F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/126
F16H 57/10 (2006.01) F16H 3/44 (2006.01) F16H 3/62 (2006.01)
Patent
CA 2029932
ABSTRACT A variable transmission having an input shaft 11 with an input sun gear 11G mounted thereon and a differential gear carrier 13 rotatably mounted thereon to enable independent rotation about input shaft 11 is disclosed. A transmission shaft 16 is coaxially mounted on input shaft 11. Differential gear carrier 17 is rotatably mounted on shaft 16. A plurality of pins 20A interlinks carriers 13 and 17 to enable simultaneous rotation. A first differential gear 21 is rotatably mounted on each pin 20, and each gear 21 is meshed with input sun gear 11G. A control ring gear 18 is rotatably mounted on shaft 16 with gear 18 meshed with each gear 21. A plurality of rods 24A with each rod 24 rotatably securing each carrier 13 and 17 to enable rotation about its axis and to enable simultaneous rotation of carriers 13 and 17. An output shaft 14 terminating in an output ring gear 15 is rotatably mounted relative to input shaft. A second differential gear 22 is rotatably mounted on each rod 24 and is meshed with gear 21 and output ring gear 15. A planetary gear 23 is mounted on each rod 24, and each gear 23 is meshed with sun gear 16G of shaft 16. A first brake means 19 applies rotational resistance to control ring gear 18 such that when control ring gear is frictionally engaged, the rotation of control ring gear 18 decreases whereby torque is applied to output ring gear 15 to initiate and maintain rotation of output ring gear 15 and upon further frictional engagement which stops rotation of control ring 18, the rotational speed of output ring gear 15 further increases. An overdrive section is also disclosed.
Lim Joon-Young
Ra Jong-Oh
Hae Sung Engineering Co. Ltd.
Ridout & Maybee Llp
LandOfFree
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