EP2136041A3 - Valve to shift a camshaft - Google Patents

Valve to shift a camshaft Download PDF

Info

Publication number
EP2136041A3
EP2136041A3 EP09005039A EP09005039A EP2136041A3 EP 2136041 A3 EP2136041 A3 EP 2136041A3 EP 09005039 A EP09005039 A EP 09005039A EP 09005039 A EP09005039 A EP 09005039A EP 2136041 A3 EP2136041 A3 EP 2136041A3
Authority
EP
European Patent Office
Prior art keywords
pressure chamber
wall
piston
valve
inlet channel
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
EP09005039A
Other languages
German (de)
French (fr)
Other versions
EP2136041B1 (en
EP2136041A2 (en
Inventor
Andreas Knecht
Dirk Pohl
Patrick Gautier
Markus Todt
Jan Eimert
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.)
Hilite Germany GmbH
Original Assignee
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 Hydraulik Ring GmbH filed Critical Hydraulik Ring GmbH
Publication of EP2136041A2 publication Critical patent/EP2136041A2/en
Publication of EP2136041A3 publication Critical patent/EP2136041A3/en
Application granted granted Critical
Publication of EP2136041B1 publication Critical patent/EP2136041B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L2001/0475—Hollow camshafts
    • 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
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • 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
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F01L2001/34433—Location oil control valves

Abstract

The valve has a piston which is arranged longitudinally within a bore, from whose inner wall (79) a pressure medium connection (P) and two working connections (A,B) come out. The piston has a pressure chamber-inlet channel (32) and a pressure chamber-outlet channel arranged separately from the inlet channel. The piston has a center slit, whose wall is connected to the pipe wall (80), such that the wall of the slit separates the pressure chamber-outlet channel from the pressure chamber-inlet channel.
EP09005039A 2008-06-19 2009-04-06 Valve to shift a camshaft Not-in-force EP2136041B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008028846 2008-06-19

Publications (3)

Publication Number Publication Date
EP2136041A2 EP2136041A2 (en) 2009-12-23
EP2136041A3 true EP2136041A3 (en) 2010-07-14
EP2136041B1 EP2136041B1 (en) 2011-06-08

Family

ID=41082411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09005039A Not-in-force EP2136041B1 (en) 2008-06-19 2009-04-06 Valve to shift a camshaft

Country Status (2)

Country Link
EP (1) EP2136041B1 (en)
AT (1) ATE512285T1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010019005B4 (en) * 2010-05-03 2017-03-23 Hilite Germany Gmbh Schwenkmotorversteller
DE102010049551A1 (en) * 2010-10-25 2012-04-26 Schaeffler Technologies Gmbh & Co. Kg Control valve for a camshaft adjuster
DE102010060181B4 (en) * 2010-10-26 2014-08-21 Hilite Germany Gmbh central valve
DE102010060180B4 (en) * 2010-10-26 2017-06-29 Hilite Germany Gmbh central valve
JP6354560B2 (en) 2014-12-12 2018-07-11 株式会社デンソー Electromagnetic actuator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1447602A1 (en) * 2003-02-17 2004-08-18 Delphi Technologies, Inc. Oil flow control valve for a cam phaser
DE102005041393A1 (en) * 2005-09-01 2007-03-08 Schaeffler Kg Control valve for a device for changing the timing of an internal combustion engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3666072B2 (en) 1995-09-13 2005-06-29 アイシン精機株式会社 Switching valve
DE19853670C5 (en) 1998-11-20 2019-01-10 Hilite Germany Gmbh Camshaft adjustment device
DE102004038252A1 (en) 2004-05-14 2005-12-15 Ina-Schaeffler Kg Control valve for a device for changing the timing of an internal combustion engine
DE102005013085B3 (en) 2005-03-18 2006-06-01 Hydraulik-Ring Gmbh Hydraulic valve for automobile, has check valve with band formed of closed ring, which serves as opening-free band and is made of spring steel, where steel forms ring by overlap of section of bands at about one hundred and eighty degree
DE102006012775B4 (en) 2006-03-17 2008-01-31 Hydraulik-Ring Gmbh Fast cam phaser hydraulic circuit, in particular for camshaft adjuster, and corresponding control
DE102006012733B4 (en) 2006-03-17 2008-03-27 Hydraulik-Ring Gmbh Fast cam phaser hydraulic circuit, in particular for camshaft adjuster, and corresponding control
DE102007026831B3 (en) 2007-06-06 2008-10-02 Hydraulik-Ring Gmbh Electrohydraulic valve has plastic composite material of piston with mean thermal expansion coefficient which in specific temp. range deviates by 50% max. from mean linear thermal expansion coefficients of aluminum alloy of sleeve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1447602A1 (en) * 2003-02-17 2004-08-18 Delphi Technologies, Inc. Oil flow control valve for a cam phaser
DE102005041393A1 (en) * 2005-09-01 2007-03-08 Schaeffler Kg Control valve for a device for changing the timing of an internal combustion engine

Also Published As

Publication number Publication date
EP2136041B1 (en) 2011-06-08
ATE512285T1 (en) 2011-06-15
EP2136041A2 (en) 2009-12-23

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