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A limited-slip differential (LSD) is a type of differential gear train that allows its two output shafts to rotate at different speeds but limits the maximum difference between the two shafts. Limited-slip differentials are often known by the generic trademark Positraction , a brand name owned by General Motors and originally used for its ...
Torsen differential from an Audi quattro. Torsen Torque-Sensing (full name Torsen traction) is a type of limited-slip differential used in automobiles. It was invented by American Vernon Gleasman [1] and manufactured by the Gleason Corporation. Torsen is a portmanteau of Torque-Sensing.
It linked the front and rear differentials for quiet and smooth transfer of power to the axle with the greatest traction, on wet or dry pavement. [ 4 ] Viscous couplings are used as the center differential in cars such as the Toyota Celica GT-Four , and also as a limited slip differential (LSD) in rear axles.
Gear oil is a lubricant made specifically for transmissions, transfer cases, and differentials in automobiles, trucks, and other machinery.It has high viscosity and usually contains organosulfur compounds.
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Several classes of friction modifier additives exist, the main examples being organic friction modifiers (OFMs), oil-soluble organo-molybdenum additives, functionalized polymers, and dispersed nanoparticles. [1] OFMs are amphiphilic surfactants, such as fatty acids, often derived from fats and vegetable oils.
Limited-slip differential: General Motors: Marketing term for clutch-type limited-slip differentials on vehicles sold by General Motors' Chevrolet division; now commonly used to refer to any limited-slip differential, regardless of automaker or type. [182] Post-it: Sticky note: 3M
The choice of additives is determined by the use, e.g. the oil for a diesel engine with direct injection in a pickup truck (API Service CJ-4) has different additives than the oil used in a small gasoline-powered outboard motor on a boat (2-cycle engine oil).