Valve device

Details Valve device Valve device

2005-04-01

2008-11-25

Wolfe, Jr., Willis R (Department: 3747)

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

C123S188600, C123S568120, C123S568260

Reexamination Certificate

active

07455056

ABSTRACT:
A valve device includes a valve housing body having a passage for fluid, a valve guide formed in the valve housing body, a valve stem sliding in the valve guide for opening and closing the valve, a hydraulic actuator for opening and closing a valve, and a hydraulic control valve for controlling the hydraulic actuator, in which a scraper is provided on an end of the passage side of the valve guide for scraping the deposits on the valve stem. Further, the hydraulic actuator and the hydraulic control valve are integrated with the valve housing body. Furthermore, the device is provided with a nozzle oriented toward the valve guide and having an orifice for jetting pressured oil for cooling.

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International Preliminary Report on Patentability, Chapter I of the Patent Cooperation Treaty for PCT/JP2005/006498, 5 sheets.
Microfilm of specification and drawings annexed to request of Japanese Utility Model No. 89174/1981 (Laid open No. 200767/1982) Nippondenso Co., Ltd. Dec. 21, 1982.
Microfilm of specification and drawings annexed to the request of Japanese Utility Model No. 177514/1980 (Laid Open No. 101343/1982); Komatsu Ltd., Jun. 22, 1982.
Koran Office Action dated Sep. 8, 2008 and English translation thereof issued in counterpart Japanese Appln. No. 2008-7014514.

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