IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0858563
(2001-05-17)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Rothwell, Figg, Ernst & Manbeck
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인용정보 |
피인용 횟수 :
1 인용 특허 :
6 |
초록
▼
An engine has a fuel supply system comprising a fuel pump provided with valves for opening and closing a fuel suction hole and a fuel exhaust hole alternately, synchronously with a movement of an air supply push rod, a pipe connecting the fuel suction hole of the fuel pump and a fuel supply source t
An engine has a fuel supply system comprising a fuel pump provided with valves for opening and closing a fuel suction hole and a fuel exhaust hole alternately, synchronously with a movement of an air supply push rod, a pipe connecting the fuel suction hole of the fuel pump and a fuel supply source to each other; and a pipe connecting the fuel exhaust hole of the fuel pump and a fuel injection device provided on an air supply port of the cylinder to each other, wherein a fuel is fed to the fuel injection device from the fuel pump owing to an upward movement and a downward movement of the air supply push rod caused by a rotation of the crankshaft; and the air supply valve is opened to inject the fuel.
대표청구항
▼
An engine has a fuel supply system comprising a fuel pump provided with valves for opening and closing a fuel suction hole and a fuel exhaust hole alternately, synchronously with a movement of an air supply push rod, a pipe connecting the fuel suction hole of the fuel pump and a fuel supply source t
An engine has a fuel supply system comprising a fuel pump provided with valves for opening and closing a fuel suction hole and a fuel exhaust hole alternately, synchronously with a movement of an air supply push rod, a pipe connecting the fuel suction hole of the fuel pump and a fuel supply source to each other; and a pipe connecting the fuel exhaust hole of the fuel pump and a fuel injection device provided on an air supply port of the cylinder to each other, wherein a fuel is fed to the fuel injection device from the fuel pump owing to an upward movement and a downward movement of the air supply push rod caused by a rotation of the crankshaft; and the air supply valve is opened to inject the fuel. vely with one of said control pressure inlet ports in said deckplate and a pair of ports communicating with and dividing each of said control pressure outlet ports into an intake and an exhaust valve control pressure port, said gasket having integrally formed therewith a plurality of valve mounting bosses, with each boss having a valving cavity therein communicating with one of said valve inlet ports and each of said cavities communicating with one of said transfer ports respectively; (c) an electrically operated valve disposed in each of said valving cavities and operable upon electrical energization to provide fluid communication between said inlet channel and said transfer port; (d) means operable for retaining the valve in each of said valving cavities, and for retaining and sealing said gasket over the control pressure outlet ports, the supply channel, and said supply pressure inlet ports; and, (e) means for providing electrical connection to the valve in each of said valving cavities. 2. The combination defined in claim 1, wherein said means for retaining said valves in each of said cavities includes a common plate received over each valve. 3. The combination defined in claim 2, wherein said means for retaining and sealing said gasket over the control pressure outlet ports, the supply channel and the supply pressure inlet ports includes a pair of superposed plates. 4. The combination defined in claim 1, wherein said gasket is formed with polyamide material having about one-third by volume of glass filler. 5. The combination defined in claim 1, wherein said deckplate is formed of aluminum material. 6. The combination defined in claim 1, wherein said deckplate includes a boss disposed on the side opposite said common side for mounting a pressure sensor. 7. The combination defined in claim 1, wherein said gasket includes portions thereof arranged to seal about the margins of said deckplate upon mounting on the engine. 8. The combination defined in claim 1, wherein said means for providing electrical connection for said valve in each of said cavities includes a common lead frame including terminals effecting electrical connection with the valve in each cavity. 9. The combination defined in claim 8, wherein said terminals effect plug-in electrical connection with the valve in each of said cavities. 10. The combination defined in claim 1, wherein said terminals include electrical leads for external electrical connection thereto. 11. The combination defined in claim 1, wherein said valve includes a means for sealing said valve in said cavity and isolating said transfer port from said control pressure inlet port. 12. The combination defined in claim 11, wherein said means for sealing comprises a pair of annular seals. 13. The combination defined in claim 1, wherein said valve is solenoid operated. 14. The combination defined in claim 1, wherein said means for retaining the valve and said gasket comprises a pair of superposed plates attached to the deckplate. 15. A method of making an electro-hydraulic assembly for controlling actuation of combustion chamber valves in a multi-cylinder engine comprising: (a) providing a deckplate and forming a supply channel on one side thereof and an inlet supply pressure port communicating therewith; (b) forming a plurality of control pressure inlet ports in spaced arrangement on the one side of the deckplate and forming a plurality of control pressure outlet ports in said one side each communicating respectively with one of said control pressure inlet ports; (c) disposing a one-piece gasket on said one side of the deckplate and forming separate intake and exhaust valve pressure control ports therein communicating with a common one of the control pressure outlet ports in the deckplate and forming a plurality of spaced supply ports therein with each supply port communicating with the deckplate supply channel; (d) forming a plurality of valve mounting bosses spaced on said gasket and fo rming a valving cavity in each boss and disposing a valve in each of said cavities for communicating with one of the gasket supply ports and forming a transfer passage in each cavity and communicating the transfer passage respectively with one of the control pressure inlet ports in the deckplate; (e) disposing an inlet and outlet of an electrically operated valve in each of said cavities and communicating the valve inlet with said supply port therein and the valve outlet with said transfer port therein; and, (f) compressing said gasket on said deckplate and sealing over said supply channel, said control pressure inlet ports and said control pressure outlet ports and retaining said valves on said bosses and electrically connecting to each of the valves. 16. The method defined in claim 15, wherein the step of disposing the inlet and outlet of a valve includes disposing an annular seal in said cavity. 17. The method defined in claim 15, wherein the step of retaining said valves includes disposing a plurality of spacers between the lead frame and the gasket. 18. The method defined in claim 17, wherein the step of retaining said valves includes disposing a fastener through each of the spacers. 19. The method defined in claim 15, wherein the step of disposing a one-piece gasket includes forming a gasket having polyamide material therein. 20. The method defined in claim 15, wherein the step of forming a gasket includes forming a gasket having polyamide material filled about one-third by volume with glass material. 21. The method defined in claim 15, wherein the step of providing a deckplate includes forming a boss on the side opposite said one side and disposing a pressure sensor in said boss. 22. The method defined in claim 15, wherein the step of electrically connecting to each of the valves includes plug-in connecting. Marmin, 101/225; US-6085650, 20000700, Peterson
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