friction horsepower


Also found in: Acronyms.

friction horsepower

[′frik·shən ′hȯrs‚pau̇·ər]
(mechanical engineering)
Power dissipated in a machine through friction.

friction horsepower

friction horsepowerclick for a larger image
Friction horsepower.
The amount of horsepower required to turn the crankshaft, pistons, gears, and accessories in a reciprocating engine and to compress the air into the cylinders. The brake horsepower actually delivered at the output shaft of the engine is the total horsepower developed by the engine, less the friction horsepower.
Mentioned in ?