EP0499789A1 - Système de commande pour arrêter un moteur à combustion interne - Google Patents

Système de commande pour arrêter un moteur à combustion interne Download PDF

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Publication number
EP0499789A1
EP0499789A1 EP19920100630 EP92100630A EP0499789A1 EP 0499789 A1 EP0499789 A1 EP 0499789A1 EP 19920100630 EP19920100630 EP 19920100630 EP 92100630 A EP92100630 A EP 92100630A EP 0499789 A1 EP0499789 A1 EP 0499789A1
Authority
EP
European Patent Office
Prior art keywords
valve
line
seat
fuel
suction
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Withdrawn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
EP19920100630
Other languages
German (de)
English (en)
Inventor
Karl Rapp
Hansjoerg Dipl.-Ing. Frey (Fh)
Karsten Dipl.-Ing. Hummel
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
Priority claimed from DE19914104807 external-priority patent/DE4104807A1/de
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0499789A1 publication Critical patent/EP0499789A1/fr
Withdrawn legal-status Critical Current

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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
    • F02M63/02—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
    • F02M63/0215—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 by draining or closing fuel conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86839—Four port reversing valves

Definitions

  • the invention relates to a control device for stopping an internal combustion engine according to the preamble of claim 1.
  • the main application P 39 34 389 proposes a control device for stopping an internal combustion engine, with a reversing valve used in fuel lines between a feed pump and a fuel injection pump, by means of which the direction of action of the feed pump can be reversed by changing the line connections made in the reversing valve to stop the internal combustion engine.
  • the suction chamber of the fuel injection pump is connected to the suction side of the feed pump and the pressure side of the feed pump is connected to the fuel reservoir.
  • the reversing valve has a valve member with a double-seat valve closing body, which is partially elastomer-coated.
  • the valve member is expensive to manufacture because of the elastomer coating.
  • the control device according to the invention for stopping an internal combustion engine with the characterizing features of claim 1 has the advantage that the valve member is easy to manufacture, since the sealing element can be retrofitted as a separate part thereon.
  • FIG. 1 An embodiment of the invention is shown in the drawing and explained in more detail in the following description.
  • the figures show a control device with a reversing valve in longitudinal section, the reversing valve being shown in FIG. 1 in the conveying position and in FIG. 2 in the shut-off position.
  • a control device 14 has a reversing valve 12 inserted into the fuel circuit of a fuel injection pump 11 and a feed pump 13.
  • the reversing valve 12 is designed as a solenoid valve with a valve member 16 which can be displaced by the force of a return spring 17 into a conveying position for operating an internal combustion engine and against spring force into a switch-off position for stopping the internal combustion engine.
  • the reversing valve 12 is designed as a 4/2-way valve and has a three-part housing 22, with a central housing part 23 and two lateral housing parts 24 and 25.
  • the housing parts 23, 24, 25 are distributed over several screws 26 on the circumference of the housing connected to one another, a sealing ring 27 being clamped in each case between two housing parts.
  • the valve member 16 of the reversing valve is designed as a slide with a blind bore 28 open to the return spring 17, from which a transverse bore 29, 30 extends in each of the two end regions of the slide.
  • the slide 16 has on its outer surface two radially projecting annular projections 31, 32, over each of which a sealing element 33, 34 is slipped, which serves as a double-seat valve closing body.
  • the sealing elements 33, 34 are elastically deformable in such a way that they can be buttoned over the projections 31, 32 and cannot be released from the projections by axial forces occurring during the operation of the reversing valve.
  • the sealing elements 33, 34 can for example consist of rubber or a rubber-like material.
  • Two valve spaces 35, 36 are formed in the valve housing 22, each of which forms two valve seats 39 and 40 or 41 and 42.
