Cooling arrangement for an electromotor

Details Cooling arrangement for an electromotor Cooling arrangement for an electromotor

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.

REFERENCES:
patent: 4963778 (1990-10-01), Jensen et al.
patent: 5156535 (1992-10-01), Budris et al.
patent: 6011331 (2000-01-01), Gierer et al.
patent: 6082974 (2000-07-01), Takemoto et al.
patent: 6561772 (2003-05-01), Volkert et al.
patent: 3842588 (1990-06-01), None
patent: 4122529 (1993-01-01), None
patent: 10160820 (2002-08-01), None

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