Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Patent
1994-09-28
1997-01-14
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
F01L 1300
Patent
active
055929087
ABSTRACT:
According to a control strategy, a cylinder valve control device is monitored and operation of the engine is modified. The cylinder valve control device includes a driving shaft driven by the engine to drive an intermediate member which in turn drives a cam arranged to open an engine intake valve, and a driver which is operative in response to a command to vary an amount of eccentricity of the intermediate member with respect to a shaft axis of the driving shaft. During one mode of engine operation, the intermediate member is supported in a support for rotation about an axis in eccentric condition with respect to the shaft axis to accelerate and decelerate the cam with respect to rotation of the driving shaft. During another mode of engine operation, the intermediate member is in concentric condition with respect to the shaft axis to provide a synchronous motion of the cam with rotation of the driving shaft. In response to the eccentricity of the intermediate member, the engine operation is modified.
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Hara Seinosuke
Hidaka Akira
Lo Weilun
Unisia Jecs Corporation
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