公开(公告)号：US20210395054A1

公开(公告)日：2021-12-23

申请号：US17446948

申请日：2021-09-03

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：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.