HYDRAULIC COUPLING Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: coupling has drive and driven coupling members, the driven coupling member embraces the drive one and has a symmetrically shaped inner surface and projections on the inner surface. The coupling also has a cavity between the coupling members. The projection has an inner surface which radius is equal to the radius of the drive coupling member. The inner surface of the driven coupling member is made with different radiuses of curvature. Spring-loaded vanes are mounted in the drive coupling member, and channels in the form of radially blind slots which communicate with the cavity are made in the driven coupling member. An axially movable control member in the form of a plate with a longitudinal trapezoidal slot which walls are engageable with vane links is mounted on the drive coupling member. EFFECT: improved structure. 4 cl, 5 dwg