GB751545A - Improvements relating to injection pumps for internal combustion engines - Google Patents

Improvements relating to injection pumps for internal combustion engines

Info

Publication number
GB751545A
GB751545A GB15803/54A GB1580354A GB751545A GB 751545 A GB751545 A GB 751545A GB 15803/54 A GB15803/54 A GB 15803/54A GB 1580354 A GB1580354 A GB 1580354A GB 751545 A GB751545 A GB 751545A
Authority
GB
United Kingdom
Prior art keywords
valve
cut
fuel
passage
restriction
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
GB15803/54A
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 GB751545A publication Critical patent/GB751545A/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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages

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

751,545. Fuel-injection pumps. BOSCH GES., R. May 28, 1954 [June 3, 1953], No. 15803/54. Class 102(1). A delivery valve for a fuel-injection pump comprises a movable valve member 8 having a cut-away portion 23 which co-operates with a cut-away portion 24 in the valve guide to form a restriction in the path of the fuel delivered past the seat 15 and through passages 19, 20 and 22 and influence the lift of the valve as the engine speed increases and permit an increasing quantity of fuel to escape through passage 25 to the pump inlet as the groove 18 registers with the passage 25 ; the restriction is varied by rotating the valve by the rod 13. To prevent drip at the nozzle, the delivery pipe may be unloaded by providing an overlap a of the surfaces separating the cut-away portions 23, 24 when the valve is closed and a by-pass, comprising a passage 31 and a restricted passage 32, to permit delivery of a small amount of fuel when the cut-away portions 23, 24 are not in register. Fig. 8 shows a modified construction in which the seat 35 is at the upper end of the valve member which has a cut-away portion 47 cooperating with the cut-away portion 42 in the valve guide to form the restriction and also with the passage 25 leading to the pump inlet. A piston surface 46 is provided on the valve member and fits closely the bore 2 to unload the delivery line. A flat 49 is provided at the lower part of the valve member and when the valve member is lifted, it forms a second restriction with the bore 7 to render the valve more sensitive.
GB15803/54A 1953-06-03 1954-05-28 Improvements relating to injection pumps for internal combustion engines Expired GB751545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE751545X 1953-06-03

Publications (1)

Publication Number Publication Date
GB751545A true GB751545A (en) 1956-06-27

Family

ID=6652179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15803/54A Expired GB751545A (en) 1953-06-03 1954-05-28 Improvements relating to injection pumps for internal combustion engines

Country Status (1)

Country Link
GB (1) GB751545A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880675A (en) * 1956-11-21 1959-04-07 Bessiere Pierre Etienne Reciprocating pumps in particular in fuel injection pumps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880675A (en) * 1956-11-21 1959-04-07 Bessiere Pierre Etienne Reciprocating pumps in particular in fuel injection pumps

Similar Documents

Publication Publication Date Title
GB912725A (en) Improvement in or relating to fuel injection pumps for internal combustion engines
IE34978B1 (en) Improvements in and relating to fuel injection valves for internal combustion engines
GB969181A (en) Improvements in or relating to internal combustion engines
GB751545A (en) Improvements relating to injection pumps for internal combustion engines
GB1156790A (en) Fuel Injection Systems for Internal Combustion Engines.
GB664884A (en) Improvements in fuel injection devices for internal combustion engines
GB744293A (en) Improvements in or relating to liquid fuel injection systems
GB1299473A (en) Improvements in or relating to fuel injection valves for internal combustion engines
GB782844A (en) Liquid fuel pumps for internal combustion engines
GB697616A (en) Regulating means for liquid fuel injection pumps for internal combustion engines
GB1034736A (en) Liquid fuel injection pumps for internal combustion engines
GB729763A (en) Improvements in surge reducing or pressure reducing valves for the fuel injection apparatus of internal combustion engines
GB1079591A (en) Improvements in fuel-injection pump delivery valves for internal combustion engines
GB722388A (en) Improvements in or relating to fuel injection pumps for internal combustion engines
GB938264A (en) Improvements in reciprocating action pumps for the injection of fuel into internal combustion engines
GB678887A (en) Liquid fuel injection pumps for internal combustion engines
GB944422A (en) Improvements to self-regulating reciprocating pumps
GB924681A (en) Improvements relating to self-regulating reciprocating fuel injection pumps for internal combustion engines
GB885297A (en) Improvements in self-regulating reciprocating piston pumps, in particular for the injection of fuel into internal combustion engines
GB890025A (en) Improvements in piston pumps, in particular for the injection of fuel into internal combustion engines
GB872054A (en) Improvements in reciprocating action pumps and in particular in fuel injection pumps for internal combustion engines
GB460763A (en) Improvements in or relating to fuel delivering devices and fuel injection pumps for internal combustion engines
GB732695A (en) Liquid fuel injection pumps for internal combustion engines
GB497297A (en) Injection devices for internal combustion engines
GB1292215A (en) Improvements in fuel injection pumps for internal combustion engines