US 9,810,302 B2
Torque converter clutch with reduced back pressure
Daniel Sayre, Copley, OH (US); and Matthew Smith, Wooster, OH (US)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Filed on Jun. 26, 2015, as Appl. No. 14/751,219.
Claims priority of provisional application 62/025,143, filed on Jul. 16, 2014.
Prior Publication US 2016/0017971 A1, Jan. 21, 2016
Int. Cl. F16H 45/02 (2006.01)
CPC F16H 45/02 (2013.01) [F16H 2045/021 (2013.01); F16H 2045/0221 (2013.01); F16H 2045/0294 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A torque converter comprising:
an axis of rotation;
a first seal at a first radial distance relative to the axis of rotation;
a second seal at a second radial distance relative to the axis of rotation;
an impeller shell and a balancing plate defining at least a portion of a first hydraulic chamber;
a piston plate sealed via the first seal to the balancing plate defining at least a portion of a second hydraulic chamber;
a cover sealed to the piston plate via the second seal defining at least a portion of a third hydraulic chamber; and,
the first radial distance is same or equal to the second radial distance.