Patent ID: 11885710
Assignee: PRATT & WHITNEY CANADA CORP.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  G | IPC G

Claim 0:
1. A flow measuring system for one or more oil nozzles of a lubrication system of an aircraft engine, comprising:
an external supply of a testing liquid;
a pump fluidly connecting the external supply of the testing liquid to an inlet of the lubrication system via a first conduit, the inlet to the lubrication system disposed upstream of the one or more oil nozzles;
a second conduit fluidly connecting an outlet of the lubrication system to the external supply of the testing liquid, the outlet of the lubrication system disposed downstream of the one or more oil nozzles;
a flow measuring device operable to measure a flow resistance through the one or more oil nozzles; and
a calibration circuit fluidly having one or more calibration nozzles correspond to the one or more oil nozzles of the lubrication system, wherein the flow measuring device is further operable to measure a baseline flow resistance through the one or more calibration nozzles.