EP0971098B1 - Moteur muni d'actionneur de soupape à commande pneumatique ou hydraulique - Google Patents

Moteur muni d'actionneur de soupape à commande pneumatique ou hydraulique Download PDF

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Publication number
EP0971098B1
EP0971098B1 EP99109776A EP99109776A EP0971098B1 EP 0971098 B1 EP0971098 B1 EP 0971098B1 EP 99109776 A EP99109776 A EP 99109776A EP 99109776 A EP99109776 A EP 99109776A EP 0971098 B1 EP0971098 B1 EP 0971098B1
Authority
EP
European Patent Office
Prior art keywords
pneumatic
internal combustion
compressed air
control
combustion engine
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 - Lifetime
Application number
EP99109776A
Other languages
German (de)
English (en)
Other versions
EP0971098A1 (fr
Inventor
Herbert Klausnitzer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0971098A1 publication Critical patent/EP0971098A1/fr
Application granted granted Critical
Publication of EP0971098B1 publication Critical patent/EP0971098B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/16—Pneumatic means

Definitions

  • the invention relates to a preamble of claim 1 Internal combustion engine with a pneumatic and / or hydraulic actuator for a gas exchange lift valve, the lift valve with a shaft over its shaft a control chamber with pistons which can be acted upon on both sides in drive connection stands, and the control rooms on both sides of the piston with lines stand, which are controlled by solenoid valves.
  • a pneumatically operated valve control for internal combustion engines in combination with a mechanical return spring is for example from DE-A 41 32 891 known, the supply and discharge of the pressure medium via electrically controlled Valves is effected.
  • a hydraulic valve control is known from DE-A 195 15 142, at of the supply and discharge lines of the hydraulic pressure medium from the control rooms are controlled on both sides of the piston by solenoid valves.
  • Coaxial valves are known from DE-U-1866 548 (Fig. 2) known. Because especially in Otto internal combustion engines with relatively high speeds in pneumatic or hydraulic actuators quickly supplied the respective pressure medium and have to be discharged, fast-switching valves are required for this.
  • the invention is based on the object for a generic actuator for the control / reversal of large quantities of the respective print medium or To propose flow medium quick acting solenoid valve with a simplified Arrangement of lines for the supply and discharge of the respective flow medium.
  • solenoid valves Serve electromagnetically controlled coaxial valves and arranged them in this way are that by filling a single line to each control room and Emptying is effected.
  • a pneumatic actuator is selected the one with the front of the internal combustion engine in the area of the omitted camshaft drive Air pump arranged on a crankshaft with interposition a compressed air reservoir arranged in the cylinder head in connection stands.
  • An internal combustion engine 23, not shown in detail, is preferably equipped with a pneumatic actuator 4 equipped for a gas exchange valve 2.
  • the lift valve 2 stands over its shaft 2 'with one in a control chamber 3 on both sides Actuatable piston 1 in drive connection.
  • the piston 1 divides the Control chamber 3 in the control rooms 3 'and 3 ", the control room 3' with a Line 15 and the control room 3 "according to Figure 2 with a line 18 in connection stands.
  • Solenoid valves 5 and 6 are used to control lines 15 and 18.
  • the control chamber 3 can be part of the actuator 4, in which the two furthermore Electromagnetically controlled coaxial valves 5 and 6 are arranged.
  • the longitudinal channel 7 of the compressed air supply and the longitudinal channel 8 of the compressed air discharge serves.
  • the compressed air longitudinal duct 7 there is a compressed air supply duct in the actuator 10 connected, the two coaxial valves 5 and 6 feeds compressed air.
  • the compressed air duct 11 is connected in the actuator to the longitudinal duct 8 for compressed air discharge, The respective compressed air flows into the longitudinal duct via the valve-controlled system 8th.
  • Compressed air is always present in the supply duct 10. Via the disposal channel 11 the air flows into the longitudinal bore 8, from there, depending on the valve, through bores 12 in the intake or exhaust port 13 in the cylinder head 9.
  • FIG. 1 the opening of the valve 2 is shown.
  • An armature 14 of the coaxial valve 5 is in the lower position, so that compressed air via the channels 10 and 15 in can flow into the control chamber 3 above the piston 1, while the Disposal channel 16 of the coaxial valve 5 is closed.
  • An armature 17 of the coaxial valve 6 is in the upper position and closes the Compressed air supply, while the air below the piston 1 from the control room 3 " can escape via the disposal channels or lines 18, 19 and 11.
  • the internal combustion engine 23 shown in FIG. 3 is on the front side in the area of the omitted one Camshaft drive with a compressed air pump arranged on the crankshaft 21 20 equipped with the interposition of one arranged in the cylinder head 9 Compressed air reservoir 22 with the compressed air supply channel 7 in connection stands.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (2)

