Pumps – Motor driven – Including means utilizing pump fluid for augmenting cooling,...
Reexamination Certificate
2006-09-05
2006-09-05
Freay, Charles G. (Department: 3746)
Pumps
Motor driven
Including means utilizing pump fluid for augmenting cooling,...
C417S423800, C310S062000
Reexamination Certificate
active
07101157
ABSTRACT:
The present invention provides a high-pressure blower comprising a fan arrangement which includes a fan, and a fan housing for conveying working air. An electromotor drives the fan via a motor shaft to provide motor self-ventilation by generating a cooling air stream flowing through the motor due to a cooling wheel driven by the rotor. A wall section separates the interior space of the fan housing accommodating the fan airtight from the interior space of the blower accommodating the electromotor so that the cooling air stream flowing through the electromotor is separated and independent of the air flow of the working air conveyed to the fan.
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Bamberger Bernhard
Best Dieter
Brausch Birgit
Buerkert Martin
Fiedler Erich
Brinks Hofer Gilson & Lione
EBM-PAPST Mulfingen GmbH & Co. KG
Freay Charles G.
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