KR970016095A - Fuel injection pump - Google Patents

Fuel injection pump Download PDF

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Publication number
KR970016095A
KR970016095A KR1019960039224A KR19960039224A KR970016095A KR 970016095 A KR970016095 A KR 970016095A KR 1019960039224 A KR1019960039224 A KR 1019960039224A KR 19960039224 A KR19960039224 A KR 19960039224A KR 970016095 A KR970016095 A KR 970016095A
Authority
KR
South Korea
Prior art keywords
rotor
fuel injection
injection pump
communication
electromagnetic valve
Prior art date
Application number
KR1019960039224A
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Korean (ko)
Other versions
KR100222654B1 (en
Inventor
도루 요꼬다
Original Assignee
오타 유다카
가부시키가이샤 제쿠세루
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Publication of KR970016095A publication Critical patent/KR970016095A/en
Application granted granted Critical
Publication of KR100222654B1 publication Critical patent/KR100222654B1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M41/00Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08Fuel-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
    • F02M41/14Fuel-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 rotary distributor supporting pump pistons
    • F02M41/1405Fuel-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 rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis
    • F02M41/1411Fuel-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 rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis characterised by means for varying fuel delivery or injection timing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44Details, 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
    • F02M59/46Valves
    • F02M59/466Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means

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

Abstract

로우터(3)의 유출입구(16)과 연료연소실(6)과의 연통을 개재하여 연료를 작동실(10)으로 도입하는 연료분사펌프(1)에 있어서 실질상의 데드보륨을 작게함과 동시에 소음의 적감을 도모한다. 전자변(26)을 펌프하우징(2a,2b,2c)내에 수납하고 전자변(26)의 변체(27)을 로우터(3)의 아암에 당해 로우터(3)의 축방향과 직각방향으로 접동하도록 배치한다. 변체(27)과 로우터(3)고의 근접부분은 유출입구(16)과 연료연소실(6)을 연통하는 연통로의 일부를 구성하는 접속구멍(20)에서 연통되어 있으며, 전자변(26)은 접속구멍(20)의 근방에 있어서, 변체(27)를 받는 변좌(31)를 가지고 있다. 변좌(31)에서 작동실(10)까지의 거리를 짧게 할 수 있어서, 전자변(26)을 하우징(2a,2b,2c)를 덥허세우는 것으로서 전자변(26)의 작동음을 외부에 전달을 차단시킨다.In the fuel injection pump 1 which introduces fuel into the operation chamber 10 via the communication between the outlet inlet 16 of the rotor 3 and the fuel combustion chamber 6, the actual dead volume is reduced and noise is reduced. To promote a sense of The electromagnetic valve 26 is accommodated in the pump housings 2a, 2b, and 2c, and the variant 27 of the electromagnetic valve 26 is arranged on the arm of the rotor 3 so as to slide in a direction perpendicular to the axial direction of the rotor 3. . The proximal portion between the deformed body 27 and the rotor 3 communicates with the connection hole 20 constituting a part of the communication path communicating with the outlet inlet 16 and the fuel combustion chamber 6, and the electromagnetic valve 26 is In the vicinity of the connection hole 20, it has a toilet seat 31 that receives the deformable body 27. The distance from the toilet seat 31 to the operation chamber 10 can be shortened, so that the operation sound of the electromagnetic valve 26 is cut off to the outside by heating the electronic valve 26 to the housings 2a, 2b, and 2c. .

Description

연료분사펌프Fuel injection pump

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 관한 연료분사펌프의 예를 나타내는 개략 단면도,1 is a schematic cross-sectional view showing an example of a fuel injection pump according to the present invention;

제2도는 제1도에 나타낸 연료분사펌프의 전자변의 부분에서 절단한 단면도,FIG. 2 is a cross-sectional view taken along a portion of the electron valve of the fuel injection pump shown in FIG. 1;

제3도는 제2도의 요부를 확대한 단면도.3 is an enlarged cross-sectional view of the main portion of FIG.

