| 摘要 |
<p>The device (2) has a limiting stop (19) attached to adjusting units (14, 15), a handle (18) or a movement transmission element (20). The limiting stop stops or limits adjustment movement of the adjusting units during standard operation of the handle before reaching closure position. The limiting stop is surmounted by supplementary initiated actuation operation of an operator. The adjusting units are transferred to the closure position. The adjusting units suppress and expand free passage cross-sections for controlling primary and/or secondary air.</p> |
