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:
Oct. 21, 2003
Filed:
Dec. 21, 2001
Gianni Trionfetti, Agrate Brianza, IT;
Balance Systems S.p.A., Milan, IT;
Abstract
The device comprises at least two annular balancing elements ( ) each having an unbalance and disposed in axial side by side relationship and coaxial with each other on the rotating body ( ) to be balanced. The annular elements ( ) are rotatable with the rotating body ( ) but can be angularly rotated relative to the body ( ) during rotation thereof. For this purpose, at least one pair of nozzles ( ) is provided for sending fluid jets, in particular air or cooling liquid jets, onto the annular elements ( ) tangentially thereof, more specifically onto radial fins of the annular elements ( ), to temporarily speed them up or slow them down with respect to the rotating body ( ), until reaching of an angular position at which the resultant unbalance vector of the annular elements ( ) compensates for the unbalance vector of the rotating body ( ).