公开(公告)号：US11905938B2

公开(公告)日：2024-02-20

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 ,  F04B49/22 ,  F04B1/328

CPC classification number: F04B1/22 ,  F04B1/328 ,  F04B49/22

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：US20240011471A1

公开(公告)日：2024-01-11

申请号：US18349239

申请日：2023-07-10

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

Inventor： Luca FONTANESI ,  Alessandro SASSI ,  David GAMBUZZI

IPC: F04B1/2085

CPC classification number: F04B1/2085 ,  F16C19/502

Abstract: 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. The coupling member is configured to contact a portion of the cage to move the swashplate bearing upon rotation of the swashplate

公开(公告)号：US20230349397A1

公开(公告)日：2023-11-02

申请号：US18305600

申请日：2023-04-24

Applicant: Dana Motion Systems Italia S.r.l.

Inventor： Stefano FASANO ,  Daniele DODI ,  Bartoli MAURIZIO ,  Alessandro SASSI

IPC: F15B11/17 ,  F15B13/02

CPC classification number: F15B11/17 ,  F15B13/026 ,  F15B2211/20576

Abstract: 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.

公开(公告)号：US11692600B2

公开(公告)日：2023-07-04

申请号：US18057701

申请日：2022-11-21

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

Inventor： Stefano Fasano ,  Daniele Dodi

IPC: F16D48/02

CPC classification number: F16D48/0206 ,  F16D2048/0221 ,  F16D2048/0266

Abstract: The present disclosure describes a hydraulic control system comprising a first pressure chamber and a second pressure chamber, each pressure chamber configured to receive a hydraulic fluid, a first movable member configured to assume a position depending on a hydraulic pressure of the hydraulic fluid in the first pressure chamber and a second movable member configured to assume a position depending on a hydraulic pressure of the hydraulic fluid in the second pressure chamber, a hydraulic command circuit configured to provide the hydraulic fluid and to control the hydraulic pressure of the hydraulic fluid in the first pressure chamber and/or the second pressure chamber, having a switchable valve in fluid communication with the first pressure chamber, wherein the switchable valve is configured to be pilotable depending on the hydraulic pressure of the hydraulic fluid in the second pressure chamber.

公开(公告)号：US11583792B2

公开(公告)日：2023-02-21

申请号：US17064449

申请日：2020-10-06

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

Inventor： Luca Buscicchio ,  Piergiorgio Trinchieri

IPC: B01D35/143 ,  B01D35/147 ,  B01D29/33

Abstract: A fluid filter device with a housing defining a cavity, the housing including a fluid inlet and a fluid outlet, a filter unit including a filter substrate and arranged within the cavity such that the filter unit and the housing define, within the cavity, a first chamber in fluid communication with the fluid inlet and a second chamber in fluid communication with the fluid outlet. The filter unit is movable relative to the housing between a first position and a second position such that in the first position, the first chamber is in fluid communication with the second chamber through the filter substrate, and in the second position, the inlet is in fluid communication with the outlet through a bypass line.

公开(公告)号：US11542967B2

公开(公告)日：2023-01-03

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: F15B21/14 ,  E02F9/22

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：US11313487B2

公开(公告)日：2022-04-26

申请号：US17059180

申请日：2019-05-09

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

Inventor： Piergiorgio Trinchieri

IPC: F16K31/06 ,  F16K31/40

Abstract: A solenoid valve is disclosed. The solenoid valve comprises: a fixed member having a tube portion; a mobile plunger positioned in the tube portion, the mobile plunger being axially movable between a first position and a second position; a rod coupled to the mobile plunger and having a spool for control of fluid flow, the rod being axially movable in the tube portion; an electromagnetic coil positioned externally to the fixed member; and an air gap positioned in the tube portion between the electromagnetic coil and the mobile plunger, wherein the air gap is formed in an internal surface of the tube portion.

公开(公告)号：US20220032719A1

公开(公告)日：2022-02-03

申请号：US16943404

申请日：2020-07-30

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

Inventor： Alessandro BENEVELLI ,  Stefano FASANO ,  Daniele DODI

IPC: B60G17/08 ,  B60G17/005 ,  B60G13/08

Abstract: Methods and systems for hydraulic vehicle suspension are provided. A hydraulic suspension system, in one example, includes a first manifold including a piston-side interface and a rod-side interface fluidically coupled to a piston chamber and a rod chamber, respectively, for each of a first hydraulic cylinder and a second hydraulic cylinder. In the system, the first manifold includes a first electrically activated valve fluidically coupled to the piston-side interfaces, a first damping device, and a second damping device, the first electrically activated valve is configured to lock and unlock vertical motion of the first and second hydraulic cylinders and, while vertical motion of the first and second hydraulic cylinders is locked, the first electrically activated valve permits fluidic communication between the first and second hydraulic cylinders to permit free roll motion in the hydraulic suspension system.

公开(公告)号：US11215203B2

公开(公告)日：2022-01-04

申请号：US16863842

申请日：2020-04-30

Applicant: DANA MOTION SYSTEMS ITALIA S.R.L.

Inventor： Piergiorgio Trinchieri

IPC: F15B13/04 ,  F01C20/24

Abstract: A logic valve for management of a hydraulic actuator comprising: a valve body with a hollow seat which extends along a work direction and communicates with a first port adapted for receiving a pressurized working fluid, a second port adapted for fluidly coupling with an operating chamber of the hydraulic actuator, and a third port adapted for discharging the working fluid; a slider within the hollow seat movable along the work direction; and a spring between the valve body and the slider and oriented to act on the slider along the work direction in the direction away from said third port, wherein the slider is movable between a first operating configuration fluidly coupling the second and third ports and excluding fluid communication between them and the first port, and a second operating configuration fluidly coupling the first and second ports and excluding fluid communication between them and the third port.

公开(公告)号：US20210317830A1

公开(公告)日：2021-10-14

申请号：US17272198

申请日：2019-09-02

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

Inventor： Federica FRANZONI ,  Alessandro SASSI

IPC: F04C2/10 ,  F04C15/00 ,  F04C2/08 ,  F03C2/30

Abstract: 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.