| 摘要 |
A circuit arrangement for influencing a temperature-dependent expanding-material element (1) as specified, which element can be heated by an electrical heating element (4). The expanding-material element (1) is continuously heated via a current-reducing component (8) such that the temperature of said element in the quiescent position is slightly below the temperature at which the stroke movement of the operating piston (2) starts. <IMAGE>
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