overhead valve

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overhead valve

A valve located in the upper part of the aircraft reciprocating engine cylinder head. Both the inlet and outlet valves are overhead valves. See induction stroke.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Prestwich's company, JA Prestwich Industries, supplied the overhead valve engine for this model and other British makes.
Under the bonnet was a four-cylinder 996cc overhead valve engine which was described by one motoring writer of the time as 'super-smooth' - back then, it probably was.
In an overhead valve engine, the tappet is fitted in the engine block.
It was a joy to dismantle and rebuild this 1300cc overhead valve engine. An engineering masterpiece from Ford.
The Traction Avant combined for the first time front-wheel-drive, monocoque chassis/body construction, torsion bar suspension and an overhead valve engine with removable cylinder sleeves.
The 4-inch PTV405T has an 11-hp overhead valve engine and handles 528 gallons per minute.
This overhead valve engine, with a bore x stroke of 101.60 x 91.40 mm, is rated 62 hp at 1800 rpm on CNG and is targeted toward gen-sets with outputs up to 35 kW.
The Peugeot 203 took on the look of an American-designed Sedan and was powered by a new four- cylinder 1290cc overhead valve engine churning out 42bhp.
The vehicle was originally fitted with a V12 overhead valve engine of 6 1/2 litres, but for practical and economy reasons was replaced in 1946 with the current six-cylinder 4-litre unit.
Another, an overhead valve engine. Or, perhaps, something useless but stylish like tail fins.
In the GC25S model a Hercules 2.7 liter, 4-cylinder, overhead valve engine (gasoline or propane) provides high torque at low speeds for greater productivity in ramp loading situations and where high hydraulic flow is required.