CALIBRATION DEVICE OF FORCE-MEASURING MACHINE FOR TEST BENCH OF SMALL-SIZE GAS TURBINE ENGINES Russian patent published in 2024 - IPC G01M15/14 G01L5/13 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to aircraft engineering, in particular, to calibration devices used for calibration of force-measuring systems of test benches of small-size gas turbine engines (SGTE). Calibration device comprises bellows-type force-setting device (1), adjusting unit (2), transmitting force from bellows (1) pressure through metal ball (3) to setting sensor (4), force-measuring sensor (5), beam (6) (rigid structure of U-type), transmitting force through movable frame (7) of force-measuring machine to force-measuring sensor (5), which is installed on fixed frame (8) of force-measuring machine, adjusting unit (11) located between movable frame (7) and force-measuring sensor (5), nozzle (10), through which air is supplied from the bench system to bellows-type force-setting device (1), weighing converters (9) with digital indicators and polished element (12) of movable frame (7).

EFFECT: higher accuracy of SGTE thrust measurement during its testing, simplified calibration procedure of the force-measuring machine.

5 cl, 1 dwg