fuel ignition control is carried out in which a fuel addition valve is caused to add fuel to the exhaust gas which has flowed out of the turbine, and a glow plug is caused to ignite the added fuel.Type: GrantFiled: April 2, 2009Date of Patent: August 20, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kenichi Tsujimoto, Mikio Inoue
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Patent number: 8468822Abstract: A process and electromechanical system for conditioning the incoming air or air/fuel charge for an internal combustion engine to result in an optimally prepared charge in terms of temperature of the charge and fuel dispersion in the charge. The process includes compressing intake air, bifurcating the compressed intake air stream to provide for heating one branch of the stream while not further purposely heating the other. The process further includes controlling the proportion between the bifurcated stream portions to provide for a desired set point temperature of the combined stream. The process includes selection of the set point temperature such that the temperature of the air is in the vicinity of the fuel self ignition temperature at the end of the compression stroke. Primary components include one or more of an air compressor, heat exchanger, bypass duct, proportioning valve, airflow director, and attendant control system including sensors, processor, and actuator(s).Type: GrantFiled: March 24, 2011Date of Patent: June 25, 2013Inventor: Rix E. Evans
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Patent number: 8423266Abstract: An engine in which a fluctuation in the amount of fuel injection is reduced in the entire operating tolerance of the engine. The engine (1) has an engine body (5) provided with a turbocharger (7), an engine speed sensor (21), a turbo sensor (22), a boost sensor (23), and an ECU (20) for correcting the amount of fuel injection. A control means recognizes an engine speed, a supercharging pressure, a supercharger speed, a fuel injection amount and corrects the fuel injection amount.Type: GrantFiled: March 2, 2009Date of Patent: April 16, 2013Assignee: Yanmar Co., Ltd.Inventors: Takao Kawabe, Takashi Miyamoto, Kazuhiro Yamada, Tetsuo Sakaki, Isamu Kawashima
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Patent number: 8387382Abstract: A booster mechanism is selectively connected to an exhaust turbine which consequently powers an intake air compressor. The booster mechanism applies additional power to the exhaust turbine in order to give the engine full or near full torque above idle revolutions per minute (RPM). In one embodiment, the booster mechanism comprises an air flask which contains pressurized air or another pressurized air source that can be utilized to provide a pressure source for additional power to the exhaust turbine.Type: GrantFiled: May 26, 2010Date of Patent: March 5, 2013Assignee: The United States of America as represented by the Secretary of the NavyInventor: Paul M. Dunn