GB1353621A - Electro magnetic injection valves - Google Patents

Electro magnetic injection valves

Info

Publication number
GB1353621A
GB1353621A GB1737171A GB1737171A GB1353621A GB 1353621 A GB1353621 A GB 1353621A GB 1737171 A GB1737171 A GB 1737171A GB 1737171 A GB1737171 A GB 1737171A GB 1353621 A GB1353621 A GB 1353621A
Authority
GB
United Kingdom
Prior art keywords
degrees
injection
needle
valve
angle
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
GB1737171A
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 GB1353621A publication Critical patent/GB1353621A/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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/06—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves being furnished at seated ends with pintle or plug shaped extensions
    • 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
    • F02M51/0671—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 having an elongated valve body attached thereto
    • F02M51/0675—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 having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages
    • 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
    • F02M51/08—Injectors peculiar thereto with means directly operating the valve needle specially for low-pressure fuel-injection

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

1353621 Fuel injectors ROBERT BOSCH GmbH 27 May 1971 [9 July 1970] 17371/71 Heading F1B An electromagnetic fuel injection valve for time-controlled low-pressure injection systems for I.C. engines, has, in a bore in a housing, a needle 13 terminating in an injection pin 21 comprising a conical sealing shoulder 25 contiguous to a cylindrical neck 24, the sealing shoulder having an angle of taper # between 1 degree and 10 degrees less than the angle of divergence α of a conical surface 28 of the outlet end of the nozzle, where α is between 30 degrees and 40 degrees. The injection pin 21 has an injection cone 29 with taper angle 6 between 10 degrees and 30 degrees, preferably about 20 degrees and has a spray edge 30 which remains outside nozzle bore 22 even when the valve is fully open. The valve is biased closed by spring 34 and opened when energization of winding 4 acts on an armature 12 to which the needle 13 is screwed. Fuel is supplied through a soft iron core 6, axial bore 16, transverse bores 17 and axial grooves 18 formed in needle 13.
GB1737171A 1970-07-09 1971-05-27 Electro magnetic injection valves Expired GB1353621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702034078 DE2034078A1 (en) 1970-07-09 1970-07-09 Electromagnetic injection valve for timing and stroke measurement

Publications (1)

Publication Number Publication Date
GB1353621A true GB1353621A (en) 1974-05-22

Family

ID=5776272

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1737171A Expired GB1353621A (en) 1970-07-09 1971-05-27 Electro magnetic injection valves

Country Status (5)

Country Link
CH (1) CH533236A (en)
DE (1) DE2034078A1 (en)
FR (1) FR2100362A5 (en)
GB (1) GB1353621A (en)
SE (1) SE353578B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230273A (en) * 1978-02-07 1980-10-28 The Bendix Corporation Fuel injection valve and single point system
DE2807052A1 (en) * 1978-02-18 1979-08-23 Bosch Gmbh Robert ELECTROMAGNETIC FUEL INJECTION VALVE FOR COMBUSTION MACHINES
CA1124146A (en) * 1978-09-08 1982-05-25 William B. Claxton Injector valve with contoured valve seat and needle valve interface
DE3540660A1 (en) * 1985-11-16 1987-05-21 Bosch Gmbh Robert Solenoid-operatable fuel injection valve
DE3735526C2 (en) * 1986-10-24 1999-01-21 Denso Corp Electromagnetic fuel injector
ES2125330T5 (en) † 1992-02-17 2003-02-16 Orbital Eng Pty INJECTOR NOZZLES

Also Published As

Publication number Publication date
FR2100362A5 (en) 1972-03-17
SE353578B (en) 1973-02-05
CH533236A (en) 1973-01-31
DE2034078A1 (en) 1972-01-13

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Legal Events

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