GAS PRESSURE ADJUSTER Russian patent published in 2004 - IPC

FIELD: gas pressure adjusters engineering.

SUBSTANCE: device ha throttle 1, executing device 2, consisting of bolt 3, saddle 4, input 5, output 6 and controlling 7 chambers, pilot 8 including adjusting valve 9, membrane block 10 with membranes 11, 12 and adjustment mechanism 13 consisting of adjusting screw 14 and springs 15, 16, 17, reserve channel 18 having pneumatically controlled normal-closed type locking device 19 connecting input 5 and control 7 chambers of executing device 2, emergency valve 20 placed in pilot 8 and interacting with pneumatically controlled normal-closed type locking device 19 via channel 21, while input chamber 5 of executing device 2 is connected to throttle 1 by channel 22, which is in turn connected to control chamber 7 via channel 23 and two adjusting valve 9 via channel 24, and pilot 8 is connected to output chamber 6 of executing device 2 by channel 25 and 26.

EFFECT: broader functional capabilities and higher reliability by providing for emergency closure in case of not allowed increase of output gas pressure.

1 dwg