公开(公告)号：US10859100B2

公开(公告)日：2020-12-08

申请号：US16432580

申请日：2019-06-05

申请人： Voith Patent GmbH

发明人： Hubert Schaber ,  Magnus Junginger

IPC分类号： F15B13/02 ,  F15B11/02 ,  F16K31/04 ,  F15B11/024 ,  F15B15/18

摘要： An autarkic hydraulic linear drive with a hydraulic arrangement and a method for operating the same. The hydraulic arrangement a pump unit, an equalizing reservoir, a load switching valve configured to switch between a fast extension and a load extension, and a hysteresis circuit. The hysteresis circuit is configured for triggering a first switching process of the load switching valve at a first control pressure and a second switching process of the load switching valve at a second control pressure that is different than the first control pressure.

公开(公告)号：US10473128B2

公开(公告)日：2019-11-12

申请号：US15537733

申请日：2015-10-28

申请人： VOITH PATENT GMBH

发明人： Hubert Schaber

IPC分类号： F15B20/00 ,  F15B21/042 ,  F01D17/18 ,  F15B1/02 ,  F16K31/12

摘要： An actuating drive for a control valve contains a working cylinder which has a piston and a piston rod and forms an actuator for the control valve. The piston bounds a first pressure space and a second pressure space to displace the piston counter to the force of a spring by applying pressure to the first pressure space via a working medium. A working medium circuit is connected to the working cylinder at first and second pressure connections to introduce and evacuate the working medium into/from the first and second pressure spaces. The working medium circuit has a working medium pump connected to convey the working fluid, at a pressure side, to the first pressure connection, and at a suction side, to the second pressure connection. The first pressure space is permanently connected, so as to convey working fluid, to the second pressure space via a bypass line.

公开(公告)号：US20190285094A1

公开(公告)日：2019-09-19

申请号：US16432580

申请日：2019-06-05

申请人： Voith Patent GmbH

发明人： Hubert Schaber ,  Magnus Junginger

IPC分类号： F15B13/02 ,  F16K31/04 ,  F15B11/02

摘要： An autarkic hydraulic linear drive with a hydraulic arrangement and a method for operating the same. The hydraulic arrangement a pump unit, an equalizing reservoir, a load switching valve configured to switch between a fast extension and a load extension, and a hysteresis circuit. The hysteresis circuit is configured for triggering a first switching process of the load switching valve at a first control pressure and a second switching process of the load switching valve at a second control pressure that is different than the first control pressure.

公开(公告)号：US10302101B2

公开(公告)日：2019-05-28

申请号：US14856925

申请日：2015-09-17

申请人： Voith Patent GmbH

发明人： Hubert Schaber

IPC分类号： F15B11/08 ,  B30B15/16 ,  B30B15/28 ,  B30B15/34 ,  F15B11/02 ,  F15B13/04

摘要： A hydraulic drive including a differential cylinder that has a first pressure chamber and a second pressure chamber and a differential piston, a first hydraulic pump that includes a pump intake and a pump outlet, a directional control valve having a first switching position and a second switching position, a high pressure tank, and an additional hydraulic cylinder that includes an additional pressure chamber hydraulically connected with the pump intake and with the high pressure tank and an additional piston limiting the additional pressure chamber, the differential piston being movably coupled with the additional piston, wherein in the first switching position of the directional control valve the first pressure chamber is hydraulically connected with the second pressure chamber, and in the second switching position of the directional control valve the second pressure chamber is not hydraulically connected with the first pressure chamber.

公开(公告)号：US11143215B2

公开(公告)日：2021-10-12

申请号：US16323423

申请日：2017-07-28

申请人： VOITH PATENT GMBH

发明人： Hubert Schaber

IPC分类号： F15B21/041 ,  F15B21/00 ,  F15B21/044

摘要： A flushing module for hydraulic drives, in particular for self-contained drives, for cleaning and/or replacing hydraulic medium. The flushing module has a pump and at least one shutoff valve and a housing. The flushing module is portable.

公开(公告)号：US20160084276A1

公开(公告)日：2016-03-24

申请号：US14856925

申请日：2015-09-17

申请人： VOITH PATENT GMBH

发明人： Hubert Schaber

IPC分类号： F15B11/08 ,  F15B13/04

CPC分类号： F15B11/08 ,  B30B15/161 ,  B30B15/163 ,  B30B15/284 ,  B30B15/34 ,  F15B11/022 ,  F15B13/0401 ,  F15B2211/20515 ,  F15B2211/2053 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/255 ,  F15B2211/3058 ,  F15B2211/625 ,  F15B2211/6313 ,  F15B2211/7054 ,  F15B2211/7056 ,  F15B2211/775

摘要： A hydraulic drive including a differential cylinder that has a first pressure chamber and a second pressure chamber and a differential piston, a first hydraulic pump that includes a pump intake and a pump outlet, a directional control valve having a first switching position and a second switching position, a high pressure tank, and an additional hydraulic cylinder that includes an additional pressure chamber hydraulically connected with the pump intake and with the high pressure tank and an additional piston limiting the additional pressure chamber, the differential piston being movably coupled with the additional piston, wherein in the first switching position of the directional control valve the first pressure chamber is hydraulically connected with the second pressure chamber, and in the second switching position of the directional control valve the second pressure chamber is not hydraulically connected with the first pressure chamber.

摘要翻译： 一种包括具有第一压力室和第二压力室和差动活塞的差压缸的液压驱动器，包括泵入口和泵出口的第一液压泵，具有第一开关位置和第二开关的方向控制阀 位置，高压罐和附加液压缸，其包括与泵入口和高压罐液压连接的附加压力室，以及限制附加压力室的附加活塞，差动活塞与附加活塞可移动地联接 ，其中在所述方向控制阀的所述第一切换位置中，所述第一压力室与所述第二压力室液压连接，并且在所述方向控制阀的所述第二切换位置中，所述第二压力室不与所述第一压力室液压连接。

公开(公告)号：US10400799B2

公开(公告)日：2019-09-03

申请号：US15537729

申请日：2015-10-28

申请人： VOITH PATENT GMBH

发明人： Hubert Schaber

IPC分类号： F15B11/04 ,  F15B20/00 ,  F15B11/042 ,  F01D17/18 ,  F15B13/02 ,  F15B13/044 ,  F16K31/12

摘要： An actuating drive for a regulation valve has a working cylinder with a piston and a piston rod, which piston rod forms an actuator. The piston delimits a first pressure chamber of the working cylinder. The first pressure chamber has a first pressure port for the introduction of a pressurized working medium for displacing the piston, by exertion of pressure, counter to the force of a spring. An external working medium circuit is connected to the working cylinder for introducing the working medium into or discharging the working medium from, the first pressure chamber. The working medium circuit has a working medium pump. The pump is connected to the first pressure port by a pressure line which is connected to a pressure side of the working medium pump. A check valve or shut-off valve which opens in the direction of the first pressure port is provided in the pressure line.