Pumps – Motor driven – Including means utilizing pump fluid for augmenting cooling,...
Patent
1994-02-22
1995-03-28
Bertsch, Richard A.
Pumps
Motor driven
Including means utilizing pump fluid for augmenting cooling,...
4174238, 310 52, F04B 1700
Patent
active
054011450
ABSTRACT:
An electric motor operated impeller has a drive motor having a motor shaft, a stator and a rotor rotated about a rotary axis, an impeller housing having a receiving casing which extends in direction of the rotary axis of the rotor and accommodating the electric drive motor. The receiving casing has a wall against which the stator of the drive motor radially abuts a bottom and an opposite edge. A support supports the shaft of the motor and is provided with throughflow openings for cooling air. The wall of the casing has at least one channel-shaped expansion extending parallel to the rotary axis and formed so that the expansion is open toward the edge of the casing and closed toward the bottom of the casing.
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Bleger Claude
Goehre Jochen
Muschelknautz Claudius
Bertsch Richard A.
Korytnyk Peter
Robert & Bosch GmbH
Striker Michael J.
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