EP2118455A1 - Device for the combined locking and rotation angle limitation of a camshaft adjuster - Google Patents
Device for the combined locking and rotation angle limitation of a camshaft adjusterInfo
- Publication number
- EP2118455A1 EP2118455A1 EP07857921A EP07857921A EP2118455A1 EP 2118455 A1 EP2118455 A1 EP 2118455A1 EP 07857921 A EP07857921 A EP 07857921A EP 07857921 A EP07857921 A EP 07857921A EP 2118455 A1 EP2118455 A1 EP 2118455A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking
- rotation
- angle limiting
- link
- rotational angle
- 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
-
- 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
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34453—Locking means between driving and driven members
-
- 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
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34453—Locking means between driving and driven members
- F01L2001/34459—Locking in multiple positions
-
- 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
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34453—Locking means between driving and driven members
- F01L2001/34469—Lock movement parallel to camshaft axis
-
- 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
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34483—Phaser return springs
Definitions
- the combined locking and Drehwinkelbegren- tion device comprises a received in the drive or driven part
- the bolt is guided by the Drehwinkelbegrenzungskulisse with the interposition of a slider, so that instead of the bolt, the slider against the plant the spaced apart in personallysgehchtung, substantially radial boundary wall sections of the boundary wall of the rotational angle limiting link passes.
- the bolt is slidably received for this purpose in the slider, so that it can be moved to its locking position and in its unlocked position.
- a slider has the particular advantage that a clamping of the bolt in early or late position due to a friction torque, which results from a frictional engagement between the bolt and the substantially radial boundary wall portion of the rotational angle limiting link, can be avoided and the bolt thus easy and safe can be brought into its locking position by displacement within the sliding block which bears against the essentially radial boundary wall section of the rotational angle limiting link.
- Figure 3 is a section perpendicular to the axial line N-II in Fig. 2.
- FIG. 4 shows a perspective view of a sealing plate with stepped link for locking in the early position
- the outer rotor 1 is in turn made up of a plurality of rotatably interconnected components.
- the outer rotor 1 comprises a stator 3, for example designed as a sheet-metal part, whose inner lateral surface 4 is provided with a plurality of radial recesses 5, each of which is delimited by radial side walls 6, 7.
- the inner circumferential surface 4 of the stator 3 is accordingly subdivided in the circumferential direction, extending inner peripheral walls 27 and circumferentially extending outer peripheral walls 28, and the inner and outer peripheral walls each interconnecting radial side walls 6, 7.
- the stator 3 is rotatably mounted on the rotor 2 via its inner peripheral walls 27, which abut an outer circumferential surface 8 of the rotor 2.
- the stator 3 may for example be made of sheet steel by means of a chipless forming process, such as a deep drawing process.
- each pressure chamber 10 protrudes, starting from the rotor 2, radially outwardly wing 1 1, whereby the pressure chambers 10 are each divided into two oppositely acting pressure chambers 12, 13, one of which precedes in the direction of rotation of the rotor 2 and the other accordingly lags.
- the vanes 11 are each received in axial grooves 29, which are formed in the outer circumferential surface 8 of the rotor 2.
- a wing 1 1 radially outwardly loading spring element is arranged, thereby causing the wings 1 1 of the outer peripheral wall 28 of the stator 3 sealingly abut.
- the wings 11 integrally with the rotor 2 in the form of projections.
- second housing part 16 Coaxially disposed to the first housing part 15, second housing part 16 forms a second flange 31 which is complementary to the first flange 21 of the first housing part 15 is formed. Further, the second flange 31 is provided with axial bores, which are arranged axially in alignment with the axial bores 22 of the first flange 21.
- the two housing parts 15, 16 are interconnected by connecting means, here screws 23 which engage through the aligned axial bores.
- the above-mentioned axial sealing surfaces for forming the circumferentially distributed pressure chambers 10 are formed by a arranged on the opposite side of the camshaft 19 sealing plate 9 and on the facing side of the camshaft 19 through the bottom surface 17 of the first housing part 15, which the pressure chambers or Close the pressure chambers axially in a pressure-tight manner.
