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Valve train system for use in internal combustion engine, has lift cam that changes lift amount of intake valve, fuel ratio sensor that increase compression ratio by subsequently opening and closing exhaust valve
Valve train system for use in internal combustion engine, has lift cam that changes lift amount of intake valve, fuel ratio sensor that increase compression ratio by subsequently opening and closing exhaust valve
The system has lift cam that changes a lift amount of an intake valve (1). Fuel ratio sensor adopted to increase a compression ratio of the combustion chamber (8) by opening and closing an exhaust valve (4) subsequently after an intake stroke until a pressure within the chamber becomes equal to exhaust passage pressure. An Independent claim is also included for a control method of a valve train system.
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