| 摘要 |
<p>The invention relates to a rotary switching device having a conical chamber permitting modification of the supply to the apparatus to which it is allocated, by reversing the fluids or the directions of circulation of the fluids in the ducts. This switching device comprises: a principal hollow conical body of revolution (10), provided with a plurality of inlet and outlet ports (11) for the fluids intended to be connected to apparatuses by arrival and departure ducts for the said fluids; a conical chamber valve member of revolution having the same conicity as the interior of the body (10), the axis (9) of the body and of the chamber valve member being coincident, this chamber including at least one switching stage, constituted by a plurality of windows cooperating with the aperture of the ports (11) of the body, and at least one internal partition delimiting at least two distinct spaces constituting the channels of the stage; a means for displacing (19) the chamber valve member (26) along its axis (9) to permit the driving-in and the release of the said chamber valve member from the internal wall of the body (10); a means for rotating (70) the chamber valve member about its axis (9) to permit a change in orientation; a sealing means disposed around the windows of the chamber valve member.</p> |
