AUTOMATIC CONTINUOUSLY VARIABLE GEAR BOX Russian patent published in 2009 - IPC F16H15/50 

FIELD: machine building.

SUBSTANCE: automatic continuously variable gear box contains planetary friction variator and mechanism of variation of gear ratio and pressure made in form of pivot arm (17) with pushers (23) installed so as to travel in guiding cuts (24) of disk (25) connected to low speed driven shaft (26). Guiding cuts (24) are made in form of two notches in disk (25) and have the form of spiral segments situated on both sides of their maximum radius of distance from the variator axis. Notches converge in the point of their maximum radius of distance from the variator axis.

EFFECT: invention facilitates reversed rotating of output low-speed shaft and also maintains automatism and reliability of operation of gear.

4 cl, 3 dwg