Exhaust heat recovery for engine heating and exhaust cooling
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0793447
(2010-06-03)
|
등록번호 |
US-8091359
(2012-01-10)
|
발명자
/ 주소 |
- Ulrey, Joseph Norman
- Pursifull, Ross Dykstra
- Leone, Thomas G.
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출원인 / 주소 |
- Ford Global Technologies, LLC
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
7 인용 특허 :
8 |
초록
▼
Various systems and method for heating an engine in a vehicle are described. In one example, intake air flowing in a first direction may be heated via a gas-to-gas heat exchange with exhaust gases. The heated intake air may then be used in a subsequent gas-to-liquid heat exchange to heat a fluid cir
Various systems and method for heating an engine in a vehicle are described. In one example, intake air flowing in a first direction may be heated via a gas-to-gas heat exchange with exhaust gases. The heated intake air may then be used in a subsequent gas-to-liquid heat exchange to heat a fluid circulating through the engine. In another example, intake air flowing in a second direction may be heated via a heat exchange with exhaust gases in order to cool an exhaust catalyst.
대표청구항
▼
1. A heating method for a vehicle engine, comprising: heating intake air via a gas-to-gas heat exchanger in communication with exhaust gases;heating a fluid flowing through the engine with the intake air via a gas-to-liquid heat exchanger, the engine having a turbocharger and the gas-to-gas heat exc
1. A heating method for a vehicle engine, comprising: heating intake air via a gas-to-gas heat exchanger in communication with exhaust gases;heating a fluid flowing through the engine with the intake air via a gas-to-liquid heat exchanger, the engine having a turbocharger and the gas-to-gas heat exchanger positioned upstream of an exhaust catalyst; andcooling the exhaust catalyst when the turbocharger is in operation and boost is greater than a threshold value. 2. The method of claim 1, wherein the fluid is at least one of engine oil, engine coolant, or transmission oil. 3. The method of claim 1, wherein an amount of heated intake air is adjusted via an air bypass valve. 4. The method of claim 1, further comprising heating the intake air and the fluid during a cold engine start. 5. The method of claim 1, further comprising heating the intake air during warmed-up operation. 6. A method for a turbocharged engine in a vehicle, the engine having an exhaust catalyst, comprising: heating intake air via a gas-to-gas heat exchanger, the gas-to-gas heat exchanger in communication with exhaust gases and positioned upstream of an exhaust catalyst;passing the heated intake air through a gas-to-liquid heat exchanger to heat a fluid that flows through the engine and to reduce a temperature of the heated intake air;delivering the heated intake air to a cylinder of the engine via an air bypass valve; andcooling at least one of engine oil and the exhaust catalyst when the turbocharger is in operation and boost is greater than a threshold value. 7. The method of claim 6, wherein the fluid is at least one of engine oil, engine coolant, or transmission oil. 8. The method of claim 6, wherein the method is carried out under cold start conditions when the turbocharger is not in operation. 9. The method of claim 6, wherein an amount of heated intake air delivered to the engine is adjusted via the air bypass valve. 10. A heating system for an engine, comprising: a throttle in an intake passage of the engine;an air bypass valve;a turbocharger;an exhaust catalyst;a gas-to-gas heat exchanger in communication with exhaust gases and intake air;a gas-to-liquid heat exchanger in communication with intake air and a fluid circulating through the engine; anda control system comprising a non-transitory computer readable storage medium, the storage medium comprising instructions for: during a first operating condition, adjusting openings of the throttle and air bypass valve such that intake air flows in a first direction through the gas-to-gas heat exchanger and then the gas-to-liquid heat exchanger and heated air enters a cylinder of the engine;during a second operating condition, adjusting the openings of the throttle and air bypass valve such that intake air flows in a second direction through the air bypass valve, the second direction being the reverse of that during the first operating condition, and the exhaust catalyst is cooled; andduring a third operating condition, closing the air bypass valve. 11. The heating system of claim 10, wherein the first operating condition includes cold engine start while the turbocharger is not in operation. 12. The heating system of claim 10, wherein the exhaust catalyst is positioned upstream of the gas-to-gas heat exchanger, and the second operating condition includes boost greater than a threshold value when the turbocharger is in operation. 13. The heating system of claim 10, wherein the third operating condition includes fluid temperature greater than a threshold temperature. 14. The heating system of claim 10, wherein the third operating condition includes fluid temperature less than a threshold temperature when the engine is boosted. 15. The heating system of claim 10, wherein the third operating condition includes time since start. 16. The heating system of claim 10, further comprising instructions for adjusting air-fuel control based on an operating condition of the engine.
이 특허에 인용된 특허 (8)
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Kweon,Chol Bum; Khinkis,Mark J.; Nosach,Vilyam G.; Zabransky,Robert F., Advanced high efficiency, ultra-low emission, thermochemically recuperated reciprocating internal combustion engine.
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Raab, Gottfried; Kislinger, Peter; Klinger, Heidrun, Cooling system of an internal combustion engine having charge air feed.
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Bering,Christopher Adam; Winsor,Richard Edward, Exhaust gas recirculation system.
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Sheidler,Alan David; Burk,Ronnie Franklin, Exhaust gas recirculation system.
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Yang, Jialin, HCCI engine intake/exhaust systems for fast inlet temperature and pressure control with intake pressure boosting.
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Uwe Gartner DE, Internal combustion engine having a turbocharger having variable turbine geometry.
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Yang,Jialin, System and method for improved engine starting using heated intake air.
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Yamamoto, Kazuhiro; Komine, Masao; Sugimoto, Mitsuru; Miyao, Masakatsu, System for controlling the temperature of a cylinder wall in an engine.
이 특허를 인용한 특허 (7)
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Ge, Xinyu; Wang, Fei; Thurman, Joshua, Engine intake system and method for operating same.
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Ulrey, Joseph Norman; Pursifull, Ross Dykstra; Leone, Thomas G., Exhaust heat recovery for engine heating and exhaust cooling.
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Ulrey, Joseph Norman; Pursifull, Ross Dykstra; Leone, Thomas G., Exhaust heat recovery for engine heating and exhaust cooling.
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Pursifull, Ross Dykstra; Leone, Thomas G., Intake air heating and exhaust cooling.
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Wade, Robert Andrew; Naddaf, Fadi Maroun; Whitehead, Joseph P.; Devries, Jason Eugene, Method and system for reducing turbocharger noise during cold start.
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Cook, Michael D; Scott, Matthew R; Pelaez, Joaquin A; Bressau, Timothy, Thermal management system for a vehicle and method.
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Andersson, Per, Twin turbo assembly and method for operating a twin turbo assembly.
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