| 摘要 |
In a limited slip differential including a differential gear train mainly composed of differential pinions (11) and side gears (12) incorporated in a differential case, said side gears (12) being connected to opposite end portions of axle shafts (16, 17) by spline, and pinion shafts (15) fixed to said differential case for rotatably supporting said differential pinions (11), the improvement comprises friction clutches (18) provided between opposite surfaces of said differential case and said side gears (12), said side gears (12) being slidable in an axial direction of said axle shafts (16, 17) a cylinder portion (19) provided at said pinion shafts (15) and positioned between said side gears (12), a pair of pistons (20) provided in said cylinder portion (19) and adapted to be slided in an axial direction of said axle shafts (16, 17), said pistons (20) being inwardly biased by a biasing means (26), a chamber (24) defined between said pistons (20) and an fluid passage (42) communicated with said chamber (24) for supplying an operating fluid from a fluid source in a fluid circuit to said chamber (24), wherein when said operating fluid is supplied to said chamber, said side gears (12) are outwardly moved through said pistons (20) to change a friction torque of said friction clutches (18). |
