GB1470373A - Fuel injector - Google Patents

Fuel injector

Info

Publication number
GB1470373A
GB1470373A GB3126273A GB3126273A GB1470373A GB 1470373 A GB1470373 A GB 1470373A GB 3126273 A GB3126273 A GB 3126273A GB 3126273 A GB3126273 A GB 3126273A GB 1470373 A GB1470373 A GB 1470373A
Authority
GB
United Kingdom
Prior art keywords
fuel
plunger
chamber
valve element
spring
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
GB3126273A
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.)
Rover Co Ltd
Original Assignee
Rover Co 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 Rover Co Ltd filed Critical Rover Co Ltd
Priority to GB3126273A priority Critical patent/GB1470373A/en
Priority to FR7422614A priority patent/FR2235289B1/fr
Priority to US484111A priority patent/US3892362A/en
Priority to DE2431172A priority patent/DE2431172A1/en
Priority to JP49074904A priority patent/JPS50106029A/ja
Publication of GB1470373A publication Critical patent/GB1470373A/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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
    • F02M51/066—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/04—Pumps peculiar thereto
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • 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
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages

Landscapes

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

Abstract

1470373 Liquid fuel injector; fuel injection pumps BRITISH LEYLAND UK Ltd 12 June 1974 [30 June 1973] 31262/73 Heading F1A and F1B A fuel injector assembly comprises a valve element 16 having a co-axial bore within which a plunger 18 is slidable, the motion of the plunger acting to increase the pressure within an annular chamber 15, the result of which is upward movement of valve element 16 and flow of fuel through a nozzle 13. A passage 47 in plunger 18 is closed by a non return valve consisting of a ball 51 and spring 49 contained in a chamber 40 within valve element 16, the passage communicating with a fuel inlet 12 via a cross boring 48 and annular channel 42. The lower portion of valve element 16 is tapered producing a conical surface 46 ending in a pintle shaped tip 45 held resiliently in contact with the nozzle 13 by a spring washer 44. Fuel is supplied to the assembly under pressure sufficient to overcome the tension in spring 49, the fuel entering chambers 40 and 15 which communicate via passages 41. After the chambers are filled, plunger 18 is caused by the action of a solenoid 50 to descend thereby increasing the pressure within chambers 40 and 15; the pressure within chamber 15 acts upon conical surface 46 to force valve element 16 upward against the tension in spring washer 44 enabling fuel to be injected through nozzle 13 and into a combustion chamber, the quantity of fuel injected being dependent upon the stroke of plunger 18. In a second embodiment Fig. 3 (not shown), the annular chamber 15 is linked directly with the inlet 12 which contains a non return valve allowing pressurized fuel to flow into the chamber whilst preventing the escape of fuel through the inlet 12 as plunger 18 descends. In a third embodiment, Fig. 1 (not shown) the ball 48 and spring 49 are replaced by a solenoid operated valve. In this embodiment, the stroke of plunger 18 is constant, the metering of fuel being governed by the duration for which the solenoid operated valve is held open.
GB3126273A 1973-06-30 1973-06-30 Fuel injector Expired GB1470373A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB3126273A GB1470373A (en) 1973-06-30 1973-06-30 Fuel injector
FR7422614A FR2235289B1 (en) 1973-06-30 1974-06-28
US484111A US3892362A (en) 1973-06-30 1974-06-28 Fuel injector
DE2431172A DE2431172A1 (en) 1973-06-30 1974-06-28 INJECTION NOZZLE
JP49074904A JPS50106029A (en) 1973-06-30 1974-06-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3126273A GB1470373A (en) 1973-06-30 1973-06-30 Fuel injector

Publications (1)

Publication Number Publication Date
GB1470373A true GB1470373A (en) 1977-04-14

Family

ID=10320478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3126273A Expired GB1470373A (en) 1973-06-30 1973-06-30 Fuel injector

Country Status (5)

Country Link
US (1) US3892362A (en)
JP (1) JPS50106029A (en)
DE (1) DE2431172A1 (en)
FR (1) FR2235289B1 (en)
GB (1) GB1470373A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223804A (en) * 1988-10-13 1990-04-18 Volkswagen Ag I.C. engine fuel injection pump and nozzle
WO2013019141A1 (en) * 2011-08-03 2013-02-07 Zuev Boris Konstantinovich Shut-off spray-nozzle unit

