#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
  part:  piston_chamber
  part of:  engine_cooling_system  fuel_system
  subtype:  air_pump__airpump__vacuum_pump  a pump that moves air in or out of something
     subtype:  condensation_pump__diffusion_pump__diffusionpump  vacuum pump used to obtain a high vacuum
     subtype:  inflater__inflator  an air pump operated by hand to inflate something (as a tire)
     subtype:  ion_pump__ionpump  a vacuum pump that removes gas by ionizing the atoms or molecules and adsorbing them on a metal surface
  subtype:  aspirator  a pump that draws air or another gas through a liquid
  subtype:  auxiliary_pump__auxiliarypump__donkey_pump  a supplementary pump available if needed
  subtype:  bicycle_pump__bicyclepump  a small pump that fills bicycle tires with air
  subtype:  bilge_pump__bilgepump  a pump to remove bilgewater
  subtype:  centrifugal_pump__centrifugalpump  a pump that use centrifugal force to discharge fluid into a pipe
  subtype:  force_pump__forcepump  pump used to force a liquid up and expel it under pressure
  subtype:  gas_pump__gaspump__gasoline_pump__island_dispenser  a pump in a service station that draws gasoline from underground storage tanks
  subtype:  grease-gun__gun  a hand-operated pump that resembles a gun; forces grease into parts of a machine
  subtype:  hand_pump  a pump worked by hand
  subtype:  heart-lung_machine  a pump to maintain circulation during heart surgery; diverts blood from the heart and oxygenates it and then pumps it through the body
  subtype:  hydraulic_pump__hydraulicpump__hydraulic_ram__hydraulicram  a water pump that uses the kinetic energy of flowing water to force a small fraction of that water to a reservoir at a higher level
  subtype:  lift_pump  pump used to lift rather than force a liquid up
  subtype:  oil_pump__oilpump  a pump that keeps a supply of oil on moving parts
  subtype:  stirrup_pump__stirruppump  a hand-operated reciprocating pump; used in fighting fires
  subtype:  suction_pump__suctionpump  a pump for raising fluids by suction
     subtype:  stomach_pump__stomachpump  a suction pump used to remove the contents of the stomach
     subtype:  sump_pump  a suction pump for removing liquid from a sump
  subtype:  water_pump__waterpump  the pump in the cooling system of an automobile that cause the water to circulate

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