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公开(公告)号：US10830348B2
公开(公告)日：2020-11-10
申请号：US15145864
申请日：2016-05-04
发明人： Suenje Marsch , Bernd Hames , Michael Hein , Arne Streblau
IPC分类号： F16H61/421 , F16H61/423 , F16H61/4017 , F16H61/4026
摘要： The invention relates to a hydraulic machine, in particular to a hydraulic motor with two working lines, from one of which a high pressure line and from the other one a low pressure line is branched off. An electronic control unit and a servo displacement unit are provided to control the displacement of the displacement volume of a drive mechanism of the hydraulic machine, wherein the displacement volume can be determinated by the displacement of a servo piston within the servo displacement unit. For this, the servo piston can be loaded at least on one side via a servo pressure line with hydraulic fluid under servo pressure, wherein the servo pressure level can be adjusted by a control spool arranged moveable within a control valve. For this, hydraulic fluid from the low pressure line or, perhaps, from the high pressure line is guidable via the control valve to the servo pressure line if a suitable control signal is available at a switching valve.
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公开(公告)号：US20160341223A1
公开(公告)日：2016-11-24
申请号：US15145864
申请日：2016-05-04
发明人： Suenje Marsch , Bernd Hames , Michael Hein , Arne Streblau
IPC分类号： F15B13/044 , F15B13/04 , F15B21/08 , F15B11/08
摘要： The invention relates to a hydraulic machine, in particular to a hydraulic motor with two working lines, from one of which a high pressure line and from the other one a low pressure line is branched off. An electronic control unit and a servo displacement unit are provided to control the displacement of the displacement volume of a drive mechanism of the hydraulic machine, wherein the displacement volume can be determinated by the displacement of a servo piston within the servo displacement unit. For this, the servo piston can be loaded at least on one side via a servo pressure line with hydraulic fluid under servo pressure, wherein the servo pressure level can be adjusted by a control spool arranged moveable within a control valve. For this, hydraulic fluid from the low pressure line or, perhaps, from the high pressure line is guidable via the control valve to the servo pressure line if a suitable control signal is available at a switching valve.
摘要翻译： 本发明涉及一种液压机，特别涉及具有两条工作线的液压马达，其中一条高压线路和另一条低压线路分支。 提供电子控制单元和伺服位移单元以控制液压机械的驱动机构的排量的位移，其中可以通过伺服位移单元内的伺服活塞的位移来确定排量。 为此，伺服活塞可以通过伺服压力线至少在一侧通过伺服压力下的液压流体加载，其中伺服压力水平可以通过控制阀调节，控制阀可以在控制阀内移动。 为此，如果在切换阀处有合适的控制信号，则来自低压管路的液压流体或者可能来自高压管路的液压流体可通过控制阀向伺服压力管线引导。
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公开(公告)号：US10167882B2
公开(公告)日：2019-01-01
申请号：US15051858
申请日：2016-02-24
发明人： Arne Streblau
IPC分类号： F16H61/4104 , F15B21/04 , F15B7/00 , F15B13/02 , F15B21/00 , F16H61/4165
摘要： A valve housing includes a cylindrical valve bore with a high pressure inlet, a low pressure inlet and a discharge outlet. A first flushing valve spool is arranged elastically pre-stressed within the valve bore for enabling a fluid connection between the low pressure inlet and the discharge outlet. A shuttle valve spool is arranged elastically pre-stressed within the valve bore for enabling the fluid connection between the low pressure inlet and the discharge outlet. The first flushing valve spool is moveable into an open position if the fluid pressure at the low pressure inlet exceeds a first threshold value, and the shuttle valve spool is moveable into an open position for connecting the low pressure inlet with the discharge outlet, if the pressure difference between the high pressure inlet and the low pressure inlet exceeds a second threshold value.
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公开(公告)号：US20170023032A1
公开(公告)日：2017-01-26
申请号：US15051858
申请日：2016-02-24
发明人： Arne Streblau
IPC分类号： F15B21/04
CPC分类号： F15B21/042 , F15B7/006 , F15B13/024 , F15B21/005 , F15B21/045 , F15B2211/20561 , F15B2211/20569 , F15B2211/27 , F15B2211/3052 , F15B2211/31558 , F15B2211/50518 , F15B2211/5159 , F15B2211/611 , F15B2211/62 , F16H61/4104 , F16H61/4165
摘要： A hydraulic loop-flushing device (50) for a hydrostatic apparatus (1) comprising a valve housing (8) having a cylindrical valve bore (9) with a high pressure inlet (5 or 6), a low pressure inlet (6 or 5) and a discharge outlet (7). A first flushing valve spool (12) is arranged elastically pre-stressed within the valve bore (9) for enabling a fluid connection between the low pressure inlet (6 or 5) and the discharge outlet (7) by means of a first fluid channel (16). Further, a shuttle valve spool (22) is arranged elastically pre-stressed within the valve bore (9) for further enabling the fluid connection between the low pressure inlet (6 or 5) and the discharge outlet (7) by means of a fluid passageway (29). The first flushing valve spool (12) is moveable into an open position, in which the first fluid channel (16) is open, if the fluid pressure at the low pressure inlet (6 or 5) exceeds a first threshold value, and the shuttle valve spool (22) is moveable into an open position, in which the fluid passageway (29) is open for connecting the low pressure inlet (6 or 5) with the discharge outlet (7), if the pressure difference between the high pressure inlet (5 or 6) and the low pressure inlet (6 or 5) exceeds a second threshold value. For this the first flushing valve spool (12) and the shuttle valve spool (22) are arranged concentrically and moveable relative to each other, and the fluid connection between the low pressure inlet (6 or 5) and the discharge outlet (7) is enabled only, if both the first flushing valve spool (12) and the shuttle valve spool (22) are in the respective open positions.
摘要翻译： 一种用于静液压设备（1）的液压回路冲洗装置（50），包括具有带有高压入口（5或6）的圆柱形阀孔（9）的阀壳体（8），低压入口（6或5 ）和排出口（7）。 第一冲洗阀阀芯（12）被布置成在阀孔（9）内弹性预应力，用于通过第一流体通道（6）可以在低压入口（6或5）和排出口（7）之间进行流体连接 （16）。 此外，穿梭阀阀芯（22）在阀孔（9）内弹性地预应力地布置，以进一步使得能够通过流体在低压入口（6或5）和排出口（7）之间的流体连接 通道（29）。 如果低压入口（6或5）处的流体压力超过第一阈值，则第一冲洗阀阀芯（12）可移动到打开位置，第一流体通道（16）打开，打开位置 阀芯（22）可移动到打开位置，其中流体通道（29）打开以将低压入口（6或5）与排出口（7）连接，如果高压入口 （5或6）和低压入口（6或5）超过第二阈值。 为此，第一冲洗阀阀芯（12）和往复阀阀芯（22）相对于彼此同心并且可移动地布置，并且低压入口（6或5）和排出口（7）之间的流体连接是 如果第一冲洗阀阀芯（12）和梭阀阀芯（22）都处于相应的打开位置。
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