#intake_valve  a valve that controls the flow of fluid through an intake
  supertype:  valve  control consisting of a mechanical device for controlling the flow of a fluid
  part of:  piston_chamber__cylinder  a chamber within which piston moves
     part of:  compressor  a mechanical device that compresses gasses
     part of:  engine_block__cylinder_block__block  a metal casting containing the cylinders and cooling ducts of an engine; "the engine had to be replaced because the block was cracked"
        part of:  internal-combustion_engine__ICE  a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine
           part of:  motorboat__powerboat  a boat propelled by an internal-combustion engine
           part of:  motor_vehicle__motorvehicle__automotive_vehicle  a self-propelled wheeled vehicle that does not run on rails
        part of:  reciprocating_engine__reciprocatingengine  an internal-combustion engine in which the crankshaft is turned by pistons moving up and down in cylinders
     part of:  pump  a mechanical device that moves fluid or gas by pressure or suction
        part of:  engine_cooling_system__cooling_system__coolingsystem  equipment in a motor vehicle that cools the engine
           part of:  motor_vehicle__motorvehicle__automotive_vehicle  a self-propelled wheeled vehicle that does not run on rails
        part of:  fuel_system  equipment in a motor vehicle or aircraft that delivers fuel to the engine
           part of:  aircraft  a vehicle that can fly
           part of:  motor_vehicle__motorvehicle__automotive_vehicle  a self-propelled wheeled vehicle that does not run on rails

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