- pressure medium lines through which pressure medium can be supplied to the pressure chambers or derived from these.
- pressure medium By targeted application of pressure medium can be constructed between the pressure chamber pair of each pressure chamber, a pressure gradient, which causes a pivoting of the wings 1 1 and thus a change in the relative rotational position of the rotor 2 to the stator 3.
- a pressure gradient By targeted application of pressure medium can be constructed between the pressure chamber pair of each pressure chamber, a pressure gradient, which causes a pivoting of the wings 1 1 and thus a change in the relative rotational position of the rotor 2 to the stator 3.
- the relative rotational position between the rotor 2 and stator 3 is maintained.
- the piston 33 is urged in the direction of the sealing plate 9.
- the piston 33 can engage in a recess formed by the sealing plate 9 or gate, whereby a positive connection between the rotor 2 and the stator 3 rotatably connected to the sealing plate 9 is made.
- the sealing plate 9 is provided with an axially stepped stile 37 for the piston 33.
- the step link 37 is formed as a radial recess of the radial boundary wall 53 of a central bore 36 of the sealing plate 9.
- the central bore 36 allows attachment of the rotor 2 by means of a central screw on the camshaft 19th
- the cylindrical piston 33 is slidably received in the cavity 54 of a piston sleeve 51.
- the engaging in the rotational angle limiting link 40 piston sleeve 51 is in turn slidably received in the circumferential direction in a not-shown recess between the sealing plate 9 and rotor 2.
- the piston 33 engages in the locking position through the piston sleeve 51 therethrough.
- unlocking position the piston 33 engages in the piston sleeve 51.
- the piston sleeve 51 is moved with the engaging in unlocking position in it piston 33 at a change in the relative rotational position of the rotor 2 to stator 3 in the circumferential direction.
- the piston 33 is urged by the spring element 34 in the bolt backdrop 35. Only in a selectable relative rotational position (base position) of the rotor 2 to the stator 3, the piston 33 can engage in the bolt gate 35.
- step link 37 in such a way that the radial boundary wall sections 44, 46 of the bolt link 35 and the rotational angle limiting link 40 trailing in the rotor rotational direction are arranged approximately axially aligned with each other.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007004184A DE102007004184A1 (en) | 2007-01-27 | 2007-01-27 | Combined locking and rotation limiting device of a camshaft adjuster |
PCT/EP2007/064300 WO2008089876A1 (en) | 2007-01-27 | 2007-12-20 | Device for the combined locking and rotation angle limitation of a camshaft adjuster |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2118455A1 true EP2118455A1 (en) | 2009-11-18 |
EP2118455B1 EP2118455B1 (en) | 2011-10-12 |
Family
ID=39284149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07857921A Not-in-force EP2118455B1 (en) | 2007-01-27 | 2007-12-20 | Device for the combined locking and rotation angle limitation of a camshaft adjuster |
Country Status (6)
Country | Link |
---|---|
US (1) | US8166934B2 (en) |
EP (1) | EP2118455B1 (en) |
CN (1) | CN101600856B (en) |
AT (1) | ATE528487T1 (en) |
DE (1) | DE102007004184A1 (en) |
WO (1) | WO2008089876A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007056550A1 (en) * | 2007-11-23 | 2009-05-28 | Schaeffler Kg | Modular built-up camshaft adjuster with chain or belt pulley |
