brake horsepower
21effective horsepower — noun : the net horsepower required to move a vehicle or boat that is the part of the total propelling engine horsepower that remains after deducting losses due to engine friction and propeller and other inefficiencies * * * effective horsepower …
22SAE net horsepower — The brake power (power available at the flywheel or output shaft usually the crankshaft) of a fully equipped engine fitted with all the accessories necessary to perform its intended functions unaided. In 1973, automobile manufacturers began… …
23de Prony brake — dynamometers at a tractor contest in 1910 …
24De Prony brake — The de Prony Brake is a simple device invented by Gaspard de Prony to measure the torque produced by an engine. The term Brake horsepower is one measurement of torque obviously derived from the method of measurement.Essentially the measurement is …
25Band brake — A band brake is a measuring device for loading a rotating shaft and measuring the torque applied to it and is mainly used to determine brake horsepower. In its simplest form an engine is connected to a rotating drum by means of an output shaft. A …
26SAE horsepower — A simple formula of long standing is used to determine horsepower. The formula is: (bore diameter) squared times (number of cylinders) divided by 2.5. This formula is used primarily for licensing purposes and is not very accurate for determining… …
27friction 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 …
28thrust horsepower — The amount of horsepower the engine propeller combination transforms into thrust. The terms brake horsepower and shaft horsepower are more often used for reciprocating engines rather than thrust horsepower. In gas turbine engines, it is the force …
29SAE gross horsepower — A production engine s actual power available at the flywheel or output shaft (usually crankshaft) as tested with an absorption dynamometer. It differs from SAE net horsepower in that many of the accessories (such as alternator, water pump, etc.)… …
30British horsepower — (Bhp) the traditional horsepower, equal toabout 745.7 watts, as opposed to the metric horsepower, which is equal to about 735.5 watts. Note that the symbolbhp, with the lower case b, is used for brake horsepower …
