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Serpentine belt (foreground) and dual vee belt (background) on a bus engine Belt tensioner providing pressure against the back of a serpentine belt in an automobile engine. A serpentine belt (or drive belt [1]) is a single, continuous belt used to drive multiple peripheral devices in an automotive engine, such as an alternator, power steering pump, water pump, air conditioning compressor, air ...
The mechanical belt drive, using a pulley machine, was first mentioned in the text of the Dictionary of Local Expressions by the Han Dynasty philosopher, poet, and politician Yang Xiong (53–18 BC) in 15 BC, used for a quilling machine that wound silk fibres onto bobbins for weavers' shuttles. [1]
A single belt (serpentine belt) accessory drive was introduced on the L05, the 5.0L L03, and the 4.3L V6 LB4 engines used in the 1988 GMT400 models, but not on the older R/V models (R/V models received the serpentine belt drive in 1989 when the front grille was facelifted in appearance to the GMT400 lineup).
Flat belt on a belt pulley Belt and pulley system Cone pulley driven from above by a line shaft. A belt and pulley system is characterized by two or more pulleys in common to a belt. This allows for mechanical power, torque, and speed to be transmitted across axles. If the pulleys are of differing diameters, a mechanical advantage is realized.
A timing belt is typically made from rubber, although some belts are instead made from polyurethane or neoprene. [8] [9] The structure of the belt is reinforced with corded fibres (acting as tension members) [10] and the toothed surface is reinforced with a fabric covering. [11] Rubber degrades with higher temperatures, and with contact with ...
A long serpentine belt at the front drives the coolant pump and both inlet cams. At the rear, each inlet cam drives its exhaust cam by a short link belt. The single front belt is tensioned by a spring-loaded tensioner pulley incorporating a hydraulic damping element, but the two link belts do not incorporate any tensioning device.
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