| 摘要 |
<p>The regulator consists of at least one inflatable tube (12A,12B) which, when inflated, cover the air outlets (13) in the distribution duct casing. When two inflatable tubes are used they are mounted opposite one another so that they meet in the middle when inflated. Each of the inflatable tubes is closed at both ends to form a chamber with an air intake and outlet, and where a single inflatable tube is used its outer surface can have a lengthwise rib which interacts with a fixed component when inflated. <IMAGE></p> |
