DE3665903D1 - Fuel injection valve - Google Patents

Fuel injection valve

Info

Publication number
DE3665903D1
DE3665903D1 DE8686103736T DE3665903T DE3665903D1 DE 3665903 D1 DE3665903 D1 DE 3665903D1 DE 8686103736 T DE8686103736 T DE 8686103736T DE 3665903 T DE3665903 T DE 3665903T DE 3665903 D1 DE3665903 D1 DE 3665903D1
Authority
DE
Germany
Prior art keywords
chamber
needle
valve
seat
pressure
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
DE8686103736T
Other languages
German (de)
Inventor
Gerhard Dipl Ing Finsterwalder
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to DE8686103736T priority Critical patent/DE3665903D1/en
Application granted granted Critical
Publication of DE3665903D1 publication Critical patent/DE3665903D1/en
Expired 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/06—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves being furnished at seated ends with pintle or plug shaped extensions
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift

Abstract

1. A fuel injection valve for an internal combustion engine, the valve comprising a valve body (1) and an insert (2) in and along the axial extent of which a valve needle (3) is located, wherein the needle is arranged to rest at one of its axial end portions on a needle seat (5) and is actuatable - in the direction to the seat (5) - by a force originating from a force reservoir, wherein a discharge aperture in the form of at least one outlet (23) is arranged to be controlled by the needle (3), wherein fuel is arranged to be fed by a - separate - injection pump through ducts and channels (7, 8, 9, 10, 13, 20) to a first pressure chamber (11) at a pressure shoulder (12) on the needle (3) an onwards to a second pressure chamber (15), wherein the channel between the first pressure chamber (11) and the second chamber (15) is the sole feed channel to the second chamber (15) and includes an inset operable as a check valve, wherein the check valve (28) is arranged to open in the direction of flow to the second chamber and to block the flow in the opposite direction, and wherein the needle (3) is actuatable in the direction to the needle seat (5) by a force generated by the fuel pressure in the second chamber (15), characterized in that the channel between the first chamber (11) and the second chamber (15) has a first section extending from the first chamber (11) to the needle seat (5), a second - control - section linked to the needle seat (5) and a third section leading to the second chamber (15), that the second and third sections are connectable by at least one connecting aperture (21), and in that at least one outlet (23) in the insert (2) is located in the region of the needle seat and/or of the second section.
DE8686103736T 1985-03-20 1986-03-19 Fuel injection valve Expired DE3665903D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8686103736T DE3665903D1 (en) 1985-03-20 1986-03-19 Fuel injection valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853510075 DE3510075A1 (en) 1985-03-20 1985-03-20 FUEL INJECTION VALVE
DE8686103736T DE3665903D1 (en) 1985-03-20 1986-03-19 Fuel injection valve

Publications (1)

Publication Number Publication Date
DE3665903D1 true DE3665903D1 (en) 1989-11-02

Family

ID=6265811

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19853510075 Withdrawn DE3510075A1 (en) 1985-03-20 1985-03-20 FUEL INJECTION VALVE
DE8686103736T Expired DE3665903D1 (en) 1985-03-20 1986-03-19 Fuel injection valve

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19853510075 Withdrawn DE3510075A1 (en) 1985-03-20 1985-03-20 FUEL INJECTION VALVE

Country Status (3)

Country Link
EP (1) EP0195440B1 (en)
AT (1) ATE46744T1 (en)
DE (2) DE3510075A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203795A (en) * 1987-04-24 1988-10-26 Lucas Ind Plc I.C. engine fuel injection nozzle
US5645224A (en) * 1995-03-27 1997-07-08 Caterpillar Inc. Modulating flow diverter for a fuel injector
DE102019103511A1 (en) * 2019-02-12 2020-08-13 Liebherr-Components Deggendorf Gmbh Nozzle for a fuel injector

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759420C (en) * 1940-08-16 1953-11-16 Daimler Benz Ag Closed injection nozzle for internal combustion engines
DE875279C (en) * 1941-12-31 1953-04-30 Cav Ltd Fuel injection nozzle for internal combustion engines
DE967936C (en) * 1953-10-23 1957-12-27 Maschf Augsburg Nuernberg Ag Fuel injector
US2959360A (en) * 1957-09-20 1960-11-08 Alco Products Inc Fuel injectors
GB1412413A (en) * 1971-10-28 1975-11-05 Cav Ltd Liquid fuel injection systems
US4186884A (en) * 1978-01-11 1980-02-05 Lucas Industries Limited Liquid fuel injection nozzles
GB2012359B (en) * 1978-01-11 1982-05-06 Lucas Industries Ltd Fuel injection nozzle
DD153167A1 (en) * 1980-09-12 1981-12-23 Hans Gaertner MULTI-RAY DRAWER FOR DIRECT INJECTION OF INTERNAL COMBUSTION ENGINES
GB2129052B (en) * 1982-10-23 1986-01-29 Lucas Ind Plc Fuel injection nozzle for i c engines

Also Published As

Publication number Publication date
DE3510075A1 (en) 1986-09-25
EP0195440A3 (en) 1987-09-30
ATE46744T1 (en) 1989-10-15
EP0195440A2 (en) 1986-09-24
EP0195440B1 (en) 1989-09-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee