摘要:
A center differential offering a full-time two axle dirve system. The center differential includes a planetary gear set defining a first drive path which provides an effective torque split ration to the front axle of the vehichle which is several percent less than the minimum dynamic weight ratio on the front axle assembly. The center differential further includes a bidirectional clutch mechanism defining a second drive path for connecting the driving input to the front drive axle assembly with a drive ratio several percent more than the rear axle ratio. The effective torque split and drive ratios are selected as a function of vehicle weight distributionand tire data for a specific vehicle so as to effect a controlled transfer of torque between the first and second drive paths and before the affected axle assembly reaches its traction limit in any mode of operation.
摘要:
A clutch for engaging a driving member with a driven member automatically upon application of torque to rotate the driving member in either direction, for maintaining engagement in either the drive or coast mode of operation and during the transition between drive and coast, for maintaining engagement in either forward or reverse operation and during the transition between forward and reverse, and for disengaging automatically upon interruption of the torque and slight rotation of the driving member in the opposite direction. The clutch includes a mechanism for developing high frictional drag upon initial rotation of the driving member to effect clutch engagement, and low frictional drag thereafter to conserve power.
摘要:
A clutch for engaging a driving member with a driven member automatically upon application of torque to rotate the driving member in either direction, for maintaining engagement in either the drive or coast mode of operation and during the transition between drive and coast, for maintaining engagement in either forward or reverse operation and during the transition between forward and reverse, and for disengaging automatically upon interruption of the torque and slight relative rotation of the members. The clutch includes a mechanism for developing high frictional drag upon initial rotation of the driving member to effect engagement, and low frictional drag thereafter to conserve power. The clutch also includes a preloading mechanism so that if engagement should be blocked, it will be completed automatically when the blockage is relieved. The clutch further includes a mechanism tending to resist initial rotation of the driving member so that a false torque signal does not cause engagement.
摘要:
An assembly for converting a vehicle between two-wheel and four-wheel drive. The assembly includes a bell form of a constant velocity joint being supported by a bearing mounted to one of the vehicle knuckle and the wheel hub. The bell form further includes a collar that has a connector, and a spindle of the wheel hub has a connector in close proximity to the bell form connector. A clutch ring actuated by an actuator is moved by the actuator between engagement with one of the connectors and engagement with both of the connectors.
摘要:
An anti-clash and anti-rattle brake for a multiple speed ratio transmission is engageable to apply a frictional braking force to the constantly meshed gears when a shift control device is in a free neutral position. The brake is spring biased toward engagement. It is disengaged by one cam device when the shift control device is moved from the free neutral position in one plane and by another cam device when the shift control device is moved from the free neutral position in another plane.
摘要:
A clutch for engaging a driving member with a driven member automatically upon application of torque to rotate the driving member in either direction, for maintaining engagement in either the drive or coast mode of operation and during the transition between drive and coast, for maintaining engagement in either forward or reverse operation and during the transition between forward and reverse, and for disengaging automatically upon interruption of the torque and slight rotation in the opposite direction.
摘要:
A power transfer mechanism incorporated in a multiple path drive system comprises a transfer case disposed between a source of input torque and a pair of drive axles. Torque is transferred directly to the fixed axle and is transferred automatically to the steering axle through a double-acting overrunning clutch when required. The clutch is biased to advance toward one engaged position, but is prevented from locking by a direction-sensitive latch so long as a normal overrunning condition is present.
摘要:
A power transfer mechanism incorporated in a multiple path drive system comprises a transfer case disposed between a source of input torque and a pair of drive axles. Torque is transferred directly to one drive axle and is transferred automatically to the other drive axle through a double-acting roller clutch when required. The transfer case is constructed such that it may be assembled in two configurations; one in which the output shafts are coaxial and offset from the input shaft, and the other in which the input shaft and one output shaft are coaxial, the other output shaft being offset therefrom.
摘要:
An anti-rattle system for a gear type transmission including a first part and a second part. One of the parts of the anti-rattle system includes a pair of deformable pressure discs with parallel facing flat surfaces. The flat surfaces of the pressure discs are in parallel planes that are perpendicular to an axis of rotation. The other part includes a friction disc with an outer periphery positioned between the parallel flat surfaces so that the pressure discs are deformed and spread apart by the friction disc. One of the parts is attached to a drive gear and another one of the parts is attached to a gear in mesh with the drive gear. Another one of the parts could also be attached to an anti-rattle assembly counter shaft.
摘要:
A four wheel drive transfer case having a three element planetary gear differential connected to the output shaft of a transmission and having two output shafts which are driven by the differential in a manner such that rotary motion of any one shaft effects rotary motion of the other shafts in a predetemined timed relationship. The transfer case further includes an electromagnetically actuated friction clutch assembly including a ball ramp mechanism and having frictionally engageable members for operably interconnecting two of the planetary gear components in a manner such that relative rotation between the two output shafts is modulated by a torque level established between the frictionally engageable members of the clutch.