compressor

Abstract

This compressor is equipped with: a rotating shaft; an impeller which compresses a supplied fluid and is attached to the rotating shaft; a turbine attached to the rotating shaft; a first channel-forming member for forming a first channel which guides some of the fluid compressed by the impeller into the turbine; and a second channel-forming member for forming a second channel which guides fluid into the fluid intake port of the impeller after said fluid has acted on the turbine.

Claims

1. A compressor that compresses a fluid using the driving force of an electric motor, The rotating shaft driven by the aforementioned electric motor, An impeller attached to the rotating shaft for compressing the supplied fluid, A turbine attached to the aforementioned rotating shaft, A first channel forming member that forms a first channel that guides a portion of the fluid compressed by the impeller to the turbine, A compressor comprising: a second flow path forming member that forms a second flow path that guides the fluid, after it has been actuated by the turbine, to the fluid intake port of the impeller.

2. The compressor according to claim 1, wherein the electric motor is located in the second flow path.

3. A valve provided in the first flow path forming member for adjusting the flow rate of the fluid flowing in the first flow path, A temperature acquisition unit that acquires the motor temperature of the electric motor, The system further comprises a valve control unit that controls the valve based on the acquired motor temperature, The compressor according to claim 2, wherein the valve control unit controls the valve such that when the motor temperature is high, the flow rate of the fluid flowing through the first flow path is greater than when the motor temperature is low.

4. The device further includes a third channel forming member that forms a third channel for guiding the fluid supplied from the outside to the fluid intake port of the impeller, The electric motor is placed in the third flow path, The compressor according to claim 1, wherein the downstream end of the second flow path is connected to a position in the third flow path between the electric motor and the fluid intake port.

Images