| 摘要 |
A dynamometer is provided having a housing mounted to allow at least partial rotational displacement about its longitudinal axis, with a frictional engaging means connected thereto for engaging the external surface of a rotatable drum. This drum, which is mounted within the housing, is coupled to the prime mover so that the power of the prime mover may be determined by measuring the torque transmitted via the engaging means to the housing. Coolant is circulated through the interior of the drum while the drum is rotating within the housing, thus providing a dynamometer which is not only accurate but is easily disassembled for maintenance. The dynamometer also includes a hydraulic brake mechanism which can be regulated without a variation in the flow rate of the working fluid.
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