Driving mechanism for a pump
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United States of America Patent
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-
Jul 16, 2002
Grant Date -
N/A
app pub date -
Jun 12, 2000
filing date -
Dec 23, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a drive mechanism for a pump (10) implemented by means of a drive motor (20), the rotational speed and torque of which are influenced by a frequency converter (30). The frequency converter (30) is arranged on a heat dissipator (40) confining a flow of the pressure liquid guided to the pump (10). It is advantageous to also arrange the drive motor (20) inside the said heat dissipator (40), for this makes it possible to perform intense forced air cooling of a pump-drive motor system without the necessity of an additional cooling liquid. The drive motor (20) preferably has a central arrangement inside a tubular heat dissipator and is exposed to the pressure liquid over its entire circumference. Baffles or offset connecting sleeves allow for uniform flow through the entire heat dissipator (40).
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