GB1320057A - Fuel-injection valves for internal combustion engines - Google Patents

Fuel-injection valves for internal combustion engines

Info

Publication number
GB1320057A
GB1320057A GB1947871A GB1947871A GB1320057A GB 1320057 A GB1320057 A GB 1320057A GB 1947871 A GB1947871 A GB 1947871A GB 1947871 A GB1947871 A GB 1947871A GB 1320057 A GB1320057 A GB 1320057A
Authority
GB
United Kingdom
Prior art keywords
needle
chamber
valve
column
fuel
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
GB1947871A
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB1320057A publication Critical patent/GB1320057A/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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • 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
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure

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

1320057 Fuel injection valve DAIMLERBENZ AG 8 June 1971 [10 June 1970] 19478/71 Heading F1B I.C. engine fuel injection valve comprises a body 3 having a bore in which slides a stepped needle 4, the lower part 7 of the needle cooperating with a valve seat 5 to close a passage 18 leading to two injection holes 19 and 20, and the upper part 6 of the needle being guided by the bore. Fuel is supplied through a pipe 2 to the annular space 8 surrounding the part 7 and also, through a constriction to a chamber 12, the lower surface of which is formed by the head of the needle. The upper side of the chamber is closed by a valve 13 attached to the bottom end of a ceramic column 14 which exhibits a Piezo-electric effect. A pulse transformer 16 surrounds the column and has a primary winding to which low-voltage rectangular pulses are applied. The induced high-voltage pulse in the secondary causes contraction of the column and unseats the valve 13 so that fluid can escape from the chamber 12 to a drain pipe 21. Due to the constriction between the chamber 12 and the feed pipe 2, the pressure in chamber 12 drops and the pressure of the fuel in an enlargement 9 of the annular space 8, acts on the shoulder between the two diameters of the needle and raises the needle off its seat 5. Fuel injection ceases when the secondary voltage reverses. The column 14 consists of a number of superimposed cylinders connected in parallel to helical conductors 15. The valve 13 may be replaced by a piston.
GB1947871A 1970-06-10 1971-06-08 Fuel-injection valves for internal combustion engines Expired GB1320057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702028442 DE2028442A1 (en) 1970-06-10 1970-06-10 Fuel injection valve for internal combustion engines

Publications (1)

Publication Number Publication Date
GB1320057A true GB1320057A (en) 1973-06-13

Family

ID=5773516

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1947871A Expired GB1320057A (en) 1970-06-10 1971-06-08 Fuel-injection valves for internal combustion engines

Country Status (2)

Country Link
DE (1) DE2028442A1 (en)
GB (1) GB1320057A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997048900A1 (en) * 1996-06-15 1997-12-24 Robert Bosch Gmbh Fuel injection device for internal combustion engines
WO1998025060A1 (en) 1996-12-07 1998-06-11 Robert Bosch Gmbh Piezoelectric actuator
WO1998057059A1 (en) 1997-06-11 1998-12-17 Robert Bosch Gmbh Injector valve
WO1999001660A1 (en) 1997-07-01 1999-01-14 Robert Bosch Gmbh Fuel injection valve
WO1999015778A1 (en) 1997-09-25 1999-04-01 Robert Bosch Gmbh Fuel injection valve
WO2000034700A1 (en) * 1998-12-05 2000-06-15 Robert Bosch Gmbh Piezoelectric actuator
US6142443A (en) * 1997-10-18 2000-11-07 Robert Bosch Gmbh Valve for controlling fluids
WO2001027463A1 (en) * 1999-10-14 2001-04-19 Robert Bosch Gmbh Injector for a fuel injection system for internal combustion engines comprising an injector needle that projects into the valve control space
US6866171B2 (en) 2000-01-10 2005-03-15 Sulzer Chemtech Ag Method for introducing additives
US6981655B1 (en) 1999-09-29 2006-01-03 Robert Bosch Gmbh Injector for a fuel injection system for internal combustion engines with an integrated system pressure supply
RU2748627C1 (en) * 2020-04-03 2021-05-28 Акционерное общество "Научно-исследовательский институт "Элпа" с опытным производством" Method for operation of apparatus for controlled liquid supply

