power stroke


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Related to power stroke: Intake stroke

power stroke

[′pau̇·ər ‚strōk]
(mechanical engineering)
The stroke in an engine during which pressure is applied to the piston by expanding steam or gases.

power stroke

The stroke in the operating cycle of a reciprocating engine in which both the inlet and the exhaust valves are closed, the fuel-air mixture has been ignited and burned, and the piston is being forced downward by expanding gases. See four-stroke cycle.
References in periodicals archive ?
As the power stroke ends and the recovery stroke begins, these long setae collapse from a fan into a tight bundle.
By far the largest of these muscles are the pectorals (in the breast), which pull the wing forward and down during the power stroke.
0L Power Stroke reman turbo is the culmination of extensive product research, development and testing.
7-liter Power Stroke turbo diesel V8 producing a best-in-class 925 lb.
Post-workout chocolate milk will increase your daily calcium intake, and increase the likelihood of an optimal power stroke.
Ford announced that the newest version of the Power Stroke diesel engine--this one designed and built by Ford instead of Navistar--will debut in the 2011 Ford F-Series Super Duty, available in the spring.
Power kits generally consist of a high-flow performance air filter and more generous carburetor jets that provide a bit more air/fuel mixture for a stronger power stroke.
The cycle keeps repeating and there is a power stroke with every turn of the crankshaft, just as with a 2-cycle engine.
SEATTLE - The Angels came into their three-game series against the Seattle Mariners having discovered their power stroke over the weekend in Chicago.