| 摘要 |
<p>The invention concerns a sealing sleeve (17) forming a casing covering the rotor (8) of the step engine (1) directly engaged with the control rod (15) of the regulating valve (12). The sleeve is sealingly fixed above the central part of the flange (16). The latter is a T-shaped part whereof the lower end acts as a seat for the regulating valve (2). The invention is applicable to bath water heaters and gas boilers.</p> |
