MAGNA POWERTRAIN USA, INC.
|MAGNA POWERTRAIN USA, INC. Patent applications|
|Patent application number||Title||Published|
|20100076655||INPUT TORQUE LIMITING CLUTCH FOR POWER TRANSFER ASSEMBLY - A vehicle driveline component that includes an input member, at least one output member and a preloaded clutch that is disposed between the input member and the at least one output member. The preloaded clutch limits drive torque transmitted form the input member to each output member. The driveline component is selected from a group consisting of transfer cases, propshafts, viscous couplings and differentials. A related method is also provided.||03-25-2010|
|20100051407||Hydraulic Coupling - A torque transfer coupling includes first and second rotary members. A transfer clutch operatively connects the first and second rotary members. A piston, disposed in a piston chamber, is actuable to engage the transfer clutch. A hydraulic pump in fluid communication with a sump containing hydraulic fluid has a first pump member fixed for rotation with the first rotary member and a second pump member fixed for rotation with the second rotary member such that relative rotation between the first and the second pump members generates a fluid pumping action. A first flow path supplies hydraulic fluid from the hydraulic pump to the piston chamber. A second flow path supplies hydraulic fluid from the piston chamber to a control valve for regulating the pressure of the hydraulic fluid supplied to the piston chamber. The second flow path includes an aperture extending through the second pump member.||03-04-2010|
|20100044181||Torque Coupling With Disconnectable Fluid Pump - A pump system that pressurizes a fluid includes a shaft, a first rotor and a second rotor that is selectively driven by the shaft. Relative rotation between the first rotor and the second rotor generates variable sized pockets therebetween to pressurize the fluid. A clutch regulates a degree of coupling of the rotor to the shaft between a decoupled state and a coupled state to regulate the relative rotation between the first and second rotors.||02-25-2010|
|20090314110||Power Transfer Units Having Torque Limiting Clutches - A power transfer unit is provided with a torque limiting assembly that limits the torque transferred to driveline components when torque peaks occur. The power transfer unit can include, a first shaft, a second output shaft receiving drive torque, a second output shaft, and a torque transfer mechanism. The torque transfer mechanism includes a coupling member and a biasing member. The coupling member is located between a driving member and a driven member and provides selective engagement therebetween when in an engaged position. The driving member and/or the driven member includes a recess therein receiving a portion of the coupling member when in the engaged position. The biasing member urges the coupling member and the driving member and/or driven member into the engaged position.||12-24-2009|
|20090258751||HYDRAULIC COUPLING WITH DISCONNECT PUMP CLUTCH - A power transfer assembly for use in a motor vehicle and having a hydraulic coupling operable to transfer drive torque to a driveline in response to slip. The hydraulic coupling includes a transfer clutch, a clutch operator for engaging the transfer clutch, a fluid actuation system including a fluid pump for controlling movement of the clutch operator, and a magnetorheological pump clutch capable of selectively shifting the fluid pump between operative and inoperative states.||10-15-2009|
|20090236197||Two-Speed Transfer Case With Ballramp Clutch Actuator - A transfer case is provided with a range unit, an interaxle differential, a clutch assembly and a power-operated actuation mechanism. The range unit includes a planetary gearset driven by an input shaft, and a synchronized dog clutch assembly for releasably coupling one of the input shaft or an output component of the planetary gearset to an input member of the interaxle differential. The interaxle differential further includes a first output member driving a first output shaft, a second output member operably driving a second output shaft. The clutch assembly is a multi-plate friction clutch operably disposed between the first and second output shafts. The power-operated actuation mechanism includes a range actuator assembly, a clutch actuator assembly and a motor assembly operable to control coordinated actuation of the range actuator assembly and the clutch actuator assembly.||09-24-2009|
|20090211869||Power Transmission Device With Friction Clutch And Power-Operated Clutch Actuator - A torque transfer mechanism is provided for controlling the magnitude of a clutch engagement force exerted on a multi-plate clutch assembly that is operably disposed between a first rotary and a second rotary member. The torque transfer mechanism includes a power-operated face gear clutch actuator for generating and applying a clutch engagement force on the clutch assembly.||08-27-2009|
|20090082934||Power Transfer Assembly With Torque Sensors And Torque Control System - A transfer case for a motor vehicle having an input shaft, a first output shaft, a second output shaft, a clutch, a transfer mechanism, a sensor portion and a magnetoelastic torque sensor. The clutch has a clutch pack and a thrust mechanism that is configured to exert an engagement force on the clutch pack. The clutch pack has a first portion, which is rotatably driven by either or both of the input shaft and the first output shaft, and a second portion that is supported for rotation relative to the first portion. The transfer mechanism couples the second portion of the clutch pack to the second output shaft. The sensor portion is coupled to the first or second output shaft and is at least partially formed of a magnetoelastic material. The magnetoelastic torque sensor is disposed about and radially in-line with the sensor portion.||03-26-2009|
|20090062071||TORQUE TRANSFER CONTROL SYSTEM FOR POWER TRANSMISSION DEVICE IN A MOTOR VEHICLE - A torque transfer mechanism includes a multi-plate clutch assembly that is operably disposed between a first rotary and a second rotary member. A control system determines a desired quantity of torque to deliver to the second rotary member and controls the clutch to produce the desired torque.||03-05-2009|
|20090050433||POWER TRANSFER DEVICE WITH TORQUE LIMITED PUMP - A lube pump is provided for supplying lubricant to various components of a power transmission unit of the type used in motor vehicles. The lube pump includes a pump assembly and a coupling mechanism for releaseably coupling the pump assembly to a driven shaft. The coupling is operable to release the pump assembly when the rotary speed of the shaft exceeds a threshold value.||02-26-2009|
|20080298994||POWER TRANSFER ASSEMBLY WITH HIGH EFFICIENCY PUMP - A pump assembly includes a pump housing, a stator ring supported within the pump housing, and a pump ring also rotatably supported within the pump housing. The pump ring interfaces with the stator ring to define a plurality of variable volume pressure chambers. A cover plate covers the stator ring and pumping ring within the pump housing. The cover plate is axially displaceable relative to the pump housing and defines a wall of each of the pressure chambers. Pressure within the pressure chambers induces linear movement of the cover plate away from the stator ring and the pump ring.||12-04-2008|
|20080234091||Transfer Case with Overdrive Mode - A transfer case includes an input shaft and first and second output shafts. An overdrive unit is driven at an increased speed relative to the input shaft. A clutch is operable in a first position to establish a drive connection between the input shaft and the first output shaft. The clutch is further operable in a second position to establish a drive connection between the overdrive unit and the first output shaft. An actuator is driven by a motor for moving the clutch between its first and second positions. The actuator includes an axially movable fixed disk fixed for rotation with an output member of the overdrive unit. The shift engages an axially movable sleeve of the clutch.||09-25-2008|
Patent applications by MAGNA POWERTRAIN USA, INC.