Combined heater and pump

Details Combined heater and pump Combined heater and pump

1994-12-22

1997-12-23

Hoang, Tu B.

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

F24H 108

Patent

active

057013888

ABSTRACT:
A compact combined heater and pump is disclosed. There is a pump housing forming an internal pump chamber, the housing having both an inlet and an outlet and an opening therethrough. A drive shaft is rotatably mounted in the opening and is driven by a motor located outside the chamber. An impeller is mounted on the drive shaft within the housing and a heater is sandwiched in the chamber between the motor and impeller. Rotation of the shaft can draw liquid in from the inlet, past the heater and through the outlet. A cooling fan attached to the shaft for rotation therewith draws cooling air over control circuitry and then forces the air over the motor.

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