Retainer for supporting valve shaft in variable intake system

Details Retainer for supporting valve shaft in variable intake system Retainer for supporting valve shaft in variable intake system

2005-11-16

2008-10-14

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

C123S184550, C123S336000

Reexamination Certificate

active

07434559

ABSTRACT:
A retainer device is provided suitable for supporting a valve shaft in a variable intake system. Preferred retainer devices can stably support a valve shaft of a variable intake system and may suitably include a shaft support part that can engage a valve shaft of the variable intake system; a fork part that can engage a valve shaft locking bolt; and a stop part spaced from the fork part by a distance sufficient to position the locking bolt between the fork part and the stop part. In preferred systems, even if a valve shaft locking bolt fastening the valve shaft is undesirably loosened during engine operation, the locking bolt is prevented from being completely removed from the retainer, thereby avoiding potential engine damage.

REFERENCES:
patent: 5687684 (1997-11-01), Verkleeren
patent: 6135418 (2000-10-01), Hatton
patent: 6378480 (2002-04-01), Narayanaswamy et al.
patent: 1 363 030 (2003-11-01), None
patent: 01-148618 (1989-06-01), None
patent: 03-213708 (1991-09-01), None
patent: 06-264914 (1994-09-01), None
patent: 101153206 (1998-06-01), None
patent: 2000-100420 (2000-04-01), None

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