Invention Grant
- Patent Title: Variable valve timing control apparatus
- Patent Title (中): 可变气门正时控制装置
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Application No.: US12797899Application Date: 2010-06-10
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Publication No.: US08418664B2Publication Date: 2013-04-16
- Inventor: Shigemitsu Suzuki , Naoto Toma
- Applicant: Shigemitsu Suzuki , Naoto Toma
- Applicant Address: JP Kariya-Shi, Aichi-Ken
- Assignee: Aisin Seiki Kabushiki Kaisha
- Current Assignee: Aisin Seiki Kabushiki Kaisha
- Current Assignee Address: JP Kariya-Shi, Aichi-Ken
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2009-144393 20090617
- Main IPC: F01L1/34
- IPC: F01L1/34

Abstract:
A variable valve timing control apparatus includes a driving rotor, a driven rotor coaxially arranged with the driving rotor, a fluid pressure chamber defined between the driving rotor and the driven rotor, a partition portion arranged at one of the driving rotor and the driven rotor and dividing the fluid pressure chamber into advanced and retarded angle chambers, a first fluid control mechanism controlling supply and discharge of a hydraulic fluid to and from the fluid pressure chamber, a first phase restriction portion restricting and releasing a relative rotational phase between the driving rotor and the driven rotor within and from a first restriction range, a second phase restriction portion restricting and releasing the relative rotational phase within and from a second restriction range, and a second fluid control mechanism controlling the supply and discharge of the hydraulic fluid to and from the first and second phase restriction portions individually.
Public/Granted literature
- US20100319641A1 VARIABLE VALVE TIMING CONTROL APPARATUS Public/Granted day:2010-12-23
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