发明公开
- 专利标题: VERFAHREN UND VORRICHTUNG ZUR STELLUNGSANZEIGE VON HYDRAULISCH BETÄTIGTEN ARMATUREN
- 专利标题(英): Method and device for position display of hydraulically actuated fittings
- 专利标题(中): 水硬性位置指示器的方法和装置操作阀
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申请号: EP13789304.6申请日: 2013-11-11
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公开(公告)号: EP2926014A2公开(公告)日: 2015-10-07
- 发明人: STOLZ, Ingo , PLAAS, Heinrich
- 申请人: Pleiger Maschinenbau Gmbh & Co. Kg
- 申请人地址: Im Hammertal 51 58456 Witten DE
- 专利权人: Pleiger Maschinenbau Gmbh & Co. Kg
- 当前专利权人: Pleiger Maschinenbau Gmbh & Co. Kg
- 当前专利权人地址: Im Hammertal 51 58456 Witten DE
- 代理机构: Klingseisen, Franz
- 优先权: DE102012222074 20121203
- 国际公布: WO2014086554 20140612
- 主分类号: F15B15/28
- IPC分类号: F15B15/28 ; F15B11/12 ; F15B19/00
摘要:
The invention relates to a method for displaying the position of a hydraulically actuated fitting, with a piston (121) in an actuating cylinder (1.2) for actuating the fitting (1.1), the piston being connected via two hydraulic lines (2, 3) to a changeover valve (7), by means of which the hydraulic lines can be switched between pressure-carrying feeding and de-pressurized return. The flow of the hydraulic fluid flowing through one of the hydraulic lines is converted into a plurality of electrical pulses, each of which corresponds to a predetermined volume unit of the hydraulic fluid. The changeover valve (7) is connected to supply lines (P, T) on which additional changeover valves for actuating additional fittings (In) are connected, and the changeover valves (7) are connected via a branch line (T1) to the common return line (T) provided for all fittings. A preload pressure higher than the pressure in the common return line (T) is maintained at each changeover valve (7) in the branch line (T1) to the return line (T). In addition, a program which processes the pulses from the flow sensor performs a learning cycle.
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