Liquid pump responsive to temperature

Details Liquid pump responsive to temperature Liquid pump responsive to temperature

1991-12-05

1992-09-29

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

Responsive to pump or pump fluid temperature

417366, 417372, 4174237, 41742311, 41742312, 41742314, F04D 1500, F04D 2958

Patent

active

051510162

ABSTRACT:
A liquid pump comprising a motor sealed up in an inner cylindrical housing and cooled off by a liquid flowing in and out of a liquid cooling room formed by the cylindrical walls of the inner cylindrical housing and an outer cylindrical housing, and a liquid sensor serving to control the power of the motor by means of a resistance alteration of a temperature sensing means in the liquid sensor.

REFERENCES:
patent: 3911943 (1975-10-01), Athey et al.
patent: 4013383 (1977-03-01), Rule
patent: 5040950 (1991-08-01), Dalquist, III et al.

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