Invention Application
- Patent Title: Valve timing control apparatus for internal combustion engine
- Patent Title (中): 内燃机气门正时控制装置
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Application No.: US11227125Application Date: 2005-09-16
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Publication No.: US20060060161A1Publication Date: 2006-03-23
- Inventor: Kotaro Watanabe , Hidekazu Yoshida , Tomoya Tsukada , Hideyuki Miyasaka , Jiro Miyasaka , Ayako Miyasaka
- Applicant: Kotaro Watanabe , Hidekazu Yoshida , Tomoya Tsukada , Hideyuki Miyasaka , Jiro Miyasaka , Ayako Miyasaka
- Assignee: HITACHI, LTD.
- Current Assignee: HITACHI, LTD.
- Priority: JP2004-270717 20040917
- Main IPC: F01L1/34
- IPC: F01L1/34

Abstract:
A valve timing control apparatus for an internal combustion engine includes a housing having a housing body and shoes protruding from an inner circumferential surface of the housing body to define actuation spaces therebetween, a vane rotor disposed in the housing and having a rotor body and vanes protruding from an outer circumferential surface of the rotor body to divide the actuation spaces into circumferentially alternating first and second hydraulic chambers, a plurality of spring units arranged in at least either the first hydraulic chambers or the second hydraulic chambers to bias the vane rotor in a rotational direction with respect to the housing, and a rotation restriction mechanism capable of restricting a relative rotation of the housing and the vane rotor to prevent the shoes and the vanes from contact with each other within the hydraulic chambers in which the spring units are arranged.
Public/Granted literature
- US07225774B2 Valve timing control apparatus for internal combustion engine Public/Granted day:2007-06-05
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