Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations (of pumps or pumping installations specially adapted for elastic fluids F04C28/00)

Child Classifications

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• F04C 14/02 specially adapted for several machines or pumps connected in series or in parallel
• F04C 14/04 specially adapted for reversible machines or pumps
• F04C 14/06 specially adapted for stopping, starting, idling or no-load operation
• F04C 14/08 characterised by varying the rotational speed
• F04C 14/10 characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
• F04C 14/18 characterised by varying the volume of the working chamber (by changing the positions of inlet or outlet openings F04C14/10)
• F04C 14/24 characterised by using valves controlling pressure or flow rate, e.g. discharge valves (F04C14/10 takes precedence)
• F04C 14/28 Safety arrangements; Monitoring