Title:
CAMSHAFT PHASER AND ASSEMBLY METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/113830
Kind Code:
A1
Abstract:
A camshaft phaser, comprising a cover unit (1), a front cover (2), a spring (4), a rotor (3) and a stator (5); a spring retainer (11) of the cover unit (1) is approximately cup-shaped and comprises a projection (141) that protrudes toward a radial outer side from a peripheral wall (11B) thereof; the front cover (2) comprises a front cover recess (23) recessed toward the radial outer side, and the rotor (3) comprises a rotor recess (34) recessed toward the radial outer side; the front cover (2) and the rotor (3) are formed such that, when the camshaft phaser is pre-assembled, a part of the rotor recess (34) is obscured by the front cover (2) when viewed in the axial direction along a side of the front cover (2) that is far from the rotor (3); after the spring retainer (11) is inserted into the front cover (2) and the rotor (3) along the axial direction of the camshaft phaser, the cover unit (1) rotates under the action of the torque of the spring such that the projection of the spring retainer (11) is stopped in the axial direction by an inner peripheral edge of the front cover (2). Further provided is an assembly method for a camshaft phaser. During actual use, since the cover unit (1) is stopped in the axial direction by the front cover (2), a limiting part does not need to be added to the camshaft phaser, and the camshaft phaser does not fall off easily.
More Like This:
| JPH02298614 | VALVE TIMING CONTROL DEVICE FOR ENGINE |
| JP4327047 | Valve timing adjuster |
| WO/2011/001702 | VALVE TIMING CONTROL DEVICE |
Inventors:
LI XIN (CN)
HE YANHUA (CN)
HE YANHUA (CN)
Application Number:
PCT/CN2017/115904
Publication Date:
June 20, 2019
Filing Date:
December 13, 2017
Export Citation:
Assignee:
SCHAEFFLER TECHNOLOGIES AG (DE)
LI XIN (CN)
LI XIN (CN)
International Classes:
F01L1/34; F01L1/344
Foreign References:
| US20100089352A1 | 2010-04-15 | |||
| CN101900005A | 2010-12-01 | |||
| CN105673116A | 2016-06-15 | |||
| DE102016213797A1 | 2017-07-20 | |||
| US8113159B2 | 2012-02-14 | |||
| CN103061840A | 2013-04-24 |
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
Download PDF: