Submersible motor unit

Details Submersible motor unit Submersible motor unit

1998-06-23

2000-02-08

Gravini, Stephen

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

4174233, 4174237, F04B 4906

Patent

active

060221968

ABSTRACT:
A submersible motor unit comprises an electrical drive motor, an electrical control means for setting the rotary speed and/or the torque of the motor, a common heat-conducting housing for the motor and the control means as well as a connection cable electrically connected to the control means wherein this means is provided on the end side of the motor distant to the pump. In particular for an improved disposal, repair and cooling of the submersible motor unit the electrical control means is formed as a cartridge-like constructional unit which can be inserted into the common housing and which can be electrically plug connected to the drive motor, and the housing of the control means connected to the unshielded connection cable bears with its outer circumferential surface on the inner circumferential surface of the common housing.

REFERENCES:
patent: 4930996 (1990-06-01), Jensen et al.
patent: 4930997 (1990-06-01), Bennett
patent: 5025185 (1991-06-01), Reinoehl
patent: 5028212 (1991-07-01), Brophey et al.
patent: 5028218 (1991-07-01), Jensen et al.
patent: 5100298 (1992-03-01), Shibata et al.
patent: 5493765 (1996-02-01), Klebl et al.
patent: 5763973 (1998-06-01), Cramer
patent: 5941695 (1999-08-01), Jensen et al.

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