VACUUM REGULATOR Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: vacuum regulator has a housing accommodating vacuum (3) and atmospheric pressure (2) chamber having a common wall made as flexible diaphragm 5, in whose center spring-loaded bearing part 6 is secured, the diaphragm and bearing part have a duct. The spring is installed in guide sleeve 9, and the duct communicates the variable and constant vacuum chambers and has a perforated partition, connected to whose center is central streamlined valve 13 having extension piece 14 installed in a guide rigidly secured in the center of outlet connection 17 with the aid of a stop; the central valve is engageable with the seat made in an annular plate (annular connection strip) secured in the regulator housing, separating the constant atmospheric pressure and constant vacuum chambers, and connected to the edge of the bearing part duct with the aid of a cylindrical corrugation. EFFECT: improved design. 1 dwg