| 摘要 |
1500445 Fluid-pressure servomotor systems SOC EUROPEENNE DE DISTRIBUTION ELECTROMECANIQUE 16 April 1975 [17 April 1974] 15738/75 Heading G3P The pressure in a pipe 6 is maintained constant by a float-operated pilot valve 27 in a manometer 24 connected to the pipe, the pilot valve controlling the pressure on a diaphragm M to connect a chamber 5 leading to the pipe either to a source 3 of compressed air or to atmosphere 16, 17. The connections are controlled by valves 11, 12 mounted on a rod 9 while the pilot valve controls communication between a vent 25 and a conduit 20 connected through a restrictor 22 either with a source of compressed air or with the chamber 5. |
