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:
Aug. 11, 2020
Filed:
Nov. 11, 2015
Baruffaldi S.p.a., Tribiano (MI), IT;
Piercarlo Boffelli, Tribiano, IT;
Piercarlo Boffelli, Tribiano, IT;
BARUFFALDI S.P.A., Tribiano (MI), IT;
Abstract
Apparatus for actuating and controlling the rotation, about their longitudinal axis (Y-Y), of blades () of cooling fans () for operating machines and/or vehicles, in particular agricultural tractors and off-road vehicles, said fan being mounted on a hub () which can be rotationally driven about its axis (X-X) by associated driving means () suitable for connection to the heat engine () and mounted on a fixed support () by means of a bearing () the apparatus comprising a ring () provided with a radial seat () inside which a radial pin (), eccentrically engaged in a base () integral with the shank () of the blade (), is inserted; an electric motor () which is coaxial with the axis (X-X) of the hub () and the shaft () of which is coaxially connected to a reduction gear (), the kinematic output element () of which is coaxially connected by means of a screw ()/female thread () coupling to a slider () displaceable in both directions along the axis (X-X) and kinematically connected to the ring () with an eccentric pin () driving the base () of the shank of the blade, an electromagnetic clutch () being arranged between the pulley () and the hub () of the fan.