[특허]System for controlling recirculated exhaust gas temperature in an internal combustion engine

System for controlling recirculated exhaust gas temperature in an internal combustion engine 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02M-025/07
출원번호	US-0763397 (1996-12-11)
발명자 / 주소	Charlton Steve J. Roettgen Leslie A.
출원인 / 주소	Cummins Engine Company, Inc.
대리인 / 주소	Woodard, Emhardt, Naughton, Moriarty & McNett
인용정보	피인용 횟수 : 64 인용 특허 : 0

초록 ▼

A system for controlling the temperature of recirculated exhaust gas supplied to an internal combustion engine is provided. In one embodiment, the system includes a heat exchanger having the recirculated exhaust gas flowing therethrough and further having coolant fluid flowing therethrough. A control valve is disposed within the flow path of the coolant fluid, and the valve position is modulated to vary the rate of coolant fluid flow through the heat exchanger, thereby controlling the temperature of the recirculated exhaust gas supplied by the heat exchanger. In another embodiment, the heat exchanger defines a number of exhaust gas flow passages therethrough and a number of gas flow control valves are disposed between the exhaust gas inlet of the heat exchanger and the number of exhaust gas flow passages. The exhaust gas flow control valves are selectively actuated to disable exhaust gas flow through any number of subsets of the exhaust gas flow passages, thereby controlling the temperature of recirculated exhaust gas supplied by the heat exchanger.

대표청구항 ▼

[ What is claimed is:] [1.] Apparatus for controlling the temperature of recirculated exhaust gas in an internal combustion engine, comprising:a first conduit coupled at one end to an exhaust gas port of the engine;a second conduit coupled at one end to an air inlet port of the engine;a source of coolant fluid;a heat exchanger including a housing defining a gas inlet port, a gas outlet port, a coolant inlet port and a coolant outlet port, said gas inlet port connected to an opposite end of said first conduit and receiving exhaust gas therefrom, said gas outlet port connected to an opposite end of said second conduit and supplying recirculated exhaust gas thereto, said coolant inlet port connected to said source of coolant fluid, said heat exchanger defining a coolant flow path therethrough from said source of coolant fluid to said coolant outlet port;a coolant control valve disposed within said coolant flow path and operable to control a rate of coolant flow therethrough;a temperature sensor operable to sense heat exchanger housing temperature and produce a temperature signal corresponding thereto; andan electronic control system responsive to said temperature signal to provide a coolant valve control signal corresponding thereto, said coolant control valve responsive to said coolant valve control signal to control said rate of coolant flow through said coolant flow path and thereby control said recirculated exhaust gas temperature.

이 특허를 인용한 특허 (64)

