| 摘要 |
<p>The device has two control units (30, 32) movable relative to each other at two inlet channels (16, 18). A control channel (42) is designed depending on a relative position of the control units for a communicating connection between one of the inlet channels and a outlet channel (38). An auxiliary channel (40) is in a permanent, communicating connection with the control channel, such that the communicating connection of the auxiliary channel with one of the inlet channels is ensured dependent of the relative position of the control units.</p> |
