Dry-pit submersible pump having a fan and a torque-relieving mec

Details Dry-pit submersible pump having a fan and a torque-relieving mec Dry-pit submersible pump having a fan and a torque-relieving mec

1997-10-03

2000-06-27

Freay, Charles G.

Pumps

Including disengageable rotary or frangible drive connection

4174233, 417 53, 416204R, F04B 1703

Patent

active

060799587

ABSTRACT:
A dry-pit submersible pump using a totally enclosed fan-cooled (TEFC) electric motor to power the pump. A release mechanism prevents the fan from creating excessive drag when submerged in water. The fan cools the motor when the water level is below the motor, and the surrounding water combines with the fan to cool the motor when the water level rises to at least partially surround the motor. When the fan is at least partially submerged, the release mechanism substantially prevents the fan from imposing a load on the motor due to the surrounding water. The release mechanism can take the form of a shear key, a torque-release clutch or flexible fan blades.

REFERENCES:
patent: 1651881 (1927-12-01), Frickey
patent: 2164485 (1939-07-01), Yantis
patent: 2460849 (1949-02-01), Senn
patent: 2687249 (1954-08-01), Papanek et al.
patent: 2991051 (1961-07-01), Jones
patent: 3746472 (1973-07-01), Rupp
patent: 4078480 (1978-03-01), Luck
patent: 4306838 (1981-12-01), Trainer
patent: 4446391 (1984-05-01), Sekine et al.
patent: 4566855 (1986-01-01), Costabile et al.
patent: 4604035 (1986-08-01), Roberts
patent: 5028211 (1991-07-01), Mordue et al.
patent: 5244348 (1993-09-01), Karls et al.
patent: 5322416 (1994-06-01), Karls et al.
patent: 5418412 (1995-05-01), Brucker
patent: 5622481 (1997-04-01), Thut
patent: 5642986 (1997-07-01), Rose

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