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WO1997031179A1 - Dispositif pour modifier la duree d'ouverture et de fermeture des soupapes d'inversion de gaz dans un moteur a combustion interne - Google Patents

Dispositif pour modifier la duree d'ouverture et de fermeture des soupapes d'inversion de gaz dans un moteur a combustion interne Download PDF

Info

Publication number
WO1997031179A1
WO1997031179A1 PCT/EP1996/003710 EP9603710W WO9731179A1 WO 1997031179 A1 WO1997031179 A1 WO 1997031179A1 EP 9603710 W EP9603710 W EP 9603710W WO 9731179 A1 WO9731179 A1 WO 9731179A1
Authority
WO
WIPO (PCT)
Prior art keywords
slide
adjusting piston
recess
internal combustion
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.)
Ceased
Application number
PCT/EP1996/003710
Other languages
German (de)
English (en)
Inventor
Jochen Auchter
Andreas Strauss
Rainer Ottersbach
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.)
INA Waelzlager Schaeffler OHG
Original Assignee
INA Waelzlager Schaeffler OHG
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 INA Waelzlager Schaeffler OHG filed Critical INA Waelzlager Schaeffler OHG
Publication of WO1997031179A1 publication Critical patent/WO1997031179A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/34403—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft
    • F01L1/34406—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft the helically teethed sleeve being located in the camshaft driving pulley

Definitions

  • the only indirect displacement of the coupling means which in the embodiment of the invention is designed, for example, as a ball or roller, frees its slide from the holding forces. This makes it possible to dimension the slider, which may have a piston shape, for example, since its load is reduced.
  • a further subclaim describes an advantageous measure of a hydraulic medium supply to the first pressure chamber and in front of the end face of the slide, through separate radial bores starting from the common path.
  • the radial bore for supplying the hydraulic medium in front of the end face of the slide at the same time as a supply bore for the one pressure chamber.
  • Figure 3 is an enlarged view of the device in the area of its coupling means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

L'invention concerne un dispositif (1) pour modifier la durée d'ouverture et de fermeture des soupapes d'inversion de gaz dans un moteur à combustion interne. Elle a pour objet d'éviter avec des moyens simples les bruits de cliquetis désagréables provoqués par la venue en butée très fréquente du piston de réglage de ce dispositif dans sa position de butée retardée, par suite d'un manque de pression hydraulique lors du démarrage. Selon l'invention, il est donc prévu de positionner une coulisse (19) dans une unité menée (12) du dispositif (1), laquelle coulisse agit sur un moyen d'accouplement (24) agissant radialement vers l'extérieur. Ce dernier peut être amené, par des régions partielles de sa surface d'enveloppe (27), dans un évidement (26) d'un piston de réglage (9) du dispositif (1), ce qui empêche le piston de réglage (9) de poursuivre son mouvement axial lorsqu'il atteint sa position de butée retardée, jusqu'à ce que le dispositif (1) ait été suffisamment rempli à nouveau de fluide hydraulique.
PCT/EP1996/003710 1996-02-23 1996-08-22 Dispositif pour modifier la duree d'ouverture et de fermeture des soupapes d'inversion de gaz dans un moteur a combustion interne Ceased WO1997031179A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19606724A DE19606724A1 (de) 1996-02-23 1996-02-23 Vorrichtung zum Verändern der Öffnungs- und Schließzeiten von Gaswechselventilen einer Brennkraftmaschine
DE19606724.3 1996-02-23

Publications (1)

Publication Number Publication Date
WO1997031179A1 true WO1997031179A1 (fr) 1997-08-28

Family

ID=7786178

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/003710 Ceased WO1997031179A1 (fr) 1996-02-23 1996-08-22 Dispositif pour modifier la duree d'ouverture et de fermeture des soupapes d'inversion de gaz dans un moteur a combustion interne

Country Status (2)

Country Link
DE (1) DE19606724A1 (fr)
WO (1) WO1997031179A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7278385B2 (en) 2004-03-11 2007-10-09 Hydraulik-Ring Gmbh Camshaft adjuster with a locking position that, with regard to design, is freely selectable
DE102021101306A1 (de) 2021-01-22 2022-07-28 Schaeffler Technologies AG & Co. KG Nockenwellenversteller mit Verriegelungsmechanismus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755495A1 (de) * 1997-12-13 1999-06-17 Schaeffler Waelzlager Ohg Verriegelungseinrichtung für eine Vorrichtung zum Verändern der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine
DE102004028015A1 (de) * 2004-06-08 2006-01-19 Daimlerchrysler Ag Hydraulischer Schwenkmotor
DE102005034320B4 (de) * 2005-07-22 2017-09-07 Schaeffler Technologies AG & Co. KG Verriegelungseinrichtung für einen Nockenwellenversteller
US7497193B2 (en) 2006-01-18 2009-03-03 Hydraulik-Ring Gmbh Rotor of a camshaft adjuster
DE102006019435B4 (de) * 2006-01-18 2010-06-02 Hydraulik-Ring Gmbh Rotor eines Nockenwellenverstellers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909803A1 (de) * 1978-03-24 1979-09-27 Alfa Romeo Spa Phasenschieber der steuerung fuer verbrennungskolbenmotor
DE3732561A1 (de) * 1987-09-26 1989-04-13 Daimler Benz Ag Verriegelbarer hydraulikzylinder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258937A (en) * 1964-06-25 1966-07-05 Caterpillar Tractor Co Automatic hydraulic engine timing device
DE4239986A1 (en) * 1991-11-28 1993-06-03 Atsugi Unisia Corp Valve timing control system for IC engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909803A1 (de) * 1978-03-24 1979-09-27 Alfa Romeo Spa Phasenschieber der steuerung fuer verbrennungskolbenmotor
DE3732561A1 (de) * 1987-09-26 1989-04-13 Daimler Benz Ag Verriegelbarer hydraulikzylinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7278385B2 (en) 2004-03-11 2007-10-09 Hydraulik-Ring Gmbh Camshaft adjuster with a locking position that, with regard to design, is freely selectable
DE102021101306A1 (de) 2021-01-22 2022-07-28 Schaeffler Technologies AG & Co. KG Nockenwellenversteller mit Verriegelungsmechanismus

Also Published As

Publication number Publication date
DE19606724A1 (de) 1997-08-28

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