FIELD: engines and pumps.
SUBSTANCE: proposed method comprises testing, measuring pressure difference P at inlet and outlet of pump 1, fluid temperature T at pump inlet and outlet, forcing preset amount of working fluid via bypass line 4 provided with controller restrictor 5 and communicating pump inlet and outlet. In all tests one pressure difference created by pump 1 and one number of pumping cycles are used. Time of pumping preset number of cycles is used as diagnostics parameters.
EFFECT: comprehensive results of diagnostics.
1 dwg
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