intake valve(n = noun.artifact) - a valve that controls the flow of fluid through an intake;
is a kind of valve
is a part of cylinder, piston chamber

aortic valve, atrioventricular valve, ball valve, bicuspid valve, blow valve, butterfly valve, cardiac valve, clack valve, clapper valve, escape valve, exhaust valve, foot valve, heart valve, ileocecal valve, intake, intake manifold, kingston valve, left atrioventricular valve, mitral valve, mitral valve prolapse, mitral valve stenosis, pilot valve, poppet valve, pulmonary valve, pyloric valve, rectifying valve, relief valve, right atrioventricular valve, safety valve, semilunar valve, shunt valve, slide valve, sluice valve, thermionic valve, throttle valve, tricuspid valve, valve, valve rocker