Reciprocable member with anti-float arrangement

Details Reciprocable member with anti-float arrangement Reciprocable member with anti-float arrangement

2006-07-10

2011-12-20

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Spring

C123S090670, C123S090160

Reexamination Certificate

active

08079339

ABSTRACT:
An exhaust valve arrangement includes a cylinder having a top end, an exhaust conduit connected to the cylinder by an opening in the top end of the cylinder, the opening comprising a valve seat, a valve member comprising a valve stem and a valve head on the valve stem, the valve member being movable between a closed position in which the valve head is received in the valve seat and an open position in which the valve head is spaced from the valve seat, and a resilient member arranged to urge the valve member to a closed position. A piston is mounted relative to the valve stem, the piston being disposed in a second cylinder in flow communication with the exhaust conduit and arranged such that a change in pressure in the exhaust conduit changes a degree of compression of the resilient member.

REFERENCES:
patent: 2342003 (1944-02-01), Meyer
patent: 4446825 (1984-05-01), Giardini et al.
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patent: 5664531 (1997-09-01), Kim
patent: 5743225 (1998-04-01), Sakurai
patent: 6113011 (2000-09-01), Potz et al.
patent: 2003/0200954 (2003-10-01), Zsoldos et al.
patent: 920695 (1954-11-01), None
patent: 3529768 (1987-02-01), None
patent: 0269587 (1988-06-01), None
patent: 0992657 (2000-04-01), None
Abstract in English for DE 3529768; Feb. 1987.
International Search Report for corresponding International Application PCT/US2006/026592.
Supplementary European Search Report for corresponding application EP 06 78 6670.
Official Action from corresponding European Application 06780670.7.

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