ROTARY MACHINE

A centrifugal compressor includes an impeller (40) fixed to a rotary shaft (30), and a casing accommodating the impeller (40). The impeller (40) includes a disc-shaped disc portion (41), a plurality of blade portions (42) provided to be separated from one another in a circumferential direction, and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SATO Takashi, NAGAI Naoyuki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS PISTONS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A centrifugal compressor includes an impeller (40) fixed to a rotary shaft (30), and a casing accommodating the impeller (40). The impeller (40) includes a disc-shaped disc portion (41), a plurality of blade portions (42) provided to be separated from one another in a circumferential direction, and a cover portion (43) facing the disc portion (41) with a gap interposed therebetween and covering the plurality of blade portions (42) from one of two sieds in the axial direction. The casing includes a perforated face (60A), which faces the cover portion (43) with a gap interposed therebetween, is provided at an inner peripheral side area in relation to an outer peripheral side end (43c) of the cover portion (43), and is provided with a plurality of holes (61).