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1. 发明授权

US07112011B2 Hydro-pneumatic tensioner with stiffness altering secondary accumulator 有权
标题翻译：液压气动张紧器具有改变次级蓄能器的刚度
公开(公告)号：US07112011B2
公开(公告)日：2006-09-26
申请号：US11003051
申请日：2004-12-03
申请人： Jeffery Kirk McCarty , Andrew Campbell Kelly , Joseph William Pallini, Jr.
发明人： Jeffery Kirk McCarty , Andrew Campbell Kelly , Joseph William Pallini, Jr.
IPC分类号： E21B17/01 , E21B19/09
CPC分类号： F16F9/064 , E21B19/006 , F16F9/062 , F16F9/512
摘要： A hydro-pneumatic tensioner includes a barrel having an inner bore and a pressurized fluid contained within to form at least part of a primary accumulator having a preset volume of gas at a nominal pressure. A piston having a piston rod extending from an aperture in the barrel is slidably carried in the bore of the barrel and is in communication with the pressurized fluid and positioned to increase the fluid pressure when the piston strokes in the direction of the pressurized fluid. A secondary accumulator also has a preset volume of gas at a preselected pressure. A fluid separator maintains functional separation of the fluid volumes of the primary and secondary accumulators when the primary accumulator pressure is less than the preselected secondary accumulator pressure. The fluid separator allows functional combining of the fluid volumes of the primary and secondary accumulators when the primary accumulator pressure equals or is greater than the preselected secondary accumulator pressure.
摘要翻译：液压气动张紧器包括具有内孔和包含在其内的加压流体的桶，以形成具有在额定压力下的预设体积的气体的初级蓄能器的至少一部分。具有从筒中的孔延伸的活塞杆的活塞可滑动地承载在筒的孔中并且与加压流体连通并且定位成当活塞沿加压流体的方向行进时增加流体压力。次级蓄能器还具有在预选压力下的预设体积的气体。当初级蓄能器压力小于预选的次级蓄能器压力时，流体分离器保持初级和次级蓄能器的流体体积的功能分离。当初级蓄能器压力等于或大于预选的次级蓄能器压力时，流体分离器允许初级和次级蓄能器的流体体积的功能组合。

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