Viscous fluid heater

Details Viscous fluid heater Viscous fluid heater

1997-07-11

1999-08-17

Leung, Philip H.

Liquid heaters and vaporizers

Friction generator

126247, F22B 306

Patent

active

059377976

ABSTRACT:
A viscous fluid heater includes a housing for accommodating a heating chamber and a heat exchanging chamber. Viscous fluid is contained in the heating chamber, and circulating fluid circulates through the heat exchanging chamber. A cylindrical rotor is located in the heating chamber, which rotates to shear the viscous fluid in the heating chamber and thus generate heat which heats the circulating fluid in the heat exchanging chamber. The cylindrical rotor is hollow, which defines a reservoir chamber within the rotor to contain the viscous fluid. The rotor has at least one, and preferably a plurality of circumferentially spaced apart communicating passages between its interior reservoir chamber and the viscous fluid heating chamber which surrounds the rotor, so that viscous fluid flows from the reservoir chamber into the heating chamber, in which it flows outwardly to the ends of the rotor. The viscous fluid returns to the reservoir chamber via axial passages in the respective end walls of the rotor.

REFERENCES:
patent: 4143639 (1979-03-01), Frenette
patent: 4343291 (1982-08-01), Clausen
patent: 4365614 (1982-12-01), Grover
patent: 4481934 (1984-11-01), Stephenson
patent: 4494524 (1985-01-01), Wagner
patent: 4501231 (1985-02-01), Perkins
patent: 4779575 (1988-10-01), Perkins
patent: 5341768 (1994-08-01), Pope
patent: 5704320 (1998-01-01), Ban et al.

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