US 11,852,200 B2
Power take-off with bell housing cooling system
Rodney R Laisure, Cherry /alley, IL (US); George Patrick Gill, Rockton, IL (US); and Gary R. Haasch, Rockton, IL (US)
Assigned to Warner Electric Technology LLC, Braintree, MA (US)
Filed by Warner Electric Technology LLC, Braintree, MA (US)
Filed on Feb. 4, 2022, as Appl. No. 17/592,955.
Prior Publication US 2023/0250854 A1, Aug. 10, 2023
Int. Cl. F16D 13/72 (2006.01); F04D 29/38 (2006.01); F04D 29/54 (2006.01); F16D 13/64 (2006.01); F16D 27/14 (2006.01); F16D 55/00 (2006.01); F16D 65/847 (2006.01); F16D 67/06 (2006.01); F16D 121/20 (2012.01)
CPC F16D 13/72 (2013.01) [F04D 29/38 (2013.01); F04D 29/541 (2013.01); F16D 13/64 (2013.01); F16D 27/14 (2013.01); F16D 55/00 (2013.01); F16D 65/847 (2013.01); F16D 67/06 (2013.01); F16D 2121/20 (2013.01); F16D 2300/0212 (2013.01); F16D 2300/26 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A power take-off, comprising:
a bell housing disposed about an axis and configured for coupling to a housing of a driving device at a first axial end and to a housing of a driven device at a second axial end, the bell housing defining an air inlet port and an air outlet port between the first and second axial ends;
a clutch disposed within the bell housing and configured to transfer torque from an input member coupled to the driving device to an output member coupled to the driven device; and,
a fan configured for rotation with the input member to draw air into the bell housing through the air inlet port, move air through the bell housing from the air inlet port to the air outlet port in a substantially radial direction across the clutch and exhaust air from the bell housing through the air outlet port
wherein the fan comprises a plurality of blades formed in or attached to a drive ring of a shaft coupling, the drive ring configured for coupling to the input member for rotation therewith.