DISK PLANETARY VARIATOR Russian patent published in 2009 - IPC F16H15/50 

FIELD: machine building.

SUBSTANCE: disk planetary variator contains body (10) wherein planetary row is installed; said planetary row includes central exterior (9) and interior (6) friction disks from both ends enveloping intermediate friction disks (7), secured of axes (20), designed to travel in carrier (25) and pressed to intermediate disks (7) with hold-down devices. Rolling races on the central friction disks contacting with the surface of intermediate disks (7) are made convex toroidal. Contact zones of resilient members (8) of axial action with circular stops (3) are situated on their peripheral circular part. Circular stops (3) are designed to travel in axial direction in body (10). In the variator there is facilitated optimal pressing of friction disks one to another, also there are avoided edge contacts at disks warps and there is reduced wear of contact zones of friction disks with one another and with circular stops.

EFFECT: invention increases efficiency and service life of variator.

8 cl, 7 dwg