GB2004588A – A fuel injection system for an internal combustion engine
– Google Patents
GB2004588A – A fuel injection system for an internal combustion engine
– Google Patents
A fuel injection system for an internal combustion engine
Info
Publication number
GB2004588A
GB2004588A
GB7837805A
GB7837805A
GB2004588A
GB 2004588 A
GB2004588 A
GB 2004588A
GB 7837805 A
GB7837805 A
GB 7837805A
GB 7837805 A
GB7837805 A
GB 7837805A
GB 2004588 A
GB2004588 A
GB 2004588A
Authority
GB
United Kingdom
Prior art keywords
fuel
valve
pump
needle
spring
Prior art date
1977-09-23
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
GB7837805A
Other versions
GB2004588B
(en
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.)
1977-09-23
Filing date
1978-09-22
Publication date
1979-04-04
1978-09-22
Application filed by Kloeckner Humboldt Deutz AG
filed
Critical
Kloeckner Humboldt Deutz AG
1979-04-04
Publication of GB2004588A
publication
Critical
patent/GB2004588A/en
1982-08-25
Application granted
granted
Critical
1982-08-25
Publication of GB2004588B
publication
Critical
patent/GB2004588B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
F02M55/002—Arrangement of leakage or drain conduits in or from injectors
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
F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
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
The system comprises a regulatable fuel injection pump 2, a fuel injection valve 9 including a valve needle 12 biased by a spring 13 into its valve- closing position. The spring and one end of the needle are housed in a chamber 14 of the valve. In order to accelerate valve closure after each injection and to prevent fuel from dribbling, the spring-biased end of the needle is arranged to operate as a hydraulic piston intermittently acted upon by pressure of fuel delivered to this end by another fuel pump 4 connected to the injection pump 2 via a timing device 3 regulating the intermittent operation of the other pump 4 in such a way that it will deliver the fuel at a variable interval after the fuel delivery by the pump. The additional closing pressure thus exerted on the valve needle will slowly be reduced again by letting the fuel used for this purpose leak through a pressure-reducing passage 20 in a leak-fuel duct 19 back into a fuel reservoir 7.
GB7837805A
1977-09-23
1978-09-22
Fuel injection system
Expired
GB2004588B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE19772742870
DE2742870C2
(en)
1977-09-23
1977-09-23
Fuel injector
Publications (2)
Publication Number
Publication Date
GB2004588A
true
GB2004588A
(en)
1979-04-04
GB2004588B
GB2004588B
(en)
1982-08-25
Family
ID=6019730
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7837805A
Expired
GB2004588B
(en)
1977-09-23
1978-09-22
Fuel injection system
Country Status (3)
Country
Link
DE
(1)
DE2742870C2
(en)
FR
(1)
FR2423649A1
(en)
GB
(1)
GB2004588B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0269289A2
(en)
*
1986-11-28
1988-06-01
Diesel Technology Corporation
Diesel unit fuel injector with spill assist injection needle valve closure
EP0441738A2
(en)
*
1990-02-07
1991-08-14
Ail Corporation
High pressure fuel injection system
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DK174240B1
(en)
*
1994-03-08
2002-10-14
Man B & W Diesel As
Fuel valve and high pressure gas engine with such a valve
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3810453A
(en)
*
1971-10-18
1974-05-14
G Wolfe
Fuel injection system
US4036192A
(en)
*
1974-02-08
1977-07-19
Diesel Kiki Co.
Engine fuel injection system
DE2500644C2
(en)
*
1975-01-09
1988-07-07
Klöckner-Humboldt-Deutz AG, 5000 Köln
Fuel injection valve for internal combustion engines
DE2558790A1
(en)
*
1975-12-24
1977-07-14
Bosch Gmbh Robert
FUEL INJECTION NOZZLE FOR COMBUSTION MACHINES
1977
1977-09-23
DE
DE19772742870
patent/DE2742870C2/en
not_active
Expired
1978
1978-09-22
GB
GB7837805A
patent/GB2004588B/en
not_active
Expired
1978-09-22
FR
FR7827211A
patent/FR2423649A1/en
active
Pending
Cited By (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0269289A2
(en)
*
1986-11-28
1988-06-01
Diesel Technology Corporation
Diesel unit fuel injector with spill assist injection needle valve closure
EP0269289A3
(en)
*
1986-11-28
1989-02-01
Diesel Technology Corporation
Diesel unit fuel injector with spill assist injection needle valve closure
EP0441738A2
(en)
*
1990-02-07
1991-08-14
Ail Corporation
High pressure fuel injection system
EP0441738A3
(en)
*
1990-02-07
1991-12-18
Ail Corporation
High pressure fuel injection system
Also Published As
Publication number
Publication date
DE2742870B1
(en)
1979-03-22
GB2004588B
(en)
1982-08-25
DE2742870C2
(en)
1979-11-15
FR2423649A1
(en)
1979-11-16
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Legal Events
Date
Code
Title
Description
1990-05-16
PCNP
Patent ceased through non-payment of renewal fee
