doi:US20060171821 A1T. Leon BrownUSUS20060171821 Apr 11, 2005 Aug 3, 2006 Brown T L Hydraulic pump jack sytem for reciprocating oil well sucker rods
1. In an oil well pump uiack including a supporting base, a motor` cylinder on the base adapted to be positioned with its axis in alignment with the axis of the well, an annular piston in the cylinder, a sleeve within the cylinder concentric therewith and packing means between outer ...
An oil pumping jack of improved efficiency and safety, with an electrichydraulic manifold that provides soft shift spool in normal operation. Hydraulic compensation in the form of sacrifice of fluid output is provided if the work load increases, so that the system slows down visibly, signalling ...
A hydraulic pump jack for hydraulically actuated well pumps of the general type having pistons driven in one direction to lift liquid up a delivery pipe and having the pistons returned to recharge the said pump, comprising a double-acting surface pump with one pump section arranged to communicate...
HYDRAULIC JACK PUMP, MANUAL 青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译! 翻译结果1翻译结果2翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 液压千斤顶手动泵, 翻译结果2复制译文编辑译文朗读译文返回顶部...
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For example, if a groove is cut in the piston to accommodate a capped T-seal, it is unlikely that an asymmetrical unloaded U-cup seal will work very well. Pressure/hydraulic fluid blow-by, spiraling seal failure, and excessive wear might reduce seal life to just a few minutes in oil ...
* The cylinder is with one high pressure hose to avoid oil leaking that usually happen by the traditional multiple hoses.Cylinder will return to initial condition by itself weight.* Stroke of Hydraulic cylinder is 1475mm, which can satisfy each annular shell with 2630plate one-step...
* Double speed pump design, with the high flow in low pressure. * The actuator can be fast moved on no-load status. Product Specifications Item No Working Pressure (MPa) Pump Type Valve Type Motor Power (KW) Oil Tank Capacity (L) Flow (L/MIN) Voltage(V) / ...
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