ENGINE TEST CASING FOR GAS TURBINE ENGINE ON TEST BENCH AND GAS TURBINE ENGINE TEST METHOD Russian patent published in 2019 - IPC G01M15/14 F01D25/28 F01D21/00 

FIELD: internal combustion engines.

SUBSTANCE: test engine casing for gas turbine engine intended for replacement of flight casing of gas turbine engine during testing of gas turbine engine on test bench includes wall, silicone layer, as well as round or arc-shaped flange on each upstream and downstream end of wall. Wall is made of composite material with organic matrix and has outer surface for gas turbine engine annular flow separation and inner surface. Silicone layer covers the inner surface of the wall and insulates the inner surface of the wall thermally. Each flange contains the first round or arched part, which follows the internal surface of the wall, and the second round or arc-shaped part, which extends the wall to one level with external surface of the wall so that to direct the annular flow of the gas-turbine engine. Silicone layer along the axis extends from the first round or arched part of the upstream flange to the first round or arc-shaped part of the downstream flange. During testing of gas turbine engine on test bench there installed is the above casing of tested engine on gas turbine engine, gas turbine engine is attached to test bench, after which gas turbine engine is tested on test bench.

EFFECT: group of inventions allows avoiding damages of flight casing and engine elements caused by temperature conditions during ground tests.

16 cl, 4 dwg