AUTOMATIC AIR BLEEDER FOR HYDRAULICAL CONNECTION Russian patent published in 2011 - IPC F16K24/04 F16K31/18 F16K31/126 

FIELD: machine building.

SUBSTANCE: automatic air bleeder consists of case 1 of air bleeder with inlet 2, outlet 3 branches and flow channel. In the flow channel there is installed a relief valve equipped with a unilateral spring pneumatic actuating mechanism and control valve 12 with a cylinder slide and float 13. The pneumatic actuating mechanism is made in form of a cylinder 7 with rod 6. Cylinder 7 is installed in a flow part of a case of the air bleeder connecting a working cavity of the cylinder via control valve 12 alternately with float chamber 31 and with outlet branch 3 of case 1 of the air bleeder. Cavity 10 of piston cylinder 7 is constantly connected with atmosphere on side opposite to piston 6. Control valve 12 with cylinder slide and float 13 are installed in case 11 of the control valve communicated with case 1 of the air bleeder.

EFFECT: raised responsiveness of automatic air bleeder in range of low pressure of working medium.

7 cl, 5 dwg