US8171903B2 (en) | 2008-12-03 | 2012-05-08 | Hyundai Motor Company | Intermediate lock pin type variable valve timing unit for vehicle and continuously variable valve timing device using the same |
JP5569458B2 (en) * | 2011-04-18 | 2014-08-13 | 株式会社デンソー | Valve timing adjustment device |
DE102011085693A1 (en) * | 2011-11-03 | 2013-05-08 | Schaeffler Technologies AG & Co. KG | Phaser |
DE102012206338B4 (en) * | 2012-04-18 | 2021-06-02 | Schaeffler Technologies AG & Co. KG | Camshaft adjuster with stator cover unit for automatic adjustment of locking play |
DE102013203245A1 (en) * | 2013-02-27 | 2014-08-28 | Schaeffler Technologies Gmbh & Co. Kg | Statortopf with insert disc to reduce the axial bearing play |
DE102014009091A1 (en) * | 2014-06-19 | 2015-12-24 | Hilite Germany Gmbh | Swivel motor adjuster for a camshaft |
DE102016107986A1 (en) | 2015-11-04 | 2017-05-04 | Hilite Germany Gmbh | Hydraulic valve and connecting rod with a hydraulic valve |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100242589B1 (en) * | 1996-04-04 | 2000-03-02 | 와다 아끼히로 | Variable valve timing apparatus for internal combustion engine |
JP3918971B2 (en) * | 1998-04-27 | 2007-05-23 | アイシン精機株式会社 | Valve timing control device |
DE19860418B4 (en) * | 1998-12-28 | 2008-09-11 | Schaeffler Kg | Device for changing the timing of gas exchange valves of an internal combustion engine, in particular camshaft adjusting device with impeller |
JP4142204B2 (en) * | 1999-05-19 | 2008-09-03 | 本田技研工業株式会社 | Valve operating characteristic variable device |
JP4440384B2 (en) * | 1999-09-24 | 2010-03-24 | アイシン精機株式会社 | Valve timing control device |
JP4207141B2 (en) * | 2000-06-09 | 2009-01-14 | 株式会社デンソー | Valve timing adjustment device |
JP2002122009A (en) * | 2000-08-09 | 2002-04-26 | Mitsubishi Electric Corp | Valve timing adjusting device |
DE10213831A1 (en) * | 2001-03-28 | 2002-11-07 | Denso Corp | Variable valve timing device |
JP2002295275A (en) * | 2001-03-29 | 2002-10-09 | Denso Corp | Valve timing adjustment device |
JP3736489B2 (en) * | 2002-03-27 | 2006-01-18 | 株式会社デンソー | Control method of valve timing adjusting device |
JP4177197B2 (en) * | 2003-08-08 | 2008-11-05 | 株式会社日立製作所 | Valve timing control device for internal combustion engine |
DE10354586A1 (en) * | 2003-11-21 | 2005-06-16 | Ina-Schaeffler Kg | Hydraulic phaser and method of operating the same |
JP2006170085A (en) * | 2004-12-16 | 2006-06-29 | Aisin Seiki Co Ltd | Valve opening-closing timing control device and setting method of minimum torque |
EP1681442A1 (en) * | 2005-01-18 | 2006-07-19 | Delphi Technologies, Inc. | Phaser for controlling the timing between a camshaft and a timing gear |
DE102007015064A1 (en) * | 2007-03-29 | 2008-10-02 | Schaeffler Kg | Camshaft adjuster and method for setting a limiting position for a camshaft adjuster |
-
2007
- 2007-01-27 DE DE102007004184A patent/DE102007004184A1/en not_active Withdrawn
- 2007-12-20 US US12/524,505 patent/US8166934B2/en not_active Expired - Fee Related
- 2007-12-20 AT AT07857921T patent/ATE528487T1/en active
- 2007-12-20 WO PCT/EP2007/064300 patent/WO2008089876A1/en active Application Filing
- 2007-12-20 EP EP07857921A patent/EP2118455B1/en not_active Not-in-force
- 2007-12-20 CN CN2007800505288A patent/CN101600856B/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2008089876A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20100101516A1 (en) | 2010-04-29 |
ATE528487T1 (en) | 2011-10-15 |
CN101600856A (en) | 2009-12-09 |
US8166934B2 (en) | 2012-05-01 |
CN101600856B (en) | 2013-06-05 |
EP2118455B1 (en) | 2011-10-12 |
WO2008089876A1 (en) | 2008-07-31 |
DE102007004184A1 (en) | 2008-07-31 |
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