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differential gear |
Also found in: Dictionary/thesaurus, Medical, Financial, Wikipedia, Hutchinson | 0.01 sec. |
differential gearIn automotive mechanics, a gear arrangement that transmits power from the engine to a pair of driving wheels, dividing the force equally between them but permitting them to follow paths of different lengths, as when turning a corner or traversing an uneven road. On a straight road the wheels rotate at the same speed; when turning a corner the outside wheel has farther to go and would turn faster than the inner wheel if unrestrained. The automobile differential was invented in 1827; originally used on steam-driven vehicles, it was well known when internal-combustion engines finally appeared. |
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It also has quick-stroke hydraulic cylinders with externally mounted differential gears for fast mold open and closing. The team also tested and rejected more complex and costly improvements, such as shock absorbers and differential gears. Instead of a planetary gear, the Estima Hybrid uses a CVT (continuously variable transmission) in a compact front transaxle to transmit main motor energy, and adds a rear transaxle which combines a second motor and differential gear in a single unit, for a lightweight, compact structure that enables 4-wheel drive without a driveshaft. |
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differential gear
