Push-pull valve assembly for an engine cylinder

Details Push-pull valve assembly for an engine cylinder Push-pull valve assembly for an engine cylinder

1996-04-23

1997-06-10

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 9022, 123 904, 1231888, F01L 902, F01L 126, F01L 118

Patent

active

056366027

ABSTRACT:
A push-pull valve assembly for an engine cylinder includes an engine defining a gas passageway in fluid communication with a hollow piston cylinder via a first opening and a second opening. An inward valve seat is positioned in the first opening adjacent the hollow piston cylinder. An outward valve seat is positioned in the second opening adjacent the gas passageway. A first valve member has a first stem and a first enlarged portion with an inward valve face positioned in the hollow piston cylinder. A second valve member has a second stem and a second enlarged portion with an outward valve face position in the gas passageway. The first valve member and the second valve member are operably coupled via a mechanical or hydraulic linkage. A spring is utilized to bias the inward valve face against the inward valve seat to close the first opening and the outward valve face against the outward valve seat to close the second opening.

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