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Limited Slip Differentials (LSDs)
By: Timothy Kwan
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Objective Explain what a limited slip differential (LDS) is
Types of LSDs and how they work
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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
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Types of LSDs 3 Main Types: Clutch Viscous Coupling Torsen®
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Clutch Type LSD Locks up using clutches Gear shaft From driveshaft
Pressure plate Clutch plates To right wheel To left wheel
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Clutch LSD con’t Vehicle stationary Pressure plate Vehicle turning
Clutch disk (not shown) Straight line driving
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Viscous Coupling LSD Locks up due to friction between fluid and plates
To right wheel Viscous coupling To left wheel From driveshaft
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Viscous Coupling con’t
From driveshaft Viscous coupling unit Differential Stationary plates fluid Rotating plates (attached to shaft)
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Torsen® LSD Locks up using gears Worm gear From driveshaft
To left wheel Worm wheel To right wheel
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Torsen® LSD con’t
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References: http://www.billzilla.org/diffs.htm
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