发明名称 |
ACTUATOR THAT FUNCTIONS BY MEANS OF A MOVABLE COIL ARRANGEMENT |
摘要 |
<p>The invention relates to an actuator for actuating a valve installed in a hydraulic or compressed air system, comprising a coil support which can be displaced by means of air space induction in a magnetically conducting housing on a magnetic cylinder composed of a permanent magnet and a cylinder pole disk. The invention is characterised in that the dimensions of the permanent magnet ( 16 ) and the pole disk ( 17 ) correspond to each other in such a way that the diameter of the front surface of the permanent magnet ( 16 ) is at least the same size as the circumferential surface of a neighbouring pole disk ( 17 ) and that the width of the coil ( 23 ) associated with the pole disk ( 17 ) exceeds the width of the pole disk ( 17 ) by the lift amplitude of the coil support ( 19 ). According to the invention, the actuator for actuating a valve used in fluidic engineering is disposed in such a way that the coil support ( 19 ) is displaceable in a fluidic medium and the air gap ( 24 ), arranged between the coil support ( 19 ) and a magnetic cylinder pipe ( 15 ) surrounding the permanent magnet ( 16 ) and the associated pole disk ( 17 ) has a maximum width whereby a laminated lubricating film is formed without displacing the surrounding fluid.</p> |
申请公布号 |
EP1334492(A1) |
申请公布日期 |
2003.08.13 |
申请号 |
EP20010996866 |
申请日期 |
2001.11.14 |
申请人 |
ELEKTRISCHE AUTOMATISIERUNGS- UND ANTRIEBSTECHNIK EAAT GMBH;RAUSCH, HARTMUTH |
发明人 |
RAUSCH, HARTMUTH;BUDIG, PETER-KLAUS;WERNER, RALF |
分类号 |
H01F7/06;H02K33/18;(IPC1-7):H01F7/06 |
主分类号 |
H01F7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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