DT Dyno

Hydraulic Dynamometers

DT type Hydraulic dynamometers are available with a large variety of power ranges. The standard range extends from 700 kW up to 4,500 kW. Due to their robust construction, compact assembly and the use of high quality materials, these dynamometers deliver their high running performance at extremely low maintenance costs.

Segment: Automotive

Division: Mechatronics

Manufacturing Company: HORIBA Europe GmbH

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 DT700-1 is a dynamometer for one direction of rotation.

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 control unit and power unit

Torque/Speed Measuring Systems

Speed Measurement Error:	rpm	±1, not smaller than 0.025% of FSD
Torque Measuring Error:	%	Accuracy class 0.2% of FSD hysteresis error <0.2%, linearity <0.2% temperature drift <0.2% per 10K change of ambient temp.
Speed Control Error*:	rpm	±10
Torque control Error*:	%	±1% of FSD

*Related to the hydraulic dyno, power control unit and HORIBA test stand controller

Colour - Light Grey (RAL 7035)
Transport and Storage Temperature - -50°C to +85°C
Working Temperature - 0°C to 60°C without coolant additives

Dynamometers with one rotor and one direction of rotation

	Power [kW]	Max Speed [rpm]	Rated Torque [Nm]	Rotor Inertia [kgm²]	Weight [kg]
DT700-1	700	7500	3000	0.30	370
DT900-1	900	6500	4000	0.6	500
DT1200-1	1200	5500	7500	1.2	650
DT2100-1	2100	4000	15000	3.9	1300
DT3600-1	3600	3000	35000	18.4	3200
DT4500-1	4500	2700	50000	29.5	3400

Dynamometers with one rotor and two directions of rotation

	Power [kW]	Max Speed [rpm]	Rated Torque [Nm]	Rotor Inertia [kgm²]	Weight [kg]
DT700-2	700	7500	2600	0.3	370
DT900-2	900	6500	4000	0.6	500
DT1200-2	1200	5500	6000	1.2	650
DT2100-2	2100	4000	15000	3.9	1300
DT3600-2	3600	3000	30000	18.4	3200
DT4500-2	4500	2700	40000	29.5	3400