Internal combustion engine and method of operating such engine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02M-015/00
F02B-025/00
F02B-033/22
F02B-021/00
F02D-039/04
F02M-069/04
출원번호
US-0263303
(2009-12-17)
등록번호
US-8925526
(2015-01-06)
국제출원번호
PCT/US2009/068469
(2009-12-17)
§371/§102 date
20120120
(20120120)
국제공개번호
WO2010/075167
(2010-07-01)
발명자
/ 주소
Anders, Jonathan W.
Fiveland, Scott B.
Hergart, Carl-Anders
출원인 / 주소
Caterpillar Inc.
대리인 / 주소
Leydig, Voit & Mayer, Ltd.
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
A method of operating a combustion engine including causing an intake stroke in a first cylinder, causing a compression stroke in the first cylinder thereby creating pressurized fluid and releasing pressurized fluid from the first cylinder. The method further includes cooling the released fluid, dir
A method of operating a combustion engine including causing an intake stroke in a first cylinder, causing a compression stroke in the first cylinder thereby creating pressurized fluid and releasing pressurized fluid from the first cylinder. The method further includes cooling the released fluid, directing the cooled fluid into a second cylinder over a first period of time and injecting fuel into the second cylinder over a second period of time whereby the first and second periods of time at least partially overlap.
대표청구항▼
1. A method of operating a combustion engine, comprising: causing an intake stroke in a first cylinder;causing a compression stroke in the first cylinder thereby creating a pressurized fluid;releasing the pressurized fluid from the first cylinder;cooling the pressurized fluid that is released to for
1. A method of operating a combustion engine, comprising: causing an intake stroke in a first cylinder;causing a compression stroke in the first cylinder thereby creating a pressurized fluid;releasing the pressurized fluid from the first cylinder;cooling the pressurized fluid that is released to form a flow of cooled fluid;directing the flow of cooled fluid into a second cylinder over a first period of time; andinjecting fuel into the second cylinder over a second period of time, wherein the first and second periods of time at least partially overlap;wherein the second cylinder is provided with an inlet valve configured to control the flow of cooled fluid into the second cylinder, the method further comprising injecting the fuel in the flow of cooled fluid upstream of the inlet valve only while the inlet valve is open so that a mixture of the flow of cooled fluid and the fuel enter the second cylinder. 2. The method according to claim 1, further comprising injecting the fuel into the cooled fluid while the cooled fluid is flowing in a direction generally towards a piston in the second cylinder. 3. The method according to claim 1, further comprising directing the cooled fluid and injecting the fuel in directions generally towards a piston in the second cylinder. 4. The method according to claim 1, wherein cooling the pressurized fluid that is released includes lowering a temperature of the pressurized fluid that is released by about 40 to 60 K. 5. The method according to claim 1, wherein the second cylinder is configured to receive the flow of cooled pressurized fluid from the first cylinder and to perform a power stroke and an exhaust stroke, the method including directing at least a portion of the flow of cooled fluid into the second cylinder during the power stroke. 6. The method of claim 1, wherein directing the cooled fluid into the second cylinder includes providing the cooled fluid to a transfer passage fluidly connecting the first cylinder to the second cylinder, and wherein the method further comprises selectively storing at least a portion of the pressurized fluid in a pressure storage device that is fluidly connected to the transfer passage via a pressure valve arrangement disposed to fluidly connect or isolate the pressure storage device and the transfer passage. 7. The method according to claim 5, comprising injecting the fuel during the power stroke. 8. An internal combustion engine comprising: a pair of first and second cylinders configured to operate on a split-cycle principle, the first cylinder being configured to run intake and compression strokes, the second cylinder of the pair being configured to run power and exhaust strokes;a passage fluidly connecting the first and second cylinders and configured to enable transfer of a flow of pressurized fluid between the first and second cylinders;a cooling arrangement associated with the passage, the cooling arrangement operating to cool the flow of pressurized fluid;a valve arrangement to control the flow of the pressurized fluid into the second cylinder over a first period of time;a fuel injection arrangement configured to inject fuel into the second cylinder over a second period of time, the fuel injection arrangement being configured to inject the fuel into the flow of pressurized fluid upstream of the valve arrangement; anda control arrangement configured to control at least the fuel injection arrangement such that the first and second time periods at least partially overlap, wherein, during an overlap of the first and second time periods, an inlet valve of the valve arrangement is open so that a mixture of the flow of pressurized fluid and the fuel enter the second cylinder. 