1. Limited Slip Differentials (LSDs)
By: Timothy Kwan

2. Objective Explain what a limited slip differential (LDS) is
Types of LSDs and how they work

3. What is an LSD? Prevent wheel slippage
Distributes torque to wheel that isn’t slipping
LSDs lock or slow down rotation of one output axel

4. Types of LSDs
3 Main Types:
Clutch
Viscous Coupling
Torsen®

5. Clutch Type LSD Locks up using clutches Gear shaft From driveshaft
Pressure plate
Clutch plates
To right wheel
To left wheel

6. Clutch LSD con’t Vehicle stationary Pressure plate Vehicle turning
Clutch disk (not shown)
Straight line driving

7. Viscous Coupling LSD Locks up due to friction between fluid and plates
To right wheel
Viscous coupling
To left wheel
From driveshaft

8. Viscous Coupling con’t
From driveshaft
Viscous coupling unit
Differential
Stationary plates
fluid
Rotating plates (attached to shaft)

9. Torsen® LSD Locks up using gears Worm gear From driveshaft
To left wheel
Worm wheel
To right wheel

10. Torsen® LSD con’t

11. References: http://www.billzilla.org/diffs.htm