| 摘要 |
A torque proportioning differential is disclosed for use in a vehicle which enables distribution of torque to each drive wheel to match traction conditions at each wheel so that maximum available tractive effort to drive the vehicle is obtained. This is accomplished by the use of bevel gears for the pinions and side gears of either the straight, Zerol (Registered Trademark) or spiral type. These gears are formed so that the face cone apex does not coincide with the generated pitch cone apex. This construction produces a tooth contact between the pinions and side gears which travels from one end of the teeth to the other through each tooth mesh cycle. This contact condition accomplishes the torque proportioning. Also shown is modification of the face angles of the pinions and side gears to increase capacity of the device and to strengthen the ends of the teeth of the gears. This modification produces compound face structures a portion of which is defined by a cone having an apex which coincides with the generated pitch cone apex and another portion which is defined by a cone having an apex which does not coincide with the generated pitch cone apex. The disclosure also relates to the construction of the bevel gears.
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