#pump  a mechanical device that moves fluid or gas by pressure or suction
  supertype:  #mechanical_device  mechanism consisting of a device that works on mechanical principles
  subtype:  #air_pump  #aspirator  #auxiliary_pump  #bicycle_pump  #bilge_pump  #centrifugal_pump  #force_pump  #gas_pump  #grease-gun  #hand_pump  #heart-lung_machine  #hydraulic_pump  #lift_pump  #oil_pump  #stirrup_pump  #suction_pump  #water_pump
  part of:  #engine_cooling_system  #fuel_system
  part:  #piston_chamber__cylinder  a chamber within which piston moves
     part:  #intake_valve  a valve that controls the flow of fluid through an intake

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