KR930010366A - 내연기관의 연료분사 펌프 - Google Patents

내연기관의 연료분사 펌프 Download PDF

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Publication number
KR930010366A
KR930010366A KR1019920021187A KR920021187A KR930010366A KR 930010366 A KR930010366 A KR 930010366A KR 1019920021187 A KR1019920021187 A KR 1019920021187A KR 920021187 A KR920021187 A KR 920021187A KR 930010366 A KR930010366 A KR 930010366A
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South Korea
Prior art keywords
pump
pressure
chamber
fuel
internal combustion
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KR1019920021187A
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KR100280059B1 (ko
Inventor
라우페르 헬무트
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한스 쥐르겐 호헨스테인, 빌프레트 뵈르
로베르트 보쉬 게엠베하
빌프레트 뵈르
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Publication of KR930010366A publication Critical patent/KR930010366A/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
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
    • F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
    • 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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • 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
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
    • F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
    • F02M41/12—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
    • F02M41/123—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor characterised by means for varying fuel delivery or injection timing
    • F02M41/125—Variably-timed valves controlling fuel passages

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

내연기관의 연료분사 펌프에 있어서, 펌프 작업실(21), 펌프 피스톤(14), 펌프 작동실(21)에 접속가능한 연료통로(22) 및 연료 통로를 제어하는 전자밸브(38)를 가지고 있고, 펌프 작업실(21)내에 토출 종료의 후에 분사압력 보다도 적은 캠 전동장치(16)에서의 펌프 피스톤(14)의 들어올림을 억지하는 잔류 압력이 유지되도록 되어 있는 형식의 것에 있어서, 펌프 작업실(21)이 토출종료의 시점의 범위에서 감압통로(50)에 접속되어 있고, 이 감압 통로내에 압력유지 밸브(52)를 배치하고 있고, 이 압력 유지 밸브가 감압통로를 펌프 작업실(21)내의 분사압력 보다도 낮은 잔류 압력시에 개방하도록 되어 있다.
압력유지 밸브에 의해서 펌프 작업실내의 잔류 압력이 분사 압력보다도 하측에 유지되고, 전자 밸브가 다이나믹에 관하는 특별한 요구를 고려할 필요없이 충분히 활용된다.

Description

내연기관의 연료분사 펌프
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 연료분사 펌프의 제1 실시예의 종단면도.

Claims (6)

  1. 적어도 1개의 송출도관(32, 132)에 접속가능한 펌프 작업실(21, 121) 및 펌프 작업실을 제한하는 펌프 피스톤(14, 114)을 가지고 있고, 펌프 피스톤이 회전하는 구동축(17)에 의해 캠전동 장치(16)를 통해서 적어도 축선방향으로 행정운동 시작되고, 상기 행정 운동에 의해서 펌프 작업실(21, 121)내에 분사 압력이 형성하도록 되어있고, 펌프 작업실(21, 121)에 접속 가능한 연료통로(22, 122)를 가지고 있고, 상기 연료통로(22, 122)를 제어하는 전자밸브(38, 138)를 가지고 있고, 상기 전자 밸브가 펌프 피스톤(14, 114)의 토출행정시에 연료통로의 개방에 의해서 송출 종료를 규정하도록 되어 있고, 전자밸브(38, 138)의 제어를 위한 제어장치(46)를 가지고 있고, 펌프 작업실(21, 121)내에 송출 종료후에 분사압력 보다도 낮은 캠 전동장치(11)에서의 펌프 피스톤(14, 114)의 계속 작동을 방지하는 잔류 압력이 유지되도록 되어 있는 형식의 내연기관의 연료분사 펌프에 있어서, 펌프 작업실(21, 121)이 송출 종료의 시점의 범위에서 감압통로(50, 122)에 접속되어 있고, 상기 감압통로내의 압력 유지밸브(52, 152)를 배치하고 있고, 상기 압력유지 밸브가 감압통로(50, 122)를 펌프 작업실(21, 121)내의 분사압력 보다도 낮은 잔류 압력시에 개방하도록 되어 있는 것을 특징으로 하는 내연기관의 연료분사 펌프.
  2. 제1항에 있어서, 전자밸브(38)가 송출 종료후에 다시 폐쇄되도록 되어 있고, 펌프 피스톤(14)이 실린더 홀(13)내로 안내되어 있고, 실린더 홀(13)내의 펌프 피스톤(14)에 의해서 펌프 피스톤의 상사점에 도달하기전에 펌프 작업실(21)과 감압통로(50)의 접속부가 개방되도록 되어 있는 것을 특징으로 하는 내연기관의 연료분사 펌프.
  3. 제1항에 있어서, 펌프 작업실(21)과 감압통로(50)의 접속부가 전자밸브(38)를 송출 종료의 후에 다시 폐쇄하기전에 개방하도록 되어 있는 것을 특징으로 하는 내연기관의 연료분사 펌프.
  4. 제1항에 있어서, 연료통로(122)가 감압통로로써 사용되어 있고, 전자밸브(138)가 펌프 작업실(121)과 압력 유지밸브(152) 사이에 배치되어 있는 것을 특징으로 하는 내연기관의 연료분사 펌프.
  5. 제1항에 있어서, 펌프 작업실(121)이 펌프 피스톤(114)의 흡입 행정시에 연료로 충전되도록 되어 있고, 압력 유지밸브(152)에 대해서 병렬이고 펌프 작업실(121)을 향해서 개방역지밸브(154)가 배치되어 있는 것을 특징으로 하는 내연기관의 연료분사 펌프.
  6. 제1항 내지 제5항 중 어느 한 항에 있어서, 토출도관(32, 132)사이에 분사압력의 달성시에 개방 압력 밸브(33, 133)를 배치되어 있는 상기 압력 밸브가 항상 열려 있는 교축구멍(162)을 가지고 있는 것을 특징으로 하는 내연기관의 연료분사 펌프.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920021187A 1991-11-13 1992-11-12 내연기관의연료분사펌프 Expired - Fee Related KR100280059B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4137252A DE4137252A1 (de) 1991-11-13 1991-11-13 Kraftstoffeinspritzpumpe fuer brennkraftmaschinen
DEP4137252.2 1991-11-13

