Fluid friction vehicle heaters

Details Fluid friction vehicle heaters Fluid friction vehicle heaters

1998-02-25

1999-09-07

Bennett, Henry A.

Heating systems

Heat and power plants

Vehicle

237 123B, 126247, 122 26, B60H 102

Patent

active

059473762

ABSTRACT:
A viscous fluid type heater includes a heating chamber for holding viscous fluid and a rotor located in the heating chamber. A holding chamber is located below the heating chamber to communicate with the heating chamber. A plunger, which is actuated by a solenoid, is movable between a forward position for maximizing the volume of the holding chamber and a rearward position for minimizing the volume of the holding chamber. When the plunger is at the forward position, viscous fluid is discharged from the heating chamber to the holding chamber. When the plunger is at the rearward position, viscous fluid is supplied from the holding chamber to the heating chamber. This allows the load of the heater to be removed or reinstated selectively. In an engine-driven vehicle, the engine can thus started without being hindered by the heater.

REFERENCES:
patent: 4974778 (1990-12-01), Bertling
patent: 5743467 (1998-04-01), Ban et al.

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