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 ?
Straight nock travel means the nock traces a straight line during the power stroke.
7-liter Power Stroke V8 diesel engine is 35 percent quieter at idle than the previous model for a listener standing outside in front of the grille.
7-litre Power Stroke V8 turbo diesel engine in a new 2014 Ford Super Duty F-350 Lariat at its Kentucky Truck Plant.
In a report accompanying the publication of myosin's crystal structure, a team of researchers collaborated to produce a detailed model of the sequence of events that brings about myosin's power stroke.
Most important is the double-supported working rod that carries the load from the approach stroke on through the power stroke.
SEATTLE - The Angels came into their three-game series against the Seattle Mariners having discovered their power stroke over the weekend in Chicago.
All-new Power Stroke engine utilizes Tenneco aftertreatment technology to meet stringent new emissions requirements
5-inch power stroke to propel bolts at 395 fps with 133 foot-pounds of energy.
7-liter Power Stroke engine continues as the heart of Super Duty performance for 2015.
But his power stroke this season has been a surprise.
Most notable of these characteristics is a bird-like coracoid- a bone in the shoulder that helps translate muscular force into the power stroke of a wing.
This adds length to the power stroke and in turn increases speed.