GB1287492A - Improvements in or relating to fuel injection valves - Google Patents

Improvements in or relating to fuel injection valves

Info

Publication number
GB1287492A
GB1287492A GB7018/70A GB701870A GB1287492A GB 1287492 A GB1287492 A GB 1287492A GB 7018/70 A GB7018/70 A GB 7018/70A GB 701870 A GB701870 A GB 701870A GB 1287492 A GB1287492 A GB 1287492A
Authority
GB
United Kingdom
Prior art keywords
needle
valve
pistons
fuel
feb
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
GB7018/70A
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 GB1287492A publication Critical patent/GB1287492A/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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-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
    • F02M45/04—Fuel-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
    • F02M45/08—Injectors peculiar thereto

Abstract

1287492 I C engine fuel injectors ROBERT BOSCH GmbH 13 Feb 1970 [14 Feb 1969] 7018/70 Heading F1B Fuel pressure acting on a valve needle 8 and a pair of pistons 18 initially overcomes the closing force of a spring 10 to open the valve. When the needle 8 has lifted a distance Vh a shoulder on the needle blocks communication between the supply passage 14 and the pistons 18 and the needle achieves full lift Gh when the supply pressure acting on the needle alone has built up sufficiently. On valve closure fuel displaced by the pistons passes through a non-return valve 21. Fuel leakage into the spring chamber is discharged through the bore 23. The nozzle body 1 is located on the holder 4 by a pair of pins (24), Fig. 2 (not shown).
GB7018/70A 1969-02-14 1970-02-13 Improvements in or relating to fuel injection valves Expired GB1287492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1907340A DE1907340C3 (en) 1969-02-14 1969-02-14 Fuel injection nozzle for pilot and main injection in internal combustion engines

Publications (1)

Publication Number Publication Date
GB1287492A true GB1287492A (en) 1972-08-31

Family

ID=5725198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7018/70A Expired GB1287492A (en) 1969-02-14 1970-02-13 Improvements in or relating to fuel injection valves

Country Status (6)

Country Link
US (1) US3593924A (en)
AT (1) AT300468B (en)
DE (1) DE1907340C3 (en)
ES (1) ES376536A1 (en)
FR (1) FR2037378A5 (en)
GB (1) GB1287492A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119016A (en) * 1982-04-23 1983-11-09 Ambac Ind I.C. engine fuel injector
GB2129052A (en) * 1982-10-23 1984-05-10 Lucas Ind Plc Fuel injection nozzle for i c engines

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230337B (en) * 1965-10-19 1966-12-08 Rudolf Wolf Holding device for objects intended for painting, especially doors
DE2119973A1 (en) * 1971-04-23 1972-11-16 Robert Bosch Gmbh, 7000 Stuttgart Fuel injector
DE2349584C2 (en) * 1973-10-03 1984-08-23 Robert Bosch Gmbh, 7000 Stuttgart Electromagnetically actuated fuel injection valve for time-controlled low-pressure injection systems of internal combustion engines with manifold injection
DE2555019A1 (en) * 1975-12-06 1977-06-16 Bosch Gmbh Robert FUEL INJECTION VALVE FOR PRE AND MAIN INJECTION
ATE446478T1 (en) * 2006-02-22 2009-11-15 Tempratec Ltd DEVICE AND METHOD FOR BURNING A FUEL

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1771875A (en) * 1924-04-03 1930-07-29 Samuel P Cowardin Fuel atomizer
DE499937C (en) * 1926-09-30 1930-06-14 Prosper L Orange Dipl Ing Fluid-controlled fuel injector
US3115304A (en) * 1961-10-11 1963-12-24 Gen Motors Corp Fuel injector pump with hydraulically controlled injection valve
US3446440A (en) * 1967-06-14 1969-05-27 Int Harvester Co Double injection system with one nozzle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119016A (en) * 1982-04-23 1983-11-09 Ambac Ind I.C. engine fuel injector
GB2129052A (en) * 1982-10-23 1984-05-10 Lucas Ind Plc Fuel injection nozzle for i c engines

Also Published As

Publication number Publication date
FR2037378A5 (en) 1970-12-31
AT300468B (en) 1972-07-25
DE1907340B2 (en) 1977-11-24
ES376536A1 (en) 1972-04-16
US3593924A (en) 1971-07-20
DE1907340A1 (en) 1970-08-20
DE1907340C3 (en) 1978-07-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee