GB1300133A - Improvements in fuel injection pumps for internal combustion engines - Google Patents

Improvements in fuel injection pumps for internal combustion engines

Info

Publication number
GB1300133A
GB1300133A GB9859/70A GB985970A GB1300133A GB 1300133 A GB1300133 A GB 1300133A GB 9859/70 A GB9859/70 A GB 9859/70A GB 985970 A GB985970 A GB 985970A GB 1300133 A GB1300133 A GB 1300133A
Authority
GB
United Kingdom
Prior art keywords
stem
fuel
segment
fuel injection
throttle
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
GB9859/70A
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 GB1300133A publication Critical patent/GB1300133A/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
    • 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
    • F02M41/123—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 characterised by means for varying fuel delivery or injection timing
    • F02M41/125—Variably-timed valves controlling fuel passages
    • F02M41/127—Variably-timed valves controlling fuel passages valves being fluid-actuated slide-valves, e.g. differential rotary-piston pump

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

1300133 Fuel injection pumps ROBERT BOSCH GmbH 2 March 1970 [28 Feb 1969] 9859/70 Heading F1A A fuel injection pump has a reciprocating and rotating pumping and distributing piston 3, and its delivery is regulated by a spill passage 14a, 14b controlled on the "hydraulic stop" principle by a slide valve 12 which is displaced against spring 26 by fuel from an auxiliary piston 15, the fuel returning through lines 22, 20 and via a temperature compensated variable throttle 23. The throttle cross-section may be varied by means of a threaded stem 25, or at a fixed setting of the stem, by expansion or contraction of a section 30 between the stem 25 and spool valve 24. Low temperature fuel supplied to the pump during starting causes contraction of 30 and opening of the throttle, thus delaying the "hydraulic stop" and allowing excess fuel to be delivered. In a further embodiment Fig.2 (not shown) the valve spool and stem are directly connected, and the stem attached to a segment of a disc. The disc is adjusted to cause axial movement of the stem via a pin or a further segment connecting the first segment via a thermally expansible segment.
GB9859/70A 1969-02-28 1970-03-02 Improvements in fuel injection pumps for internal combustion engines Expired GB1300133A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691910090 DE1910090A1 (en) 1969-02-28 1969-02-28 Fuel injection pump for internal combustion engines

Publications (1)

Publication Number Publication Date
GB1300133A true GB1300133A (en) 1972-12-20

Family

ID=5726598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9859/70A Expired GB1300133A (en) 1969-02-28 1970-03-02 Improvements in fuel injection pumps for internal combustion engines

Country Status (5)

Country Link
US (1) US3628892A (en)
AT (1) AT297406B (en)
DE (1) DE1910090A1 (en)
FR (1) FR2041058B1 (en)
GB (1) GB1300133A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5564460U (en) * 1978-10-27 1980-05-02
US4222713A (en) * 1979-05-29 1980-09-16 Caterpillar Tractor Co. Temperature responsive fuel compensator
DE3921244A1 (en) * 1989-06-29 1991-01-03 Kloeckner Humboldt Deutz Ag Cold start of IC engine - involves temp.-dependent memory element in injection pump to advance injection
FR2869370B1 (en) * 2004-04-23 2008-08-22 Mark Iv Systemes Moteurs Sa VARIABLE FLOW PUMP DEVICE
FI118055B (en) * 2005-11-23 2007-06-15 Waertsilae Finland Oy Piston engine injection pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980173A (en) * 1955-10-24 1961-04-18 Bendix Corp Starting control for gas turbine engines
US3082787A (en) * 1958-06-09 1963-03-26 Vickers Inc Thermal responsive throttle valve
US3096716A (en) * 1960-03-11 1963-07-09 Bosch Arma Corp Control rod for fuel injection pump
US3340893A (en) * 1964-11-20 1967-09-12 Heald Machine Co Throttle

Also Published As

Publication number Publication date
AT297406B (en) 1972-03-27
FR2041058B1 (en) 1976-02-20
DE1910090A1 (en) 1970-11-05
US3628892A (en) 1971-12-21
FR2041058A1 (en) 1971-01-29

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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