  1. Moteur à combustion interne comprenant un actionneur pneumatique et/ou hydraulique pour une soupape de distribution des gaz,
    dans lequel la soupape (2) est en liaison cinématique, par l'intermédiaire de sa tige (2'), avec un piston (1) qui peut être sollicité sur chaque côté dans une chambre de commande (3), et
    avec chaque fois une chambre de commande (3', 3") située des deux côtés du piston (1), et mises en communication avec des conduites (15, 18) qui
    sont commandées au moyen d'électrovalves (5, 6),
    caractérisé en ce qu'
    on utilise comme électrovalves des valves coaxiales (5, 6) commandées électromagnétiquement et ces valves sont disposées de telle manière que
    le remplissage et la vidange soient réalisés au moyen d'une seule conduite (15, 18) pour chaque chambre de commande (3', 3").
  2. Moteur à combustion interne selon la revendication 1,
    caractérisé en ce qu'
    il est prévu un actionneur pneumatique (4) qui
    est en liaison avec une pompe à air comprimé (20) montée sur un vilebrequin (21), sur le côté frontal du moteur à combustion interne (23), dans la région de l'entraínement, maintenant supprimé de l'arbre à cames, avec interposition d'un accumulateur d'air comprimé (22) agencé dans la culasse (9).
EP99109776A 1998-07-05 1999-05-18 Moteur muni d'actionneur de soupape à commande pneumatique ou hydraulique Expired - Lifetime EP0971098B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19829857 1998-07-05
DE19829857A DE19829857A1 (de) 1998-07-05 1998-07-05 Brennkraftmaschine mit einem pneumatischen und/oder hydraulischen Aktuator für ein Gaswechsel-Hubventil

Publications (2)

Publication Number Publication Date
EP0971098A1 EP0971098A1 (fr) 2000-01-12
EP0971098B1 true EP0971098B1 (fr) 2003-07-30

Family

ID=7872939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109776A Expired - Lifetime EP0971098B1 (fr) 1998-07-05 1999-05-18 Moteur muni d'actionneur de soupape à commande pneumatique ou hydraulique

Country Status (2)

Country Link
EP (1) EP0971098B1 (fr)
DE (2) DE19829857A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10137767B4 (de) * 2000-08-02 2008-11-20 Ford Global Technologies, Dearborn Gasaustauschkanal zwischen zwei Einlassöffnungen
DE102008006777B4 (de) 2008-01-30 2018-08-09 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Ventiltrieb mit einem pneumatischen Rückstellsystem und Verfahren zum Betreiben des Ventiltriebs

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1866548U (de) * 1962-02-28 1963-01-31 Gottfried Mueller Durchlaufventil.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844528A (en) * 1971-12-30 1974-10-29 P Massie Electrically operated hydraulic valve particularly adapted for pollution-free electronically controlled internal combustion engine
EP0244878B1 (fr) * 1985-02-11 1990-10-31 INTERATOM Gesellschaft mit beschränkter Haftung Commande électromagnétique-hydraulique de soupapes des moteurs à combustion interne
GB2206646A (en) * 1987-07-08 1989-01-11 Gwendoline Innes Engine valve gear
DE4132891A1 (de) 1991-10-04 1993-04-08 Audi Ag Pneumatisch betaetigte ventilsteuerung fuer brennkraftmaschinen
US5253619A (en) * 1992-12-09 1993-10-19 North American Philips Corporation Hydraulically powered actuator with pneumatic spring and hydraulic latching
US5410994A (en) 1994-06-27 1995-05-02 Ford Motor Company Fast start hydraulic system for electrohydraulic valvetrain
US5638781A (en) * 1995-05-17 1997-06-17 Sturman; Oded E. Hydraulic actuator for an internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1866548U (de) * 1962-02-28 1963-01-31 Gottfried Mueller Durchlaufventil.

Also Published As

Publication number Publication date
EP0971098A1 (fr) 2000-01-12
DE19829857A1 (de) 2000-01-13
DE59906421D1 (de) 2003-09-04

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