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公开(公告)号：US20160017997A1
公开(公告)日：2016-01-21
申请号：US14333948
申请日：2014-07-17
Applicant: Danfoss Power Solutions Inc.
Inventor： Jaromir Tvaruzek , Vince Ewald , Michael J. Romey , Charlie Dvorak
CPC classification number: F16J1/08 , F15B15/1452 , F16J9/26
Abstract: A servo piston having an elongated member with a first end and a second end. The second end has a servo piston head disposed within a servo piston bore. The servo piston head has at least two grooves disposed about an outer edge of the servo piston head. At last one sealing ring is received within each groove. The use of rings in at least two grooves reduces side/transversal vibration and the servo bore load. At the same time, the space between the two grooves creates a pressurized oil squeeze film between the servo piston head and servo piston bore, sealed by the rings, which provides both a sealing and damping function at the same time.
Abstract translation: 伺服活塞具有带有第一端和第二端的细长构件。 第二端具有设置在伺服活塞孔内的伺服活塞头。 伺服活塞头具有围绕伺服活塞头的外边缘设置的至少两个凹槽。 最后一个密封环被接纳在每个槽内。 在至少两个槽中使用环可减少侧向/横向振动和伺服孔负载。 同时，两个槽之间的空间在伺服活塞头和伺服活塞孔之间产生加压油挤压膜，由环密封，同时提供密封和阻尼功能。
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公开(公告)号：US09759212B2
公开(公告)日：2017-09-12
申请号：US14944321
申请日：2015-11-18
Applicant: DANFOSS POWER SOLUTIONS INC.
Inventor： Kevin R. Lingenfelter , Alex Bruns , Christian Daley , Vince Ewald , Danny Wakefield
CPC classification number: F04B49/22 , F04B1/324 , F04B49/065 , F04B49/08 , F04B2201/0204
Abstract: An electrical pressure control load sense system having a pump connected inline to an operator control spool valve and a compensation circuit. The system also has a plurality of sensors, at least one pressure transducer, a micro-processor, a fixed orifice, a proportional pressure relief valve, and a swashplate angle sensor.
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3.发明申请ELECTRONIC LOAD SENSE CONTROL WITH ELECTRONIC VARIABLE LOAD SENSE RELIEF, VARIABLE WORKING MARGIN, AND ELECTRONIC TORQUE LIMITING 有权电子负载感应控制，具有电子可变负载感应放电，可变工作电压和电子扭矩限制公开(公告)号：US20160195083A1
公开(公告)日：2016-07-07
申请号：US14944321
申请日：2015-11-18
Applicant: DANFOSS POWER SOLUTIONS INC.
Inventor： Kevin R. Lingenfelter , Alex Bruns , Christian Daley , Vince Ewald , Danny Wakefield
CPC classification number: F04B49/22 , F04B1/324 , F04B49/065 , F04B49/08 , F04B2201/0204
Abstract: An electrical pressure control load sense system having a pump connected inline to an operator control spool valve and a compensation circuit. The system also has a plurality of sensors, at least one pressure transducer, a micro-processor, a fixed orifice, a proportional pressure relief valve, and a swashplate angle sensor.
Abstract translation: 一种电压力控制负载感测系统，其具有连接到操作者控制滑阀和补偿电路的泵。 该系统还具有多个传感器，至少一个压力传感器，微处理器，固定孔，比例压力释放阀和斜盘角度传感器。
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