Title:
EXHAUST HOOD
Document Type and Number:
WIPO Patent Application WO/2010/031524
Kind Code:
A3
Abstract:
The invention relates to an exhaust hood (2) comprising a first fan wheel (4) for the intake and removal of indoor air and a plurality of guide vanes (8) arranged externally around the first fan wheel (4) to redirect the air current discharged from the first fan wheel (4). The aim of the invention is to improve said exhaust hood in such a manner that the energy losses through indoor air being blown out are reduced. For this purpose, a second fan wheel (6) for the intake of outdoor air is arranged in the exhaust hood (2) axially offset from the first fan wheel (4) and the air currents discharged from the first and second fan wheel (4, 6) are guided past each other and separately from each other through the guide vanes (8) which are designed as a hollow space (32) and which define air ducts, the walls of the guide vanes (8) defining respective surfaces (34) for the heat exchange between the two air currents.
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Inventors:
BERLING UDO (DE)
Application Number:
PCT/EP2009/006627
Publication Date:
June 17, 2010
Filing Date:
September 12, 2009
Export Citation:
Assignee:
BERLING UDO (DE)
International Classes:
F24C15/20; F28D9/00
Domestic Patent References:
| WO2004051152A1 | 2004-06-17 |
Foreign References:
| DE2753115A1 | 1978-06-01 | |||
| CH658899A5 | 1986-12-15 | |||
| DE19711709A1 | 1997-10-30 |
Attorney, Agent or Firm:
WEEG, Thomas (Patent- und RechtsanwälteGroßhandelsring 6, Osnabrück, DE)
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