AIR VENTILATION SYSTEM FOR HINGES OF EQUAL ANGULAR SPEEDS Russian patent published in 2019 - IPC F16H57/04 F16K7/17 F16D3/84 

FIELD: ventilation.

SUBSTANCE: air ventilation system for hinge (20) of equal angular speeds, comprising inner shell (24), outer shell (22), separator (26), multiple elements (28) transmitting torque, drive sleeve, drive nut and dust collar assembly. Outer cartridge comprises wall (90) with ventilation opening (88, 242) with first and second channels (244, 246) extending in axial direction. Radially extending wall connects the second axially extending channel as a whole with the first channel passing in axial direction. Valve (256) having thrust part (264), disk part (258) and venting part (260) is at least partially installed inside the vent hole. Ventilation part (260) also comprises ring (292) passing in axial direction, which ends with radially passing wall. At least part (300) of edge of radial wall of ventilation part of valve is in direct contact with at least part (250) of external surface of wall of outer shell.

EFFECT: enabling higher reliability.

15 cl, 18 dwg