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51125160A (en) * 1974-06-27 1976-11-01 Saito Kouki Kk Automatically opening or closing valve gate for plastic injection molding
AT378242B (en) * 1981-07-31 1985-07-10 Berchtold Max Prof FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY DIESEL ENGINES
EP0166730A1 (en) * 1983-04-18 1986-01-08 Medepe Pty. Ltd. Apparatus for generating pulsations in a flowing liquid
DE3418761A1 (en) * 1984-05-19 1985-11-21 Robert Bosch Gmbh, 7000 Stuttgart INJECTION VALVE
DE3429471C2 (en) * 1984-08-10 1987-04-30 L'Orange GmbH, 7000 Stuttgart Fuel injection nozzle for an internal combustion engine
DE3624477A1 (en) * 1986-07-19 1988-01-28 Bosch Gmbh Robert INJECTION VALVE
DE4209065C2 (en) * 1992-03-20 1994-01-13 Opco Oberflaechentechnik Gmbh Valve and dosing device
DE4220048A1 (en) * 1992-06-19 1993-12-23 Fft Flexible Fertigungstechnik Regulatable and controllable application system for viscous media - has nozzle system having nozzle piston and nozzle piece with longitudinal bore for piston and dosing nozzle
US5954033A (en) * 1996-12-09 1999-09-21 Caterpillar Inc. Fuel injector having non contacting valve closing orifice structure
CN102910569B (en) * 2012-11-22 2016-12-07 黎泽荣 A kind of many shower nozzles perfusion unit of adjustable flow
US9964088B2 (en) * 2016-01-18 2018-05-08 Ford Global Technologies, Llc Multi-hole fuel injector with sequential fuel injection

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1804660A (en) * 1927-03-31 1931-05-12 Treiber Diesel Engine Corp Liquid fuel feeding means for internal combustion engines
GB397493A (en) * 1932-02-18 1933-08-18 William Douglas Marchant Improvements in injection apparatus for fuel for internal combustion engines
FR913174A (en) * 1941-07-11 1946-08-30 France Etat High-pressure relay injector with medium-pressure hydraulic control
US2558148A (en) * 1948-03-08 1951-06-26 Cav Ltd Liquid fuel injection nozzle for internal-combustion engines
US2959360A (en) * 1957-09-20 1960-11-08 Alco Products Inc Fuel injectors
GB1076184A (en) * 1963-05-01 1967-07-19 Ass Eng Ltd Fuel injectors for internal combustion engines
GB1097752A (en) * 1963-09-09 1968-01-03 Ass Eng Ltd Fuel injection valves for internal combustion engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223804A (en) * 1988-10-13 1990-04-18 Volkswagen Ag I.C. engine fuel injection pump and nozzle
WO2013019141A1 (en) * 2011-08-03 2013-02-07 Zuev Boris Konstantinovich Shut-off spray-nozzle unit

Also Published As

Publication number Publication date
JPS50106029A (en) 1975-08-21
FR2235289A1 (en) 1975-01-24
US3892362A (en) 1975-07-01
DE2431172A1 (en) 1975-01-16
FR2235289B1 (en) 1978-01-13

Similar Documents

Publication Publication Date Title
GB1470373A (en) Fuel injector
CN104018966B (en) Pressure accumulation current-limiting type electromagnetic control oil sprayer
US4568021A (en) Electromagnetic unit fuel injector
GB1391327A (en) Fuel injection devices for internal combustion engines
GB1264880A (en)
GB2076073A (en) Internal combustion engine fuel injectors operated by engine compression pressure
US3435811A (en) Multiple injection fuel pump
GB1406216A (en) Fuel injection nozzle units
CN205478049U (en) Common -rail oil injector assembly
US2962227A (en) Fuel injection nozzles
CN203892092U (en) Pressure accumulating and flow limiting electromagnetic control oil atomizer
GB1191494A (en) Improvements relating to the Control of Pre-Injection in Fuel-Injection Internal Combustion Engines.
US3446440A (en) Double injection system with one nozzle
GB1178486A (en) Improvements in and relating to Fuel Injection Valves
GB363114A (en) Improvements in or relating to fuel injection devices for internal combustion engines
GB1326306A (en) Fuel injector
CN212318196U (en) Control valve sleeve with quick switching function
US3403632A (en) External spring needle valve fuel injector
GB1370819A (en) Fuel injector
GB1287492A (en) Improvements in or relating to fuel injection valves
US4005685A (en) Fuel injection apparatus
CN206917788U (en) A kind of oil nozzle couple, fuel injector and automobile
JPS632022B2 (en)
ATE47202T1 (en) FUEL INJECTOR.
FR2307976A1 (en) Fuel injection nozzle for compression ignition engines - delivery start is at a restricted rate

Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed