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 PDFInfo
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract description 37
- 238000010168 coupling process Methods 0.000 claims abstract description 37
- 238000005859 coupling reaction Methods 0.000 claims abstract description 37
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996106724 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 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)
| 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)
| 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)
| 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)
| 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 |
-
1996
- 1996-02-23 DE DE1996106724 patent/DE19606724A1/de not_active Withdrawn
- 1996-08-22 WO PCT/EP1996/003710 patent/WO1997031179A1/fr unknown
Patent Citations (2)
| 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)
| 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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