| 摘要 |
<p>The system has an air pump system (3) with two separate chambers (2, 6), and a control system (17), where chambers exhibit a common boundary surface. The chamber (2) is directly connected to an air core over a line (1) and the chamber (6) is connected to the core over a line (7) by a pressure adjusting valve (13). The chamber (6) is connected to ambient air over a third line (9), where an air filter (11) is provided in the line (9).</p> |
