| Patent application number | Description | Published |
|---|
| 20080220927 | Automatic transmission with dry clutches, multi-purpose actuators, or damper - An automatic transmission including a first number of dry clutches; a second number of brakes; a third number of actuators; and transfer elements. The transfer elements are connected to respective clutches and brakes by respective uninterruptible mechanical paths. The actuators are arranged to displace respective transfer elements to operate the dry clutches and brakes. The third number is less than a sum of the first and second numbers. The transmission can include an input to a drive unit; a gear set; a damper connecting the drive unit and gear set; and an uninterrupted torque path between the drive unit and gear set. The transmission can include: a fluid chamber; dry portions; a six speed gear set at least partly in the chamber; three shafts at least partially disposed in the chamber; and three sealing elements forming a fluid-tight seal among the shafts, chamber, and dry portions. | 09-11-2008 |
| 20090055027 | Water pump disconnect clutch - A water pump disconnect clutch including: a first race having first and second portions with first and second diameters, respectively; a second race having at least one ramp; at least one rolling element disposed radially between the first and second races; and an engagement means for axially displacing the at least one rolling element. In response to an increase in temperature for the pump above a specified level, the engagement means is for axially displacing the at least one rolling element from a first position, in which the first and second races are rotationally independent, to a second position to rotationally lock the first and second races. In response to a decrease in temperature for the pump below the specified level, the engagement means is for axially displacing the at least one rolling element from the second position to the first position. | 02-26-2009 |
| 20090071787 | Latching frictional engagement assembly using a check valve - A frictional engagement assembly for an automotive device, including: at least one frictionally engageable plate; a first piston plate displaceable in a first axial direction to urge the at least one frictionally engageable plate into frictional contact; a first resilient element engaged with the first piston plate and urging the first piston plate in a second axial direction substantially opposite the first axial direction; a check valve controlling fluid flow to displace the first piston plate; and an accumulator. As fluid from a chamber, at least partially formed by the first piston plate, discharges through the check valve, the accumulator controls fluid volume in the chamber to maintain a distal portion of the first piston plate, urging the at least one frictionally engageable plate into frictional contact, in a furthest position in the first axial direction. | 03-19-2009 |
| 20090260943 | Clutch unit - A clutch unit with a clutch hub mounted non-rotatably on a shaft. The clutch unit includes at least two clutch elements that can be brought into frictional engagement with one another for torque transmission when the clutch unit is actuated by a mechanical actuation device with the help of cable-pull. The mechanical actuation device is attached to and held on the clutch unit. | 10-22-2009 |
| 20100075794 | TRANSMISSION ACTUATION SYSTEM - A transmission system without dynamic seals, specifically, an actuator for a vehicle transmission including a first rotating clutch pack engageable with a planetary gearset a first non-rotating actuator piston for engaging the clutch pack and a first bearing for isolating a first rotation of the clutch pack from the piston. A transmission system is provided using an electromechanical system for shifting the clutches, allowing a smaller pump only for lubrication of the transmission and the torque converter flow. | 03-25-2010 |
| 20100095661 | DRIVE SYSTEM AND METHOD FOR RECOVERING WASTE ENERGY FROM A VEHICLE - A drive system, including a torque converter with a housing arranged for connection to a combustion engine for a vehicle; and an air-operated motor, connected to the housing, for providing torque to the housing for the torque converter; or an air compressor, connected to the housing, for using torque from the housing to compress air. In one embodiment, the system includes a compressed air accumulator for providing compressed air to the air-operated motor; and a heat exchanger for transferring heat energy to compressed air provided to the air-operated motor from the accumulator. A drive system, including a combustion engine with a crankshaft; a plurality of pistons and cylinders for combusting fuel; and a cylinder and piston, the piston connected to the crankshaft. The system also includes a compressed gas accumulator for supplying compressed gas to the cylinder to operate the first piston to provide torque to the crankshaft. | 04-22-2010 |
| 20110150670 | TRANSMISSION PUMP WITH ONE-WAY CLUTCH FUNCTION AND METHOD OF ASSEMBLING PUMP HUB FOR A TORQUE CONVERTER TO A TRANSMISSION PUMP - A pump for a transmission, including: a housing with a pneumatic port; and a gear for engaging with a pump hub for a torque converter, wherein the pneumatic port is for introducing compressed air into the housing to restrict rotation of the gear. In an example embodiment, restricting rotation of the gear is to prevent rotation of the gear when the gear is interfaced with the pump hub to rotationally lock the gear with the pump hub. A pump for a transmission, including: a housing; a gear for engaging with a pump hub for a torque converter; and, an element for enabling rotation of the gear in a first rotational direction and locking the gear with respect to rotation in a second rotational direction, opposite the first rotational direction. In an example embodiment the element includes a one-way clutch. | 06-23-2011 |
| 20110214958 | FLUID COUPLING LAUNCH DEVICE - A launch device for a vehicle transmission including a housing, an impeller, a turbine, and first and second clutches with first and second pistons, respectively. The first and second pistons are sealingly engaged with one another. The first clutch releaseably engages the impeller with the housing and the second clutch releaseably engages the turbine with the housing. In an example embodiment, the first clutch is disposed radially outside of the second clutch. In an example embodiment, the first clutch is engaged by a first pressure, and the second clutch is engaged by a second pressure greater than the first pressure. | 09-08-2011 |
