| 摘要 |
<p>In a delivery conduit for a compressor or an aspiration conduit for an aspirator, which connects the compressor or the aspirator to a closed environment (3), a first valve (4) is inserted, and opening and a closing of which is commanded by a temperature of an external environment. The valve is normally closed for external temperatures which are lower than a predetermined level and open, placing the conduit in communication with the outside environment, when the external temperature exceeds the predetermined level. <IMAGE></p> |
