EP0180032A3 - Fuel injection pump for internal combustion engines - Google Patents

Fuel injection pump for internal combustion engines Download PDF

Info

Publication number
EP0180032A3
EP0180032A3 EP85111893A EP85111893A EP0180032A3 EP 0180032 A3 EP0180032 A3 EP 0180032A3 EP 85111893 A EP85111893 A EP 85111893A EP 85111893 A EP85111893 A EP 85111893A EP 0180032 A3 EP0180032 A3 EP 0180032A3
Authority
EP
European Patent Office
Prior art keywords
internal combustion
fuel injection
injection pump
spring unit
combustion engines
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.)
Withdrawn
Application number
EP85111893A
Other languages
German (de)
French (fr)
Other versions
EP0180032A2 (en
Inventor
Anton Karle
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 EP0180032A2 publication Critical patent/EP0180032A2/en
Publication of EP0180032A3 publication Critical patent/EP0180032A3/en
Withdrawn legal-status Critical Current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
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
    • F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
    • F02M41/12—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
    • F02M41/121—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor with piston arranged axially to driving shaft
    • 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

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

Es wird eine Kraftstoffeinspritzpumpe für Brennkraft­ maschinen angegeben, bei der ein Pumpenkolben (17) von einem Nockentrieb (12, 13) im Pumprichtung und wenig­ stens von einer Rückführfedereinheit (30) in Saugrichtung bewegt wird. Damit Schubspannungen der Schrauben­ druckfedern (35,36) der Federeinheit nicht durch sich in den Federn aufbauende Schwingungen eine unzulässige Höhe erreichen, umfaßt die Federeinheit zwei hintereinander ge­ schaltete Federn, von denen die eine stärker vorgespannt ist als die andere. It becomes a fuel injection pump for internal combustion machines specified, in which a pump piston (17) from a cam drive (12, 13) in the pump direction and little least of a return spring unit (30) in the suction direction is moved. So that shear stresses of the screws compression springs (35,36) of the spring unit not by themselves in the Vibrations that build up springs have an impermissible height reach, the spring unit comprises two ge in a row switched springs, one of which was more biased is than the other.

EP85111893A 1984-10-27 1985-09-20 Fuel injection pump for internal combustion engines Withdrawn EP0180032A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3439499 1984-10-27
DE19843439499 DE3439499A1 (en) 1984-10-27 1984-10-27 FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES

Publications (2)

Publication Number Publication Date
EP0180032A2 EP0180032A2 (en) 1986-05-07
EP0180032A3 true EP0180032A3 (en) 1987-08-26

Family

ID=6248985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111893A Withdrawn EP0180032A3 (en) 1984-10-27 1985-09-20 Fuel injection pump for internal combustion engines

Country Status (4)

Country Link
EP (1) EP0180032A3 (en)
JP (1) JPS61104159A (en)
BR (1) BR8505337A (en)
DE (1) DE3439499A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1143537A (en) * 1900-01-01
DE804874C (en) * 1949-08-30 1951-05-04 Becker & Van Huellen Spring loading with variable tension characteristics
DE2923423A1 (en) * 1979-06-09 1980-12-11 Bosch Gmbh Robert Fuel injection pump for IC engine - has two return springs in series, with spring plate between, to prevent resonant vibration of springs
DE3330353A1 (en) * 1983-08-23 1985-03-14 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection pump for internal combustion engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1143537A (en) * 1900-01-01
DE804874C (en) * 1949-08-30 1951-05-04 Becker & Van Huellen Spring loading with variable tension characteristics
DE2923423A1 (en) * 1979-06-09 1980-12-11 Bosch Gmbh Robert Fuel injection pump for IC engine - has two return springs in series, with spring plate between, to prevent resonant vibration of springs
DE3330353A1 (en) * 1983-08-23 1985-03-14 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection pump for internal combustion engines

Also Published As

Publication number Publication date
JPS61104159A (en) 1986-05-22
DE3439499A1 (en) 1986-05-07
EP0180032A2 (en) 1986-05-07
BR8505337A (en) 1986-08-05

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Effective date: 19880227

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Inventor name: KARLE, ANTON