EP1170465A3 - Camshaft for engine valve drive - Google Patents
Camshaft for engine valve drive Download PDFInfo
- Publication number
- EP1170465A3 EP1170465A3 EP01112335A EP01112335A EP1170465A3 EP 1170465 A3 EP1170465 A3 EP 1170465A3 EP 01112335 A EP01112335 A EP 01112335A EP 01112335 A EP01112335 A EP 01112335A EP 1170465 A3 EP1170465 A3 EP 1170465A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel
- impeller
- camshaft
- piston
- locking device
- 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.)
- Granted
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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Diese Nockenwelle umfasst eine Einrichtung zum hydraulische Verstellen der relativen Drehlage der Nockenwelle zwecks Beeinflussung der Steuerzeiten der Ventile, welche Einrichtung ein Antriebsrad, ein Zellenrad und ein Flügelrad aufweist. Das Flügelrad ist mit Flügeln innerhalb von Zellen des Zellenrads relativbeweglich gelagert. Zwischen Zellenrad und Flügelrad ist eine in der Startphase der Brennkraftmaschine wirksame Verriegelungseinrichtung vorgesehen. Die Verriegelungseinrichtung wird durch einen axial federbelasteten, hydraulisch betätigten sowie in einer der Flügel des Flügels untergebrachten Kolben und eine korrespondierende in einer zu einer aus Antriebsrad und Zellenrad bestehenden Baueinheit vorgesehenen Aufnahme für den Kolben gebildet.This camshaft comprises a device for the hydraulic adjustment of the relative Rotational position of the camshaft in order to influence the valve timing, which Device has a drive wheel, a cellular wheel and an impeller. The impeller is with Wings mounted relatively movably within cells of the cellular wheel. Between cell wheel and impeller is an effective one in the starting phase of the internal combustion engine Locking device provided. The locking device is an axial spring-loaded, hydraulically operated and in one of the wings of the wing housed pistons and a corresponding one in one from drive wheel and Cellular wheel existing unit provided receptacle for the piston formed.
Zur Optimierung der Verriegelungseinrichtung arbeitet der mit einem Sperrabschnitt in die Aufnahme hineinragende und im Flügel geführte Kolben mit einem Betätigungselement zusammen, wobei der Kolben von einem ersten Druckraum und das Betätigungselement von einem zweiten Druckraum aus beaufschlagt wird.To optimize the locking device, the works with a locking section in the Piston protruding and guided in the wing with an actuating element together, the piston from a first pressure chamber and the actuating element is acted upon from a second pressure chamber.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10033291 | 2000-07-07 | ||
DE10033291A DE10033291A1 (en) | 2000-07-07 | 2000-07-07 | Camshaft for actuating valves of an internal combustion engine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1170465A2 EP1170465A2 (en) | 2002-01-09 |
EP1170465A3 true EP1170465A3 (en) | 2002-01-30 |
EP1170465B1 EP1170465B1 (en) | 2005-12-14 |
Family
ID=7648282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01112335A Expired - Lifetime EP1170465B1 (en) | 2000-07-07 | 2001-05-19 | Camshaft for engine valve drive |
Country Status (4)
Country | Link |
---|---|
US (1) | US6666179B2 (en) |
EP (1) | EP1170465B1 (en) |
JP (1) | JP2002047905A (en) |
DE (2) | DE10033291A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0848140A1 (en) * | 1996-12-12 | 1998-06-17 | Aisin Seiki Kabushiki Kaisha | Variable valve timing device |
JPH112108A (en) * | 1997-06-12 | 1999-01-06 | Toyota Motor Corp | Internal combustion engine variable valve timing mechanism |
JPH11311109A (en) * | 1998-04-28 | 1999-11-09 | Aisin Seiki Co Ltd | Valve on-off timing controller |
JPH11343819A (en) * | 1998-05-28 | 1999-12-14 | Aisin Seiki Co Ltd | Controller for valve opening/closing time |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3937644A1 (en) | 1989-11-11 | 1991-05-16 | Bayerische Motoren Werke Ag | IC engine camshaft hydraulic rotary angle adjuster - has locking device securing vaned wheel in initial angular position w.r.t. sliding vane wheel |
GB2302391B (en) | 1995-06-14 | 1999-08-18 | Nippon Denso Co | Control apparatus for varying the rotational or angular phase between two rotational shafts |
JPH11280427A (en) * | 1998-03-31 | 1999-10-12 | Aisin Seiki Co Ltd | Control device for valve opening/closing timing |
JP2000230511A (en) * | 1998-12-07 | 2000-08-22 | Mitsubishi Electric Corp | Vane type hydraulic actuator |
JP3477128B2 (en) * | 1999-11-30 | 2003-12-10 | 三菱電機株式会社 | Valve timing control device for internal combustion engine |
-
2000
- 2000-07-07 DE DE10033291A patent/DE10033291A1/en not_active Withdrawn
-
2001
- 2001-05-19 DE DE50108364T patent/DE50108364D1/en not_active Expired - Lifetime
- 2001-05-19 EP EP01112335A patent/EP1170465B1/en not_active Expired - Lifetime
- 2001-07-04 JP JP2001203504A patent/JP2002047905A/en active Pending
- 2001-07-09 US US09/900,492 patent/US6666179B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0848140A1 (en) * | 1996-12-12 | 1998-06-17 | Aisin Seiki Kabushiki Kaisha | Variable valve timing device |
JPH112108A (en) * | 1997-06-12 | 1999-01-06 | Toyota Motor Corp | Internal combustion engine variable valve timing mechanism |
JPH11311109A (en) * | 1998-04-28 | 1999-11-09 | Aisin Seiki Co Ltd | Valve on-off timing controller |
JPH11343819A (en) * | 1998-05-28 | 1999-12-14 | Aisin Seiki Co Ltd | Controller for valve opening/closing time |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 04 30 April 1999 (1999-04-30) * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02 29 February 2000 (2000-02-29) * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 03 30 March 2000 (2000-03-30) * |
Also Published As
Publication number | Publication date |
---|---|
DE50108364D1 (en) | 2006-01-19 |
US20020029754A1 (en) | 2002-03-14 |
DE10033291A1 (en) | 2002-01-17 |
EP1170465B1 (en) | 2005-12-14 |
EP1170465A2 (en) | 2002-01-09 |
JP2002047905A (en) | 2002-02-15 |
US6666179B2 (en) | 2003-12-23 |
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