US 11,852,227 B1
Clutch with apply chamber pressure release port
Edward Goodwill, Wooster, OH (US); Brian Zaugg, Millersburg, OH (US); Natalie Allen, Richfield, OH (US); and Alfredo Perez Mitre Jimenez, Wooster, OH (US)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Filed on Dec. 14, 2022, as Appl. No. 18/081,651.
Claims priority of provisional application 63/399,288, filed on Aug. 19, 2022.
Int. Cl. F16H 45/02 (2006.01); F16D 25/0638 (2006.01)
CPC F16H 45/02 (2013.01) [F16D 25/0638 (2013.01); F16H 2045/0284 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A K0 clutch, comprising:
a housing having an axial wall and a port extending radially outward from the axial wall;
a piston including a seal engaged with the axial wall, the piston being axially slidable relative to the axial wall; and
an apply chamber disposed between the piston and the housing, the apply chamber being selectively fluidly communicable with the port based on a pressure in the apply chamber;
wherein the port is arranged to permit fluid communication between the apply chamber and the port in response to the pressure in the apply chamber being greater than or equal to a threshold pressure;
wherein the piston is configured to close the K0 clutch when the pressure in the apply chamber is equal to a closing pressure, the closing pressure being less than the threshold pressure.