Device for controlling the flow of intake and exhaust gases in a

Details Device for controlling the flow of intake and exhaust gases in a Device for controlling the flow of intake and exhaust gases in a

1995-06-30

1996-08-20

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 65PD, 123 65VD, F02B 7502, F01L 100

Patent

active

055468985

ABSTRACT:
Disclosed is a device for controlling the flow of intake and exhaust gases in an internal combustion engine, which comprises a cylinder head with a plurality of cylinders each forming combustion chamber for burning air/fuel mixture to produce a mechanical energy, the combustion chamber having an intake valve for receiving an air/fuel mixture and an exhaust valve for exhausting burnt gases, a blocking means for isolating the side of the intake valve from the side of the exhaust valve so as to prevent a fresh air/fuel mixture and the burnt gases from interfering with each other in the overlap interval between the final stage of the exhaust stroke and the beginning stage of the intake stroke during which the intake and exhaust valves simultaneously maintain the opening state, and a cam shaft for driving the intake and exhaust valves and the blocking means.

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