High-speed rotor bearing cavity with oil-gas separation device

• Main Authors: HONG JIE, WANG DONG, MA YANHONG, ZHENG WANFEI, CHEN XUEQI
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2023
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The invention discloses a high-speed rotor bearing cavity with an oil-gas separation device, the bearing cavity is divided into a front oil collection ring cavity and a rear oil collection ring cavity by taking a bearing and a turbine rear force-bearing frame radial plate as a boundary, and the invention provides the oil-gas separation device positioned at the outer edge of the bearing cavity. The oil-gas separation device internally comprises a graphite sealing ring installation base, an annular cavity oil-gas separator and a turbine rear force bearing frame. Under the driving effect generated by high-speed rotation of the rotor, an oil-gas mixture passes through the oil-gas separation device at a high speed, and separation of the oil-gas mixture is achieved due to different oil and gas densities. The bearing cavity is divided into the front oil collecting ring cavity and the rear oil collecting ring cavity, the flowing space of an oil-gas mixture is reduced, lubricating oil return is facilitated, the lubric