Double-wall flexible inner flow channel structure and aero-engine with same

• Main Authors: LI HONGLEI, LIU MEI, GUO DELIANG, YUAN CHANG, ZHUO WENJING, LIU YUNLONG, DONG YUE
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2024
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINE PLANTS IN GENERAL; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

The invention provides a double-wall flexible inner flow channel structure. The double-wall flexible inner flow channel structure comprises an inner flow channel; the front supporting ring comprises an upper mounting edge, a lower mounting edge and a flexible supporting ring which extends between the upper mounting edge and the lower mounting edge in an inverted S shape; the heat insulation plate is arranged between the inner runner and the front supporting ring; a connecting rivet penetrates through the inner flow channel and the front end of the heat insulation plate to be fixedly connected with the front supporting ring, and a connecting rivet penetrates through the inner flow channel and the rear end of the heat insulation plate, so that a double-layer heat insulation wall face is formed between the turbine force bearing casing inner ring and the main flow channel. An inner runner notch and a heat insulation plate notch are formed in the inner runner and the heat insulation plate in the circumferential di