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Type of variable valve technology

- Oct 10, 2018 -

Variable valve technology can bring very attractive engine performance improvements, so engineers have been eager to achieve variable control of engine valves since the engine was developed. The development of variable valve technology has two main branches to date:


One: VVT (Variable Valve Timing) variable valve timing technology, represented by the VVT solenoid manufacturer: Toyota(VVT-i) and BMW(Vanos) ;


Second: VVL (Variable Valve lift) variable valve lift technology, represented by Honda's VTEC, Mitsubishi's MIVEC and Porsche's Vario-Cam.

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