发明名称 |
A SYSTEM, METHOD AND APPARATUS FOR REDUCING FRICTIONAL FORCES AND FOR COMPENSATING SHAPE MEMORY ALLOY-ACTUATED VALVES AND VALVE SYSTEMS AT HIGH TEMPERATURES |
摘要 |
<p>A valve system including a number of shape memory alloy (“SMA”)-actuated valves for controlling the flow of fluids is disclosed as is a variety of types of SMA-actuated valves and methods of operation. In one embodiment, a valve system includes a housing having a substantially closed cavity as well as a second port for communicating a fluid. Further, the valve system includes a first SMA actuator configured to control the position of the first seal to vary fluid flow through the firs port, and a first temperature compensator for adjusting the position of the seal by an amount proportional to temperature. A second SMA-actuated valve, driven by either a unidirectional or a bidirectional SMA actuator, controls the position of the second seal to vary fluid flow through the second port, and a second temperature compensator for adjusting the position of the second seal by another amount proportional to temperature.</p> |
申请公布号 |
EP1664604(B1) |
申请公布日期 |
2012.11.07 |
申请号 |
EP20040783130 |
申请日期 |
2004.09.03 |
申请人 |
ALFMEIER PRAEZISION AG BAUGRUPPEN UND SYSTEMLOESUNGEN |
发明人 |
SZILAGYI, ANDREI;VON BEHRENS, PETER, EMERY;GHORBAL, ALI;SURENDRAN, SANDHEEP, K.;MAEDER, JEAN-PIERRE |
分类号 |
F16K31/00;F16K;G05D23/08 |
主分类号 |
F16K31/00 |
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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