TURBOMACHINERY DEVICE FOR BOTH COMPRESSION AND EXPANSION

摘要

A turbomachinery device operable in either a compressor mode or a turbine mode. The device includes an impeller that rotates in the same direction in both modes, and the general flow direction remains the same in both modes. An inlet flow-guiding device may be included to direct fluid into the impeller. The impeller is coupled to a motor/generator, which operates as a motor to add power to the impeller in the compressor mode, and as a generator in the turbine mode to extract mechanical power from the impeller and convert it into electrical power. An outlet flow-guiding device may also be included. The inlet and outlet flow-guiding devices can be inlet and outlet guide vanes that are variable in setting angle or are extendable and retractable into and out of the flow path, or can be other types of flow-guiding devices.