Patent application number | Description | Published |
20110278121 | DAMPER HUB FRICTION PACKAGE - A friction assembly for a torque converter, including: a side plate for a damper in the torque converter; a plate; an output hub for connection to an input shaft for a transmission; and a diaphragm spring. The side plate and the plate are fixedly connected to a turbine shell for the torque converter. The diaphragm spring is directly engaged with the output hub so that the diaphragm spring rotates with the output hub and is axially displaceable with respect to the output hub. The diaphragm spring is directly engaged with the side plate and the plate so that the diaphragm spring is axially restrained by the side plate. The plate and is rotatable with respect to the side plate and the plate. | 11-17-2011 |
20110315498 | TORQUE CONVERTER WITH IMPROVED TORQUE CONVERTER CLUTCH PERFORMANCE - A torque converter, including: a cover; a first through bore for receiving a transmission input shaft; a clutch including a piston plate; a plurality of fasteners connected to the cover; and a plate connected to the cover. The plate includes a radially aligned wall including a plurality of openings in which the plurality of fasteners is disposed; a second through bore at least partially aligned, in an axial direction, with the first through bore; and a plurality fins extending from the radially aligned wall in the axial direction. Each fin includes a first end aligned with the first and second through bores in the axial direction. Each fin includes a second end disposed radially within the plurality of openings. A space, aligned with an axis of rotation for the torque converter and the second through bore, is formed between the respective first ends. | 12-29-2011 |
20120073279 | RIVET FOR USE WITH ANGLED FIXTURE AND METHOD THEREOF - A method of connecting plates in a torque converter including: forming a head of a rivet with an end surface that is curved or forms multiple planes; forming a portion of an interior surface of the cover to protrude or indent with respect to a surrounding portion of the interior surface; disposing the body of the rivet in respective holes in respective portions of the plates; and displacing the plates such that the end surface of the rivet head contacts the portion of the interior surface, the respective portions of the first and second plates are at an acute angle with respect to the surrounding portion of the interior surface, and a longitudinal axis of the rivet is at an acute angle with respect to a line orthogonal to the surrounding portion of the interior surface. | 03-29-2012 |
20120073926 | PISTON SEAL WITH CENTERING WASHER - A torque converter, including: a piston plate for a lock-up clutch, the piston plate including a circumferential surface forming an opening axially aligned with an axis of rotation for the torque converter; a ring-shaped element fixedly secured to the piston plate; and a seal in compressive engagement with the circumferential surface, axially aligned with the ring-shaped element, and including a surface facing radially inward for forming a seal with an input shaft inserted into the torque converter. | 03-29-2012 |
20130161146 | TWO STAGE PISTON FOR FASTER CLUTCH APPLY - A clutch assembly, including: a secondary piston assembly; a primary piston including a portion located radially outward of the secondary piston assembly; a first chamber at least partially formed by a first side of the primary piston; a second chamber at least partially formed by the secondary piston assembly and a second side of the primary piston; and a check valve connecting the first and second chambers. For a first force applied by fluid in the first chamber: the primary piston remains axially stationary; the fluid flows from the first chamber into the second chamber; and the secondary piston assembly displaces in a first axial direction to contact a clutch pack. For an increase of the first force to a second force: fluid flow between the first and second chambers is blocked by the check valve; and the primary piston and the secondary piston assembly displace in the first axial direction to close the clutch pack. | 06-27-2013 |
20140178192 | STATOR HOUSING AND METHOD THEREOF - A method for fabricating a stator including positioning a cutting device, with a diameter equal to a desired pocket diameter, with respect to pockets in a side of a housing. Each pocket has an end wall with an indentation. The method axially displaces the device to remove material from side and end walls for the pockets to form desired diameters and lengths for the pockets, while leaving a portion of the respective indentation in place. The housing includes a plurality of blades. Each pocket is arranged to receive an engagement assembly for a one-way clutch. Each pocket includes a first opening facing in a second axial direction and a second opening in communication with the first opening and at least partially facing in a circumferential direction. The first side faces the second axial direction and the side walls are in communication with the first and second openings. | 06-26-2014 |
20140197002 | SYMMETRICAL STRUT FOR ROCKER ONE-WAY CLUTCH - A one-way clutch, including: an outer race including a pocket and a strut. The strut includes a body and a retention segment. The body is at least partially locatable in the pocket. The retention segment includes a neck portion and a spring retention portion. The neck portion is directly connected to the body and extends from the body in a first direction. The spring retention portion extends from the neck portion in the first direction and includes first and second segments extending in second and third opposite directions, orthogonal to the first direction, from the neck portion. | 07-17-2014 |
20140326566 | ONE-WAY CLUTCH WITH CONICAL STRUT - A one-way clutch, including: a housing including a top side and a plurality of indentations in the housing, each indentation including: a respective opening in a portion of the top side; a respective bottom wall opposite the respective opening in an axial direction parallel to an axis of rotation for the one-way clutch; and a respective side wall. The respective side wall: | 11-06-2014 |
20150021137 | TWO PASS MULTI-FUNCTION TORQUE CONVERTER - A torque converter, including: a cover; an impeller including an impeller blade, and an impeller shell with a first surface extending beyond the impeller blade in a radial direction and at an acute angle with respect to a first line in the radial direction; a turbine including a turbine blade, and a turbine shell with a second surface axially aligned with the first surface and at the acute angle with respect to the first line; a turbine clutch including the first and second surfaces and friction material disposed between the first and second surfaces; a torus at least partially enclosed by the impeller and turbine shells; and a pressure chamber at least partially formed by the turbine shell and the cover. For torque converter mode, the turbine and the impeller are independently rotatably with respect to each other. For lock-up mode, the first and second surfaces are non-rotatably connected. | 01-22-2015 |
20150068856 | METHOD OF CONTROLLING CLUTCHES IN A MULTI-FUNCTION TORQUE CONVERTER - A method of controlling a multi-function torque converter including a cover, an impeller shell, a turbine shell, a first pressure chamber at least partially formed by the turbine shell and the cover; a second pressure chamber at least partially formed by the impeller and turbine shells, and a third 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 turbine clutch including a portion of the turbine shell, the method including: pressurizing the first pressure chamber to substantially a first fluid pressure level or to a second fluid pressure level greater than the first level; pressurizing the second pressure chamber to a third fluid pressure level greater than the first and second levels; passively draining the third pressure chamber to be substantially at the first level; and connecting the impeller shell to the cover. | 03-12-2015 |
20150068857 | BEARING-LESS TORQUE CONVERTER - A torque converter, including: a cover; an impeller shell; a turbine shell; a turbine clutch formed by the turbine and impeller shells; and a stator formed of a single piece of material and including a protrusion extending in an axial direction and having a radial surface. In a drive mode : the cover transmits torque to the impeller shell; the turbine clutch is open; the radial surface forms an entirety of a portion of the stator closest, in the axial direction from the stator toward the turbine shell, to the turbine shell; and the radial surface is free of contact with the turbine shell. In a coast mode for the torque converter, at least a portion of the radial surface is in contact with the turbine shell or is separated from the turbine shell by a layer of fluid in contact with the radial surface and the turbine shell. | 03-12-2015 |