[특허]Fuel injection apparatus

Fuel injection apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02M-027/04
출원번호	US-0214168 (1994-03-16)
우선권정보	JP-0054452 (1993-03-16)
발명자 / 주소	Ariga Hironobu (Kanagawa JPX) Sato Kazuhiro (Kanagawa JPX)
출원인 / 주소	Nissan Motor Co., Ltd. (Yokohama JPX 03)
인용정보	피인용 횟수 : 28 인용 특허 : 0

초록 ▼

An apparatus for injecting fuel into an engine through fuel injectors connected to a fuel tank through a fuel supply passage having a fuel pump provided therein. The apparatus include a first pressure regulator provided in the fuel supply passage between the fuel pump and the fuel injectors for varying the amount of excess fuel returned through a first return passage to the fuel tank to maintain a first predetermined pressure differential across the fuel injectors. The apparatus also includes a second pressure regulator provided in the fuel supply passage downstream of the fuel injectors for varying the amount of excess fuel returned through a second return passage to the fuel tank to maintain a second predetermined pressure differential across the fuel injectors. The second predetermined pressure differential is higher than the first predetermined pressure differential. A control valve is provided in the first return passage. The control valve is normally open and it closes the first return passage to inhibit the pressure regulation of the first pressure regulator under predetermined engine starting conditions.

대표청구항 ▼

A fuel injection apparatus for an internal combustion engine, comprising: a fuel injector connected to a fuel tank through a fuel supply passage for injecting fuel into the engine; a fuel pump provided in the fuel supply passage for pressurizing the fuel supplied from the fuel tank to the fuel injector; a first pressure regulator provided in the fuel supply passage, the first pressure regulator being operable for varying the amount of excess fuel returned through a first return passage to the fuel tank to maintain a first predetermined pressure differential across the fuel injector; a control valve provided in the first return passage for closing the first return passage in response to a command signal; a second pressure regulator provided in the fuel supply passage downstream of the first pressure regulator, the second pressure regulator being operable for varying the amount of excess fuel returned through a second return passage to the fuel tank to maintain a second predetermined pressure differential across the fuel injector, the second predetermined pressure differential being higher than the first predetermined pressure differential; and a control unit responsive to predetermined engine conditions for producing the command signal to the control valve.

이 특허를 인용한 특허 (28)

Hayakawa, Yoshiki, Accumulator fuel injection system capable of preventing abnormally high pressure.
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Dusa, Daniel; Thomas, Joseph Lyle; Surnilla, Gopichandra; Ulrey, Joseph Norman; Pursifull, Ross Dykstra, Addressing fuel pressure uncertainty during startup of a direct injection engine.
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Hou, Shou L, Constant-speed multi-pressure fuel injection system for improved dynamic range in internal combustion engine.
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Hou,Shou L., Constant-speed multi-pressure fuel injection system for improved dynamic range in internal combustion engine.
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Schwegler Helmut,DEX ; Frank Kurt,DEX ; Seitz Ansgar,DEX ; Bueser Wolfgang,DEX ; Talmon Uwe,DEX, Device for supplying internal combustion engine with fuel from supply container.
상세보기
Harper, Henry W; Hubl, Peter; Kuieck, Bryan A, Diesel fuel injection priming system.
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Burkhard James Frank ; Dauer Kenneth John, Electronically variable pressure control.
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Vahle, Stephan; Hahner, Thorsten; Guntermann, Bernd; Uszko, Stan, Fuel delivery module for petrol direct injection applications including supply line pressure regulator and return line shut-off valve.
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Igarashi Kyoya (Okazaki JPX) Kume Tateo (Okazaki JPX) Yoshida Masato (Kyoto JPX) Murakami Nobuaki (Kyoto JPX) Oda Hideyuki (Kyoto JPX), Fuel feeding system for internal combustion engine.
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Saito Chitoshi,JPX, Fuel injection system for outboard motor.
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Cotton,Kenneth J.; Hanby,Jeffrey D., Fuel pressure regulator housing.
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Lorraine Jack R., Fuel recirculation arrangement and method for direct fuel injection system.
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Hamada, Mikio; Wada, Satomi, Fuel supply apparatus for engines.
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Oi Kiyotoshi (Toyohashi JPX) Minagawa Kazuji (Tokoname JPX) Yonekawa Masao (Kariya JPX), Fuel supply apparatus for internal combustion engine.
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Tashima, Kazuchika; Yoshidome, Toshio; Suzuki, Hiromasa; Iwashita, Seiji, Fuel supply device for internal combustion engine and control device for the fuel supply device.
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Hazama,Tadashi; Muramatsu,Toshihiko, Fuel supply system for internal combustion engine.
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Yonekawa Masao (Kariya JPX) Minagawa Kazuji (Tokoname JPX) Oi Kiyotoshi (Toyohashi JPX) Miwa Makoto (Kariya JPX) Majima Yoshihiro (Obu JPX), Fuel supplying apparatus for internal combustion engine.
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Dickerson,Steven J., Fuel system.
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Chamarthi, Gopal Krishna; Fulton, Brien Lloyd; Oberski, Christopher; Lyon, Peter Mitchell, Fuel system control.
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Kumagai, Masato; Yamada, Hiroshi; Mori, Kazuyoshi, Fuel-injection system.
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Kato Masaaki,JPX ; Okajima Masahiro,JPX ; Furuhashi Tsutomu,JPX, High pressure fuel injection system for internal combustion engine.
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Scott F. Shafer, Hydraulically actuated fuel injector including a pilot operated spool valve assembly and hydraulic system using same.
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Carter, Nicholas, Liquefied petroleum gas engine assembly with flow control.
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Boltze,Matthias; Wunderlich,Christian; Jahn,Matthias, Mixture formation means for a reformer of a fuel cell system or for a heater.
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Biester Juergen,DEX ; Kellner Andreas,DEX, Process and device for controlling an internal combustion engine.
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Rembold Helmut,DEX ; Wiltschek Gerhard,DEX ; Mueller Uwe,DEX, Process and device for controlling an internal combustion engine.
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DeRaad,Scott, System and method to prime an electronic returnless fuel system during an engine start.
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Pate,Kevin M., Vent mechanism.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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Fuel injection apparatus 원문보기

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이 특허를 인용한 특허 (28)

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이 특허를 인용한 특허 (28)

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