Invention Grant
- Patent Title: Valve timing control apparatus for internal combustion engine
- Patent Title (中): 内燃机气门正时控制装置
-
Application No.: US13443395Application Date: 2012-04-10
-
Publication No.: US08499732B2Publication Date: 2013-08-06
- Inventor: Atsushi Watanabe
- Applicant: Atsushi Watanabe
- Applicant Address: JP Hitachinaka-shi
- Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee Address: JP Hitachinaka-shi
- Agency: Foley & Lardner LLP
- Priority: JP2009-045333 20090227; JP2009-046208 20090227; JP2009-046226 20090227
- Main IPC: F01L1/34
- IPC: F01L1/34

Abstract:
In a housing body of an engine valve timing control apparatus, a vane rotor includes a vane, wherein the vane and shoes of the housing body define advance and retard chambers. The housing body is formed with a pulley adapted to winding of a belt, and formed with first bolt holes extending axially through the housing body, and formed with a sealing recess at an open axial end. A plate is fixedly inserted in the sealing recess, and formed with second bolt holes facing the first bolt holes. An annular first sealing ring is arranged between an inside periphery of the sealing recess and an outside periphery of the plate. An annular second sealing ring is arranged between the plate and an axial end surface of one of the shoes, wherein the second sealing ring extends circumferentially around one of the second bolt holes.
Public/Granted literature
- US20120192819A1 VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2012-08-02
Information query