Internal combustion engine and valve timing control method

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Reexamination Certificate

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C123S347000, C123S403000

Reexamination Certificate

active

10732483

ABSTRACT:
An internal combustion engine includes: a variable valve timing mechanism for changing a valve timing of at least one of an intake valve and an exhaust valve; a pressure for detecting an intake pressure and an exhaust pressure of the internal combustion engine that pulsate in association with the actions of the piston, the intake valve, and the exhaust valve; and controller for setting the valve timing based on a magnitude relationship between the intake pressure and the exhaust pressure detected by the pressure detector.

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