Two speed transmission and belt drive system
View Patent ↗A two speed transmission comprising a planetary gear train comprising an input member connected to an input carrier, the input carrier connected to an input shaft, a sun gear and a ring gear, the input carrier comprising a plurality of planetary members each in meshing engagement with the sun gear and the ring gear, the sun gear connected to a brake member, the ring gear connected to an output member, and a one-way clutch operably disposed between the input shaft and the output member.
1. A two speed transmission comprising:
a planetary gear train comprising an input member connected to an input carrier, the input carrier connected to an input shaft, the input shaft is radially inward of the input member;
a sun gear and a ring gear;
the input carrier comprising a plurality of planetary members each in meshing engagement with the sun gear and the ring gear;
the sun gear connected to a brake member;
the ring gear connected to an output member comprising a pulley; and
a one-way clutch engaged between the input shaft and the output member.
2. The two speed transmission as in claim 1 , wherein the input member comprises a pulley.
3. The two speed transmission as in claim 1 , wherein the planetary gear train is substantially disposed within an output member width.
4. The two speed transmission as in claim 2 , wherein the brake member is substantially disposed within an input member width.
5. The two speed transmission as in claim 1 , wherein the output member further comprises means for direct connection to an accessory.
6. The two speed transmission as in claim 1 , wherein the input member and the output member are coaxial.
7. The two speed transmission as in claim 1 wherein the brake is electromagnetic.
8. The two speed transmission as in claim 1 further comprising:
a bearing disposed between the brake and the input shaft; and
a bearing disposed between the sun gear and the input shaft.