overhead camshaft

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overhead camshaft

[′ō·vər‚hed ′kam‚shaft]
(mechanical engineering)
A camshaft mounted above the cylinder head.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

overhead camshaft

overhead camshaft
The camshaft of an aircraft reciprocating engine, located above the cylinder head, which operates the valves directly without the aid of the push rods.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
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With dual overhead cams, 24 valves, electronically controlled sequential fuel injection and a tuned intake system, this engine will rev high enough to make enthusiasts grin.
It is to be equipped with a Yamaha-sourced 4.4-litre V8 engine, coupled with dual overhead cams.
* Four valves per cylinder, and dual overhead cams with infinitely variable cam phasing
At the same time, displacement means the engine makes 350 horsepower without the strain and internal pressures found in high-output, small displacement engines." The engine is a 60[degrees] V8 with four valves per cylinder and dual overhead cams. There is variable camshaft timing and multi-point fuel injection.
Imagine, for example, that your company decided to revamp its global engine lineup around a 500-cc cylinder with a head design that supports dual overhead cams, four valves per cylinder, direct injection, and turbocharging.
The engine has dual overhead cams, continuously variable intake and exhaust valve timing, polymer coating on the pistons, and other features that provide performance for the vehicle.
I need about 30% of my engines to be what I call 'high-feature' engines'"--as in dual overhead cams, four valves per cylinder, variable-valve timing, etc.--"I need about 70% of my engines to be what I call 'high-value' engines for the masses: They don't care how many valves.
The engines all have dual overhead cams, variable valve timing, electronic throttle control ...
They have dual overhead cams and four valves per cylinder.
The all-aluminum 5.6 liter engine features cast-iron cylinder liners, graphite-coated pistons, a microfinished forged-steel crankshaft, chain-driven dual overhead cams, and a structural aluminum oil pan.