公开(公告)号：US20220032714A1

公开(公告)日：2022-02-03

申请号：US16943388

申请日：2020-07-30

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

Inventor： Alessandro BENEVELLI ,  Stefano FASANO ,  Nicola Francesco MUSCIAGNA

IPC: B60G17/048 ,  B60G17/056 ,  B60G21/00

Abstract: Methods and systems for vehicle suspension are provided. A leveling manifold includes, in one example, a plurality of electrically-activated valves arranged between, on a first end, a rod-side and a piston-side of one or more hydraulic cylinders, and on a second end, a pressure source and a tank, wherein the plurality of electrically-activated valves include a first valve, a second valve, a third valve, and a fourth valve. The leveling manifold further includes a first flow path extending through the first and second valves and from the rod-side to the second end and a second flow path extending through the third and fourth valves and from the piston-side to the second end, the leveling manifold is designed to manage operation of the first, second, third, and/or fourth valves to independently adjust a position and a stiffness of the one or more hydraulic cylinders.

公开(公告)号：US20220003278A1

公开(公告)日：2022-01-06

申请号：US17364709

申请日：2021-06-30

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

Inventor： Stefano FASANO ,  Daniele DODI

IPC: F16D25/06 ,  F16D48/02

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：US11148918B2

公开(公告)日：2021-10-19

申请号：US16632280

申请日：2018-07-17

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

Inventor： Alessandro Vighi ,  Giovanni Mariech ,  Orazio Amatucci ,  Sergio Artioli ,  Fabrizio Federici

IPC: B66D1/22

Abstract: A drum and ring gear assembly for winches with geared transmission which comprises a substantially cylindrical drum adapted to be actuated rotationally about its own longitudinal axis and a ring gear accommodated substantially coaxially inside the drum, which are mutually associated so as to rotate integrally about the longitudinal axis by virtue of connecting means; the connecting means is of the positive and/or direct friction type.

公开(公告)号：US20210262457A1

公开(公告)日：2021-08-26

申请号：US17180528

申请日：2021-02-19

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

Inventor： Luca BUSCICCHIO ,  Piergiorgio TRINCHIERI

IPC: F04B17/03 ,  F04B53/08

Abstract: The present disclosure relates to a fluid power pack, comprising: a manifold block comprising at least one fluid port; a first housing mounted on the manifold block and enclosing a first tank configured to hold a liquid; an electric motor mounted on the manifold block and disposed within the first tank so that the electric motor is configured to be submerged in a liquid held within the first tank for cooling the electric motor; a second housing mounted on the manifold block and enclosing a second tank configured to hold a liquid; and a hydraulic pump mounted on the manifold block and drivingly engaged with the electric motor, the hydraulic pump comprising a low pressure port and a high pressure port. The high pressure port of the hydraulic pump is in fluid communication with the fluid port of the manifold block and the low pressure port of the hydraulic pump is in fluid communication with the second tank. The present disclosure further relates to a hydraulic system including the fluid power pack and a hydraulic load fluidly connected with the fluid power pack.

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.