- 专利标题: A PRESSURE COMPENSATOR FOR OLEODYNAMIC APPLICATIONS
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申请号: US15516562申请日: 2015-09-29
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公开(公告)号: US20170300071A1公开(公告)日: 2017-10-19
- 发明人: Luigi PEVERI
- 申请人: WELL EQUIPMENTS INTERNATIONAL S.R.L.
- 优先权: ITMI2014A001724 20141002
- 国际申请: PCT/IB2015/001722 WO 20150929
- 主分类号: G05D16/10
- IPC分类号: G05D16/10
摘要:
A pressure compensator, particularly for oleodynamic applications, comprising two cylinders: a compensator cylinder in which is slidingly engaged a first piston comprising a first piston rod, and a reducing cylinder, in which is slidingly engaged a second piston comprising a second piston rod axially connected to the first piston rod; said compensator cylinder being coupled to a main oleodynamic cylinder; said compensator cylinder having a size so designed as to provide the same area ratio as that of the main cylinder, thereby to a set position of said main cylinder piston corresponding a precise position of the first piston of the compensator cylinder; said reducing cylinder comprising at least a low-pressure chamber coupled to a pressure gauge; a displacement of the reducing cylinder piston rod either increases or decreases a pressure in said low-pressure chamber, proportionately to a working pressure in the main cylinder.