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1.发明公开
公开(公告)号：EP4273426A1
公开(公告)日：2023-11-08
申请号：EP21914167.8
申请日：2021-12-23
发明人： WANG, Liping , ZHOU, Zhonghua , YUAN, Wangbo , LIU, Hongguang
IPC分类号： F16K11/22 , F16K11/07 , F16K31/42 , F16K37/00 , F15B13/043
摘要： A hydraulic multi-way valve with independent oil-port control, includes a multi-way valve body (1), an A valve core (8) and a B valve core (9). The multi-way valve body (1) has an A oil port (2) and a B oil port (3), and includes an A cavity (4) and a B cavity (5) independent from each other therein. The A oil port (2), a P high-pressure oil port (6) and a T high-pressure oil port (7) are all in communication with the A cavity (4), the B oil port (3), the P high-pressure oil port (6) and the T high-pressure oil port (7) are all in communication with the B cavity (5). The A valve core (8) is arranged in the A cavity (4), and the B valve core (9) is arranged in the B cavity (5).
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公开(公告)号：EP2944828B1
公开(公告)日：2018-02-21
申请号：EP13891811.5
申请日：2013-11-22
发明人： WANG, Liping , LU, Qiang , CHEN, Zhan , LIU, Hongguang , ZHANG, Guoliang
IPC分类号： F15B13/02
CPC分类号： F16K11/06 , F15B13/0403 , F16K11/0716 , Y10T137/86493 , Y10T137/86702
摘要： Disclosed is an energy-recycling hydraulic control main valve, which is provided with end covers, a valve core, a left one-way valve and a right one-way valve, ; the left one-way valve is composed of a left valve seat, a left cone valve core and a left spring; a conical surface of the left cone valve core is closely attached to a left conical surface of the valve core by the spring force; the right one-way valve is composed of a right valve seat, a right cone valve core and a right spring; and a conical surface of the right cone valve core is closely attached to a right conical surface of the valve core by spring force. The hydraulic main control valve can not only limit the falling speed of a piston, but use the potential energy generated by the gravity action on the piston, thereby achieving energy recycling.
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3.发明公开PLUNGER PUMP POWER CONTROL DEVICE AND CONTROL METHOD THEREOF 审中-公开LEISTUNGSREGELUNGSVORRICHTUNGFÜREINE KOLBENPUMPE UND STEUERUNGSVERFAHRENDAFÜR
公开(公告)号：EP2944818A4
公开(公告)日：2016-12-28
申请号：EP13897807
申请日：2013-12-02
发明人： WANG LIPING , LI TONG , HUA HAIMING , LIN DACHAO , WEI LEI
CPC分类号： F04B49/22 , F04B49/08 , F04B2205/04
摘要： A plunger pump power control device and a control method thereof. The device comprises a valve body, a valve core, a valve sleeve, a stop plug, a spring pre-loaded mechanism, a feedback mechanism and a slide valve.The slide valve is provided within one end of the valve core. The stop plug is provided at one end of the valve body, and the spring pre-loaded mechanism is provided at the other end of. The valve sleeve, the valve core. and the slide valve are provided between the stop plug and the spring pre-loaded mechanism, and the feedback mechanism is hinged on the valve body. The device enables the hydraulic plunger pump to control the output power, the pump power output is simulated by two broken lines, and the error is less. It is flexible to load variable by the valve core through the pressure of the C-cavity.
摘要翻译： 柱塞泵功率控制装置及其控制方法。 该装置包括阀体，阀芯，阀套，止动塞，弹簧预加载机构，反馈机构和滑阀。滑阀设置在阀芯的一端内。 止动塞设置在阀体的一端，弹簧预加载机构设置在另一端。 阀套，阀芯。 并且滑阀设置在止动塞和弹簧预加载机构之间，并且反馈机构铰接在阀体上。 该装置使液压柱塞泵能够控制输出功率，泵功率输出由两根虚线模拟，误差较小。 通过C型腔的压力通过阀芯对变量进行加载是灵活的。
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公开(公告)号：EP2944829A4
公开(公告)日：2016-11-09
申请号：EP13898030
申请日：2013-12-25
发明人： WANG LIPING , YUAN CAIFU , LU QIANG , CHEN ZHAN , LIU HONGGUANG
CPC分类号： E02F9/2225 , E02F9/2267 , F15B13/01 , F15B13/026 , F15B13/0405 , F15B2211/6052 , F16K1/307 , F16K1/526 , F16K15/18 , F16K31/1221 , Y10T137/7762 , Y10T137/7764 , Y10T137/7842
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公开(公告)号：EP3580457A1
公开(公告)日：2019-12-18
申请号：EP17895600.9
申请日：2017-11-06
发明人： WANG, Liping , LIU, Yanyan , LI, Tong
IPC分类号： F04B49/00
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公开(公告)号：EP2944828A1
公开(公告)日：2015-11-18
申请号：EP13891811.5
申请日：2013-11-22
发明人： WANG, Liping , LU, Qiang , CHEN, Zhan , LIU, Hongguang , ZHANG, Guoliang
IPC分类号： F15B13/02
CPC分类号： F16K11/06 , F15B13/0403 , F16K11/0716 , Y10T137/86493 , Y10T137/86702
摘要： Disclosed is an energy-recycling hydraulic control main valve, which is provided with end covers, a valve core, a left one-way valve and a right one-way valve, ; the left one-way valve is composed of a left valve seat, a left cone valve core and a left spring; a conical surface of the left cone valve core is closely attached to a left conical surface of the valve core by the spring force; the right one-way valve is composed of a right valve seat, a right cone valve core and a right spring; and a conical surface of the right cone valve core is closely attached to a right conical surface of the valve core by spring force. The hydraulic main control valve can not only limit the falling speed of a piston, but use the potential energy generated by the gravity action on the piston, thereby achieving energy recycling.
