Novel integrated high-strength bearing cavity oil supply and heat insulation structure

• Main Authors: SU ZHUANG, LENG ZIHAO, ZHENG KAI, CAO MAOGUO, ZHANG JIEYI, LI GUOQUAN, CHENG RONGHUI, GUO SONG
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• 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 belongs to the technical field of aero-engines, and particularly relates to a novel integrated high-strength bearing cavity oil supply and heat insulation structure, through an integrated rear cover assembly structure, an oil supply pipe assembly and a skin heat insulation assembly structure are integrated, the assembly work of a rotor and a stator can be completed under the visual condition, and meanwhile through the design of a jackscrew hole structure, the assembly efficiency is improved. The disassembly work of the rear cover assembly can be very conveniently completed, structures such as a sealing device are prevented from being damaged, and the assembly and disassembly reliability of the bearing cavity oil supply and heat insulation structure is greatly improved; through the inner skin structure with the reinforcing ribs, the skin heat insulation assembly structure is optimized, under the condition of high pressure difference, the outer skin stress and the skin heat insulation assembly def