US 12,297,902 B1
Planetary gearbox
Joseph Johnson, Mooresville, NC (US); and Nicholas Hrusch, Wooster, OH (US)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Filed on May 30, 2024, as Appl. No. 18/678,032.
Int. Cl. F16H 57/08 (2006.01); F16H 1/28 (2006.01); F16H 57/029 (2012.01)
CPC F16H 57/082 (2013.01) [F16H 1/28 (2013.01); F16H 57/029 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A planetary gearbox, comprising:
a central axis;
a gearbox housing;
a sun gear arranged for receiving an input torque;
a ring gear rotationally fixed in the gearbox housing; and
a planetary assembly rotatable about the central axis and arranged to transmit an output torque, the planetary assembly comprising:
a planetary carrier, sealed to the gearbox housing;
a plurality of planetary shafts;
a plurality of planetary gears, each arranged on one of the plurality of planetary shafts and drivingly engaged with the sun gear and the ring gear; and
a vent arranged in the planetary carrier for equalizing pressure in the planetary gearbox and comprising a center disposed on the central axis.