Claims (7)

펌프하우징(2a,2b,2c) 내의 부동부재(7)에 대하여 회전자재 하도록 배설되고, 작동실(10)에 통하는 통로(15)와 이 통로(15)에 접속하는 유출입구(16) 및 분배구(17)이 형성되어 있는 로우터(3)과 상기 부동부재(7)에 형성되어 상기 로우터(3)의 유출입구(16)과 연료연실(6)을 연통하는 연통로(25,24,19,20,18)와 이 연통로(25,24,19,20,18)를 개폐하는 하나의 전자변(26)을 갖추고, 상기 전자변(26)은 상기 펌프 하우징(2a,2b,2c)내에 수납되어 있는 연료분사펌프에 있어서, 상기 전자변(26)의 변체(27)는 상기 로우터(3)의 아암을 당해 로우터(3)의 축방향과 상이하는 방향으로 접동하도록 배치되고 상기 변체(17)과 상기 로우터(3)과의 근접부분은 상기 연통로(25,24,19,20,18)의 일부를 이루는 유로 상기 연통로(25,24,19,20,18)의 일부를 이루는 유로(20)에서 서로 연통되고 있으며, 상기 전자변(26)은 이 유로(20)에서 서로 연통되어 있으며 상기 전자변(26)은 이유로(20)의 근방에 있어서 상기 변체(27)을 받는 변좌(31)을 가지고 있으며 상기 연통로(24,25,19,20,18)을 개폐하도록 되어 있는 것을 특징으로 하는 연료분사펌프.It is disposed so as to be rotatable with respect to the floating member 7 in the pump housings 2a, 2b, and 2c, and the passage 15 through the operating chamber 10 and the outlet inlet 16 and the minute connected to the passage 15 are provided. Communication paths 25, 24, and 19 formed in the rotor 3 and the floating member 7 in which the volleyball 17 is formed, and communicate with the outlet 16 of the rotor 3 and the fuel chamber 6, respectively. , 20, 18 and one electromagnetic valve 26 for opening and closing the communication paths 25, 24, 19, 20, and 18, and the electromagnetic valve 26 is accommodated in the pump housings 2a, 2b, and 2c. In the fuel injection pump, the deformable body 27 of the electromagnetic valve 26 is arranged to slide the arm of the rotor 3 in a direction different from the axial direction of the rotor 3 and the deformable body 17. A portion adjacent to the rotor 3 is a flow path forming part of the communication paths 25, 24, 19, 20 and 18, and a flow path 20 forming a part of the communication path 25, 24, 19, 20, and 18. Are in communication with each other, and the electron valve 26 ) Is in communication with each other in the flow path 20 and the electromagnetic valve 26 has a toilet seat 31 receiving the deformable 27 in the vicinity of the reason (20) and the communication path (24, 25, 19, 20, 18) fuel injection pump characterized in that the opening and closing. 제1항에 있어서, 전자변의 변체(27)은 로우터(3)의 축방향과 직각 방향으로 배치되는 것을 특징으로 하는 연료분사펌프.The fuel injection pump according to claim 1, characterized in that the transformer (27) of the electron valve is disposed in a direction perpendicular to the axial direction of the rotor (3). 제1항에 있어서, 부동부재(7)에는 상기 로우터(3)의 주위에 상기 유출입구(16)과 연통가능한 편심홈(18)이 형성됨과 동시에 상기 변체(27)을 배치하기 위한 안내구멍(19)이 형성되고, 상기 편심홈(18)과 안내구멍(19)이 대략 최단거리에서 상기 유로(20)에서 연통되어 있는 것을 특징으로 하는 연료분사펌프.According to claim 1, Floating member (7) is formed in the circumference of the rotor 3, the eccentric groove (18) which is in communication with the outlet opening 16, and at the same time guide holes for arranging the deformed 27 ( 19) is formed, and the eccentric groove (18) and the guide hole (19) are communicated in the flow path (20) at the shortest distance. 제1항에 있어서, 연통로(25,24,19,20,18)은 상기 로우터(3)의 둘레 방향을 따라서 상기 유출입구(16)과 연통가능한 편심홈(18) 상기 변체(27)를 배치하는 안내구멍(19) 상기 편심홈(18)과 상기 안내공(19)를 접속하는 유로(20) 상기 변체(27)에 직렬되는 아마튜어(21)을 수납하는 아마튜어 수납부분(24) 및 상기 연료연소실(6)과 상기 아마튜어 수납부분(24)을 접속하는 통로(25)에 의하여 구성되는 것을 특징으로 하는 연료분사펌프.The communication path (25, 24, 19, 20, 18) of claim 1, wherein the eccentric groove (18) and the deformable (27) communicate with the outlet inlet 16 along the circumferential direction of the rotor (3). Amateur accommodating portion 24 for accommodating the guide hole 19 to be arranged to accommodate the eccentric groove 18 and the flow path 20 for connecting the guide hole 19 and the amateur 21 in series with the deformable body 27. And a passage (25) connecting the fuel combustion chamber (6) and the armature receiving portion (24). 제3항의 변좌(31)는 상기 안내구멍(19)의 상기 유로(20)과 아마튜어 수납부분(24)와의 사이에 설치되는 것을 특징으로 하는 연료분사펌프.The fuel injection pump according to claim 3, wherein the toilet seat (31) is provided between the flow path (20) of the guide hole (19) and the armature receiving portion (24). 제1항 또는 제2항에 있어서, 작동실(10)은 로우터(3)에 설치되어서, 상기 로우터(3)에 작동실(10)에서 지름 방향으로 뻗는 복수의 플런저 통로(8)을 설치하고, 상기 플런저 통로(8)의 각각에 플런저(9)를 접동자재되도록 배설하여 상기 로우터(3)의 주위에 설치된 인너캠(13)에 의하여 상기 플런저(9)를 로우터(3)의 지름방향으로 왕복운동시키도록 만들어진 것을 특징으로 하는 연료분사펌프.The operating chamber (10) according to any one of the preceding claims, wherein the operating chamber (10) is provided in the rotor (3) so that the rotor (3) is provided with a plurality of plunger passages (8) extending radially from the operating chamber (10). The plunger 9 is arranged in the radial direction of the rotor 3 by an inner cam 13 installed around the rotor 3 so as to slide the plunger 9 in each of the plunger passages 8. A fuel injection pump, characterized in that made to reciprocate. 제1항, 2항 또는 제3항에 있어서, 전자변(26)은 전자력을 발생시키는 솔레노이드부(22)가 상기 연료연소실(6)에 표출하도록 배설되어 있는 것을 특징으로 하는 연료분사펌프.The fuel injection pump according to claim 1, 2 or 3, wherein the solenoid valve (26) is arranged so that a solenoid portion (22) generating an electromagnetic force is displayed in the fuel combustion chamber (6). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960039224A 1995-09-11 1996-09-11 Fuel injection pump KR100222654B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7258164A JPH0979102A (en) 1995-09-11 1995-09-11 Fuel injection pump
JP95-258164 1995-09-11

