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  • Now here we have an I.C engine of a vehicle which has to drive the following auxilliaries:

    1. water pump
    2. air conditioner compressor
    3. alternator
    4. cooling fan.

    Now all these machines have to be connected to the crankshaft by a single belt.

    now considering that we have all the data such as the speed-torque characteristic curves of the engine as well as the torque required to drive every auxilliary mentioned above, now what would be the procedure to design the belt connecting them all.

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  • Ramani Aswath

    Member • Apr 1, 2014

    Such a belt is called a serpentine belt. The problem is that if the belt breaks all accessories stop. So these belts have to be designed stronger and have various tension controls. They are more expensive.

    Some more info from belt manufacturers:
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  • Sarathkumar Chandrasekaran

    Member • Apr 1, 2014

    The crankshaft output can be connected to a intermediate pulley which drives all other accessories.The intermediate pulley shaft should be fitted to a shaft which has more pulleys to drive all other accessories respectively.
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  • zaveri

    Member • Apr 2, 2014

    What about the design formulas ?
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  • Ramani Aswath

    Member • Apr 2, 2014

    There are proprietory free software from some belt manufacturers to help in design.
    Quote:
    Design Multi-Point and Complex Serpentine Belt Drives

    Save time and money using Gates Design IQâ„¢ software for creating your multi-point and complex serpentine belt drives. It lets you design for stock and non-stock lengths and pulley sizes, and allows for an almost unlimited amount of sprockets and conditions. Start with a specific Gates product and enter your drive specifications.
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