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Description Of A Automatic Transmission Video

The Basic Parts of an Automatic Transmission (Part 1)

Description Of A Automatic Transmission - sorry, that

From Wikipedia, the free encyclopedia. Look up automatic , automagic , or automatically in Wiktionary, the free dictionary. Automatic may refer to: Contents. Disambiguation page providing links to topics that could be referred to by the same search term. Categories : Disambiguation pages. Hidden categories: Disambiguation pages with short descriptions Short description is different from Wikidata All article disambiguation pages All disambiguation pages. Description Of A Automatic Transmission

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A friction drive or friction engine is a type of transmission that utilises two wheels in the transmission to transfer power to the driving wheels rather than a chain and sprockets system. This kind of transmission is often used on scooters , mainly go-peds, in place of a chain. The problem with this type of drive system is they are not very efficient, since the output wheel leather covered wheel has width, the area of contact is spread across various radii on the primary disc. Because the tangential velocity varies as radius varies, the system must overcome velocity differentials across the surface. The compromise is slippage of the leather to metal contact area which creates friction, which in turn converts much of the energy transfer of this system into heat. Heat generation also requires a cooling system to keep the transmission working effectively. Friction drive has been most successfully used in low-power applications, such as driving phonograph turntables. The Turicum's friction drive consisted of a flat steel disk coupled directly to the engine.

The first actual dual-clutch transmissions were derived from Porsche in-house development for the Porsche in the s.

In simple terms, a DSG automates two separate "manual" gearboxes and clutches contained within one housing and working as one unit. At the time of launch in[2] [5] it became the world's first automated dual-clutch transmission in a series-production car, [2] [5] in the German-market Volkswagen Golf Mk4 R32[2] [5] and shortly afterwards worldwide, in the original Audi TT 3. For the first few years of production, this original DSG transmission was only available in transversely oriented [2] front-enginefront-wheel-drive and Haldex Traction -based four-wheel-drive vehicle layouts.

It is manufactured at Volkswagen Group's Kassel plant, [2] with a daily production output of 1, units. It differs from the six-speed DSG, in that it uses two single-plate dry clutches of similar diameter.

In latean all-new seven-speed longitudinal [6] [13] S tronic [13] version of the DSG transaxle went into series production Volkswagen Group internal code: DL, parts code prefix: 0B5. Like the original six-speed DSG, it features a concentric dual wet multi-plate clutch.

This was initially available in their quattro all-wheel-drive variants, [7] and is very similar to the new ZF Friedrichshafen -supplied [16] Porsche Doppel-Kupplung PDK. Just like the DQ, the two multi-plate clutches are bathed in oil, though the lubricant reaches a lower level and has reduced viscosity, which improves efficiency. DQ project is deprecated at last. The internal combustion engine drives two clutch packs.

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The inner clutch pack drives Automatjc 2, 4, and 6. Due to space constraints, the two clutch assemblies are concentricand the shafts within the gearbox are hollow and also concentric. The direct-shift gearbox uses a floor-mounted transmission shift leververy similar to that of a conventional automatic transmission.]