Aerial turboshaft engine and starting method in extremely cold environment

• Main Authors: LI HAITAO, ZHENG HENGBIN, ZOU LI, WANG TAIMING, HUA JIWEI, CHENG FANGYOU, LU YU
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• 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 an aviation turboshaft engine used in an extremely cold environment, and belongs to the technical field of aviation engines. The aviation turboshaft engine comprises a turbine, a combustion chamber, a turbine reducer and a lubricating oil heating assembly; the turbine comprises a gas turbine guider, a gas turbine rotor, a power turbine guider, a power turbine rotor and a central transmission shaft; the combustion chamber combusts to generate high-temperature gas to drive the turbine to rotate; the turbine reducer comprises a lubricating oil tank and a gear set arranged in the lubricating oil tank, an input shaft of the turbine reducer is in transmission connection with the central transmission shaft, and the output end of the turbine reducer is connected with an aircraft transmission system; the lubricating oil heating assembly comprises a heating pipeline and a one-way valve arranged on the heating pipeline, the input end of the heating pipeline is connected with the combustion chambe