VACUUM REGULATOR Russian patent published in 1996 - IPC

FIELD: agriculture. SUBSTANCE: vacuum regulator has housing 1 with variable vacuum chamber 2 provided with outlet branch pipe 3, and constant atmospheric pressure chamber 4, both chambers being divided by spring-loaded diaphragm 5. Connected to diaphragm 5 for vertical axial displacement is hollow central cylindrical valve 11 installed for engagement above fixed gate 12 and inlet branch pipe 13. Diaphragm 5 is connected with hollow central cylindrical valve 11 made in form of movable branch pipe through guides 9 and braces 10. Conical gate 12 is secured in regulator housing by means of stops and is located above outlet branch pipe. Gate 12 has extension 15 placed in guide. Valve is connected through cylindrical corrugation with edge of central hole in circular partition 17 separating variable vacuum chamber from constant vacuum chamber. EFFECT: enlarged operating capabilities. 1 dwg