  • the sealing elements 33, 34 are provided with elastically deformable sealing lips 37 facing the valve seats 39, 40 and 41, 42, respectively.
  • the slider 16 can also have a plurality of axially offset radial projections in the region of each sealing element, so that the sealing elements can also withstand higher axial loads.
  • the slide is guided at its two ends in bores 44 in the lateral valve housing parts 24, 25.
  • the lateral valve housing parts 24, 25 and the central valve housing part 23 also have larger bores 46 in diameter, through which the slide 16 passes with great radial play.
  • an electromagnet 48 is inserted, which acts on the end face of the slide 16 via a pin 49.
  • the blind bore 28 is connected via a bore 51 in the end face of the slide to the space 52 delimited by the slide on the one hand and the electromagnet on the other.
  • the return spring 17 which holds the slide in contact with the pin 49, engages on the slide 16 via a plate 54.
  • the return spring 17 is supported on a closure part 55 inserted into the lateral valve housing part 25, the return spring 17 being arranged in a space 56 which is connected by a bore 57 in the plate 54 to the blind bore 28 in the slide 16.
  • the return spring 17 can also act directly, that is, without a spring plate on the slide 16.
  • a valve chamber 58 formed in the region of the transverse bore 29 in the end region of the slide in the lateral valve housing part 25 facing the return spring 17 is connected to a transverse bore 59 which is connected via a connecting line 60 to the suction chamber 61 of the fuel injection pump 11.
  • a fuel temperature sensor can be inserted into the transverse bore 59.
  • a suction line 62 leads from the lateral valve housing part 24 to the feed pump 13, from which a pressure line 63 continues, in which a filter 64 is arranged.
  • the pressure line 63 opens into the other side valve housing part 25.
  • a tank line 66 leads from the central valve housing part 23 to a fuel reservoir 67.
  • valve seat 41 In the delivery position of the slide, as shown in FIG. 1, the valve seat 41 is open and the second sealing element 34 is in contact with the valve seat 42, so that the feed pump 13 passes fuel via the tank line 66 through the bore 46 surrounding the slide and the opened valve seat 41 can suck from the fuel tank 67.
  • the first sealing element 33 closes the valve seat 40 in the conveyed position of the slide 16, so that the other valve seat 39 is open. Fuel from the feed pump 13 can thus pass through the opened valve seat 39 and the one surrounding the slide 16 Bore 46 in the lateral valve housing part 25 into the transverse bore 59 and from there via the connecting line 60 into the suction chamber 61 of the fuel injection pump 11.
  • An overflow line 68 leads from the suction chamber 61, in which an overflow valve 69 is arranged and which opens into the fuel reservoir 67. In the conveying position, the slide 16 is held by the force of the return spring 17 in contact with the pin 49 of the electromagnet 48 not energized.
  • the pressure line 63 of the feed pump 13 is connected to the tank line 66 through the valve seat 39 held open by the first sealing element 33 and the bore 46 surrounding the slide 16 in the central valve housing part 23. In the switch-off position, the feed pump 13 thus sucks the suction chamber 61 of the fuel injection pump empty and conveys the fuel from the suction chamber into the fuel reservoir 67.
  • the sealing lips 37 When the slide 16 is adjusted between the conveying position and the switch-off position, the sealing lips 37 first come into contact with the respective valve seat and yield elastically and thus reliably seal the valve seats. Due to the elastic deformation of the sealing lips 37, manufacturing inaccuracies can be compensated for, for example, deviations in the spacing of the valve seats, so that both valve seats required for the respective position are nevertheless sealed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
EP19920100630 1991-02-16 1992-01-16 Système de commande pour arrêter un moteur à combustion interne Withdrawn EP0499789A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914104807 DE4104807A1 (de) 1989-10-14 1991-02-16 Steuereinrichtung zum stillsetzen einer brennkraftmaschine
DE4104807 1991-02-16

Publications (1)

Publication Number Publication Date
EP0499789A1 true EP0499789A1 (fr) 1992-08-26

Family

ID=6425188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920100630 Withdrawn EP0499789A1 (fr) 1991-02-16 1992-01-16 Système de commande pour arrêter un moteur à combustion interne

