Dynamometer for measuring power output of a prime mover driving a rotating shaft having plural torque drive bars arranged around an outer periphery of a stator plate

A dynamometer for measuring the power output of a prime mover driving a rotating shaft comprising:

• a water tank containing coolant water;
• a generally cylindrical rotor tube extending through said water tank in a sealed manner and coupled to, for rotating with, said rotating shaft;
• a fixed stator shaft extending through said water tank and said rotor tube in a sealed manner;
• a disc-shaped stator plate fixedly attached to said stator shaft and disposed within said rotor tube;
• brake means disposed on an outer periphery of said stator plate and adapted to engage and exert a braking force on an inner surface of said rotating rotor tube;
• plural friction material liners disposed about and engaged by said brake means for engaging the inner surface of said rotor tube when said brake means exerts a braking force on said rotating rotor tube;
• plural torque drive bars disposed about the outer periphery of said stator plate in a spaced manner with one of the plural friction material liners disposed between and engaging a pair of adjacent torque drive bars, wherein resistance to rotation of said rotor tube by said brake means representing the output torque of the prime mover is transferred from said rotor tube via said friction material liners and said torque bars to said stator plate and stator shaft.