VACUUM REGULATOR Russian patent published in 1995 - IPC

FIELD: farming. SUBSTANCE: vacuum regulator has housing 1 with vacuum chamber 3 and atmospheric pressure chamber 2 arranged inside it. Chambers 2 and 3 have common wall made in form of flexible diaphragm 5 in whose center spring-loaded bearing part 6 is secured. Passage is made in the diaphragm and bearing part. Spring 7 is mounted in guide sleeve 8. Passage is used to connect varying and constant vacuum chambers. Movable branch pipe 12 located in atmospheric pressure chamber is secured to bearing part and its outlet hole is partially closed with circular wall 13 with seat 14 for the valve embracing central streamlined valve 15 rigidly secured in center of outlet branch pipe by means of stop and braces. Valve 15 is mounted in such position that its cone-shaped portion is engageable with seat of valve; movable branch pipe is provided with guides movably connected with stop 16 and constant vacuum chamber is separated from atmospheric pressure chamber by means of cylindrical corrugation 20 secured to edge of hole in circular wall and to regulator housing. EFFECT: enhanced reliability. 1 dwg