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Rimnac, Phillip F.; Ramamurthy, Ravishankar; Bhargava, Sameer, Condensation control for internal combustion engines using EGR.
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Kitayama, Takeshi, Control device for coolant flow in an internal combustion engine.
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Kitamura, Toru; Kaneko, Yoshimasa; Yamaki, Toshihiro, Control system for compression ignition internal combustion engine.
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Klipfel, Bernhard; Hordt, Ralf, Cooler of an exhaust gas recirculation system and exhaust gas recirculation system including one such cooler.
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Agee,Keith; Beldam,Richard P.; Klein,William L., Cooling system with boiling prevention.
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Ieda, Jo?o Jos? Cardinali, Deflector by-pass valve for gas from the engine.
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Banzhaf Matthias,DEX ; Bauer Martin,DEX ; Sari Osman,DEX ; Dietz Gerard,DEX ; Blank Helmut,DEX, Device for exhaust recycling for an internal combustion engine and method of making same.
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Lombardo, Paul S.; Spohn, Brian L., EGHR mechanism diagnostics.
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Wang Yue Yun ; Majors Steven W., EGR fault diagnostic system.
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Craig Savonen ; Phillip F. Rimnac ; Richard M. Avery, Jr., Electronic controlled engine exhaust treatment system to reduce NOx emissions.
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Lucas, Michael; Schneider, Matthew; Oldham, Louis P.; Dringenburg, Dean, Engine exhaust gas recirculation particle trap.
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Recouvreur, Philippe; Tigrine, Olivier, Estimation of exhaust gas temperature at the output of the EGR circuit of a combustion engine.
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Atkinson, George, Exhaust gas cooler.
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Tischer, Marcel, Exhaust gas cooler for an exhaust gas recirculation system, and an exhaust gas recirculation system with such an exhaust gas cooler.
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Leedham, Stewart William; Stonehouse, Matthew Thomas Graham, Exhaust gas cooler with bypass tube and exhaust gas recirculation valve.
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Miyoshi, Sotsuo; Okada, Hidetoshi, Exhaust gas recirculating device.
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Rumpsa, Todd Anthony; Surnilla, Gopichandra, Exhaust gas recirculation (EGR) system.
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Hatano,Kenta, Exhaust gas recirculation apparatus.
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Raymond Challis GB, Exhaust gas recirculation cooler.
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Cecil, Adam C.; Bare, Kristopher R., Exhaust gas recirculation cooler coolant plumbing configuration.
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Kojima, Yuji; Sunada, Tomohiro; Ishimoto, Daijiro, Exhaust gas recirculation device of engine.
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Dea, Kevin; Durand, James; Jacobson, Evan, Exhaust gas recirculation system.
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Dea,Kevin; Durand,James; Jacobson,Evan, Exhaust gas recirculation system.
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Feucht Dennis D. ; Lawrence Keith E., Exhaust gas recirculation system in an internal combustion engine and method of using same.
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Romzek, Martin A.; Marcis, Richard, Exhaust gas recirculation transient smoke control.
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Bailey, Brett M., Exhaust gas regenerator/particulate trap for an internal combustion engine.
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Cullen Michael John ; Jentz Robert Roy ; Kindree James Matthew ; Nader David Robert, Exhaust gas temperature estimation.
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Craig,Ian Anthony; Challis,Raymond William; Penny,Charles James; Downs,Paul; Hacker,Mark Robert, Gas heat exchanger.
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Raduenz, Dan R.; Braun, Jason J.; Meshenky, Steve P.; Grotophorst, Thomas R.; Hornback, Daniel E., Heat exchanger and method of manufacturing the same.
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Schuricht, Scott R.; Deluca, Anthony L., Heat exchanger for exhaust gas recirculation.
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Wall John C. ; Flik Markus,DEX ; Lange Hans, High-temperature coolant loop for cooled exhaust gas recirculation for internal combustion engines.
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Yang, Il Suk, Integrated EGR cooler.
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Bechle Sven,DEX ; Gartner Uwe,DEX, Internal combustion engine with exhaust gas recirculation particularly for motor vehicles.
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Pietro Bianchi IT, Internal-combustion engine provided with an exhaust gas recirculation system, in particular for a vehicle.
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Redon,Fabien Georges; Keyes,Jared Jobey; Balnaves,Michael A., Manifold assembly for an internal combustion engine.
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Redon,Fabien Georges; Keyes,Jared Jobey; Balnaves,Michael A., Manifold body for an internal combustion engine.
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Balestrino, Sandro R.; Warey, Alok; Szymkowicz, Patrick G.; Li, Xiaobin, Method and apparatus for monitoring performance of EGR heat exchanger.
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Allard, Julien; Petit, Clement; Le-Bras, Ronan, Method for diagnosing the exchanger bypass flap in an exhaust gas recirculation circuit.
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Hannewald, Thomas; Kern, Eckhart, Method for recirculating a partial exhaust gas flow to an internal combustion engine of a motor vehicle.
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Sun,Min, Method of smoke limiting engine.
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Zhang, Xiaogang, Methods and systems for controlling air flow paths in an engine.
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Akao Yoshiyuki,JPX ; Nakazawa Norio,JPX ; Ogita Hiroshi,JPX, Recirculating exhaust gas cooling device.
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Li, Xiaoqiu; Wang, Yue Yun, System for diagnosing operation of an EGR cooler.
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Dollmeyer, Thomas A.; Brackney, Larry J.; Brunemann, George A.; Charlton, Steve, System for producing charge flow and EGR fraction commands based on engine operating conditions.
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Chalgren,Robert D.; Lasecki,Michael P.; Martin,Michael W.; Hollis,Thomas J.; Bader,Mark S.; Allen,David J., Thermal management system for a vehicle.
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Streutker, Daniel; Luft, Aaron C., Valve stop for engine with exhaust gas recirculation.
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Kennedy,Lawrence C., Working fluid circuit for a turbocharged engine having exhaust gas recirculation.
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System for controlling recirculated exhaust gas temperature in an internal combustion engine 원문보기

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System for controlling recirculated exhaust gas temperature in an internal combustion engine 원문보기

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