Valve drive, valve adjustment during operation, or other valve control, not provided for in groups F01L15/00 - F01L29/00 (sensing elements measuring the variable or condition to be controlled or regulated F01B25/04)

Child Classifications

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• F01L 31/02 with tripping-gear (for oscillatory valves F01L31/06); Tripping of valves
• F01L 31/06 with tripping-gear specially for oscillatory valves; Oscillatory tripping-valves, e.g. of Corliss type
• F01L 31/08 Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear