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Patent Searching and Data


Title:
VALVE OPENING-CLOSING TIMING CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/129477
Kind Code:
A1
Abstract:
The present invention is a valve opening-closing timing control device which, even if the amount of fluid leakage from an advance angle chamber and a delay angle chamber increases in conjunction with a rise in temperature, can supply the advance angle chamber and the delay angle chamber with fluid and suppress fluctuations in the phases of relative rotation. A driven rotor is coupled to a cam shaft by an attachment member, and a spool is movably provided to the interior of a cylindrical wall of the attachment member. A first flow passage that connects a first port of the cylindrical wall and the advance angle chamber, and a second flow passage that connects a second port of the cylindrical wall and the delay angle chamber are formed in the driven rotor. The thermal expansion coefficient of the material forming the driven rotor is larger than the thermal expansion coefficient of the material forming the attachment member.

Inventors:
ASAHI TAKEO (JP)
NOGUCHI YUJI (JP)
Application Number:
PCT/JP2015/053902
Publication Date:
September 03, 2015
Filing Date:
February 13, 2015
Export Citation:
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Assignee:
AISIN SEIKI (JP)
International Classes:
F01L1/356
Foreign References:
JP2010255499A2010-11-11
JP2012057578A2012-03-22
JPH0224013U1990-02-16
JP2011256786A2011-12-22
Other References:
See also references of EP 3112624A4
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
Patent business corporation R&C (JP)
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