- overhead cam
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A type of internal combustion engine design which has the inlet and exhaust valves in the cylinder head and has the camshaft(s) up above the valves too.
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overhead cam
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overhead cam — (OHC) See overhead camshaft double overhead cam dual overhead cam engine single overhead cam … Dictionary of automotive terms
overhead cam engine — See dual overhead cam engine … Dictionary of automotive terms
double overhead cam — (DOHC) An engine with two camshafts located above the cylinders. One drives the intake valves and the other operates the exhaust valve. In a single overhead cam engine (SOHC), one cam has enough lobes to drive both the intake and exhaust valves.… … Dictionary of automotive terms
single-overhead cam — (SOHC) An engine with a single overhead camshaft to operate both intake and exhaust valves. See overhead cam … Dictionary of automotive terms
dual overhead cam engine — See double overhead cam engine … Dictionary of automotive terms
single overhead cam — (SOHC) The camshaft is located between the valves and is driven by a chain or belt from the crankshaft; the valves are normally opened by short rocker arms. See overhead cam … Dictionary of automotive terms
Overhead — may be: Overhead (business), the ongoing operating costs of running a business Engineering overhead, ancillary design features required by a component of a device Computational overhead, ancillary computation required by an algorithm or program… … Wikipedia
Overhead camshaft — A cylinder head sliced in Fifths shows two overhead camshafts one above each of the two valves. Overhead cam (OHC) valvetrain configurations place the engine camshaft within the cylinder heads, above the combustion chambers, and drive the valves… … Wikipedia
Overhead valve — OHV redirects here. OHV may also refer to Off highway vehicle. Components of a pushrod valve actuation system … Wikipedia
cam — [1] A designed bump on a shaft or disc which causes a rocking motion in an adjacent part. [2] A metal disc with irregularly shaped lobes used in the camshaft to activate the opening and closing of the valves and in the distributor, to force the… … Dictionary of automotive terms
