A transmission is a mechanical device invented by Louis Renault which uses a gear set—two or more gears working together—to change the speed, direction of rotation, or torque multiplication or reducti
Transmission internals for a 2009 Volkswagen Golf
Transmission for a Bristol Sycamore helicopter
16-speed tractor transmission (plus 8 reverse gears)
Mazda M5OD manual transmission (viewed from the engine side)
Fluid coupling
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A fluid coupling or hydraulic coupling is a hydrodynamic or 'hydrokinetic' device used to transmit rotating mechanical power. It has been used in automobile transmissions as an alternative to a mechan
Daimler car fluid flywheel of the 1930s
Fluid coupling on Transfluid's industrial transmission model KPTO