What Is Brake Horsepower

So what does brake horsepower even mean and whats the difference between hp and bhp.

What is brake horsepower. This work is calculated without the consideration of the effects of any auxiliary component that may slow down the actual speed of the motor. The term brake horsepower bhp refers to a device called prony brake invented by gaspard de prony which was used to measure engine power in the early 1900s. Horsepower of reciprocating engines particularly in the larger sizes is often expressed as indicated horsepower which is determined from the pressure in the cylinders. Brake or shaft horsepower is.

Brake horsepower bhp is the power measured at the crankshaft just outside the engine before the losses of power caused by the gearbox efficiency and drive train efficiency. Well for starters there is a difference between horsepower and brake horsepower. For an electric motor brake horsepower is the mechanical horsepower available at the shaft at specified rpm and full load current. Sometimes referred to as pure horsepower brake horsepower is measured within the engines output shaft.

In horsepower turbine or motor is termed brake horsepower or shaft horsepower depending on what kind of instrument is used to measure it. Brake horsepower bhp is the amount of work generated by a motor under ideal conditions. Brake horsepower is the horsepower of an engine measured by the degree of resistance offered by a brake that represents the useful power that the machine can develop. On the other hand brake horsepower measures the hp of an engine without considering the loss in power that is caused by some parts of the engine like the generator gearbox water pump and other auxiliary parts.

If a customer asks you about brake horsepower dont start talking to them about horsepower. What hp actually measures is the maximum rate of acceleration and the top speed of the car. Brake horsepower bhp is the amount of power generated by a motor without taking into consideration any of the various auxiliary components that may slow down the actual speed of the motor. You dont need to increase an engines bhp to get an increase in a vehicles whp.