Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof

Child Classifications

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• F01L 2003/11 2nd only CPC only CPC only
• F01L 2003/25 2nd only +5 CPC CPC only CPC only
• F01L 3/02 Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials IPC+CPC Available in IPC and CPC
• F01L 3/06 Valve members or valve-seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge (for rotating lift-valves F01L1/32) IPC+CPC Available in IPC and CPC
• F01L 3/08 Valves guides; Sealing of valve stem, e.g. sealing by lubricant +1 CPC IPC+CPC Available in IPC and CPC
• F01L 3/10 Connecting springs to valve members IPC+CPC Available in IPC and CPC
• F01L 3/12 Cooling of valves IPC+CPC Available in IPC and CPC
• F01L 3/20 Shapes or constructions of valve members, not provided for in preceding subgroups of this group +1 CPC IPC+CPC Available in IPC and CPC
• F01L 3/22 Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats IPC+CPC Available in IPC and CPC
• F01L 3/24 Safety means or accessories, not provided for in preceding sub- groups of this group IPC+CPC Available in IPC and CPC