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:
May. 22, 2018
Filed:
Aug. 23, 2012
Raffaele Squarcini, Leghorn, IT;
Elisa Bartalesi, San Gimignano, IT;
Giacomo Armenio, Leghorn, IT;
Francesco Bucchi, Pisa, IT;
Rocco Rizzo, Pisa, IT;
Antonio Musolino, Pisa, IT;
Paola Forte, Pisa, IT;
Francesco Frendo, Viareggio-Lucca, IT;
Alessandro Franceschini, Lucca, IT;
Raffaele Squarcini, Leghorn, IT;
Elisa Bartalesi, San Gimignano, IT;
Giacomo Armenio, Leghorn, IT;
Francesco Bucchi, Pisa, IT;
Rocco Rizzo, Pisa, IT;
Antonio Musolino, Pisa, IT;
Paola Forte, Pisa, IT;
Francesco Frendo, Viareggio-Lucca, IT;
Alessandro Franceschini, Lucca, IT;
PIERBURG PUMP TECHNOLOGY GMBH, Neuss, DE;
Abstract
A mechanical combustion-engine-driven fluid pump includes an input shaft driven by a combustion engine, a pumping unit comprising a pump rotor, and a clutch arranged between the input shaft and the pump rotor. The clutch comprises an input clutch body, an output clutch body, an electroconductive element, a permanent magnet element, and an actuator. The clutch transfers a rotation of the input clutch body to the output clutch body in an engaged clutch state. The closed clutch liquid gap is formed between the input clutch body and the output clutch body, and is filled with a magneto-rheological clutch liquid. The electroconductive element co-rotates with the output clutch body. The permanent magnet element co-rotates with the input clutch body and is shiftable between an engaged position and a disengaged position. The actuator moves the permanent magnet element between the engaged position and the disengaged position.