WO2007017130A3 - Locking device for a camshaft adjuster of an internal combustion engine - Google Patents

Locking device for a camshaft adjuster of an internal combustion engine Download PDF

Info

Publication number
WO2007017130A3
WO2007017130A3 PCT/EP2006/007436 EP2006007436W WO2007017130A3 WO 2007017130 A3 WO2007017130 A3 WO 2007017130A3 EP 2006007436 W EP2006007436 W EP 2006007436W WO 2007017130 A3 WO2007017130 A3 WO 2007017130A3
Authority
WO
WIPO (PCT)
Prior art keywords
combustion engine
internal combustion
locking
locking element
camshaft adjuster
Prior art date
Application number
PCT/EP2006/007436
Other languages
German (de)
French (fr)
Other versions
WO2007017130A2 (en
Inventor
Andreas Strauss
Original Assignee
Schaeffler Kg
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 Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2007017130A2 publication Critical patent/WO2007017130A2/en
Publication of WO2007017130A3 publication Critical patent/WO2007017130A3/en

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

Abstract

The invention relates to a locking device which allows a camshaft adjuster (10) to be locked in a basic position relative to the degree of adjusting freedom thereof when an internal combustion engine is turned off and restarted. According to the invention, two locking elements (21, 22) are provided, a first one (21) of which has a circumferential tolerance (25) of about zero in the locked position while the second locking element (22) has a circumferential tolerance (26) that is greater than the other circumferential tolerance (25). The first locking element (21) is effective when the internal combustion engine is turned off and restarted while the second locking element (22) is effective instead of the released first locking element (21) at idling speed and at a low operating speed, for example. This makes it possible to ensure reliable locking and releasing while keeping production costs low.
PCT/EP2006/007436 2005-08-05 2006-07-27 Locking device for a camshaft adjuster of an internal combustion engine WO2007017130A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005036917.0 2005-08-05
DE200510036917 DE102005036917A1 (en) 2005-08-05 2005-08-05 Locking device for a camshaft adjuster of an internal combustion engine

Publications (2)

Publication Number Publication Date
WO2007017130A2 WO2007017130A2 (en) 2007-02-15
WO2007017130A3 true WO2007017130A3 (en) 2009-09-11

Family

ID=37607211

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/007436 WO2007017130A2 (en) 2005-08-05 2006-07-27 Locking device for a camshaft adjuster of an internal combustion engine

Country Status (2)

Country Link
DE (1) DE102005036917A1 (en)
WO (1) WO2007017130A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007011282A1 (en) 2007-03-08 2008-09-11 Schaeffler Kg Device for adjusting the camshaft of an internal combustion engine
DE102007041552A1 (en) * 2007-08-31 2009-03-05 Schaeffler Kg Device for the variable adjustment of the timing of gas exchange valves of an internal combustion engine
DE102008021315A1 (en) * 2008-04-29 2009-11-05 Schaeffler Kg Device for adjusting the rotational position of a camshaft relative to a crankshaft of an internal combustion engine
JP2010127252A (en) * 2008-11-28 2010-06-10 Toyota Motor Corp Variable valve gear for internal combustion engine
DE102017126174A1 (en) * 2017-11-09 2019-05-09 Schaeffler Technologies AG & Co. KG Hydraulic camshaft adjuster

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858572A (en) * 1987-09-30 1989-08-22 Aisin Seiki Kabushiki Kaisha Device for adjusting an angular phase difference between two elements
DE19623818A1 (en) * 1995-06-14 1996-12-19 Nippon Denso Co Control device for varying a rotational or angular phase between two rotating shafts, preferably applicable to a valve timing control device for an internal combustion engine
EP0859130A1 (en) * 1997-02-14 1998-08-19 Toyota Jidosha Kabushiki Kaisha System for regulating valve timing of internal combustion engine
DE19914767A1 (en) * 1998-03-31 1999-10-14 Aisin Seiki Valve control device for IC engine
DE19918910A1 (en) * 1998-04-27 1999-11-04 Aisin Seiki Adjustable hydraulic valve timing control appliance for IC engines
DE10127168A1 (en) * 2000-08-09 2002-02-28 Mitsubishi Electric Corp Adaptation device for the valve setting of an internal combustion engine
DE10253496A1 (en) * 2001-11-21 2003-09-04 Ina Schaeffler Kg Hydraulic camshaft adjuster for internal combustion engine, has internal and external rotors connected to driving wheel and hub of internal rotor contains one hydraulically swiveling blade

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000230511A (en) * 1998-12-07 2000-08-22 Mitsubishi Electric Corp Vane type hydraulic actuator
DE10213831A1 (en) * 2001-03-28 2002-11-07 Denso Corp Variable valve timing device
DE10246838A1 (en) * 2002-10-08 2004-04-29 Daimlerchrysler Ag Locking device for a camshaft adjuster

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858572A (en) * 1987-09-30 1989-08-22 Aisin Seiki Kabushiki Kaisha Device for adjusting an angular phase difference between two elements
DE19623818A1 (en) * 1995-06-14 1996-12-19 Nippon Denso Co Control device for varying a rotational or angular phase between two rotating shafts, preferably applicable to a valve timing control device for an internal combustion engine
EP0859130A1 (en) * 1997-02-14 1998-08-19 Toyota Jidosha Kabushiki Kaisha System for regulating valve timing of internal combustion engine
DE19914767A1 (en) * 1998-03-31 1999-10-14 Aisin Seiki Valve control device for IC engine
DE19918910A1 (en) * 1998-04-27 1999-11-04 Aisin Seiki Adjustable hydraulic valve timing control appliance for IC engines
DE10127168A1 (en) * 2000-08-09 2002-02-28 Mitsubishi Electric Corp Adaptation device for the valve setting of an internal combustion engine
DE10253496A1 (en) * 2001-11-21 2003-09-04 Ina Schaeffler Kg Hydraulic camshaft adjuster for internal combustion engine, has internal and external rotors connected to driving wheel and hub of internal rotor contains one hydraulically swiveling blade

Also Published As

Publication number Publication date
WO2007017130A2 (en) 2007-02-15
DE102005036917A1 (en) 2007-02-08

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