CAMSHAFT PHASER

WIPO Patent Application WO/2019/204984

A1

A camshaft phaser, comprising a stator (1), a rotor (2) and a locking assembly (3), wherein the rotor (2) is disposed at a radial inner side of the stator (1) and is capable of rotating relative to the stator (1), and a plurality of sets of oil chambers that are distributed circumferentially are formed between the rotor (2) and the stator (1), each set of oil chambers comprising a first oil chamber (A) and a second oil chamber (B) that are separated by rotor blades (22) of the rotor (2). When the camshaft phaser is in a locked state in which the rotor (2) is locked by the locking assembly (3) so as be incapable of rotating relative to the stator (1), the first oil chamber (A) and second oil chamber (B) in at least one oil chamber among the plurality of sets of oil chambers communicate such that, in the locked state, oil of the first oil chamber (A) may flow into the second oil chamber (B) such that a predetermined amount of oil may be retained in the second oil chamber (B). The described camshaft phaser eliminates high-frequency noise.

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GUO WENPING (CN)
QIAN QIWEI (CN)

PCT/CN2018/084268

October 31, 2019

April 24, 2018

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SCHAEFFLER TECHNOLOGIES AG (DE)
GUO WENPING (CN)

F01L1/34

CN102606250A	2012-07-25
CN103732869A	2014-04-16
CN102840003A	2012-12-26
US20100042306A1	2010-02-18
US6308672B1	2001-10-30

LINDA LIU & PARTNERS (CN)

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