HYDROMECHANIC TRANSMISSION Russian patent published in 2015 - IPC F16H47/08 F16H3/44 

FIELD: transport.

SUBSTANCE: automatic transmission implementing nine forward gears and one reverse gear contains casing (19), input link (20), output link (21), hydrodynamic torque converter and planetary reduction gear. The planetary reduction gear consists of four planetary gear sets. The first planetary gear set consists of a central gear (3), carrier (2) for satellites and a crown gear (1). The second planetary gear set consists of a central gear (6), carrier (5) for satellites and a crown gear (4). The third planetary gear set consists of a central gear (9), carrier (8) for satellites and a crown gear (7). The fourth planetary gear set consists of a central gear (12), carrier (11) for satellites and a crown gear (10). Input link (20) is connected with output link of hydrodynamic torque converter (22), with sun gear (3) of the first planetary gear set and with sun gear (12) of the fourth planetary gear set. Output link (21) is connected with crown gear (7) of the third planetary gear set. Crown gear (1) of the first planetary gear set is connected with carrier (5) of the second planetary gear set. Brake (13) connects carrier of the first set (2) with transmission case (19). Brake (14) connects sun gear (6) with transmission case (19). Brake (15) connects the interconnected carrier (8) of the third planetary gear set and crown gear (10) of the fourth planetary gear set. Clutch (16) connects sun gear (12) of the fourth planetary gear set connected with sun gear (3) of the first planetary gear set and with input link (20) with crown gear (10) of the fourth planetary gear set connected with carrier (8) of the third planetary gear set. Clutch (17) connects carrier (11) of the fourth planetary gear set with interconnected crown gear (7) of the third planetary gear set and output link (21). Clutch (18) connects the sun gear (3) of the first planetary gear set with interconnected crown gear (4) of the second planetary gear set and sun gear (9) of the third planetary gear set.

EFFECT: more gears in transmission.

1 dwg