Patents by Inventor Elisa Bartalesi
Elisa Bartalesi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10024322Abstract: A fluid pump includes an input shaft, a pumping unit comprising a pump rotor, and a clutch arranged between the input shaft and the pump rotor. The clutch comprises at least two input clutch disks, at least two output clutch disks, a permanent magnet element, and an actuator. The at least two input clutch disks and the at least two output clutch discs together define at least two clutch liquid gaps which are filled with a magneto-rheological clutch liquid. The permanent magnet element shifts between an engaged position wherein a magnetic field of the permanent magnet element penetrates the at least two clutch liquid gaps with a high magnetic flux, and a disengaged position wherein the magnetic field of the permanent magnet element is less than in the engaged position. The actuator moves the permanent magnet element between the engaged position and the disengaged position.Type: GrantFiled: August 23, 2012Date of Patent: July 17, 2018Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventors: Raffaele Squarcini, Elisa Bartalesi, Giacomo Armenio, Francesco Bucchi, Rocco Rizzo, Antonio Musolino, Paola Forte, Francesco Frendo, Alessandro Franceschini
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Patent number: 9976606Abstract: 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.Type: GrantFiled: August 23, 2012Date of Patent: May 22, 2018Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventors: Raffaele Squarcini, Elisa Bartalesi, Giacomo Armenio, Francesco Bucchi, Rocco Rizzo, Antonio Musolino, Paola Forte, Francesco Frendo, Alessandro Franceschini
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Patent number: 9333958Abstract: A pneumatic brake assistance arrangement includes a vacuum brake assistance unit comprising a vacuum chamber, and a vacuum pump. The vacuum pump comprises an input shaft, a pumping unit, and a magneto-rheological clutch. The pumping unit comprises a pump rotor and a suction port connected to the vacuum chamber. The magneto-rheological clutch comprises an input clutch body, an output clutch body, a closed clutch liquid gap, a permanent magnet element, and a pneumatic control circuit. The permanent magnet element shifts between an engaged and a disengaged position. The pneumatic control circuit moves the permanent magnet element between the engaged and the disengaged position. The pneumatic control circuit comprises a pneumatic actuation chamber comprising a piston and a passive pretension element. The pneumatic actuation chamber is connected to the vacuum chamber. The piston shifts the permanent magnet element into the engaged position when a high pressure exists in the vacuum chamber.Type: GrantFiled: August 23, 2012Date of Patent: May 10, 2016Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventors: Raffaele Squarcini, Elisa Bartalesi, Francesco Bucchi
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Publication number: 20150308432Abstract: A fluid pump includes an input shaft, a pumping unit comprising a pump rotor, and a clutch arranged between the input shaft and the pump rotor. The clutch comprises at least two input clutch disks, at least two output clutch disks, a permanent magnet element, and an actuator. The at least two input clutch disks and the at least two output clutch discs together define at least two clutch liquid gaps which are filled with a magneto-rheological clutch liquid. The permanent magnet element shifts between an engaged position wherein a magnetic field of the permanent magnet element penetrates the at least two clutch liquid gaps with a high magnetic flux, and a disengaged position wherein the magnetic field of the permanent magnet element is less than in the engaged position. The actuator moves the permanent magnet element between the engaged position and the disengaged position.Type: ApplicationFiled: August 23, 2012Publication date: October 29, 2015Applicant: PIERBURG PUMP TECHNOLOGY GMBHInventors: Raffaele SQUARCINI, Elisa BARTALESI, Giacomo ARMENIO, Francesco BUCCHI, Rocco RIZZO, Antonio MUSOLINO, Paola FORTE, Francesco FRENDO, Alessandro FRANCESCHINI
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Publication number: 20150260240Abstract: 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.Type: ApplicationFiled: August 23, 2012Publication date: September 17, 2015Applicant: Pierburg Pump Technology GmbHInventors: Raffaele Squarcini, Elisa Bartalesi, Giacomo Armenio, Francesco Bucchi, Rocco Rizzo, Antonio Musolino, Paola Forte, Francesco Frendo, Alessandro Franceschini
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Publication number: 20150251644Abstract: A pneumatic brake assistance arrangement includes a vacuum brake assistance unit comprising a vacuum chamber, and a vacuum pump. The vacuum pump comprises an input shaft, a pumping unit, and a magneto-rheological clutch. The pumping unit comprises a pump rotor and a suction port connected to the vacuum chamber. The magneto-rheological clutch comprises an input clutch body, an output clutch body, a closed clutch liquid gap, a permanent magnet element, and a pneumatic control circuit. The permanent magnet element shifts between an engaged and a disengaged position. The pneumatic control circuit moves the permanent magnet element between the engaged and the disengaged position. The pneumatic control circuit comprises a pneumatic actuation chamber comprising a piston and a passive pretension element. The pneumatic actuation chamber is connected to the vacuum chamber. The piston shifts the permanent magnet element into the engaged position when a high pressure exists in the vacuum chamber.Type: ApplicationFiled: August 23, 2012Publication date: September 10, 2015Applicant: Pierburg Pump Technology GmbHInventors: Raffaele Squarcini, Elisa Bartalesi, Francesco Bucchi
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Publication number: 20150044069Abstract: A mechanical fluid pump driven by a combustion engine includes an input shaft which is directly driven by the combustion engine, a pumping unit comprising a pump rotor, and a clutch arranged between the input shaft and the pump rotor. The clutch is provided as a magneto-rheological clutch comprising two clutch bodies, a fluid gap arranged between the two clutch bodies, the fluid gap being filled with a magneto-rheological fluid, and a permanent magnet element which is shiftable between an engaged position where a magnetic field penetration flux of the permanent magnet element penetrates the fluid gap with a high magnetic flux, and a disengaged position where the magnetic field penetration flux of the permanent magnet element is less than in the engaged position. An actuator is configured to move the permanent magnet element between the engaged position and the disengaged position.Type: ApplicationFiled: January 24, 2012Publication date: February 12, 2015Applicant: PIERBURG PUMP TECHNOLOGY ITALY S.P.A.Inventors: Raffaele Squarcini, Elisa Bartalesi, Giacomo Armenio, Paola Forte, Francesco Frendo, Rocco Rizzo, Francesco Bucchi, Andrea Ferri