Viscous fluid type heat generator

A viscous fluid type heat generator comprising:

• a housing having therein a heating chamber and a heat radiating chamber arranged adjacent to the heating chamber for circulating a circulating fluid through said heat radiating chamber, said heating chamber having opposite wall surfaces;
• a drive shaft rotatably supported by the housing;
• a rotor rotatably arranged in the heating chamber and driven by the drive shaft, said rotor having front and rear end surfaces, liquid-tight clearances being formed between the front and rear end surfaces of the rotor and the wall surfaces of the heating chamber, respectively;
• a viscous fluid contained in the heating chamber, said viscous fluid existing in the liquid-tight clearances so as to be heated during the rotation of the rotor;
• and
• wherein the rotor is fitted on the drive shaft in such a manner that the rotor cannot rotate relative to the drive shaft but can move axially relative to the drive shaft, and the front and rear end surfaces of the rotor have wedge effect producing means, respectively, for correcting an axial offset of the rotor in the heating chamber by a wedge effect caused via the pressure of the viscous fluid during the rotation of the rotor.