Patents by Inventor Alessandro SASSI
Alessandro SASSI 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: 11905938Abstract: A piston hydraulic device comprises a cylinder block having a plurality of cylinder assemblies and is rotatable about a first rotation axis. Each cylinder assembly comprises a cylinder and a piston. A port plate has a first port and a second port that are angularly spaced relative to the first rotation axis. A plurality of first conduits connect respective cylinders alternately to the first port or the second port. At least one second conduit is connected to a fluid reservoir. At least one directional control valve is positioned in the first conduit and fluidly connects to the second conduit. The at least one directional control valve connects the cylinder to the port plate in a first position and to the fluid reservoir in a second position. A controller is operatively associated with the directional control valve for switching between the first and the second positions.Type: GrantFiled: April 9, 2019Date of Patent: February 20, 2024Assignee: DANA MOTION SYSTEMS ITALIA S.R.L.Inventors: Alessandro Sassi, Fabio Natali, Federica Franzoni
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Patent number: 11898582Abstract: Methods and systems for a bent axis motor are described. In one example, a bent axis motor includes a valve plate coupled to at least one piston of a cylinder block, the valve plate comprising a first plurality of grooves spaced about openings of the valve plate on a first side of the valve plate facing the cylinder block, the valve plate further comprising a second plurality of grooves arranged on a second side of the valve plate facing away from the cylinder block.Type: GrantFiled: March 9, 2023Date of Patent: February 13, 2024Assignee: DANA MOTION SYSTEMS ITALIA S.R.L.Inventors: Federica Franzoni, Fabio Natali, Alessandro Sassi
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Publication number: 20240011471Abstract: The present disclosure relates to a coupling assembly for a variable displacement hydraulic unit. The coupling assembly may have a rotatable swashplate, a swashplate bearing including a cage and a plurality of rollers mounted on the cage, a pin fixed to the swashplate, and a coupling member rotatably supported on the pin.Type: ApplicationFiled: July 10, 2023Publication date: January 11, 2024Applicant: Dana Motion Systems Italia S.R.L.Inventors: Luca FONTANESI, Alessandro SASSI, David GAMBUZZI
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Publication number: 20230349397Abstract: The present document relates to a hydraulic system having a first hydraulic pump, a second hydraulic pump, at least one hydraulic actuator, a low-pressure tank, and a pressure controlled flow compensating valve. A high-pressure port of the first hydraulic pump and a high-pressure port of the second hydraulic pump are fluidly connected or fluidly connectable to the at least one hydraulic actuator. The high-pressure port of the second hydraulic pump is selectively fluidly connectable to the low-pressure tank via the flow compensating valve. The flow compensating valve is controllable by or based on one or more of: a hydraulic pressure provided by the first hydraulic pump, a hydraulic pressure provided by the second hydraulic pump, and a hydraulic pressure at a fluid port of the at least one hydraulic actuator.Type: ApplicationFiled: April 24, 2023Publication date: November 2, 2023Applicant: Dana Motion Systems Italia S.r.l.Inventors: Stefano FASANO, Daniele DODI, Bartoli MAURIZIO, Alessandro SASSI
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Publication number: 20230235835Abstract: A valve assembly and a hydraulic circuit including the valve assembly are provided. The valve assembly comprises a hydraulically actuated valve configured to be biased from a first control position to a second control position by a hydraulic pressure applied to a first fluid port of the hydraulically actuated valve. A first switching threshold pressure required to switch the hydraulically actuated valve to its second control position when applied to the first fluid port of the hydraulically actuated valve in its first control position differs from a second switching threshold pressure required to keep the hydraulically actuated valve in its second control position when applied to the first fluid port of the hydraulically actuated valve in its second control position.Type: ApplicationFiled: January 3, 2023Publication date: July 27, 2023Inventors: Alessandro SASSI, Vanni CATELLANI, Stefano FASANO, Federica FRANZONI, Stefano LAZZARETTI
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Patent number: 11598332Abstract: Provided is a hydraulic orbital machine and a method of adjusting a hydraulic orbital machine comprising a first and a second lobed disk which rotate eccentrically about a rotation axis and within respective rotors; the machine is characterized by the fact that it has adjustment means designed to mutually angularly offset the angles at which, when the machine is at a standstill, the chambers defined between the lobed disks and the stator have minimum volume.Type: GrantFiled: September 2, 2019Date of Patent: March 7, 2023Assignee: Dana Motion Systems Italia S.R.L.Inventors: Federica Franzoni, Alessandro Sassi
