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:
Dec. 05, 2006
Filed:
Aug. 08, 2003
Piercarlo Boffelli, Milan, IT;
Claudio Bellotti, Cerro Al Lambro, IT;
Erminio Depoli, Crema, IT;
Fabio Natale, San Giuliano M.SE, IT;
Piercarlo Boffelli, Milan, IT;
Claudio Bellotti, Cerro Al Lambro, IT;
Erminio Depoli, Crema, IT;
Fabio Natale, San Giuliano M.SE, IT;
Baruffaldi S.p.A., Milan, IT;
Abstract
Device for controlling the means () for recirculating a cooling fluid in engines () in particular for vehicles and like, comprising a shaft () actuating the impeller, means () for generating the movement of said shaft and means for transmitting the movement from the said generating means () to the said shaft () of the impeller (), in which said movement transmission means comprise a double-action coupling () comprising: magnetic means () integral with a rotor () and able to cooperate with corresponding magnetizable means () of a support () rotationally connected to the shaft () of the recirculating means and movable in an axial direction with respect thereto, so as to determine a first speed of rotation of the recirculating means (), and electromagnetic means () able to co-operate with a ring () integral with said support () so as to determine a second and different speed of rotation of the pump impeller ().