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Engine power is the power that an engine can put out. It can be expressed in power units, most commonly kilowatt, pferdestärke (metric horsepower), or horsepower.In terms of internal combustion engines, the engine power usually describes the rated power, which is a power output that the engine can maintain over a long period of time according to a certain testing method, for example ISO 1585.
The Jamaican sprinter Usain Bolt produced a maximum of 3.5 hp (2.6 kW) 0.89 seconds into his 9.58 second 100-metre (109.4 yd) sprint world record in 2009. [15] [failed verification] In 2023 a group of engineers modified a dynamometer to be able to measure how much power a horse can produce. This horse was measured to 5.7 hp (4.3 kW). [16]
A fractional-horsepower motor (FHP) is an electric motor with a rated output power of less than one horsepower (745.7 W) (the term 'fractional' indicates less than one unit). There is no defined minimum output, however, it is generally accepted that a motor with a frame size of less than 35mm square can be referred to as a 'micro-motor'.
An engine or motor is a machine designed to convert one or more forms of energy into mechanical ... Four cylinders and power ratings from 19 to 120 hp (14 to 90 kW ...
0.67 kW (0.9 hp) First commercially available automobile in history Benz Velo: 1894 1.1 kW (1.5 hp; 1.5 PS) First production car [56] Peugeot Type 15: 1897 6 kW (8 hp; 8 PS) Peugeot's first in-house engine [57] Daimler Phoenix 1899 17 kW (23 hp; 23 PS) First four-cylinder road car [58] Mercedes 35 HP: 1901 26 kW (35 hp; 35 PS)
A typical turbocharged V8 diesel engine might have an engine power of 250 kW (340 hp) and a mass of 380 kg (840 lb), [1] giving it a power-to-weight ratio of 0.65 kW/kg (0.40 hp/lb). Examples of high power-to-weight ratios can often be found in turbines.
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The motor size constant and motor velocity constant (, alternatively called the back EMF constant) are values used to describe characteristics of electrical motors. Motor constant [ edit ]