Spring apparatus and valve train of internal combustion...

Details Spring apparatus and valve train of internal combustion... Spring apparatus and valve train of internal combustion...

2007-02-15

2008-12-02

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Valve

Wear feature

C123S090660, C137S375000, C251S282000, C267S064250

Reexamination Certificate

active

07458356

ABSTRACT:
A bellows unit and a compression coil spring are located in series with each other between a first member and a second member. The bellows unit has an inner bellows, an outer bellows, and first and second end members. A sealed space is defined in the bellows unit. A compressed gas is sealed in the sealed space. The bellows unit is caused to extend and contract in the direction of an axis by the compressed gas. The sealed space contains an uncompressible liquid that can exchange heat with the gas. The liquid is an example of a heat exchange material.

REFERENCES:
patent: 5586529 (1996-12-01), Vallve
patent: 6182684 (2001-02-01), Frankenberg
patent: 6233926 (2001-05-01), Bailey et al.
patent: 6279544 (2001-08-01), Rumpf
patent: 6293266 (2001-09-01), Oetting
patent: 6378848 (2002-04-01), Uchida et al.
patent: 6382246 (2002-05-01), Mori et al.
patent: 1 067 011 (2001-01-01), None
patent: 58-217711 (1983-12-01), None
patent: 10-288012 (1998-10-01), None

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