| 摘要 |
The invention relates to a reduced-pressure servo device, of the type comprising a casing made of two parts, a diaphragm clamped between these two parts, and a return spring bearing against a membrane flat face. According to the invention, the return spring 5 has a rounded and elongate cross-sectional shape which corresponds to the cross-sectional shape of the two casing parts 2, 3. <IMAGE>
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