Valve-gear or valve arrangements, e.g. lift-valve gear

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES

Subclass:

CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES

Child Classifications

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• F01L 1/02 Valve drive
• F01L 1/12 Transmitting-gear between valve drive and valve
• F01L 1/2 Adjusting or compensating clearance, i.e. lash adjustment
• F01L 1/26 characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift valves per cylinder
• F01L 1/28 characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
• F01L 1/3 characterised by the provision of positively opened and closed valves, i.e. desmodromic valves
• F01L 1/32 characterised by the provision of means for rotating lift valves, e.g. to diminish wear
• F01L 1/34 characterised by the provision of means for changing the timing of the valves without changing the duration of opening
• F01L 1/36 peculiar to machines or engines of specific type other than four-stroke cycle
• F01L 1/44 Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different valves
• F01L 1/46 Component parts, details, or accessories, not provided for in preceding subgroups