EP0928893A2 - Electrovanne - Google Patents

Electrovanne Download PDF

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Publication number
EP0928893A2
EP0928893A2 EP98121088A EP98121088A EP0928893A2 EP 0928893 A2 EP0928893 A2 EP 0928893A2 EP 98121088 A EP98121088 A EP 98121088A EP 98121088 A EP98121088 A EP 98121088A EP 0928893 A2 EP0928893 A2 EP 0928893A2
Authority
EP
European Patent Office
Prior art keywords
valve
solenoid valve
ring
electro
magnetic valve
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.)
Withdrawn
Application number
EP98121088A
Other languages
German (de)
English (en)
Other versions
EP0928893A3 (fr
Inventor
Erwin Krimmer
Tilman Miehle
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 EP0928893A2 publication Critical patent/EP0928893A2/fr
Publication of EP0928893A3 publication Critical patent/EP0928893A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/108—Valves characterised by the material
    • F04B53/1082—Valves characterised by the material magnetic
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine

Definitions

  • the invention relates to an electric solenoid valve according to the genus of Main claim.
  • a solenoid valve is known. (EP 0 451 227 B1)
  • Such known electro-magnetic valves are usually closed when de-energized Valves are used to increase the risk of an internal combustion engine running out prevent.
  • Solenoid valves of this kind require the control unit proportionately strong.
  • the solenoid valve interrupts the flow of diesel oil from a gear pump to the high pressure pump. For example, there is such a risk of runaway if a ring slide is jammed in the pump workspace, besides but also when the delivery stroke of the high-pressure pump piston due to the spray adjustment based on its rotational position too late, so that the filling grooves already at top dead center of the pump piston or earlier the connection between Establish the pump workspace and suction line.
  • the electro-magnetic valve according to the invention with the characteristic features
  • the main claim has the advantage that the control is carried out Control unit is less loaded because the solenoid valve only in an emergency and must be activated for function control. Furthermore, it is advantageous that the armature of the solenoid valve floats in the diesel oil flow and in a brass sleeve is arranged, the outside, especially towards the coil, reliably sealed is. Further advantages result from the features of the subclaims and from the description and the drawing.
  • the solenoid valve 1 has an injection-molded plastic valve housing 2 with a valve inlet 3 and a valve outlet 4, both of which are designed as connecting pieces for corresponding supply and discharge lines.
  • a receptacle 5 for an electrical connection and two fastening tabs 6 and 7 are attached to the valve housing 2.
  • a valve 10 consisting of valve seat 8 and valve closing body 9, the valve seat 8 being integrally formed on the inner end of the valve inlet 3 and the valve closing body 9 being a ball which can be seated sealingly on the valve seat 8 and so that the passage to valve outlet 4 is blocked.
  • the valve closing body 9 is actuated by a valve tappet 11 which penetrates a guide sleeve 12 and projects into an armature space 13.
  • the guide sleeve 12 has on its outer surface two ring grooves 14 and 15, in each of which an O-ring 16 or 17 is inserted.
  • the armature space 13 is filled with diesel oil and accommodates an armature 18 which can act on the valve lifter 11.
  • the armature 18 has an axially parallel compensation bore 19, through which liquid can pass from one side to the other side of the armature 18.
  • Anchor 18 and armature space 13 are closed off from the outside and particularly towards a coil 20 by a cup-shaped brass sleeve 21, against which one (16) of the two O-rings 16 and 17 lies sealingly.
  • a bracket 22 creates a magnetic connection.
  • An electrical connection 23 is used to supply the coil 20. It is embedded in the valve housing 2 enclosing the individual parts of the solenoid valve 1, which is made of plastic in a single injection molding process.
  • the extrusion coating protects the contacting of the electrical connections against corrosive environmental influences. In addition, the extrusion coating also protects the coil 20 against corrosive environmental influences and against the vibration stresses which occur particularly in a common rail system, in that the individual wires are fixed and cannot rub against one another.
  • the attachment of the guide sleeve 12 and the brass sleeve 21 is achieved by folding tabs that are integrated in the bracket 22.
  • the mechanical cohesion of all fixed valve parts, the creation of the electrical and hydraulic connections and the formation of the two fastening tabs 6 and 7 are achieved during the injection molding process for the production of the plastic valve housing 2.
  • the electro-magnetic valve 1 is in a delivery line from a not shown Gear high-pressure pump to a common rail high-pressure pump, also not shown used.
  • Solenoid valve 1 switched from its normal open position to the closed position. Here it works as a 2/2-way solenoid valve.
  • the force to close the solenoid valve 1 is generated by energizing the coil 20 and generated by a corresponding magnetic field.
  • the magnetic flux will passed over the bracket 22, the guide sleeve 12 and the armature 18.
  • the anchor 18th is pulled towards the guide sleeve 12. He presses over the valve lifter 11 on the valve closing body 9 and moves it to its valve seat 8. If the valve 10 is closed, the diesel oil flow to the high pressure pump is interrupted.
  • the currentless open switching principle has the advantage that this is the electrical switching operations monitoring electronic control unit is only slightly loaded and that only in an emergency or for a functional check. Furthermore, this type of activity the advantage given that the fact that in the parking position of the magnet has the highest power, ensures optimal use of magnetic energy is.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Magnetically Actuated Valves (AREA)
EP98121088A 1998-01-12 1998-11-06 Electrovanne Withdrawn EP0928893A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29800347U DE29800347U1 (de) 1998-01-12 1998-01-12 Elektro-Magnetventil
DE29800347U 1998-01-12

Publications (2)

Publication Number Publication Date
EP0928893A2 true EP0928893A2 (fr) 1999-07-14
EP0928893A3 EP0928893A3 (fr) 2002-03-20

Family

ID=8051113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121088A Withdrawn EP0928893A3 (fr) 1998-01-12 1998-11-06 Electrovanne

Country Status (4)

Country Link
US (1) US6138986A (fr)
EP (1) EP0928893A3 (fr)
JP (1) JP3060792U (fr)
DE (1) DE29800347U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946610A1 (de) * 1999-09-29 2001-04-12 Bosch Gmbh Robert Kraftstoffeinspritzsystem und Kraftstoffhochdruckpumpe

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001000473A1 (fr) * 1999-06-23 2001-01-04 Continental Teves Ag & Co. Ohg Soupape electromagnetique, notamment pour systemes de freinage hydrauliques a antiblocage
DE10238840A1 (de) * 2002-08-23 2004-03-04 Thomas Magnete Gmbh Magnetanordnung
CN100383390C (zh) * 2003-05-20 2008-04-23 乐金电子(天津)电器有限公司 往复式压缩机的吸气阀固定装置
DE102004051138B4 (de) * 2004-10-20 2006-11-30 Compact Dynamics Gmbh Druckverstärkendes Brennstoff-Einspritzventil
WO2012015679A2 (fr) * 2010-07-30 2012-02-02 Borgwarner Inc. Module solénoïde en plastique intégré
DE102015010728A1 (de) * 2015-08-17 2017-02-23 Thomas Magnete Gmbh Motorpumpenaggregat

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451227B1 (fr) 1989-10-20 1994-12-14 Robert Bosch Gmbh Pompe d'injection de carburant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2503355A1 (de) * 1975-01-28 1976-07-29 Bosch Gmbh Robert Kraftstoffeinspritzpumpe fuer brennkraftmaschinen
DE2847748A1 (de) * 1978-11-03 1980-05-22 Bosch Gmbh Robert Wassersteuerventil fuer eine kraftfahrzeug-klimaanlage, insbesondere heizungsanlage, sowie verfahren zu dessen herstellung, insbesondere justierung
DE3911559A1 (de) * 1989-04-08 1990-10-11 Bosch Gmbh Robert Steuereinrichtung zum stillsetzen einer brennkraftmaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451227B1 (fr) 1989-10-20 1994-12-14 Robert Bosch Gmbh Pompe d'injection de carburant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946610A1 (de) * 1999-09-29 2001-04-12 Bosch Gmbh Robert Kraftstoffeinspritzsystem und Kraftstoffhochdruckpumpe
DE19946610B4 (de) * 1999-09-29 2009-09-10 Robert Bosch Gmbh Kraftstoffeinspritzsystem und Kraftstoffhochdruckpumpe

Also Published As

Publication number Publication date
DE29800347U1 (de) 1999-05-12
EP0928893A3 (fr) 2002-03-20
US6138986A (en) 2000-10-31
JP3060792U (ja) 1999-09-07

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