초록 ▼

A centrifugal compressor capable of rotating at high speed by means of an electric motor comprises two compression stages cantilevered one at each end of a shaft, an electric motor of which the rotor is carried by a central part of the shaft, magnetic bearings, and a magnetic stop. The motor, the be

A centrifugal compressor capable of rotating at high speed by means of an electric motor comprises two compression stages cantilevered one at each end of a shaft, an electric motor of which the rotor is carried by a central part of the shaft, magnetic bearings, and a magnetic stop. The motor, the bearings and the stop are placed in a housing placed under a partial vacuum. Two facial gaskets adjustable as a result of longitudinal displacement of a component and of the shaft seal the compressor and ensure sealing of the space within the housing.

대표청구항 ▼

A centrifugal compressor capable of rotating at high speed, comprising (a) a single shaft carrying at least two compressor wheels cantilevered on its two ends for setting in motion fluid to be compressed; (b) a high-speed electric motor comprising a rotor carried by said shaft and located in a centr

A centrifugal compressor capable of rotating at high speed, comprising (a) a single shaft carrying at least two compressor wheels cantilevered on its two ends for setting in motion fluid to be compressed; (b) a high-speed electric motor comprising a rotor carried by said shaft and located in a central portion of said shaft; (c) at least two magnetic bearings for supporting said shaft; (d) a magnetic stop for adjusting the axial position of said shaft; (e) a housing surrounding at least said electric motor, said magnetic bearings and said magnetic stop; (f) at least one first facial sealing means located at one of said compressor wheels and adjustable as a result of axial displacement of said shaft by means of said magnetic stop; (g) at least one second facial sealing means located at the second compressor wheel and adjustable as a result of a controlled longitudinal displacement of a supporting component; and (h) circuit means for placing the space within said housing under a predetermined partial vacuum.