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529933C2 (en) * 1975-07-04 1984-07-19 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Fuel injection device for internal combustion engines
DE3031354A1 (en) * 1980-08-20 1982-04-08 Robert Bosch Gmbh, 7000 Stuttgart ELECTROMAGNETIC ARRANGEMENT
DE3237258C1 (en) * 1982-10-08 1983-12-22 Daimler-Benz Ag, 7000 Stuttgart Electrically pilot operated valve arrangement
US4535743A (en) * 1983-04-15 1985-08-20 Nippon Soken, Inc. Fuel injection apparatus for an internal combustion engine
FR2586758B1 (en) * 1985-09-04 1994-03-25 Nippon Soken Inc FUEL INJECTOR AND FUEL INJECTION SYSTEM
EP0426205B1 (en) * 1985-12-02 1993-07-21 Marco Alfredo Ganser Device for the control of electro-hydraulically actuated fuel injectors
DE3704742A1 (en) * 1987-02-14 1988-08-25 Daimler Benz Ag Piezoelectric control valve
DE3704739A1 (en) * 1987-02-14 1988-06-09 Daimler Benz Ag Piezoelectric control valve
DE3742241A1 (en) * 1987-02-14 1988-08-25 Daimler Benz Ag Piezocontrol valve for controlling fuel injection via an injection valve in internal combustion engines
DE3738630C2 (en) * 1987-11-13 1995-06-08 Rexroth Mannesmann Gmbh Electro-hydraulic pressure converter device
IT1232026B (en) * 1989-02-28 1992-01-23 Weber Srl ELECTRIC MAGNETIC FUEL INJECTION DEVICE FOR DIESEL CYCLE ENGINES
GB9320798D0 (en) 1993-10-08 1993-12-01 Lucas Ind Plc Fuel injection nozzle
DE4340305C2 (en) * 1993-11-26 1998-02-19 Daimler Benz Ag Fuel injection nozzle for an internal combustion engine
EP0741244B1 (en) * 1995-05-03 1999-07-07 DaimlerChrysler AG Injection nozzle
GB2304153B (en) * 1995-06-02 1999-05-05 Caterpillar Inc Direct operated check injector
FI101738B1 (en) * 1996-01-30 1998-08-14 Waertsilae Nsd Oy Ab Injector device
JP3823391B2 (en) * 1996-08-31 2006-09-20 いすゞ自動車株式会社 Engine fuel injector

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997048900A1 (en) * 1996-06-15 1997-12-24 Robert Bosch Gmbh Fuel injection device for internal combustion engines
CN1080825C (en) * 1996-06-15 2002-03-13 罗伯特·博施有限公司 Fuel injection device for internal combustion engines
US5975428A (en) * 1996-06-15 1999-11-02 Robert Bosch Gmbh Fuel injection device for internal combustion engines
WO1998025060A1 (en) 1996-12-07 1998-06-11 Robert Bosch Gmbh Piezoelectric actuator
WO1998057059A1 (en) 1997-06-11 1998-12-17 Robert Bosch Gmbh Injector valve
WO1999001660A1 (en) 1997-07-01 1999-01-14 Robert Bosch Gmbh Fuel injection valve
US6328017B1 (en) * 1997-09-25 2001-12-11 Robert Bosch Gmbh Fuel injection valve
WO1999015778A1 (en) 1997-09-25 1999-04-01 Robert Bosch Gmbh Fuel injection valve
US6142443A (en) * 1997-10-18 2000-11-07 Robert Bosch Gmbh Valve for controlling fluids
WO2000034700A1 (en) * 1998-12-05 2000-06-15 Robert Bosch Gmbh Piezoelectric actuator
US6981655B1 (en) 1999-09-29 2006-01-03 Robert Bosch Gmbh Injector for a fuel injection system for internal combustion engines with an integrated system pressure supply
WO2001027463A1 (en) * 1999-10-14 2001-04-19 Robert Bosch Gmbh Injector for a fuel injection system for internal combustion engines comprising an injector needle that projects into the valve control space
US6820827B1 (en) 1999-10-14 2004-11-23 Robert Bosch Gmbh Injector for a fuel injection system for internal combustion engines, having a nozzle needle protruding into the valve control chamber
US6866171B2 (en) 2000-01-10 2005-03-15 Sulzer Chemtech Ag Method for introducing additives
RU2748627C1 (en) * 2020-04-03 2021-05-28 Акционерное общество "Научно-исследовательский институт "Элпа" с опытным производством" Method for operation of apparatus for controlled liquid supply

Also Published As

Publication number Publication date
DE2028442A1 (en) 1971-12-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees