KR970070522A - 연료 분사 장치 - Google Patents

연료 분사 장치 Download PDF

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Publication number
KR970070522A
KR970070522A KR1019970005424A KR19970005424A KR970070522A KR 970070522 A KR970070522 A KR 970070522A KR 1019970005424 A KR1019970005424 A KR 1019970005424A KR 19970005424 A KR19970005424 A KR 19970005424A KR 970070522 A KR970070522 A KR 970070522A
Authority
KR
South Korea
Prior art keywords
fuel
common rail
pump chamber
solenoid valve
pressure
Prior art date
Application number
KR1019970005424A
Other languages
English (en)
Other versions
KR100257094B1 (ko
Inventor
아키라 모리시타
슈조 이소쯔미
게이이찌 고니시
Original Assignee
기다오카 다가시
미쓰비시덴키 가부시키가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 기다오카 다가시, 미쓰비시덴키 가부시키가이샤 filed Critical 기다오카 다가시
Publication of KR970070522A publication Critical patent/KR970070522A/ko
Application granted granted Critical
Publication of KR100257094B1 publication Critical patent/KR100257094B1/ko

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3827—Common rail control systems for diesel engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/31—Control of the fuel pressure

Abstract

본 발명은 고압 공급 펌프의 스필 제어 솔레노이드 밸브의 통전 제어를 용이하게 하는 것이다.
전자 제어 유닛(12)은 고압 공급 펌프(7)로의 펌프실(73) 각각의 연료 압송 가능 기간 전체 동안 스필 제어 솔레노이드 밸브(9)를 전부 개방하거나 전부 폐쇄 되도록 제어한다. 그러기 위해서 엔진의 부하에 대응하여, 압송 회수를 조정하며, 공동 레일(4)의 연료 압력을 소정의 압력을 제어한다.

Description

연료 분사 장치.
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예 1에 있어서 연료 분사 장치의 개략 구성도, 제2도는 본 발명의 실시예 1에 있어서 고압 공급 펌프의 단면도, 제3도는 본 발명의 실시예 1에 있어서 고압 공급 펌프와 펌프 구동 기구와의 개략 구성도, 제4도는 본 발명의 실시예 1에 있어서 고압 공급 펌프의 동작을 도시하는 타임 차트.

Claims (1)

  1. 가압 연료를 축압하는 공동 레일, 상기 공동 레일내의 연료를 엔진의 각 기통에 분사하고 전기 신호에 응답해서 연료 분사를 제어하는 분사 노즐, 상기 연료가 유입되는 펌프실, 상기 펌프실의연료를 상기 코몬레일을 향해서 압송하고 상기 코먼레일내의 연료를 가압하는 고압 공급 펌프, 상기 펌프실과 저압 연료 통로를 연통하는 통로에 설치되며 밸브 개방시에 상기 펌프실과 상기 저압 연료 통로를 연통시키고 밸브 폐쇄시에 상기 펌프실로부터 상기 공동 레일로의 연료를 압송시키는 솔레노이드 밸브, 및 상기 펌프실로 연료를 압송가능한 기간 동안 상기 솔레노이드 밸브의 전폐쇄 또는 전개방을 조정하여 상기 공동 레일내의 연료 압력을 소정 압력으로 제어하는 제어 수단을 구비하는 것을 특징으로 하는 연료 분사 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970005424A 1996-04-17 1997-02-22 연료 분사 장치 KR100257094B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP96-95554 1996-04-17
JP09555496A JP3304755B2 (ja) 1996-04-17 1996-04-17 燃料噴射装置

Publications (2)

Publication Number Publication Date
KR970070522A true KR970070522A (ko) 1997-11-07
KR100257094B1 KR100257094B1 (ko) 2000-06-01

Family

ID=14140805

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970005424A KR100257094B1 (ko) 1996-04-17 1997-02-22 연료 분사 장치

Country Status (6)

Country Link
US (1) US5771864A (ko)
EP (1) EP0802322B1 (ko)
JP (1) JP3304755B2 (ko)
KR (1) KR100257094B1 (ko)
CN (1) CN1068933C (ko)
DE (1) DE69708193T2 (ko)

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US6311674B1 (en) 1998-04-15 2001-11-06 Denso Corporation Fuel injection system for internal combustion engine
KR100371444B1 (ko) * 1998-08-17 2003-03-31 주식회사 두원정공 축압식연료분사장치
JP4088738B2 (ja) * 1998-12-25 2008-05-21 株式会社デンソー 燃料噴射ポンプ
EP1471247B1 (en) * 1999-02-09 2006-10-18 Hitachi, Ltd. High pressure fuel supply pump for internal combustion engine
US7762238B2 (en) * 1999-04-16 2010-07-27 Caterpillar Inc. Sleeve metered unit pump and fuel injection system using the same
JP3794205B2 (ja) * 1999-06-15 2006-07-05 いすゞ自動車株式会社 コモンレール式燃料噴射装置
JP3465641B2 (ja) * 1999-07-28 2003-11-10 トヨタ自動車株式会社 燃料ポンプの制御装置
JP3633388B2 (ja) * 1999-08-04 2005-03-30 トヨタ自動車株式会社 内燃機関の高圧燃料ポンプ制御装置
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Also Published As

Publication number Publication date
CN1179508A (zh) 1998-04-22
DE69708193T2 (de) 2002-06-20
EP0802322A1 (en) 1997-10-22
CN1068933C (zh) 2001-07-25
KR100257094B1 (ko) 2000-06-01
JP3304755B2 (ja) 2002-07-22
DE69708193D1 (de) 2001-12-20
JPH09287536A (ja) 1997-11-04
US5771864A (en) 1998-06-30
EP0802322B1 (en) 2001-11-14

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