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Drill problem Why do hydraulic systems overheat?

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Heating of hydraulic fluid in operation is caused by inefficiencies. Inefficiencies result in losses of input power, which are converted to heat. A hydraulic system's heat load is equal to the total power lost (PL) through inefficiencies and can be expressed as: PLtotal = PLpump + PLvalves + PLplumbing + PLactuators If the total input power lost to heat is greater than the heat dissipated, the hydraulic system will eventually overheat.

Posted on Aug 27, 2008

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Heating of hydraulic fluid in operation is caused by inefficiencies. Inefficiencies result in losses of input power, which are converted to heat. A hydraulic system's heat load is equal to the total power lost (PL) through inefficiencies and can be expressed as: PLtotal = PLpump + PLvalves + PLplumbing + PLactuators If the total input power lost to heat is greater than the heat dissipated, the hydraulic system will eventually overheat.

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