Title:
MAINTENANCE MACHINE FOR REFRIGERATION UNITS
Document Type and Number:
WIPO Patent Application WO/2010/149461
Kind Code:
A3
Abstract:
For refrigeration units, maintenance machines are required that can receive and compress the coolant from the refrigeration unit. Furthermore, a vacuum pump is required, which is connected to the emptied lines and pumps out humidity and air. The maintenance machine according to the invention comprises a motor (34) that drives a compressor (49) via a free wheel (47) in one rotational direction. The same motor drives a vacuum pump (52) via a second freewheel (50) in the other rotational direction. The maintenance machine, which can perform two different functions, comprises only one single motor (34). Said machine is lightweight, so that it can be carried by the maintenance personnel. Furthermore, it is small and can be produced in a cost-effective manner.
Inventors:
RABE GERD H (DE)
Application Number:
PCT/EP2010/057349
Publication Date:
May 19, 2011
Filing Date:
May 27, 2010
Export Citation:
Assignee:
INFICON GMBH (DE)
RABE GERD H (DE)
RABE GERD H (DE)
International Classes:
F04B35/04; F25B45/00
Domestic Patent References:
| WO2007128127A1 | 2007-11-15 |
Foreign References:
| US5678415A | 1997-10-21 | |||
| EP1332964A1 | 2003-08-06 | |||
| US5606862A | 1997-03-04 | |||
| GB2083865A | 1982-03-31 |
Attorney, Agent or Firm:
VON KREISLER SELTING WERNER (Bahnhofsvorplatz 1, Köln, DE)
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