公开(公告)号：US20240318672A1

公开(公告)日：2024-09-26

申请号：US18415185

申请日：2024-01-17

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Federica FRANZONI ,  Fabio NATALI ,  Alessandro SASSI

IPC: F15B13/04 ,  F15B21/02

CPC classification number: F15B13/0416 ,  F15B21/02 ,  F15B2201/4056 ,  F15B2211/20538

Abstract: Methods and systems for a hydraulic unit. In one example, a hydraulic unit includes a torque sensor external mounted to a housing of the hydraulic unit, wherein a torque sensor mount is physically coupled to a planar portion of the housing near a flange through which a drive shaft extends.

公开(公告)号：US20210190095A1

公开(公告)日：2021-06-24

申请号：US17127578

申请日：2020-12-18

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Federica FRANZONI ,  Nicola Francesco MUSCIAGNA ,  Fabio NATALI ,  Alessandro SASSI

IPC: F15B1/02 ,  E02F9/22 ,  F15B21/14

Abstract: 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.

公开(公告)号：US20200248726A1

公开(公告)日：2020-08-06

申请号：US16781959

申请日：2020-02-04

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Alessandro SASSI ,  Fabio NATALI ,  Federica FRANZONI ,  Marco CANDURA

IPC: F15B15/14

Abstract: 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.

公开(公告)号：US20250035170A1

公开(公告)日：2025-01-30

申请号：US18357586

申请日：2023-07-24

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Luca FONTANESI ,  Fabio NATALI ,  Paolo COMODI

IPC: F15B15/26 ,  F03C1/00 ,  F03C1/02 ,  F15B15/14 ,  F16D49/16 ,  F16D65/06 ,  F16D65/18

Abstract: Methods and systems for a hydraulic axial piston motor with a braking system are described. A brake assembly for a hydraulic axial piston motor, comprising: a cylinder block and a pair of braking pads positioned around the cylinder block, wherein compression of the braking pads against an outer surface of the cylinder block realizes braking of the cylinder block.

公开(公告)号：US20240410282A1

公开(公告)日：2024-12-12

申请号：US18332362

申请日：2023-06-09

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Luca FONTANESI ,  Piergiorgio TRINCHIERI ,  Fabio NATALI

IPC: F01B3/00 ,  F16C3/02

Abstract: Systems and methods for a hydraulic machine. The hydraulic machine includes, in one example, a rotational shaft, a central pin rotationally coupled to the rotational shaft and threadingly engaged with a cylinder block via a threaded interface, and pistons coupled to the rotational shaft and mated with cylinders in the cylinder block. The hydraulic machine further includes a distribution plate in fluidic communication with the cylinders and a fluid inlet and a fluid outlet.

公开(公告)号：US20240318642A1

公开(公告)日：2024-09-26

申请号：US18188281

申请日：2023-03-22

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Federica FRANZONI ,  Fabio NATALI ,  Alessandro SASSI

IPC: F04B1/2021 ,  F04B1/2042

CPC classification number: F04B1/2021 ,  F04B1/2042

Abstract: Methods and systems for a variable balancing piston motor are described. In one example, a hydraulic displacement motor includes a valve plate coupled to at least one piston of a cylinder block, the valve plate comprising a plurality of grooves fluidly coupled to a passage comprising a valve.

公开(公告)号：US20240280020A1

公开(公告)日：2024-08-22

申请号：US18170357

申请日：2023-02-16

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Federica FRANZONI ,  Fabio NATALI ,  Alessandro SASSI

IPC: F01B3/02 ,  F01B3/00 ,  F01B3/10

CPC classification number: F01B3/02 ,  F01B3/0035 ,  F01B3/0085 ,  F01B3/103

Abstract: Systems and methods for a variable displacement hydraulic motor. The hydraulic motor, in one example, includes a swash plate with a tilt angle, multiple piston assemblies configured to rotate about a drive shaft. In the motor, each of the piston assemblies includes an inner piston slideably coupled to an outer piston that mates with a cylinder in a cylinder block and a retainer device configured to inhibit axial movement of the outer piston in a first position and permit axial movement of the outer piston in a second position.

公开(公告)号：US20210156369A1

公开(公告)日：2021-05-27

申请号：US17047951

申请日：2019-04-09

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Alessandro SASSI ,  Fabio NATALI ,  Federica FRANZONI

IPC: F04B1/22 ,  F04B1/328

Abstract: 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.

公开(公告)号：US20210107439A1

公开(公告)日：2021-04-15

申请号：US16970548

申请日：2019-02-18

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Fabio NATALI ,  Giovanni MARIECH

IPC: B60T7/12 ,  B60T13/66 ,  B60T13/12

Abstract: A hydraulic control system for control of a hydraulic motor. The hydraulic control system comprises a fluid distribution assembly having a tank, a pump to pump fluid from the tank and a directional valve for distributing pressurised fluid from the pump and to return fluid to the tank; a valve assembly fluidly connected to the directional valve, the valve assembly having a first overcenter valve and a pressure reducing valve wherein a first main line connects the directional valve to the first overcenter valve and wherein a shuttle line connects the pressure reducing valve to the first main line; a hydraulic motor fluidly connected to the valve assembly wherein the first main line connects the hydraulic motor to the first overcenter valve; and a brake assembly fluidly connected to the pressure reducing valve, wherein a drain line connects the pressure reducing valve to the hydraulic motor.