Motor car heater

Claim 1

A motor car heater and an air blower construction having a rotary heat exchanger with said heat exchanger comprising a plurality of axially spaced annular flat heat exchanger rings having an open center space forming an air inlet, a plurality of axially extending liquid flow pipes connecting said rings and forming liquid inflow and outflow channels, and a saucer-shaped wheel having liquid inflow and outlet ducting means therein connecting with said liquid inflow and outflow channels; a volute housing surrounding said rotary heat exchanger and having at least one air inlet; a drive motor having a drive shaft positioned in said air inlet with an end of said shaft connected to an supporting one axial side of said saucer-shaped wheel; liquid seal means connected to said saucer-shaped wheel on the side opposite the motor shaft, said liquid seal means communicating with said outlet ducting means and being connectable with the inlet side of a liquid cooling system of a motor car engine; liquid connecting means associated with the inflow ducting means of the saucer-shaped wheel connectable with the outlet side of a liquid cooling system of a motor car engine; and valve means in said inflow and outflow ducting means movable between open and closed positions to regulate flow of fluid through said rotary heat exchanger whereby heat may be controllably transferred to air being drawn through the air inlet by the sheer forces exerted on the air by the axially spaced rings when said heat exchanger is rotated.