piston – מילון אנגלי-אנגלי
piston
n.
moving cylinder used to compress gas fluid or air
Piston
A
piston is a component of
reciprocating engines, reciprocating
pumps,
gas compressors and
pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a
cylinder and is made gas-tight by
piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the
crankshaft via a
piston rod and/or
connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the
fluid in the cylinder. In some engines, the piston also acts as a
valve by covering and uncovering ports in the cylinder wall.
Piston
Noun
1. United States neoclassical composer (1894-1976)
(synonym) Walter Piston
(hypernym) composer
piston
Noun
1. mechanical device that has a plunging or thrusting motion
(synonym) plunger
(hypernym) mechanical device
(part-holonym) reciprocating engine
(part-meronym) piston ring
piston
nm.
piston; wirepulling, plunger; valve, device which changes the pitch in a wind instrument (Music)
pistón
nm.
piston, moving cylinder used to compress gas fluid or air; key
