This project studies the thermal performance optimization of vehicle-mounted air-cooled oil-free scroll air compressor. Scroll compressors have difficulty in dissipating heat during the compression process and are unable to work uninterrupted for a long time. They are a technical bottleneck in automotive applications.

The project plans to solve the problem of excessive gas temperature rise caused by insufficient heat dissipation of the scroll air compressor, which will increase the shaft work of the system, high temperature will affect the auxiliary bearings, thermal and mechanical coupling will affect the accuracy of the scroll profile, reduce the reliability of the system, and cause the system to be huge.

By studying the heat transfer characteristics of scroll air compressors, the problem of runaway temperature rise during compression is reduced from the source and process, the compression process of air-cooled oil-free scroll air compressors is biased towards isothermal compression, and the compression efficiency of the system is improved; By studying the deformation problem of the scroll line tooth shape under the temperature field, the deformation problem under thermal and mechanical coupling at high temperatures is solved, the extra frictional heat is reduced, and the deformation area that is greatly affected by thermal and mechanical coupling is corrected with reference to the free gap profile correction method of scroll compressor. Improve system reliability. For the implementation of this project, we will obtain independent intellectual property rights and apply for one invention patent and one utility model patent.

The methods and measures proposed in this project to solve the temperature rise of the air compressor reduce the gas temperature and terminal exhaust temperature during the compression process of the scroll air compressor, reduce the specific power of the air compressor, save energy and reduce emissions, and improve system reliability and increase market appeal. Since the technical bottleneck of scroll air compressor temperature rise is solved, it is conducive to the miniaturization of the system, helps promote the application of air-cooled oilless scroll compressors in the field of rail transportation, automotive fuel cells and other vehicle-mounted fields, and promotes industrial upgrading.