The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2001
Filed:
Jul. 02, 1999
Applicant:
Inventors:
Rauli T. Hulkkonen, Espoo, FI;
Jyri-Markku Vuorenmaa, Helsinki, FI;
Assignee:
ABB Flakt Oy, , FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 2/924 ; F04D 2/902 ;
U.S. Cl.
CPC ...
F04D 2/924 ; F04D 2/902 ;
Abstract
A mechanical vapor recompression fan comprises a blade wheel and an electric motor to operate the blade wheel. The blade wheel at least mainly consists of carbon-fibre-based composite material and is mounted directly on the shaft of the blade wheel, and the tips of the blades of the blade wheel are provided with an erosion shield.