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公开(公告)号：US10851772B2
公开(公告)日：2020-12-01
申请号：US16277432
申请日：2019-02-15
申请人： Voith Patent GmbH
发明人： Magnus Junginger
IPC分类号： F04B49/00 , F15B7/00 , F01L1/46 , F04B1/0421 , F15B11/024
摘要： The invention relates to a hydraulic drive having a differential cylinder which has a cylinder piston and a piston rod which is connected to the cylinder piston. The cylinder piston is arranged in a displaceable manner in a cylinder chamber in order to extend and retract piston rod. The cylinder chamber is separated by cylinder piston into a piston side, and a ring side with piston rod, each with a variable volume. The piston side and ring side are separated from one another by the piston and are connected to one another in a fluid conducting manner via a short-circuit line. The short-circuit line includes a switching valve for optionally shutting off short-circuit line in a fluid-tight manner. A switching valve can be switched into its blocking position at least indirectly in dependence on the pressure on piston side of cylinder chamber.
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公开(公告)号：US20190178242A1
公开(公告)日：2019-06-13
申请号：US16277432
申请日：2019-02-15
申请人： Voith Patent GmbH
发明人： Magnus Junginger
摘要： The invention relates to a hydraulic drive having a differential cylinder which has a cylinder piston and a piston rod which is connected to the cylinder piston. The cylinder piston is arranged in a displaceable manner in a cylinder chamber in order to extend and retract piston rod. The cylinder chamber is separated by cylinder piston into a piston side, and a ring side with piston rod, each with a variable volume. The piston side and ring side are separated from one another by the piston and are connected to one another in a fluid conducting manner via a short-circuit line. The short-circuit line includes a switching valve for optionally shutting off short-circuit line in a fluid-tight manner. A switching valve can be switched into its blocking position at least indirectly in dependence on the pressure on piston side of cylinder chamber.
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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.
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公开(公告)号：US20160084278A1
公开(公告)日：2016-03-24
申请号：US14858326
申请日：2015-09-18
申请人： Voith Patent GmbH
发明人： Magnus Junginger
CPC分类号： F15B11/17 , B30B15/161 , F15B1/04 , F15B11/022 , F15B11/036 , F15B13/06 , F15B2211/20538 , F15B2211/20561 , F15B2211/20576 , F15B2211/27 , F15B2211/30525 , F15B2211/30565 , F15B2211/321 , F15B2211/327 , F15B2211/329 , F15B2211/625 , F15B2211/7055 , F15B2211/775
摘要： A hydraulic drive including a first differential cylinder that includes a first and a second pressure chamber and a first piston that separates the first from the second pressure chamber and having two pumps delivering in opposite direction. The hydraulic drive further includes a second differential cylinder that includes a first and a second pressure chamber and a second piston that separates the first pressure chamber from the second pressure chamber, and a directional control valve that has a first and a second switching position. The pumps in the first switching position are respectively hydraulically connected via pressure chambers of the first differential cylinder that are different from each other and whereby the pumps in the second switching position are respectively connected via pressure chambers of the second differential cylinder that are different from each other.
摘要翻译： 一种液压驱动装置，包括：第一差速器缸，其包括第一和第二压力室;以及第一活塞，其将第一和第二压力室分离，并且具有沿相反方向输送的两个泵。 液压驱动器还包括第二差速缸，其包括第一和第二压力室以及将第一压力室与第二压力室分离的第二活塞和具有第一和第二开关位置的方向控制阀。 第一切换位置的泵分别通过第一差动缸的压力室彼此不同的液压连接，并且由此第二切换位置中的泵分别通过与第二差速缸不同的压力室连接 其他。
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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
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.
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公开(公告)号：US09689407B2
公开(公告)日：2017-06-27
申请号：US14858326
申请日：2015-09-18
申请人： Voith Patent GmbH
发明人： Magnus Junginger
CPC分类号： F15B11/17 , B30B15/161 , F15B1/04 , F15B11/022 , F15B11/036 , F15B13/06 , F15B2211/20538 , F15B2211/20561 , F15B2211/20576 , F15B2211/27 , F15B2211/30525 , F15B2211/30565 , F15B2211/321 , F15B2211/327 , F15B2211/329 , F15B2211/625 , F15B2211/7055 , F15B2211/775
摘要： A hydraulic drive including a first differential cylinder that includes a first and a second pressure chamber and a first piston that separates the first from the second pressure chamber and having two pumps delivering in opposite direction. The hydraulic drive further includes a second differential cylinder that includes a first and a second pressure chamber and a second piston that separates the first pressure chamber from the second pressure chamber, and a directional control valve that has a first and a second switching position. The pumps in the first switching position are respectively hydraulically connected via pressure chambers of the first differential cylinder that are different from each other and whereby the pumps in the second switching position are respectively connected via pressure chambers of the second differential cylinder that are different from each other.
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