GB1361787A - Delivery valves of fuel injection pumps - Google Patents

Delivery valves of fuel injection pumps

Info

Publication number
GB1361787A
GB1361787A GB4526371A GB4526371A GB1361787A GB 1361787 A GB1361787 A GB 1361787A GB 4526371 A GB4526371 A GB 4526371A GB 4526371 A GB4526371 A GB 4526371A GB 1361787 A GB1361787 A GB 1361787A
Authority
GB
United Kingdom
Prior art keywords
valve
delivery
fuel injection
control member
sept
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
GB4526371A
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 GB1361787A publication Critical patent/GB1361787A/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
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/462—Delivery 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
    • 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
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/13—Special devices for making an explosive mixture; Fuel pumps
    • F02M2700/1317—Fuel pumpo for internal combustion engines

Landscapes

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

Abstract

1361787 Fuel injection pumps ROBERT BOSCH GmbH 29 Sept 1971 [30 Sept 1970] 45263/71 Heading F1A A delivery valve for a fuel injection pump comprises a spring loaded valve body 20 having a piston portion 39 for sucking back fuel from the injector line 28 during valve closure, and a profiled control member 40 which, during valve opening, enters a guide bore 32 progressively to throttle the flow therethrough with increasing valve lift. Whereas with a conventional valve the increased throttling of spillage from the pump working chamber 16 with increasing speed causes the delivery to increase, the throttling by the control member 40 of the present valve causes a reduction of the delivery with increasing speed. A throttle passage may be provided through the suck-back piston portion 39. The control member may be cylindrical with a ground inclined flat 41 or a truncated cone disposed with its base remote from the guide bore.
GB4526371A 1970-09-30 1971-09-29 Delivery valves of fuel injection pumps Expired GB1361787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702047990 DE2047990C3 (en) 1970-09-30 1970-09-30 Pressure valve for fuel injection pumps for internal combustion engines

Publications (1)

Publication Number Publication Date
GB1361787A true GB1361787A (en) 1974-07-30

Family

ID=5783758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4526371A Expired GB1361787A (en) 1970-09-30 1971-09-29 Delivery valves of fuel injection pumps

Country Status (4)

Country Link
AT (1) AT309149B (en)
DE (1) DE2047990C3 (en)
FR (1) FR2108749A5 (en)
GB (1) GB1361787A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843819A1 (en) * 1988-09-09 1990-03-22 Bosch Gmbh Robert PRESSURE VALVE
GB9305769D0 (en) * 1993-03-19 1993-05-05 Lucas Ind Plc Delivery valve

Also Published As

Publication number Publication date
DE2047990C3 (en) 1978-05-24
DE2047990A1 (en) 1972-04-06
AT309149B (en) 1973-08-10
FR2108749A5 (en) 1972-05-19
DE2047990B2 (en) 1977-09-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee