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JPS56106060A - Fuel injector for internal combustion engine - Google Patents

Fuel injector for internal combustion engine

Info

Publication number
JPS56106060A
JPS56106060A JP220681A JP220681A JPS56106060A JP S56106060 A JPS56106060 A JP S56106060A JP 220681 A JP220681 A JP 220681A JP 220681 A JP220681 A JP 220681A JP S56106060 A JPS56106060 A JP S56106060A
Authority
JP
Japan
Prior art keywords
control
pressure
valve
injection
lines
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP220681A
Other languages
Japanese (ja)
Other versions
JPH0346664B2 (en
Inventor
Ruburan Jiyan
Pijiyurure Jiyan
Shiyutorauberu Matsukusu
Etsukeruto Konraato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of JPS56106060A publication Critical patent/JPS56106060A/en
Publication of JPH0346664B2 publication Critical patent/JPH0346664B2/ja
Granted legal-status Critical Current

Links

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
    • 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
    • F02M59/361—Valves being actuated mechanically
    • F02M59/362—Rotary 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
    • 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
    • F02M59/365—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages valves being actuated by the fluid pressure produced in an auxiliary pump, e.g. pumps with differential pistons; Regulated pressure of supply pump actuating a metering valve, e.g. a sleeve surrounding the pump piston
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

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

Abstract

1. Fuel injection device for internal combustion machines, in particular for diesel engines, having, for each working cylinder, one mechanically driven pump piston (14a-14d; 14a'-14d') of an injection pump (12a-12d) supplied by a feed pump (33) with fuel under supply pressure, having, for each working cylinder, a control spool valve (24; 24') operable by the control pressure of a control fuel source (32) common to all the injection pumps, which control spool valve is inserted in a transfer duct (22) continually connected with the pump working space (18) and closes this duct for the initiation of the beginning of injection and opens it again for the termination of injection, and having a control device (48; 48'; 48") by means of which the control pressure can be switched via control lines (29) to the pressure spaces (28) of the control spool valves (24; 24'), characterised by the following features : a) the control fuel source (32) is formed by the feed pump (33) designed for a control pressure (ps ) increased by a multiple relative to the supply pressure (pv ) of the injection pumps (12a to 12d) and by a first pressure limiting valve (35) limiting the control pressure (ps ) in a control pressure line (31) which can be connected to the control lines (29) ; b) a second pressure limiting valve (37), which determines the supply pressure (pv ) occurring in the filling lines (21) separated from the control lines (29), is connected downstream of the first pressure limiting valve (35) ; c) the control device consists of a valve arrangement (36; 48; 48'; 48") determining in common for all the injection pumps (12a to 12d) the beginning and the duration of the period during which the pressure spaces (28) of the control spool valve (24; 24') are subjected to pressure and of a distributor device (43; 53) separate from this valve arrangement, by means of which distributor device one of the control lines (29) leading to the pressure spaces (28) of the control spool valves (24; 24') can be connected at a time, in synchronism with the injections, to the control pressure line (31) ; d) the control pressure (ps ) necessary for operating the control spool valve (24; 24') and to which one of the pressure spaces (28) at a time is subjected via the distributor device (43; 53) is built up by the valve arrangement (36; 48; 48'; 48") blocking the drainage of the control fuel from the control pressure line (31) into a low pressure line (19) and is released again to the low pressure line (19) for the return stroke of the control spool valve (24; 24').
JP220681A 1980-01-12 1981-01-12 Fuel injector for internal combustion engine Granted JPS56106060A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803001051 DE3001051A1 (en) 1980-01-12 1980-01-12 FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY FOR DIESEL ENGINES

Publications (2)

Publication Number Publication Date
JPS56106060A true JPS56106060A (en) 1981-08-24
JPH0346664B2 JPH0346664B2 (en) 1991-07-16

Family

ID=6091969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP220681A Granted JPS56106060A (en) 1980-01-12 1981-01-12 Fuel injector for internal combustion engine

Country Status (4)

Country Link
EP (1) EP0032168B1 (en)
JP (1) JPS56106060A (en)
AT (1) ATE10532T1 (en)
DE (2) DE3001051A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS588269A (en) * 1981-07-09 1983-01-18 Nippon Denso Co Ltd Control method of ignition timing in internal-combustion engine
JPH02291472A (en) * 1989-05-01 1990-12-03 Toyota Motor Corp Fuel supply/exhaust device for unit injector

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124500A1 (en) * 1981-06-23 1983-01-13 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION PUMP
FR2514827A1 (en) * 1981-10-15 1983-04-22 Renault PRESSURE-TIME INJECTION DEVICE WITH PREDOSAGE
DE4320620B4 (en) * 1993-06-22 2004-04-01 Robert Bosch Gmbh Fuel injection device for internal combustion engines
NL1014518C2 (en) * 2000-02-29 2001-08-30 Technoscan Engineering B V Device, fuel injection system and method for metering fuel.
CN108730085A (en) * 2017-04-14 2018-11-02 康明斯公司 Inexpensive common rail fuel system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE594336C (en) * 1930-12-22 1934-03-15 Magneti Marelli Spa Fuel injection pump
US2069744A (en) * 1932-01-16 1937-02-09 Ex Cell O Aircraft & Tool Corp Fluid distribution system
US2357563A (en) * 1942-07-23 1944-09-05 Gen Motors Corp Fuel injection pump
DE920881C (en) * 1949-03-05 1954-12-02 Daimler Benz Ag Fuel injection pump for internal combustion engines
US3486493A (en) * 1968-02-13 1969-12-30 Allis Chalmers Mfg Co Fuel injection unit
US3880131A (en) * 1973-06-28 1975-04-29 Bendix Corp Fuel injection system for an internal combustion engine
DE3000960A1 (en) * 1980-01-12 1981-09-10 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY FOR DIESEL ENGINES
DE3000977A1 (en) * 1980-01-12 1981-07-23 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY FOR DIESEL ENGINES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS588269A (en) * 1981-07-09 1983-01-18 Nippon Denso Co Ltd Control method of ignition timing in internal-combustion engine
JPH02291472A (en) * 1989-05-01 1990-12-03 Toyota Motor Corp Fuel supply/exhaust device for unit injector

Also Published As

Publication number Publication date
EP0032168B1 (en) 1984-11-28
ATE10532T1 (en) 1984-12-15
EP0032168A1 (en) 1981-07-22
JPH0346664B2 (en) 1991-07-16
DE3001051A1 (en) 1981-07-16
DE3069719D1 (en) 1985-01-10

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