Invention and Engineering
Hydrolock (a shorthand notation for hydrostatic lock or hydraulic lock) is an abnormal condition of any device which is designed to compress a gas by mechanically restraining it caused by a liquid entering the device. In the case of a reciprocating internal combustion engine, a piston cannot complete its travel and mechanical failure may occur if a volume of liquid greater than the volume of the cylinder at its minimum (end of the piston's stroke) enters the cylinder, due to the incompressibility of liquids.
Hayes, Hillingdon.
Electric power industry.
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