Engine valve train component that bears directly on the cam, opening and closing an intake or exhaust valve.
Also called a "valve follower": the cylindrically shaped component that presses against the lobe of a camshaft and moves up and down as the cam lobe rotates. Most valve lifters have an oil-lubricated hardened face that slides on the cam lobe. So-called "roller lifters", however, have a small roller in contact with the cam lobe: thereby reducing the friction between the cam lobe and the lifter.
see hydraulic lash adjuster
Also called a "valve follower" it is a cylindrical component that presses against the lobe of a camshaft and moves up and down as the cam lobe rotates.
Hydraulic or mechanical device that transmits cam rotation to vertical valve movement to open and close the valves in an engine.
A cylindrically shaped hydraulic or mechanical device in the valve train that rides on the camshaft lobe to lift the valve off its seat.
sometimes called a "cam follower," a component in engine designs that use a linkage system between a cam and the valve it operates. The lifter typically translates the rotational motion of the cam to a reciprocating linear motion in the linkage system.
The cylindrical component that presses against the lobe of a camshaft and moves up and down as the cam lobe rotates, opening and closing an intake or exhaust valve. Virtually all modern valve lifters are of an hydraulic design that uses a cushion foil to promote quiet operation.