Different Combinations of Hydraulic Pumps & Motors
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Today we will discuss:
Pump and Motor Combinations
Certain types of pumps and motors can be put together to give different system requirements for different applications.
A constant displacement pump in combination with a fixed displacement motor produces a fixed hydraulic horsepower put out by the pump. The torque and shaft speed are constant with the motor.
A constant displacement pump with a variable displacement motor will give you a fixed hydraulic horsepower that is delivered in the motor. The shaft speed and torque, are variables in the motor.
A variable displacement pump combined with a fixed displacement motor yields a constant torque at the motor. The pumps flow rate could be changed, the horsepower is handed to the motor and the motor shaft speed can be varied.
A system that handles both a variable displacement pump and a variable displacement motor has the capacity of using a variable speed torque and horsepower.
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