| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 192300330 | Fluid-pressure operator for engaging clutch | 13 |
| 20100072015 | MANUFACTURING METHOD OF CLUTCH FOR AUTOMATIC TRANSMISSION AND AUTOMATIC TRANSMISSION - In a clutch manufacturing method, inner peripheral portions of drum members, of two clutches are connected to a sleeve member, and a piston, a seal plate and a return spring are provided between the drum members, an insulator to apply electric isolation between the piston and the drum member or between the seal plate and another drum member is attached to either the piston or the seal plate. Then, the drum member, to which the electric isolation with the insulator is not applied, is connected to the sleeve member. Then, the piston, return sprig and seal plate are assembled to the sleeve member to which the drum member has been connected. Finally, the drum member, to which the electric isolation with the insulator has been applied, is connected to the sleeve member with electric welding. | 03-25-2010 |
| 20120175210 | HYDRAULIC CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION HAVING A MANUAL VALVE WITH A TWO GEAR DEFAULT STRATEGY - A hydraulic control system for a transmission includes a source of pressurized hydraulic fluid, a manual valve, and a default valve. A first set of solenoids are configured to selectively engage at least one of a plurality of shift actuators. The first set of solenoids is open when de-energized. A second set of solenoids is configured to selectively engage at least one of the plurality of actuators. The second set of solenoids is closed when de-energized. A low speed default gear is engaged when the first and second sets of solenoids are de-energized and the transmission is operating in a low speed gear ratio. A high speed default gear ratio is engaged when the first and second sets of solenoids are de-energized and the transmission is operating in a high speed gear ratio. | 07-12-2012 |
| 20080271966 | Using inferred torque converter impeller speed to control an impeller clutch - A method for controlling an impeller clutch of a torque converter includes determining a function relating a K-factor of the torque, determining a current engine torque, determining a desired impeller clutch slip, using the function determine the actual impeller speed and thus actual clutch slip, and adjusting the operating state of the impeller clutch to produce the desired impeller clutch slip. | 11-06-2008 |
| 20090014269 | Two pass multi-function torque converter - A multi-function torque converter including: an apply pressure chamber for a torque converter clutch; a first pressure chamber including a torus; and a resilient flow control element in fluid communication with the apply chamber and the first pressure chamber and arranged to control fluid flow to the apply pressure chamber. The resilient flow element is displaceable to block fluid flow to the apply pressure chamber in torque converter mode for the torque converter and to enable fluid flow to the apply chamber in lock-up mode. The torque converter includes a second pressure chamber and the clutch includes a piston plate at least partially bounding the apply pressure chamber and the second pressure chamber. | 01-15-2009 |
| 20110132710 | SHIFTABLE CLUTCH DEVICE, IN PARTICULAR WITH DISC-TYPE CONFIGURATION, DRIVE TRAIN FOR A HYBRID SYSTEM, AND VEHICLE - The invention relates to a shiftable clutch device ( | 06-09-2011 |
| 20080289926 | SEAL ASSEMBLY FOR REDUCING FLUID LOSS FROM TRANSMISSION PUMP - An improved seal assembly is provided that minimizes loss of transmission pump pressure by controlling fluid flow past a torque converter hub bushing to meet bushing lubrication requirements without unnecessarily diminishing pump pressure and while also minimizing frictional losses. The seal assembly includes a rigid carrier adapted to fit between a pump body member and the torque converter hub. An elastomeric lip extends from the rigid carrier. A contact layer is connected to the elastomeric lip and configured to sealingly contact the torque converter hub. The contact layer is integral with and harder than the elastomeric lip, therefore minimizing frictional losses. | 11-27-2008 |
| 20090101463 | Viscous Clutch - A viscous clutch assembly ( | 04-23-2009 |
| 20100163360 | Solenoid valve - A solenoid valve device that includes a solenoid valve; a drive circuit that drives the solenoid section; a current sensor that detects a current applied to the solenoid section; and a control unit that controls, when the solenoid valve is served as the pressure control valve, the drive circuit by performing a feedback control based on the current detected by the current sensor so that a current in accordance with an output pressure command is applied to the solenoid section, and controls, when the solenoid valve is served as the solenoid pump, the drive circuit without performing the feedback control so that a pump current is applied to the solenoid section. | 07-01-2010 |
| 20110011692 | DRIVE TRAIN, IN PARTICULAR A HYBRID DRIVE TRAIN - A drive train, in particular, a hybrid drive train with a torque converter, which can be operatively connected with a drive through a clutch. The clutch includes an emergency operation actuation device with at least one emergency operation actuation element, which defines a centrifugal oil cavity which includes oil and which is coupled with the drive. | 01-20-2011 |
| 20080277227 | Torque converter with anti-rattle and cooling flow arrangement - A torque converter including: a carrier for a torque converter clutch, the carrier rotationally connected to a turbine shell; an apply chamber for the clutch; and a first pressure chamber in fluid communication with a second pressure chamber and a torus. Pressure in the apply chamber is controlled independent of pressure in the first and second pressure chambers. A torque converter including: a turbine hub rotationally connected to a turbine shell and a cover plate for a damper assembly; and a clutch arranged to rotationally connect the turbine hub to a cover. A torque converter including: a first cover plate for a damper assembly, the first cover plate rotationally connected to a turbine hub and a torque converter clutch; and a second cover plate for a damper assembly, the second cover rotationally connected to the turbine hub and the torque converter clutch. | 11-13-2008 |
| 20080264746 | Latching Linear Actuator - A linear actuator, suitable for a clutch ( | 10-30-2008 |
| 20100282559 | HYDRODYNAMIC CLUTCH - The invention relates to a hydrodynamic clutch having constant or variable filling of work medium
| 11-11-2010 |
| 20120205213 | WET CLUTCH ARRANGEMENT - A wet clutch arrangement, particularly starting clutch for a vehicle, including a housing arrangement which is filled or fillable with fluid, a friction coupling region having a first friction surface formation rotating with the housing arrangement around an axis of rotation and a second friction surface formation that rotates with a driven element around the axis of rotation and which can be brought into frictional engagement with the first friction surface formation, a fluid coupling region with an impeller rotating with the housing arrangement around the axis of rotation and with a turbine that rotates with the driven element around the axis of rotation and which, along with the impeller, defines a toroidal fluid circulation space. The fluid coupling region is arranged radially outside the friction coupling region. | 08-16-2012 |