Publications (2)

Publication Number Publication Date
KR970016095A true KR970016095A (en) 1997-04-28
KR100222654B1 KR100222654B1 (en) 1999-10-01

Family

ID=17316427

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960039224A KR100222654B1 (en) 1995-09-11 1996-09-11 Fuel injection pump

Country Status (3)

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EP (1) EP0761960A1 (en)
JP (1) JPH0979102A (en)
KR (1) KR100222654B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5382870B2 (en) * 2009-12-18 2014-01-08 ボッシュ株式会社 Control device and control method for accumulator fuel injector and accumulator fuel injector

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1917927A1 (en) * 1969-04-09 1970-10-29 Bosch Gmbh Robert Fuel injection pump for internal combustion engines
JPS58133468A (en) * 1982-02-03 1983-08-09 Hitachi Ltd Liquid fuel injection pump
JPS60162267U (en) * 1984-04-05 1985-10-28 株式会社ボッシュオートモーティブ システム distribution type fuel injection pump
JPS60228733A (en) * 1984-04-25 1985-11-14 Hitachi Ltd Speedily operated electromagnetic metering valve
US5099814A (en) * 1989-11-20 1992-03-31 General Motors Corporation Fuel distributing and injector pump with electronic control
GB9203636D0 (en) * 1992-02-19 1992-04-08 Lucas Ind Plc Fuel pumping apparatus

Also Published As

Publication number Publication date
EP0761960A1 (en) 1997-03-12
KR100222654B1 (en) 1999-10-01
JPH0979102A (en) 1997-03-25

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