A hydraulic dynamometer is a device used to measure the power output of engines motors or other rotating machines It works on the principle of absorbing mechanical energy and converting it into heat through fluid resistance usually water or oil The system consists of a rotor connected to the engine under test and a stator fixed to the housing As the rotor turns in the fluid it creates resistance which is controlled by adjusting the flow of the fluid The braking force produced is measured to calculate torque and speed which are then used to determine power output Hydraulic dynamometers are commonly used for testing automotive engines industrial motors and agricultural equipment because they provide smooth load control and can handle high power levels

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Hydraulic dynamometer specification

Type Water brake or oil brake hydraulic absorption dynamometer

Power capacity 10 kW to 5000 kW depending on model

Speed range 300 to 10000 rpm depending on application

Torque range 10 Nm to 50000 Nm

Absorption medium Water or hydraulic oil

Operating pressure 2 to 10 bar for water brake type higher for oil brake systems

Cooling requirement Continuous water supply 2 to 5 bar typical

Torque measurement Strain gauge load cell or mechanical lever type

Speed measurement Optical or magnetic pickup sensor

Connectivity Direct coupling flange mount or universal joint

Data output Analog 0 to 10 volt 4 to 20 milliamp RS 232 RS 485 or USB

Construction Cast iron or steel rotor and stator with corrosion resistant coating

Applications Engine testing motor testing PTO testing research and development 

A hydraulic dynamometer is a device used to measure the power output of engines motors or other rotating machines It works on the principle of absorbing mechanical energy and converting it into heat through fluid resistance usually water or oil The system consists of a rotor connected to the engine under test and a stator fixed to the housing As the rotor turns in the fluid it creates resistance which is controlled by adjusting the flow of the fluid The braking force produced is measured to calculate torque and speed which are then used to determine power output Hydraulic dynamometers are commonly used for testing automotive engines industrial motors and agricultural equipment because they provide smooth load control and can handle high power levels

Hydraulic dynamometer specification

Type Water brake or oil brake hydraulic absorption dynamometer
Power capacity 10 kW to 5000 kW depending on model
Speed range 300 to 10000 rpm depending on application
Torque range 10 Nm to 50000 Nm
Absorption medium Water or hydraulic oil
Operating pressure 2 to 10 bar for water brake type higher for oil brake systems
Cooling requirement Continuous water supply 2 to 5 bar typical
Torque measurement Strain gauge load cell or mechanical lever type
Speed measurement Optical or magnetic pickup sensor
Connectivity Direct coupling flange mount or universal joint
Data output Analog 0 to 10 volt 4 to 20 milliamp RS 232 RS 485 or USB
Construction Cast iron or steel rotor and stator with corrosion resistant coating

Applications Engine testing motor testing PTO testing research and development