DT Dynos

One or Two directions of rotation
Usually, the dynamometers are designed for one direction of rotation. In this direction, they are adjusted for an optimal torque at different speeds. However, we are also able to supply dynamometers for two directions of rotation. The maximum torque of these is slightly lower than that of the dynamometers with one direction of rotation. In the type designation, the number of directions of rotation is represented by the figure behind the size of the dynamometer. That means that DT400-1 is a dynamometer for one direction of rotation.

If high power at high speed is required from fast-running dynamometers, e.g. for fast-running Diesel engines, DYNABAR dynamometers with two rotors are available. These dynamometers allow the
same maximum speed as the ones with one rotor, however, the maximum torque doubles. In the type designation, dynamometers with two rotors are characterised by a “2” directly behind the DT: DT2-4500-1 is a hydraulic dynamometer with two rotors for one direction of rotation and a maximum power of 4500 kW.

APPLICATIONS
The hydraulic dynamometers are available in different sizes and constructions so that a great variety
of combustion engines can be tested, e.g.:

• Combustion engines for passenger cars and commercial vehicles
• Aircraft engines and turbines
• Large engines for trains

BENEFITS

• Robust and long-lasting, even in heavy duty use
• Excellent price/performance ratio (Euro/kW) as compared with eddy current dynamometers and AC machines
• High quality materials
• Simple maintenance due to patented flexure supports
• Exceptional control characteristics (torque response times typical 1 sec) when used with HORIBA controlunit and power unit