GB1439932A - Apparatus for testing fuel injector pumps - Google Patents

Apparatus for testing fuel injector pumps

Info

Publication number
GB1439932A
GB1439932A GB1642072A GB1642072A GB1439932A GB 1439932 A GB1439932 A GB 1439932A GB 1642072 A GB1642072 A GB 1642072A GB 1642072 A GB1642072 A GB 1642072A GB 1439932 A GB1439932 A GB 1439932A
Authority
GB
United Kingdom
Prior art keywords
pressure
fuel
injectors
testing
varying
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
GB1642072A
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.)
Leslie Hartridge Ltd
Original Assignee
Leslie Hartridge Ltd
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 Leslie Hartridge Ltd filed Critical Leslie Hartridge Ltd
Priority to GB1642072A priority Critical patent/GB1439932A/en
Publication of GB1439932A publication Critical patent/GB1439932A/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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift

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

1439932 Testing fuel injection pumps LESLIE HARTRIDGE Ltd 10 July 1973 [10 April 1972 23 March 1973] 16420/72 Headings F1A and F1B Fuel injection pump testing apparatus comprises a fuel supply line (52), Fig. 3 (not shown) connected to force-applying means 41, Fig. 2 for closing the valves of a number of fuel injectors, pressure-varying means (53) for varying the fluid supply pressure and means 45 to prevent or reduce interaction between fuel injectors so that the operation of one fuel injector does not affect the operation of the other fuel injectors. Varying the fluid supply pressure enables the nozzle opening pressure to be matched to the injection pump under test. Space 43, Fig. 2 is fed via restrictor 45 and the fluid-pressure variations acting on piston 41 vary the compression of spring 22 thereby varying the nozzle opening pressure. In modifications the restriction 45 is replaced by a plate valve 131, Fig. 6, or a ball non-return valve (138), Fig. 7 (not shown). In an application to testing a fuel injection installation in a two cylinder engine the supply lines to the fuel injectors have valved junctions 67, 68, Fig. 4 whereby the delivery from the fuel pump 60 to test injectors can be measured whilst either or both of the engine injectors 61, 62 are rendered inoperative. In apparatus for testing a pump feeding four injectors the injection shots are collected in chambers (142), Fig. 10 (not shown) and a screw ram (139) carrying a pressure gauge (140) is connected to control the nozzle opening pressures. Pressure gauge (140) has scales calibrated to indicate the nozzle opening pressure and the actual pressure in the chamber 135, Fig. 6.
GB1642072A 1972-04-10 1972-04-10 Apparatus for testing fuel injector pumps Expired GB1439932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1642072A GB1439932A (en) 1972-04-10 1972-04-10 Apparatus for testing fuel injector pumps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1642072A GB1439932A (en) 1972-04-10 1972-04-10 Apparatus for testing fuel injector pumps
GB1416173 1973-03-23

Publications (1)

Publication Number Publication Date
GB1439932A true GB1439932A (en) 1976-06-16

Family

ID=26250360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1642072A Expired GB1439932A (en) 1972-04-10 1972-04-10 Apparatus for testing fuel injector pumps

Country Status (1)

Country Link
GB (1) GB1439932A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994020750A1 (en) * 1993-03-05 1994-09-15 Lucas Industries Public Limited Company Fuel injection nozzle
EP0818623A1 (en) * 1996-07-13 1998-01-14 Lucas Industries Public Limited Company Injector
US6260404B1 (en) * 1998-01-20 2001-07-17 Mitsubishi Denki Kabushiki Kaisha Method for manufacturing a cylinder interior fuel injection valve and apparatus for adjusting a fuel injection amount used therefor
WO2004057181A1 (en) * 2002-12-20 2004-07-08 Volkswagen Mechatronic Gmbh & Co. Kg Pump-nozzle unit and method for regulating the opening pressure of the same
EP3418551A3 (en) * 2017-06-23 2019-01-02 Caterpillar Motoren GmbH & Co. KG Method to calibrate a fuel injection pump

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994020750A1 (en) * 1993-03-05 1994-09-15 Lucas Industries Public Limited Company Fuel injection nozzle
EP0818623A1 (en) * 1996-07-13 1998-01-14 Lucas Industries Public Limited Company Injector
US5913300A (en) * 1996-07-13 1999-06-22 Lucas Industries Plc Injector
US6260404B1 (en) * 1998-01-20 2001-07-17 Mitsubishi Denki Kabushiki Kaisha Method for manufacturing a cylinder interior fuel injection valve and apparatus for adjusting a fuel injection amount used therefor
WO2004057181A1 (en) * 2002-12-20 2004-07-08 Volkswagen Mechatronic Gmbh & Co. Kg Pump-nozzle unit and method for regulating the opening pressure of the same
EP3418551A3 (en) * 2017-06-23 2019-01-02 Caterpillar Motoren GmbH & Co. KG Method to calibrate a fuel injection pump

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee