EP1170465A3 - Camshaft for engine valve drive - Google Patents

Camshaft for engine valve drive Download PDF

Info

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
Application number
EP01112335A
Other languages
German (de)
French (fr)
Other versions
EP1170465B1 (en
EP1170465A2 (en
Inventor
Gerold Sluka
Edwin Palesch
Wolfgang Stephan
Axel Willi Jochim
Andreas Knecht
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.)
Dr Ing HCF Porsche AG
Hilite Germany GmbH
Original Assignee
Dr Ing HCF Porsche AG
Hydraulik Ring 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
Application filed by Dr Ing HCF Porsche AG, Hydraulik Ring GmbH filed Critical Dr Ing HCF Porsche AG
Publication of EP1170465A2 publication Critical patent/EP1170465A2/en
Publication of EP1170465A3 publication Critical patent/EP1170465A3/en
Application granted granted Critical
Publication of EP1170465B1 publication Critical patent/EP1170465B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01L1/3442—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.

EP01112335A 2000-07-07 2001-05-19 Camshaft for engine valve drive Expired - Lifetime EP1170465B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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