摘要翻译： 公开了一种能量循环液压控制主阀，其具有端盖，阀芯，左单向阀和右单向阀; 左单向阀由左阀座，左锥阀芯和左弹簧构成; 左锥形阀芯的锥形表面通过弹簧力紧密地附接到阀芯的左锥形表面; 正确的单向阀由右阀座，右锥阀芯和右弹簧组成， 并且右锥形阀芯的锥形表面通过弹簧力紧密地附接到阀芯的右锥形表面。 液压主控制阀不仅可以限制活塞的下落速度，还可以将重力作用产生的势能用于活塞上，从而实现能量循环。
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公开(公告)号：EP2944828A4
公开(公告)日：2016-11-02
申请号：EP13891811
申请日：2013-11-22
发明人： WANG LIPING , LU QIANG , CHEN ZHAN , LIU HONGGUANG , ZHANG GUOLIANG
IPC分类号： F15B13/02
CPC分类号： F16K11/06 , F15B13/0403 , F16K11/0716 , Y10T137/86493 , Y10T137/86702
摘要： Disclosed is an energy-recycling hydraulic control main valve, which is provided with end covers, a valve core, a left one-way valve and a right one-way valve, ; the left one-way valve is composed of a left valve seat, a left cone valve core and a left spring; a conical surface of the left cone valve core is closely attached to a left conical surface of the valve core by the spring force; the right one-way valve is composed of a right valve seat, a right cone valve core and a right spring; and a conical surface of the right cone valve core is closely attached to a right conical surface of the valve core by spring force. The hydraulic main control valve can not only limit the falling speed of a piston, but use the potential energy generated by the gravity action on the piston, thereby achieving energy recycling.
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公开(公告)号：EP2944829A1
公开(公告)日：2015-11-18
申请号：EP13898030.5
申请日：2013-12-25
发明人： WANG, Liping , YUAN, Caifu , LU, Qiang , CHEN, Zhan , LIU, Hongguang
IPC分类号： F15B13/02
CPC分类号： E02F9/2225 , E02F9/2267 , F15B13/01 , F15B13/026 , F15B13/0405 , F15B2211/6052 , F16K1/307 , F16K1/526 , F16K15/18 , F16K31/1221 , Y10T137/7762 , Y10T137/7764 , Y10T137/7842
摘要： A pressure compensation valve comprises a valve body, a valve sleeve fixedly mounted on the valve body, and a spool disposed in a valve hole of the valve body and capable of moving. The valve sleeve and the spool are sequentially provided with a piston and a return spring. The piston is placed on an inner hole of the valve sleeve. The return spring is internally provided within a pressure chamber formed between the piston and the valve sleeve, and acts on a transverse end surface of the piston. A check valve only allowing a single-direction flow to an LS flow channel is disposed in an oil feeding chamber of the valve body. The spool establishes or blocks a connection between the oil feeding chamber and an oil discharging chamber. The pressure compensation valve changes a pressure compensation feature, that is, changes an effective pressure acting surface (A1); for example, if the effective pressure acting surface (A1) is increased, force pushing the piston is increased with respect to blocking, and the pressure in the oil feeding chamber is increased, thereby making a pressurized liquid difficult to flow; on the contrary, if the effective pressure acting surface (A1) is decreased, the pressurized liquid becomes easy to flow. The structure is simple, requires low cost, and increases the utilization rate of a product.
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公开(公告)号：EP2944818A1
公开(公告)日：2015-11-18
申请号：EP13897807.7
申请日：2013-12-02
发明人： WANG, Liping , LI, Tong , HUA, Haiming , LIN, Dachao , WEI, Lei
IPC分类号： F04B49/22
CPC分类号： F04B49/22 , F04B49/08 , F04B2205/04
摘要： A plunger pump power control device and a control method thereof. The device comprises a valve body, a valve core, a valve sleeve, a stop plug, a spring pre-loaded mechanism, a feedback mechanism and a slide valve.The slide valve is provided within one end of the valve core. The stop plug is provided at one end of the valve body, and the spring pre-loaded mechanism is provided at the other end of. The valve sleeve, the valve core. and the slide valve are provided between the stop plug and the spring pre-loaded mechanism, and the feedback mechanism is hinged on the valve body. The device enables the hydraulic plunger pump to control the output power, the pump power output is simulated by two broken lines, and the error is less. It is flexible to load variable by the valve core through the pressure of the C-cavity.
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