GB1308810A - Fuel injection pump for internal combustion engines - Google Patents

Fuel injection pump for internal combustion engines

Info

Publication number
GB1308810A
GB1308810A GB4460970A GB4460970A GB1308810A GB 1308810 A GB1308810 A GB 1308810A GB 4460970 A GB4460970 A GB 4460970A GB 4460970 A GB4460970 A GB 4460970A GB 1308810 A GB1308810 A GB 1308810A
Authority
GB
United Kingdom
Prior art keywords
passage
piston
valve
occurs
spill
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
GB4460970A
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 GB1308810A publication Critical patent/GB1308810A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M41/00Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08Fuel-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
    • F02M41/10Fuel-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
    • F02M41/12Fuel-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
    • F02M41/123Fuel-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
    • F02M41/125Variably-timed valves controlling fuel passages
    • F02M41/127Variably-timed valves controlling fuel passages valves being fluid-actuated slide-valves, e.g. differential rotary-piston pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
    • F04B7/06Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports the pistons and cylinders being relatively reciprocated and rotated

Abstract

1308810 Fuel injection pumps ROBERT BOSCH GmbH 18 Sept 1970 [19 Sept 1969(2)] 44609/70 Heading F1A In a fuel injection pump in which the delivery is controlled by a spill valve 14 actuated by liquid delivered by an auxiliary piston 18 movable with the injection piston 2, the valve 14 controls connection between a spill passage 16a and two low-pressure passages 16b, 33. The passage 33 is connected to the spill passage 16a before the passage 16b, but the passage 33 is only open during part of the stroke of the pistons 2, 18. The closing of the passage 33 occurs when a groove 34 in the piston 2 no longer connects the two parts of the passage 33. In operation at full load, opening of the passage 33 only occurs after it has been previously closed by the piston 2, so that no spillage occurs through the passage 33. When "hydraulic stop" of the valve 14 occurs, as determined by the adjusted size of a variable orifice 31, the passage 33 is connected to the spill passage 16a and some fuel spills before the passage 33 is closed by the piston 2. Delivery then re-commences until the passage 16b is opened. Fuel spilling through the passage 33 may be controlled by a fixed throttle formed in the valve 14, Figs.4 and 5 (not shown) or by a needle valve in the passage 33, Fig.3 (not shown).
GB4460970A 1969-09-19 1970-09-18 Fuel injection pump for internal combustion engines Expired GB1308810A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1947528A DE1947528C3 (en) 1969-09-19 1969-09-19 Fuel injection pump for internal combustion engines
DE1947529A DE1947529C3 (en) 1969-09-19 1969-09-19 Fuel injection pump for internal combustion engines

Publications (1)

Publication Number Publication Date
GB1308810A true GB1308810A (en) 1973-03-07

Family

ID=25757917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4460970A Expired GB1308810A (en) 1969-09-19 1970-09-18 Fuel injection pump for internal combustion engines

Country Status (5)

Country Link
US (2) US3620647A (en)
AT (2) AT301953B (en)
DE (2) DE1947528C3 (en)
FR (2) FR2061388A5 (en)
GB (1) GB1308810A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2503346C2 (en) * 1975-01-28 1986-04-03 Robert Bosch Gmbh, 7000 Stuttgart Fuel distributor injection pump for internal combustion engines
US4062336A (en) * 1975-05-19 1977-12-13 Cummins Engine Company, Inc. Fuel control valve
DE2649893A1 (en) * 1976-10-29 1978-05-11 Bosch Gmbh Robert FUEL INJECTION PUMP
JPS53117126A (en) * 1977-03-22 1978-10-13 Diesel Kiki Co Ltd Fuel regulation device of stright line fuel injection pump
US4271808A (en) * 1978-01-20 1981-06-09 Diesel Kiki Co., Ltd. Fuel injection pump for internal combustion engines
DE3000977A1 (en) * 1980-01-12 1981-07-23 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY FOR DIESEL ENGINES
DE3024963A1 (en) * 1980-07-02 1982-01-28 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY FOR DIESEL ENGINES
US4387686A (en) * 1981-01-27 1983-06-14 Robert Bosch Gmbh Fuel injection apparatus for internal combustion engines, in particular for diesel engines
JPS6176727A (en) * 1984-09-23 1986-04-19 Diesel Kiki Co Ltd Injection ratio control device of fuel injection pump
DE19618707C2 (en) * 1996-05-09 1998-12-17 Siemens Ag Method and device for regulating a fuel volume flow
US6450778B1 (en) * 2000-12-07 2002-09-17 Diesel Technology Company Pump system with high pressure restriction
JP5501272B2 (en) * 2011-03-08 2014-05-21 日立オートモティブシステムズ株式会社 High pressure fuel supply pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1279359A (en) * 1960-11-07 1961-12-22 Improvements to self-regulating reciprocating pumps, in particular for fuel injection into engines
DE1249013B (en) * 1965-05-14 1967-08-31 Robert Bosch Gmbh, Stuttgart Fuel injection pump for internal combustion engines
FR1493671A (en) * 1966-07-19 1967-09-01 Bosch Gmbh Robert Improvements made to fuel injection pump flow regulation means

Also Published As

Publication number Publication date
FR2061460A5 (en) 1971-06-18
AT301952B (en) 1972-09-25
DE1947529B2 (en) 1978-10-05
DE1947529A1 (en) 1971-04-01
US3620647A (en) 1971-11-16
FR2061388A5 (en) 1971-06-18
US3620648A (en) 1971-11-16
DE1947528C3 (en) 1975-03-06
DE1947528A1 (en) 1971-04-01
AT301953B (en) 1972-09-25
DE1947528B2 (en) 1974-07-18
DE1947529C3 (en) 1979-06-13

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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