GB1125029A - Improvements in fuel injection valves for internal combustion engines - Google Patents

Improvements in fuel injection valves for internal combustion engines

Info

Publication number
GB1125029A
GB1125029A GB5785466A GB5785466A GB1125029A GB 1125029 A GB1125029 A GB 1125029A GB 5785466 A GB5785466 A GB 5785466A GB 5785466 A GB5785466 A GB 5785466A GB 1125029 A GB1125029 A GB 1125029A
Authority
GB
United Kingdom
Prior art keywords
valve
passage
fuel
injection
throttle
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.)
Expired
Application number
GB5785466A
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
Priority to DEB0085219 priority Critical
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1125029A publication Critical patent/GB1125029A/en
Expired legal-status Critical Current

Links

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
    • F02M45/00Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08Injectors peculiar thereto
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86493Multi-way valve unit
    • Y10T137/86718Dividing into parallel flow paths with recombining
    • Y10T137/86759Reciprocating
    • Y10T137/86791Piston
    • Y10T137/86799With internal flow passage

Abstract

1, 125, 029. Fuel injectors. ROBERT BOSCH G.m.b.H. Dec.28, 1966 [Dec. 31, 1965], No.57854/66. Heading F1B. A fuel injector adapted to produce a preinjection and a main injection comprises a spring- loaded slide valve 16 controlling a main passage 23 to the delivery passage 24 and an additional passage 26. At the beginning of injection passage 23 is closed and 26 is opened so pre-injection occurs until valve 16 has moved distance b when both passages are closed and injection is interrupted. After further travel of valve 16 to the right passage 23 is opened and main injection occurs. Space 15 behind valve 16 is connected through throttle 27 to the leakage fuel chamber 2b, whereby the movement of valve 16 to the right is retarded by the rate at which fuel can be forced through throttle 27. Rapid return of valve 16 to the left is ensured by non-return valve 29 which opens to allow fuel to flow rapidly from chamber 2b to space 15.
GB5785466A 1965-12-31 1966-12-28 Improvements in fuel injection valves for internal combustion engines Expired GB1125029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB0085219 1965-12-31

Publications (1)

Publication Number Publication Date
GB1125029A true GB1125029A (en) 1968-08-28

Family

ID=6982811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5785466A Expired GB1125029A (en) 1965-12-31 1966-12-28 Improvements in fuel injection valves for internal combustion engines

Country Status (4)

Country Link
US (1) US3394891A (en)
AT (1) AT276866B (en)
FR (1) FR1505156A (en)
GB (1) GB1125029A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572124A (en) * 1983-10-01 1986-02-25 Lucas Industries Public Limited Company Pilot injection device

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1190919A (en) * 1966-11-11 1970-05-06 Cav Ltd Liquid Fuel Supply Systems for Internal Combustion Engines
DE1808650A1 (en) * 1968-11-13 1970-06-18 Bosch Gmbh Robert Fuel injector
FR2093250A5 (en) * 1970-06-08 1972-01-28 Peugeot
DE2500644C2 (en) * 1975-01-09 1988-07-07 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln, De
DE2509068C2 (en) * 1975-03-01 1989-05-24 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De
ES477347A1 (en) * 1978-03-21 1979-10-16 Lucas Industries Ltd Fuel system for an engine of internal combustion policilindrico.
DE2834633C2 (en) * 1978-08-08 1987-05-14 Robert Bosch Gmbh, 7000 Stuttgart, De
DE2836961A1 (en) * 1978-08-24 1980-03-13 Daimler Benz Ag Fuel injection pump for air compressing injection combustion engines
DE2911447A1 (en) * 1979-03-23 1980-09-25 Daimler Benz Ag Controlling the fuel flow control unit for injection devices in particular air compressing engines
DE3330774A1 (en) * 1983-08-26 1985-03-14 Bosch Gmbh Robert Fuel injection device with primary and main injection in internal combustion engines
DE3330771A1 (en) * 1983-08-26 1985-03-14 Bosch Gmbh Robert Fuel injection device with auxiliary pump for prime and main injection
DE3425460A1 (en) * 1983-08-26 1985-03-07 Bosch Gmbh Robert Fuel injection device for defined preliminary and main injection in internal combustion engines
DE3629754C2 (en) * 1986-09-01 1994-07-14 Bosch Gmbh Robert Device for generating pilot injections in pump nozzles
FI80327C (en) * 1988-05-16 1990-05-10 Waertsilae Oy Ab Distribution and control valve for fuel injection pump
US5012785A (en) * 1989-06-28 1991-05-07 General Motors Corporation Fuel injection delivery valve with reverse flow venting
GB9121592D0 (en) * 1991-10-11 1991-11-27 Ricardo Consulting Eng Fuel injectors for diesel engines
US6109536A (en) * 1998-05-14 2000-08-29 Caterpillar Inc. Fuel injection system with cyclic intermittent spray from nozzle
DE10022421A1 (en) * 2000-05-09 2001-11-15 Bosch Gmbh Robert Pre-injection valve for controlling the fuel flow of a fuel injector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368761A (en) * 1965-10-15 1968-02-13 Mack Trucks Variable flow rate fuel injection nozzle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572124A (en) * 1983-10-01 1986-02-25 Lucas Industries Public Limited Company Pilot injection device

Also Published As

Publication number Publication date
US3394891A (en) 1968-07-30
AT276866B (en) 1969-12-10
FR1505156A (en) 1967-12-08

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