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. 31, 2012
Filed:
Jun. 15, 2009
Rolf Rohden, Aurich, DE;
Rolf Rohden, Aurich, DE;
Aloys Wobben, Aurich, DE;
Abstract
The present invention concerns a Magnus rotor comprising a drive and a control means which controls the drive in such a way that the Magnus rotor attains a peripheral speed which is greater than the mean wind speed by a factor λ. In addition the present invention concerns a method of operating a Magnus rotor comprising a drive which causes the Magnus rotor to rotate, and a control means, as well as a ship. In order better to utilize the action of the Magnus rotor than occurs in the state of the art, λ is greater than 4. In that respect the present invention is based on the realization that the assumption that, above a high-speed factor of four, there would no longer be a significant increase in the lift coefficient, which above all is in relation to the drive power to be used, is based on a technical prejudice. It was possible to empirically ascertain that an increase in the high-speed factor leads to a significantly higher lift coefficient. Accordingly there is also a higher power output from the Magnus rotor.