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Patent number: 11542967Abstract: Hydraulic systems and methods comprising a source of hydraulic pressure; a hydraulic load; and an energy recovery circuit. The source of hydraulic pressure is fluidly connected to the hydraulic load through a first hydraulic channel with an orifice. The energy recovery circuit includes a recovery channel which is fluidly connected at its first end to the orifice on the side of it which is connected to the source of hydraulic pressure, and which is fluidly connected at its second end to a hydraulic motor.Type: GrantFiled: December 18, 2020Date of Patent: January 3, 2023Assignee: Dana Motion Systems Italia S.R.L.Inventors: Federica Franzoni, Nicola Francesco Musciagna, Fabio Natali, Alessandro Sassi
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Patent number: 11421684Abstract: The gear pump may have a casing, a main shaft and rotating means connected to one end of the main shaft and configured to rotate the main shaft. Housed by the casing, a toothed wheel and at least one other toothed element are intermeshed with the toothed wheel. The other end of the main shaft is connected to one of the toothed wheel and the casing. Rotating the main shaft relative to the rotating means rotates the toothed wheel and the at least one other toothed element relative to the casing, thereby generating the flow. The other one of the casing and the toothed wheel is configured to be rotated around an axis defined by the main shaft for varying a flow rate of the generated flow.Type: GrantFiled: April 9, 2021Date of Patent: August 23, 2022Assignee: Dana Motion Systems Italia S.r.l.Inventors: Federica Franzoni, Alessandro Sassi
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Patent number: 11339811Abstract: The present disclosure relates to a hydraulic circuit, comprising: a hydraulic displacement unit for driving an implement; a hydraulic machine fluidly connected or selectively fluidly connected with the hydraulic displacement unit the hydraulic machine having a fixed hydraulic displacement; an electric machine drivingly engaged or selectively drivingly engaged with the hydraulic machine; a hydraulic pump fluidly connected or selectively fluidly connected with the hydraulic displacement unit, the hydraulic pump having a variable hydraulic displacement; and an electric motor drivingly engaged or selectively drivingly engaged with the hydraulic pump.Type: GrantFiled: June 14, 2019Date of Patent: May 24, 2022Assignee: DANA ITALIA S.R.L.Inventors: Matteo Stefani, Nicola Francesco Musciagna, Alessandro Sassi, Lorenzo Serrao
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Publication number: 20210324852Abstract: The gear pump may have a casing, a main shaft and rotating means connected to one end of the main shaft and configured to rotate the main shaft. Housed by the casing, a toothed wheel and at least one other toothed element are intermeshed with the toothed wheel. The other end of the main shaft is connected to one of the toothed wheel and the casing. Rotating the main shaft relative to the rotating means rotates the toothed wheel and the at least one other toothed element relative to the casing, thereby generating the flow. The other one of the casing and the toothed wheel is configured to be rotated around an axis defined by the main shaft for varying a flow rate of the generated flow.Type: ApplicationFiled: April 9, 2021Publication date: October 21, 2021Inventors: Federica Franzoni, Alessandro Sassi
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Publication number: 20210317830Abstract: Provided is a hydraulic orbital machine and a method of adjusting a hydraulic orbital machine comprising a first and a second lobed disk which rotate eccentrically about a rotation axis and within respective rotors; the machine is characterized by the fact that it has adjustment means designed to mutually angularly offset the angles at which, when the machine is at a standstill, the chambers defined between the lobed disks and the stator have minimum volume.Type: ApplicationFiled: September 2, 2019Publication date: October 14, 2021Inventors: Federica FRANZONI, Alessandro SASSI
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Publication number: 20210254642Abstract: The present disclosure relates to a hydraulic circuit comprising: a hydraulic displacement unit for driving an implement; a hydraulic machine fluidly connected or selectively fluidly connected with the hydraulic displacement unit the hydraulic machine having a fixed hydraulic displacement; an electric machine drivingly engaged or selectively drivingly engaged with the hydraulic machine; a hydraulic pump fluidly connected or selectively fluidly connected with the hydraulic displacement unit, the hydraulic pump having a variable hydraulic displacement; and an electric motor drivingly engaged or selectively drivingly engaged with the hydraulic pump.Type: ApplicationFiled: June 14, 2019Publication date: August 19, 2021Inventors: Matteo STEFANI, Nicola Francesco MUSCIAGNA, Alessandro SASSI, Lorenzo SERRAO
