Fuel delivery module for high fuel pressure for engines
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02M-037/08
F02M-037/00
출원번호
UP-0983364
(2007-11-08)
등록번호
US-7631634
(2009-12-24)
발명자
/ 주소
Ramamurthy, Dhyana
Okada, Kingo
출원인 / 주소
DENSO International America, Inc.
대리인 / 주소
Harness, Dickey & Pierce, PLC
인용정보
피인용 횟수 :
3인용 특허 :
8
초록▼
A fuel pump module comprising a fuel pump, a pressure regulator, a supply line check valve, a relief valve, and a flange adapted to engage a fuel supply line that fluidly links the fuel pump module with an injector rail. The pressure regulator is adapted to maintain a predetermined fuel pressure bet
A fuel pump module comprising a fuel pump, a pressure regulator, a supply line check valve, a relief valve, and a flange adapted to engage a fuel supply line that fluidly links the fuel pump module with an injector rail. The pressure regulator is adapted to maintain a predetermined fuel pressure between the fuel pump and the supply line check valve. The supply line check valve is adapted to facilitate a minimum fuel pressure in the fuel supply line. The relief valve is adapted to limit the maximum fuel pressure in the fuel supply line. The supply line check valve, the relief valve, and the flange are integrated to form a single fluidly interconnected structure disposed within a fluid path between the pressure regulator and the fuel supply line. An integrated casing may house the fuel pump and the pressure regulator.
대표청구항▼
What is claimed is: 1. A fuel pump module for delivering fuel from a fuel tank to an engine, the fuel pump module comprising: a flange; a fuel pump and a fuel filter, the fuel filter surrounding the fuel pump to receive fuel; a fuel supply line check valve located downstream of the fuel filter, the
What is claimed is: 1. A fuel pump module for delivering fuel from a fuel tank to an engine, the fuel pump module comprising: a flange; a fuel pump and a fuel filter, the fuel filter surrounding the fuel pump to receive fuel; a fuel supply line check valve located downstream of the fuel filter, the fuel supply line check valve for releasing fuel to the engine; a pressure relief valve located downstream of the fuel filter and mounted physically parallel with the fuel supply line check valve, the fuel supply line check valve and the pressure relief valve both located under the flange and permitting fluid flow in opposite directions; a pressure regulator that governs a reference pressure of the pressure relief valve, the pressure regulator located within a fluid path between the fuel pump and the fuel supply line check valve; and a fuel pump check valve connected to a top of the fuel pump, the fuel pump check valve for retaining pressure in the fluid path between the fuel pump and the fuel supply line check valve located under the flange. 2. The fuel pump module of claim 1, wherein the fuel supply line check valve and the pressure relief valve are vertically arranged. 3. The fuel pump module of claim 1, wherein the fuel supply line check valve and the pressure relief valve are integral with the flange. 4. The fuel pump module of claim 1, wherein a fluid link between the pressure relief valve and the fuel supply line check valve is made with a hose. 5. The fuel pump module of claim 1, wherein a fluid link between the pressure relief valve and the fuel supply line check valve is hoseless. 6. The fuel pump module of claim 1, further comprising: a single housing structure within which the supply line check valve and the pressure relief valve reside. 7. The fuel pump module of claim 6, wherein the single housing structure is welded to the flange. 8. The fuel pump module of claim 7, wherein the single housing structure is hot plate welded to the flange to become integral to the flange. 9. The fuel pump module of claim 8, wherein the pressure relief valve is arranged horizontally and the supply line check valve is arranged vertically to utilize space under the flange. 10. The fuel pump module of claim 9, wherein the pressure relief valve and the supply line check valve are fluidly linked in a hoseless fashion. 11. The fuel pump module of claim 9, wherein the flange and the single housing structure together form a fluid passage that fluidly links the pressure relief valve and the supply line check valve. 12. The fuel pump module of claim 1, wherein the pressure relief valve further comprises an inlet orifice with a diameter smaller than an exit diameter. 13. A fuel pump module within a fuel tank, the fuel pump module comprising: a fuel pump surrounded by a fuel filter, the fuel pump and fuel filter disposed within a single fuel filter case; a pressure regulator case housing a pressure regulator, the pressure regulator case fixed adjacent-to the fuel filter case; a check valve, for releasing fuel to the engine, and a pressure relief valve, the check valve and the pressure relief valve mounted within the fuel tank, arranged fluidly in parallel, and located downstream of the fuel filter; and a fuel pump check valve mounted atop the fuel pump, the fuel pump check valve for maintaining pressure in a fuel path between the fuel pump check valve and the pressure regulator. 14. The fuel pump module of claim 13, further comprising: a single housing structure within which the check valve and the pressure relief valve reside. 15. The fuel pump module of claim 14, wherein the single housing structure is fastened to the flange. 16. The fuel pump module of claim 15, wherein the single housing structure is hot plate welded to the flange to become integral to the flange. 17. The fuel pump module of claim 13, wherein the pressure relief valve and the check valve are fluidly and hoselessly linked. 18. A fuel pump module within a fuel tank, the fuel pump module comprising: a fuel pump and a fuel filter disposed within a single fuel filter case; a pressure regulator case housing a pressure regulator, the pressure regulator case fixed adjacent to the fuel filter case; a flange to which a single housing structure is welded; a check valve and a pressure relief valve arranged fluidly in parallel as part of a single housing structure, both the check valve and the pressure relief valve located downstream of the fuel filter; and a fuel pump check valve mounted atop the fuel pump, the fuel pump check valve for maintaining pressure in a fuel path between the fuel pump check valve and the pressure regulator when the fuel pump is not operating. 19. The fuel pump module of claim 18, wherein the check valve and the pressure relief valve are fluidly parallel and fluidly linked with a single hose. 20. The fuel pump module of claim 18, wherein the check valve and the pressure relief valve are fluidly parallel and fluidly linked hoselessly. 21. The fuel pump module of claim 18, wherein the flange and the single housing structure together form a fluid path to the pressure relief valve. 22. The fuel pump module of claim 18, the pressure relief valve further comprises an inlet orifice with a diameter smaller than an exit diameter.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (8)
Hassinger Christian V. (Canton MI) Kempfer Stephen T. (Canton MI) Stein Matthew L. (Ypsilanti MI) Betki Randall A. (Grosse Ile MI), Automotive returnless fuel system pressure valve.
Klaus Joos DE; Jens Wolber DE; Thomas Frenz DE; Markus Amler DE; Hansjoerg Bochum, Operation control for a fuel feeding module with variable system pressure.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.