[특허]Fuel injection system with pressure decay metering method

[미국특허] Fuel injection system with pressure decay metering method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02M-037/04
출원번호	US-0870153 (1997-06-05)
발명자 / 주소	Wakeman Russell J.
출원인 / 주소	Siemens Automotive Corporation
인용정보	피인용 횟수 : 3 인용 특허 : 12

초록 ▼

A fuel injection system for an engine having exhaust valve train drive means includes a compression spring connected to the exhaust valve train drive member for compression and expansion movement with the drive member. A diaphragm fuel pump includes a pumping chamber having a pump diaphragm driven by a compression spring. The pumping chamber includes a fuel inlet passage having a check valve therein. An injector chamber, in fuel flow communication with the pumping chamber, receives fuel from the pumping chamber during compression and expansion cycling of the compression spring. The injector chamber includes an accumulator and connects with a fuel injector. A check valve is disposed between the chambers prevents fuel flow back into the pumping chamber. A pressure sensor is mounted for sensing fuel pressure in the injector chamber and operates to communicate the fuel pressure value in the injector chamber. An engine controller receives the fuel pressure value of the fuel pressure in the injector chamber and controls fuel metering based upon the reduction in fuel pressure in the injector chamber during engine fuel injection. A timing member is in communication with the engine controller for initiating fuel injection.

대표청구항 ▼

[ What is claimed is:] [1.] A fuel injection system for an engine having exhaust valve train drive means, the system comprising:a compression spring connected to said exhaust valve train drive means for compression and expansion movement therewith;a diaphragm fuel pump including:a pumping chamber having a pump diaphragm driven by said compression spring, said pumping chamber including a fuel inlet passage having a check valve therein,an injector chamber in fuel flow communication with said pumping chamber and receiving fuel from said pumping chamber during cycling of said compression spring, said injector chamber including an accumulator and being connected with a fuel injector,a check valve between said chambers preventing fuel flow back into said pumping chamber;a pressure sensor mounted for sensing fuel pressure in said injector chamber and operable to communicate the fuel pressure value in said injector chamber;an engine controller receiving said fuel pressure value in said injector chamber for controlling fuel metering based upon the reduction in fuel pressure in said injector chamber during engine fuel injection; andtiming means in communication with said engine controller for initiating fuel injection.

이 특허에 인용된 특허 (12) 인용/피인용 타임라인 분석

Nozaki Shinya (Higashimatsuyama JPX) Yamada Keiichi (Higashimatsuyama JPX) Kushida Takeo (Higashimatsuyama JPX), Fuel injection apparatus for internal combustion engines.
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Eckert ; Konrad ; Knapp ; Heinrich ; Stumpp ; Gerhard, Fuel injection system.
상세보기
Hillebrand George A. (Battle Creek MI), Fuel injection system and timing advance device therefor.
상세보기
Matsushima Seiya (Wako JPX) Sugimoto Yukio (Wako JPX) Kimata Ryuichi (Wako JPX) Tamamoto Ryhei (Wako JPX) Tanaka Megumi (Wako JPX), Fuel injection system for internal combustion engines.
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Popp Heinz (Roitham ATX), Fuel injection system for motor vehicles.
상세보기
Ishida Akio,JPX, Fuel injection system of an engine and a control method therefor.
상세보기
Takahashi Takeshi (Mishima JPX), Fuel injector.
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Takahashi Takeshi (Mishima JPX), Fuel injector for use in an internal combustion engine.
상세보기
Willman Gary G. (Belleville IL) Dunn Richard J. (Bourbon MO), Fuel pump accumulator.
상세보기
Leighton Sam R. (Nedlands AUX), Fuel system for fuel injected internal combustion engines.
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Rotter Terrence M. (Sheboygan Falls WI), Integral engine valve cover and fuel pump.
상세보기
LeBlanc Jean (Lyons FRX) Rossignol Francois (Mornant FRX), Pump/nozzle unit for fuel injection in internal combustion engines.
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이 특허를 인용한 특허 (3) 인용/피인용 타임라인 분석

Pursifull,Ross Dykstra; Ulrey,Joseph Norman, Direct injection fuel system utilizing water hammer effect.
상세보기
Ulrey, Joseph Norman; Storhok, Eric Matthew; Pursifull, Ross Dykstra; Gonzales, Jr., Frank, Direct injection fuel system with reservoir.
상세보기
Kondo, Jun; Yamanaka, Akitoshi, Fuel injector with fuel pressure sensor.
상세보기

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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

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[미국특허] Fuel injection system with pressure decay metering method 원문보기