Publications (2)

Publication Number Publication Date
KR930010366A true KR930010366A (ko) 1993-06-22
KR100280059B1 KR100280059B1 (ko) 2001-10-22

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Application Number Title Priority Date Filing Date
KR1019920021187A Expired - Fee Related KR100280059B1 (ko) 1991-11-13 1992-11-12 내연기관의연료분사펌프

Country Status (5)

Country Link
JP (1) JPH05215031A (ko)
KR (1) KR100280059B1 (ko)
DE (1) DE4137252A1 (ko)
FR (1) FR2683595B1 (ko)
GB (1) GB2261475B (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2273320B (en) * 1992-12-08 1995-09-13 Lucas Ind Plc Fuel injection pump
AT2545U1 (de) * 1998-01-27 1998-12-28 Avl List Gmbh Kraftstoffeinspritzsystem für eine brennkraftmaschine
JP2015206266A (ja) * 2014-04-17 2015-11-19 株式会社デンソー 燃料供給制御装置
JP7212110B1 (ja) 2021-07-05 2023-01-24 ジック株式会社 形状プロファイル計測装置、及びシュリンク包装機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2258309C2 (de) * 1972-11-29 1987-05-14 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffverteilereinspritzpumpe für Brennkraftmaschinen
US4422424A (en) * 1981-06-23 1983-12-27 The Bendix Corporation Electronically controlled fuel injection pump
JPS5932633A (ja) * 1982-08-16 1984-02-22 Nissan Motor Co Ltd デイ−ゼル機関の燃料噴射制御装置
JPS5999060A (ja) * 1982-11-26 1984-06-07 Nissan Motor Co Ltd 燃料噴射ポンプの噴射率制御装置
DE3719831A1 (de) * 1987-06-13 1988-12-22 Bosch Gmbh Robert Kraftstoffeinspritzpumpe
DE3943245A1 (de) * 1989-12-29 1991-07-04 Bosch Gmbh Robert Kraftstoffeinspritzpumpe

Also Published As

Publication number Publication date
KR100280059B1 (ko) 2001-10-22
JPH05215031A (ja) 1993-08-24
GB9222775D0 (en) 1992-12-09
FR2683595A1 (fr) 1993-05-14
DE4137252A1 (de) 1993-05-19
FR2683595B1 (fr) 1994-04-01
GB2261475A (en) 1993-05-19
GB2261475B (en) 1995-02-22

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