| 摘要 |
The membrane-controlled vacuum outlet system is for a toilet bowl (1) with a normally closed outlet valve (2) connecting the bowl with a short outlet pipe (3) downstream limited by a second normally closed valve (4) and connected to a space (7) with variable vol. Before the outlet valve opens, the outlet pipe and the space connected to it are placed under a powerful vacuum so that the toilet bowl contents are pressed momentarily by atmospheric pressure into the outlet pipe when the outlet valve is opened. The vacuum in the outlet pipe is produced with a flexible membrane-like part (11) located in a pressure chamber (9) connected to the outlet pipe. |