Country Status (3)

Country Link
US (1) US5152265A (fr)
EP (1) EP0499789A1 (fr)
JP (1) JPH0587007A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4129828C1 (fr) * 1991-09-07 1993-04-29 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE4133557C2 (de) * 1991-10-10 2000-06-29 Bosch Gmbh Robert Steuereinrichtung zum Stillsetzen einer Brennkraftmaschine
DE4209782A1 (de) * 1992-03-26 1993-09-30 Bosch Gmbh Robert Steuereinrichtung zum Stillsetzen einer Brennkraftmaschine
JP3133586B2 (ja) * 1993-11-18 2001-02-13 富士重工業株式会社 高圧燃料噴射式エンジンの燃料圧力制御装置
EP0907527B1 (fr) * 1996-06-24 2004-01-14 Breed Automotive Technology, Inc. Unite de commande d'ecoulement de carburant
JP3774334B2 (ja) * 1999-06-17 2006-05-10 株式会社テージーケー 四方向切換弁
JP4790010B2 (ja) * 2005-03-28 2011-10-12 シグマ−アルドリッチ・カンパニー、エルエルシー 容器から物質を取り出すためのバルブ
DE102021112551A1 (de) * 2021-05-14 2022-11-17 Stiebel Eltron Gmbh & Co. Kg 3/2-Wegeventil, Hydraulikbaugruppe und zugehörige Wärmepumpe
DE102022200494A1 (de) 2022-01-18 2023-07-20 Robert Bosch Gesellschaft mit beschränkter Haftung Ventilvorrichtung, insbesondere zur Steuerung einer Gasströmung, Brennstoffzellenanordnung und brennstoffzellenbetriebenes Fahrzeug

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941236C (de) * 1952-07-11 1956-04-05 Paxman & Co Ltd Davey Sicherheitsvorrichtung zum Stillsetzen von Einspritz-Brennkraftmaschinen
GB819278A (en) * 1956-02-20 1959-09-02 Carrier Engineering Co Ltd Improvements in or relating to reversing valves for refrigeration systems
US3525364A (en) * 1968-09-04 1970-08-25 Mccord Corp Control valve assembly
FR2303217A1 (fr) * 1975-03-06 1976-10-01 Festo Maschf Stoll G Dispositif du type distributeur pour la commande de l'ecoulement de fluides
GB2074250A (en) * 1980-04-17 1981-10-28 Bosch Gmbh Robert Control system for stopping a diesel internal combustion engine
DE3934389A1 (de) * 1989-10-14 1991-04-18 Bosch Gmbh Robert Steuereinrichtung zum stillsetzen einer brennkraftmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5688954A (en) * 1979-12-21 1981-07-18 Nippon Denso Co Ltd Engine stopping apparatus
EP0213334B1 (fr) * 1985-08-30 1992-03-25 Kyocera Corporation Fraise en bout de cermet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941236C (de) * 1952-07-11 1956-04-05 Paxman & Co Ltd Davey Sicherheitsvorrichtung zum Stillsetzen von Einspritz-Brennkraftmaschinen
GB819278A (en) * 1956-02-20 1959-09-02 Carrier Engineering Co Ltd Improvements in or relating to reversing valves for refrigeration systems
US3525364A (en) * 1968-09-04 1970-08-25 Mccord Corp Control valve assembly
FR2303217A1 (fr) * 1975-03-06 1976-10-01 Festo Maschf Stoll G Dispositif du type distributeur pour la commande de l'ecoulement de fluides
GB2074250A (en) * 1980-04-17 1981-10-28 Bosch Gmbh Robert Control system for stopping a diesel internal combustion engine
DE3934389A1 (de) * 1989-10-14 1991-04-18 Bosch Gmbh Robert Steuereinrichtung zum stillsetzen einer brennkraftmaschine

Also Published As

Publication number Publication date
JPH0587007A (ja) 1993-04-06
US5152265A (en) 1992-10-06

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