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Patent number: 11092174Abstract: The present invention relates to a piston for hydraulic machines with axial positions, comprising a head connected to a stem which is extended along a longitudinal axis and forms a bottom arranged at the opposite end with respect to said head. The piston is further provided with at least one intake duct passing within it and having a first and a second end, which are mutually opposite, open respectively at the head and at the bottom. The distinctive aspect of the invention is that the piston also comprises at least one distribution duct passing within it, which has a first and a second end, which are mutually opposite, the first end of which is in fluid communication with the intake duct and the second end of which is open at the head, the piston being provided monolithically.Type: GrantFiled: February 4, 2020Date of Patent: August 17, 2021Assignee: Dana Motion Systems Italia S.R.L.Inventors: Alessandro Sassi, Fabio Natali, Federica Franzoni, Marco Candura
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Publication number: 20210190095Abstract: Hydraulic systems and methods comprising a source of hydraulic pressure; a hydraulic load; and an energy recovery circuit. The source of hydraulic pressure is fluidly connected to the hydraulic load through a first hydraulic channel with an orifice. The energy recovery circuit includes a recovery channel which is fluidly connected at its first end to the orifice on the side of it which is connected to the source of hydraulic pressure, and which is fluidly connected at its second end to a hydraulic motor.Type: ApplicationFiled: December 18, 2020Publication date: June 24, 2021Inventors: Federica FRANZONI, Nicola Francesco MUSCIAGNA, Fabio NATALI, Alessandro SASSI
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Publication number: 20210156369Abstract: A piston hydraulic device comprises a cylinder block having a plurality of cylinder assemblies and is rotatable about a first rotation axis. Each cylinder assembly comprises a cylinder and a piston. A port plate has a first port and a second port that are angularly spaced relative to the first rotation axis. A plurality of first conduits connect respective cylinders alternately to the first port or the second port. At least one second conduit is connected to a fluid reservoir. At least one directional control valve is positioned in the first conduit and fluidly connects to the second conduit. The at least one directional control valve connects the cylinder to the port plate in a first position and to the fluid reservoir in a second position. A controller is operatively associated with the directional control valve for switching between the first and the second positions.Type: ApplicationFiled: April 9, 2019Publication date: May 27, 2021Inventors: Alessandro SASSI, Fabio NATALI, Federica FRANZONI
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Publication number: 20210108623Abstract: A bent-axis axial-piston hydraulic machine may have a cylinder block being movable circumferentially about a first rotation axis. The machine may also have a transmission shaft which is functionally associated with the cylinder block and which can rotate about a transmission axis incident on the rotation axis. The machine may also have a distributor, and a device for angular offsetting which is associated with the distributor to rotate the distributor to cause a variation of effective cubic capacity while a geometric cubic capacity of the machine remains constant. The corresponding method for adjusting the capacity of a bent-axis axial piston hydraulic machine is also disclosed.Type: ApplicationFiled: March 20, 2019Publication date: April 15, 2021Applicant: DANA MOTION SYSTEMS ITALIA S.R.L.Inventors: ALESSANDRO SASSI, FABIO NATALI, FEDERICA FRANZONI
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Publication number: 20200248726Abstract: The present invention relates to a piston for hydraulic machines with axial positions, comprising a head connected to a stem which is extended along a longitudinal axis and forms a bottom arranged at the opposite end with respect to said head. The piston is further provided with at least one intake duct passing within it and having a first and a second end, which are mutually opposite, open respectively at the head and at the bottom. The distinctive aspect of the invention is that the piston also comprises at least one distribution duct passing within it, which has a first and a second end, which are mutually opposite, the first end of which is in fluid communication with the intake duct and the second end of which is open at the head, the piston being provided monolithically.Type: ApplicationFiled: February 4, 2020Publication date: August 6, 2020Inventors: Alessandro SASSI, Fabio NATALI, Federica FRANZONI, Marco CANDURA