9. The internal combustion engine according to claim 8, wherein the valve arrangement includes at least one inlet port configured to direct the flow of pressurized fluid in a direction generally towards a piston in the second cylinder. 10. The internal combustion engine according to claim 8, wherein the fuel injection arrangement is configured to inject the fuel into the flow of pressurized fluid while the flow of pressurized fluid is flowing in a direction generally towards a piston in the second cylinder. 11. The internal combustion engine of claim 8, further comprising: a pressure storage device that is fluidly connected to the passage; anda pressure valve arrangement disposed between the pressure storage device and the passage, said pressure valve arrangement configured to selectively fluidly connect or isolate the pressure storage device and the transfer passage. 12. The internal combustion engine of claim 9, wherein the at least one inlet port comprises at least two inlet ports and the fuel injection arrangement is arranged such that the fuel is injected into fluid flows of all of the at least two inlet ports. 13. A method of operating a combustion engine comprising: causing an intake stroke in a first cylinder;causing a compression stroke in the first cylinder thereby creating pressurized fluid;releasing the pressurized fluid from the first cylinder;cooling the pressurized fluid that is released from the first cylinder to form a cooled fluid;directing the cooled fluid into a second cylinder;injecting fuel into the second cylinder for combustion with the cooled fluid, wherein the fuel is injected upstream of the second cylinder only while an inlet valve to the second cylinder, through which the cooled fluid enters the second cylinder, is open so that a mixture of the cooled fluid and the fuel enter the second cylinder. 14. The method according to claim 13, wherein cooling the pressurized fluid that is released from the first cylinder includes lowering a temperature of the pressurized fluid by about 40-60 K. 15. The method according to claim 13, further including injecting the fuel into the pressurized fluid while the cooled fluid is directed into the second cylinder. 16. The method of claim 13, wherein directing the cooled fluid into the second cylinder includes providing the cooled fluid to a transfer passage fluidly connecting the first cylinder to the second cylinder, and wherein the method further comprises selectively storing pressurized fluid in a pressure storage device that is fluidly connected to the transfer passage via a pressure valve arrangement disposed to fluidly connect or isolate the pressure storage device and the transfer passage. 17. A method of operating a combustion engine comprising: causing an intake stroke in a first cylinder;causing a compression stroke in the first cylinder thereby creating pressurized fluid;releasing the pressurized fluid from the first cylinder;flowing the pressurized fluid into a second cylinder during a first period of time;injecting fuel into the second cylinder during a second period of time wherein the first period of time and the second period of time at least partially overlap and wherein the fuel is injected into the pressurized fluid while the pressurized fluid is flowing upstream of the second cylinder in a direction generally towards a piston in the second cylinder only while an inlet valve, through which the cooled fluid enters the second cylinder, is open so that a mixture of the cooled fluid and the fuel enter the second cylinder. 18. The method according to claim 17, comprising flowing the pressurized fluid and injecting the fuel in directions generally towards a piston in the second cylinder. 19. The method according to claim 17, comprising cooling the pressurized fluid before it enters the second cylinder. 20. The method of claim 17, wherein directing the cooled fluid into the second cylinder includes providing the cooled fluid to a transfer passage fluidly connecting the first cylinder to the second cylinder, and wherein the method further comprises selectively storing pressurized fluid in a pressure storage device that is fluidly connected to the transfer passage via a pressure valve arrangement disposed to fluidly connect or isolate the pressure storage device and the transfer passage.
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이 특허에 인용된 특허 (3)
Robinson Thomas C. (100 Hill Rd. Berkeley CA 94708) Kitrilakis Sotiris (33 Roble Rd. Berkeley CA 94705), Engine.
Holler, Dennis P.; Johnson, Travis S.; Hulen, Matthew R.; Anliker, Randall J.; Edwards, Michael W.; Spurgeon, Larry L.; Sheldon, Jr., Victor L., Engine system having cooled and heated inlet air.
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