US 9,810,304 B2
Two pass multi-function torque converter
Patrick M. Lindemann, Wooster, OH (US); and Matthew Payne, Glenmont, OH (US)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Filed on May 31, 2016, as Appl. No. 15/168,796.
Application 15/168,796 is a division of application No. 14/334,309, filed on Jul. 17, 2014, granted, now 9,394,981.
Claims priority of provisional application 61/856,282, filed on Jul. 19, 2013.
Prior Publication US 2016/0273636 A1, Sep. 22, 2016
Int. Cl. F16H 45/02 (2006.01); F16H 41/24 (2006.01); F16H 45/00 (2006.01)
CPC F16H 45/02 (2013.01) [F16H 41/24 (2013.01); F16H 2045/002 (2013.01); F16H 2045/0205 (2013.01); F16H 2045/0215 (2013.01); F16H 2045/0221 (2013.01); F16H 2045/0257 (2013.01); F16H 2045/0263 (2013.01); F16H 2045/0278 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A multi-function torque converter, comprising:
a cover arranged to receive torque;
an impeller including an impeller shell and at least one impeller blade connected to the impeller shell;
a turbine including a turbine shell and at least one turbine blade connected to the turbine shell;
a torus at least partially enclosed by the impeller and turbine shells;
a first pressure chamber at least partially formed by the impeller shell and the cover;
an impeller clutch including a portion of the impeller shell; and,
a resilient element assembly located in the first pressure chamber, the resilient element assembly includes at least one groove and radially inward flow of fluid out of the first pressure chamber is at least partly through the at least one groove;
wherein:
pressure in the torus is arranged to displace the impeller shell in a first direction to substantially non-rotatably connect the portion of the impeller shell to the cover for a closed mode for the impeller clutch; and,
the resilient element assembly urges, with a first force, the impeller shell in a second direction opposite the first direction.