Valve-gear or valve arrangements actuated non-mechanically

Child Classifications

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• F01L 9/10 by fluid means, e.g. hydraulic
• F01L 9/20 by electric means
• F01L 9/30 Arrangements for setting the actuator position, e.g. the initial position
• F01L 9/40 Methods of operation thereof; Control of valve actuation, e.g. duration or lift