Integrated engine control and cooling system for diesel engines
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01P-001/06
F01P-001/00
출원번호
US-0366684
(2006-03-02)
발명자
/ 주소
Banga,Sandeep
Walter,Brian L.
Napierkowski,Susan Mary
Glenn,William D.
Lacy,Gerald Edward
Aggarwal,Mahesh
출원인 / 주소
General Electric Company
대리인 / 주소
Beusse Wolter Sanks Mora &
인용정보
피인용 횟수 :
33인용 특허 :
5
초록▼
A locomotive includes an engine (12), an intercooler (16), and an oil cooler (28), each having respective cooling passages formed therein. The locomotive also includes a cooling system (10) in selective communication with the respective cooling passages for selectively providing a first coolant (56)
A locomotive includes an engine (12), an intercooler (16), and an oil cooler (28), each having respective cooling passages formed therein. The locomotive also includes a cooling system (10) in selective communication with the respective cooling passages for selectively providing a first coolant (56) and a second coolant (52) at a higher temperature than the first coolant to the cooling passages. A method of operating the cooling system includes providing, in a first mode, a first coolant flow (26) to the intercooler and a second coolant flow (30) to the oil cooler at a first temperature different than the first coolant flow to achieve preferential cooling of the intercooler. The method also includes providing, in a second mode, the first coolant flow to the intercooler and the second coolant flow to the oil cooler at a second temperature different than the first coolant flow to achieve preferential cooling of the oil cooler.
대표청구항▼
What is claimed is: 1. In a locomotive having an engine, an intercooler, and an oil cooler, each having respective cooling passages formed therein, and a cooling system in selective communication with the respective cooling passages for selectively providing a first coolant and a second coolant at
What is claimed is: 1. In a locomotive having an engine, an intercooler, and an oil cooler, each having respective cooling passages formed therein, and a cooling system in selective communication with the respective cooling passages for selectively providing a first coolant and a second coolant at a higher temperature than the first coolant to the cooling passages, a method of operating the cooling system comprising: providing, in a first mode, a first coolant flow to the intercooler and a second coolant flow to the oil cooler at a first temperature different than the first coolant flow to achieve preferential cooling of the intercooler effective to optimize an emission level produced by the engine while maintaining a desired horsepower output produced by the engine; and providing, in a second mode, the first coolant flow to the intercooler and the second coolant flow to the oil cooler at a second temperature different than the first coolant flow to achieve preferential cooling of the oil cooler effective to optimize a horsepower output produced by the engine. 2. The method of claim 1, wherein the first temperature of the second coolant flow is higher than a temperature of the first coolant flow. 3. The method of claim 2, further comprising, in the first mode, directing the first coolant into the first coolant flow. 4. The method of claim 2, further comprising, in the first mode, directing more of the first coolant into the first coolant flow than the second coolant. 5. The method of claim 2, further comprising, in the first mode, directing more of the second coolant into the second coolant flow than the first coolant. 6. The method of claim 1, wherein the second temperature of the second coolant flow is lower than a temperature of the first coolant flow. 7. The method of claim 6, further comprising, in the second mode, directing the first coolant into the second coolant flow. 8. The method of claim 6, further comprising, in the second mode, directing more of the second coolant into the first coolant flow than the first coolant. 9. The method of claim 6, further comprising, in the second mode, directing more of the first coolant into the second coolant flow than the second coolant. 10. The method of claim 1, further comprising selectively configuring the cooling system in a desired mode according to an input from an environmental sensor sensing an environmental condition proximate the locomotive. 11. The method of claim 1, further comprising selectively configuring the cooling system in a desired mode according to an input from a locomotive operation sensor sensing an operational condition of the locomotive. 12. The method of claim 1, further comprising selectively configuring the cooling system in a desired mode according to a control signal provided by an operator of the locomotive. 13. The method of claim 1, further comprising implementing the second mode when the ambient temperature proximate the locomotive is above a predetermined value at a predetermined operating altitude. 14. The method of claim 1, further comprising implementing the second mode when the locomotive is operating in a condition wherein an emissions requirement is waived. 15. The method of claim 1, further comprising implementing the first mode when the ambient temperature proximate the locomotive is within a predetermined range at a predetermined operating altitude. 16. The method of claim 1, further comprising providing, in a third mode, the first coolant flow to the intercooler and the second coolant flow to the oil cooler at a third temperature different than the first coolant flow to achieve a desired engine durability. 17. The method of claim 1, further comprising implementing the third mode when the ambient temperature proximate the locomotive is below a predetermined value at a predetermined operating altitude. 18. A cooling system for a locomotive having an engine, an intercooler, and an oil cooler, each having respective cooling passages formed therein, and a first cooler and a second cooler in selective communication with the respective cooling passages for selectively providing a first coolant and a second coolant at a warmer temperature than the first coolant to the cooling passages, the system comprising: a cooling circuit configurable in a first mode for directing more of the first coolant than the second coolant to the intercooler and a more of the second coolant to the oil cooler effective to optimize an emission level produced by the engine while maintaining a desired horsepower output produced by the engine and configurable in a second mode for directing a more of the second coolant than the first coolant to the intercooler and a more of the first coolant than the second coolant to the oil cooler effective to optimize a horsepower output produced by the engine; a first valve for selectively controlling the first coolant flow provided by the engine; a second valve for selectively controlling the second coolant flow provided by the engine; a controller controlling respective positions of the valves to selectively configure the cooling system in the first mode and second mode according to an input received by the controller. 19. The system of claim 18, wherein the input comprises a signal provided by environmental sensor sensing an environmental condition proximate the locomotive. 20. The system of claim 18, wherein the input comprises a signal provided by locomotive operation sensor sensing an operational condition of the locomotive. 21. The system of claim 20, wherein the locomotive operation sensor comprises a coolant temperature sensor, an oil temperature sensor, or an emission sensor. 22. The system of claim 18, wherein the input comprises a control signal provided by an operator of the locomotive. 23. The system of claim 22, wherein the control signal comprises a horsepower demand control signal. 24. In a locomotive having an engine, an intercooler, and an oil cooler, each having respective cooling passages formed therein, and a cooling system in selective communication with the respective cooling passages for selectively providing a first coolant and a second coolant at a higher temperature than the first coolant to the cooling passages, computer readable media containing program instructions for operating the cooling system, the computer readable media comprising: a computer program code for configuring the cooling system to provide, in a first mode, a first coolant flow to the intercooler and a second coolant flow to the oil cooler at a first temperature different than the first coolant flow to achieve preferential cooling of the intercooler effective to optimize an emission level produced by the engine while maintaining a desired horsepower output produced by the engine; and a computer program code for configuring the cooling system to provide, in a second mode, the first coolant flow to the intercooler and the second coolant flow to the oil cooler at a second temperature different than the first coolant flow to achieve preferential cooling of the oil cooler effective to optimize a horsepower output produced by the engine.
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이 특허에 인용된 특허 (5)
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