STEPLESS TRANSMISSION Russian patent published in 2010 - IPC F16H47/04 

FIELD: transport engineering.

SUBSTANCE: stepless transmission consists of driving (1) and output (2) shafts and of case (3) wherein following is arranged: planetary gear (4), mechanism of gear ratio regulation, of rotation rate limiting, of parking braking and of rotation direction switch of output shaft of transmission turning on adjustable reverse hydro-pump (12) coupled with regulated hydraulic motor (19). Planetary gear (4) contains sun (5) and crown (6) gears kinematically tied by means of pairs (7) of coaxially connected satellites (8) and (9) of different diametres. Each pair (7) with its one satellite (8) engages crown gear (6), while with another satellite (9) it engages sun gear (5) and is secured so, as to provide rotation with common axle (10) in carrier (11). Also planetary gear (4) is coupled with its driving link of sun gear (5) to driving shaft (1), with carrier (11) it is joined to output shaft (2) and with its crown gear (6) it is fastened to block (13) of hydraulic pump (12).

EFFECT: simplified steering, fabrication, and repair, also reduced weight, dimensions and cost of transmission.

11 cl, 4 dwg