JPS6295196U

JPS6295196U -

Info

Publication number: JPS6295196U
Application number: JP18816785U
Authority: JP
Priority date: 1985-12-05
Filing date: 1985-12-05
Publication date: 1987-06-17

Description

[Brief explanation of the drawing]

第１図はこの考案のターボ圧縮機の一実施例を
示す要部の縦断面図、第２図は上記圧縮機の吸込
風量と断熱ヘツドとの関係を示すグラフ、第３図
は第２実施例を示す要部の縦断面図、第４図は従
来例を示す縦断面図、第５図は従来例での吸込風
量と断熱ヘツドとの関係を示すグラフである。３…インペラー、７…シユラウド、８…吸込室
、１１…ラビリンス、１２，２２…第１ラビリン
ス、１３，２３…第２ラビリンス。 Fig. 1 is a vertical cross-sectional view of the main parts of an embodiment of the turbo compressor of this invention, Fig. 2 is a graph showing the relationship between the suction air volume of the compressor and the adiabatic head, and Fig. 3 is the second embodiment. FIG. 4 is a vertical cross-sectional view of the main part showing an example, FIG. 4 is a vertical cross-sectional view showing a conventional example, and FIG. 5 is a graph showing the relationship between the intake air volume and the heat insulating head in the conventional example. 3... Impeller, 7... Shroud, 8... Suction chamber, 11... Labyrinth, 12, 22... First labyrinth, 13, 23... Second labyrinth.

Claims

[Scope of utility model registration request]

In a turbo compressor in which a labyrinth 11 is disposed around the impeller 3 to prevent leakage of compressed fluid to the suction side 8, the labyrinth 11 is arranged around the outer shroud 7 of the impeller 3.
The first labyrinths 12, 22 are arranged opposite to each other on the outer circumferential surface at the suction side 8 end portion, and the second labyrinths 13, 2 are arranged opposite to each other on the inner circumferential surface thereof.
3. A turbo compressor characterized by comprising: