GB1232973A - - Google Patents

Info

Publication number
GB1232973A
GB1232973A GB2587967A GB1232973DA GB1232973A GB 1232973 A GB1232973 A GB 1232973A GB 2587967 A GB2587967 A GB 2587967A GB 1232973D A GB1232973D A GB 1232973DA GB 1232973 A GB1232973 A GB 1232973A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
port
passage
pressure
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
GB2587967A
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 filed Critical
Publication of GB1232973A publication Critical patent/GB1232973A/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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/16—Adjustment of injection timing
    • F02D1/18—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse
    • F02D1/183—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse hydraulic
    • 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
    • F02M41/14—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 rotary distributor supporting pump pistons
    • F02M41/1433—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 rotary distributor supporting pump pistons pistons being parallel to rotation axis
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive

Landscapes

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

Abstract

1,232,973. Fuel injection pumps; fuel injectors. BRITISH INTERNAL COMBUSTION ENGINE RESEARCH INSTITUTE Ltd. May 28, 1968 [June 5, 1967], No.25879/67. Headings F1A and F1B. A fuel injection pump piston 5 is connected to a piston 4 which is hydraulically actuated. The cylinders 6, 3 are formed in a cylindrical housing 1 which is rotated (as shown) in a casting 2 to act as a rotary valve or is surrounded by a rotary sleeve valve. The housing 1 has ports 8 which register in turn with a port 7 connected to a supply to actuating liquid which may include an accumulator and may be the feed pump (as shown) or a separate supply. Ports 9a, 10 and valve 11 control the fuel supply to the cylinder 6, the supply pressure also causing the return stroke of the pistons 5, 4. A port 12 distributes to outlets 13. The piston 5 has grooves 14, 16 and a passage 15 so that following closure of the port 12 by piston 5 the port is opened to a spill passage 19 connected through a controlled lift valve 21 to a throttle outlet passage 20. The return stroke of the piston 4 and hence the quantity of fuel delivered is regulated by a spring-loaded throttle valve 23, Fig.2, in a discharge port 22 to which the ports 8 open. Operation is controlled by a lever connected to a spindle having a segment 26 engaging the end of the valve 23 which may be forced against the idling stop 29 or completely closed. In a function embodiment Figs.6, 7 (not shown) a spaced control valve and a torque control valve automatically control the port 22 in response to pressure in the passage 20 which varies in accordance with speed. These valves may instead control the flow from the inlet 9 to the pump cylinder. Pressure liquid from the cylinder 6, after the outlet 12 is closed, is fed via passage 63 to a groove 54 which is opened to a port 51 which communicates in turn with pipes 49 leading to the injectors above the valves so that the pressure closes the valve. Subsequently the pipes 49 are relieved to the passage 20 through a valve 59. Two suitable injectors are described Figs.4, 5 (not shown). The timing of injection is controlled by a helical slot drive coupling controlled by a piston 67 having a relief groove 80 and subjected to the pressure in the passage 20. Leakage is discharged by the piston 4 through a valve 58.
GB2587967A 1967-06-05 1967-06-05 Expired GB1232973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2587967 1967-06-05

Publications (1)

Publication Number Publication Date
GB1232973A true GB1232973A (en) 1971-05-26

Family

ID=10234856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2587967A Expired GB1232973A (en) 1967-06-05 1967-06-05

Country Status (4)

Country Link
US (1) US3505984A (en)
DE (1) DE1751474A1 (en)
FR (1) FR1566995A (en)
GB (1) GB1232973A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146003A (en) * 1976-06-26 1979-03-27 Lucas Industries Limited Fuel injection pumping apparatus with drain passage

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908621A (en) * 1973-04-25 1975-09-30 Ambac Ind Hydraulically loaded injector nozzle
US4036192A (en) * 1974-02-08 1977-07-19 Diesel Kiki Co. Engine fuel injection system
US4033301A (en) * 1975-07-10 1977-07-05 Eaton Corporation Fluid distributor logic
US4033314A (en) * 1975-08-08 1977-07-05 Eaton Corporation Metering control
DE102012217991A1 (en) * 2012-10-02 2014-04-03 Continental Automotive Gmbh Nozzle assembly for a fluid injector and fluid injector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291939A (en) * 1937-08-25 1942-08-04 Amery George Pump and fuel injection control device
US2816533A (en) * 1943-01-20 1957-12-17 Reggio Ferdinando Carlo Fluid pump system
US2803234A (en) * 1952-11-24 1957-08-20 British Internat Comb Engine R Liquid fuel injection systems for internal combustion engines
US3058425A (en) * 1960-02-19 1962-10-16 Cav Ltd Liquid fuel pumps for internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146003A (en) * 1976-06-26 1979-03-27 Lucas Industries Limited Fuel injection pumping apparatus with drain passage

Also Published As

Publication number Publication date
FR1566995A (en) 1969-05-09
US3505984A (en) 1970-04-14
DE1751474A1 (en) 1970-11-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees