Valve driving apparatus and internal combustion engine...

Details Valve driving apparatus and internal combustion engine... Valve driving apparatus and internal combustion engine...

2005-03-08

2005-03-08

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090160, C123S090310, C123S090600

Reexamination Certificate

active

06863038

ABSTRACT:
A shim attaching and detaching surface has a sectional portion with a smaller diameter than a base circle of a cam surface in a state in which the shim attaching and detaching surface of a cam is located on a tappet roller, and therefore the tappet roller and an arm member can be moved upward. Since an inner side of a top surface of a tappet guide is inclined, if the arm member is tilted along this inclination, one end of the arm member can be raised, and a clearance is formed in a space from a tappet shim. Accordingly, by inserting a slim plate-shaped or rod-shaped jig128from the clearance, the tappet shim37EXcan be attached and detached.

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Patent Abstracts of Japan for JP04-187807 published on Jul. 6, 1992.
Patent Abstracts of Japan for JP2003-003811 published on Jan. 8, 2003.
Patent Abstracts of Japan for JP2002-364319 published on Dec. 18, 2002.
Patent Abstracts of Japan for JP2003-003812 published on Jan. 8, 2003.
Patent Abstracts of Japan for JP2003-041914 published on Feb. 13, 2003.
Patent Abstracts of Japan for JP2003-201814 published on Jul. 18, 2003.

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