VACUUM REGULATOR Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: vacuum regulator has housing with inlet and outlet branch pipes, bellows with rigid base, chambers of controlled vacuum and atmospheric pressure, gate, spring having adjusting screw, and unit for coupling the spring with the rigid base of the bellows. The walls of the inlet and outlet branch pipes are extension of the housing walls. The coupling unit of the spring with the rigid base of the bellows is constructed as a sleeve secured in the opening made in the center of the rigid base. The open end of the sleeve is positioned inside the atmospheric pressure chamber and provided with a ring deflector. The deflector is the first support for a spring mounted inside the sleeve. The deflector encloses guides having an adjusting screw coupled with the second spring support. The center of the bottom of the sleeve is pivotally connected with one of the ends of the gate through a tie. The gate is rotatable and mounted on the rocking axle. The rocking axle passes through the center of the gate and center of the outlet branch pipe for permitting changing of a space between its walls. EFFECT: simplified structure. 1 dwg