VACUUM REGULATOR Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: vacuum regulator comprises a casing 1 with a control chamber 8 accommodated in controlled-vacuum chamber 2 with inlet and outlet pipes. Regulator has an additional chamber enveloping the hollow sphere of the control chamber and communicating with the outlet pipe. Said chamber is made of a flexible material. Regulator also has a double-wall constant-vacuum chamber 4 with equidistant radial through channels 5, said chamber being connected with the outlet pipe. The internal perforated surface of said chamber is provided with bypass pipes 6 capable of contacting with the control chamber 8. The total cross-sectional area of the radial channels is larger than that of the bypass pipes 6. EFFECT: improved design. 1 dwg