Fluid friction heater

Details Fluid friction heater Fluid friction heater

1981-03-20

1984-06-19

Makay, Albert J.

Stoves and furnaces

Heaters

Frictional

122 26, 237 1R, F22B 3710

Patent

active

044548613

ABSTRACT:
A fluid friction heater is disclosed. The heater includes a housing having a cylindrical inner surface. At least nearly circumferential, closely spaced grooves are formed in the inner surface of the housing, the depth of the grooves being small relative to the diameter of the surface itself. A drum is mounted within the housing and has a cylindrical outer surface in close proximity to the inner surface of the housing. The outer surface of the drum has at least nearly circumferential, closely spaced grooves formed in it as well. The pitch of the grooves in the respective surfaces are different from one another. A liquid is injected into the space between the inner surface of the housing and the outer surface of the drum. The housing and the drum rotate relative to one another so that the liquid passing between their respective surfaces is sheared and agitated by the respective grooves in the surfaces.

REFERENCES:
patent: 4143639 (1979-03-01), Frenette

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