公开(公告)号：US20180135771A1

公开(公告)日：2018-05-17

申请号：US15352702

申请日：2016-11-16

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Harald BAER ,  Josef Christian SCHAEFER ,  Ferdinand FRIEBE ,  Philipp GANDNER ,  Maximilian GEHRING ,  Philipp LINNEBACH

IPC: F16K31/00 ,  F15B13/02 ,  G05D23/08

Abstract: Valve device. 2. Valve device for controlling a fluid flow, consisting of a flow control valve (15), which comprises a valve housing (19) with at least one supply connection (9) and one user connection (11) as well as a valve piston (17) that is guided inside the valve housing (19) longitudinally moveable and which controls the passage to the user connection (11) by means of a thermocouple (61) via an orifice (37, 39) depending on the temperature of the fluid flow, and a pressure compensator (21), connected to the supply connection (9), keeps the respective pressure drop across the orifice (37, 39) constant.

公开(公告)号：US20150308325A1

公开(公告)日：2015-10-29

申请号：US14649599

申请日：2013-11-09

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Harald BAER ,  Josef Christian SCHAEFER

IPC: F01P5/04 ,  F01P7/04 ,  F16H61/4061

CPC classification number: F01P5/043 ,  B60K2025/026 ,  F01P7/044 ,  F16H61/4061 ,  F16H61/4069

Abstract: Disclosed is a device for controlling the operation of a ventilator, which can be driven by a hydraulic motor (1), of a cooling device, in particular in a working appliance for agricultural use, wherein the hydraulic motor (1) can be supplied with pressure fluid by means of a hydraulic pump (3) via a valve arrangement (7) than can be set to a first valve position for operation of the hydraulic motor (1) in a first direction of rotation and to a second valve position for operation of the hydraulic motor (1) in a second direction of rotation, a control device (21) being present, by means of which the valve arrangement (7) can be set to an intermediate position which reduces the pressure supply to the hydraulic motor (1) during transitions between the first and second valve positions for a time period that allows the ventilator speed to be reduced.

Abstract translation: 公开了一种用于控制可由液压马达（1）驱动的通风机的操作的装置，特别是在用于农业用途的工作设备中的冷却装置，其中液压马达（1）可以被供应 通过阀装置（7）通过液压泵（3）的压力流体可以被设置到用于在第一旋转方向上操作液压马达（1）的第一阀位置和用于操作的第二阀位置 液压马达（1）在第二旋转方向上，存在控制装置（21），通过该控制装置，阀装置（7）可以设置在中间位置，从而减小对液压马达的供给压力 1）在第一和第二阀位置之间的转换期间允许减少通气机速度。