double overhead cam

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. The DOHC engine is considered to be a very sophisticated and more efficient engine; but is sometimes more difficult to adjust the valves. Also called "twin overhead camshaft." See engine type.

Dictionary of automotive terms. 2015.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • overhead cam — (OHC) See overhead camshaft double overhead cam dual overhead cam engine single overhead cam …   Dictionary of automotive terms

  • double overhead camshaft — See double overhead cam …   Dictionary of automotive terms

  • dual overhead cam engine — See double overhead cam engine …   Dictionary of automotive terms

  • 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

  • overhead camshaft — (OHC) The camshaft that activates the valves is mounted above the head and driven by a long timing chain or cam chain. In contrast, a pushrod engine has the camshaft below the cylinders so that thin rods (pushrods) are moved by the camshaft and… …   Dictionary of automotive terms

  • 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

  • Alfa Romeo Twin Cam engine — Infobox Automobile engine name=Alfa Romeo Twin Cam engine manufacturer=Alfa Romeo production=1954 ndash;1994 type=DOHC 2 valve I4 displacement =1.3 L (1290 cc/78 in³) 1.6 L (1570 cc/95 in³) 1.8 L (1779 cc/108 in³) 2.0 L (1962 cc/119 in³)… …   Wikipedia

  • twin overhead camshaft — See double overhead cam …   Dictionary of automotive terms

  • Dual Overhead Camshaft — Schnitt durch einen Zylinderkopf, oben die beiden obenliegenden Nockenwellen Direkt arbeitende OHC Nockenwelle. Links Auslass , rechts Einlassventil …   Deutsch Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”