JPS60134834U

JPS60134834U - Turbo gear

Info

Publication number: JPS60134834U
Application number: JP2180784U
Authority: JP
Inventors: 寛高田
Original assignee: イ−グル工業株式会社
Priority date: 1984-02-20
Filing date: 1984-02-20
Publication date: 1985-09-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来のターボチャージャーの一例を示す断面図
、第２図は本考案の一実施例に係るターボチャージャの
構造説明図、第３図Ａ、　Ｂは軸受面の端面図、第４図
Ａ、　Ｂは異なる実施例に係る軸受面の端面図、第４図
Ｃは同図ＢにおけるＣ−Ｃ線断面図である。２１・・・ケーシング、２２・・・ラジアル軸受、２３
．２４・・・スラスト軸受、２５・・・室、２６・−・
シャフト、２７・・・タービン、２８．３１・・・吸気
孔、２９．３２・・・排気孔、３０・・・コンプレッサ
、３３・・・通気孔、３４・・・溝、３５．３６・・・
軸受面、３７゜３Ｂ、３９，４２．．４３・・・スパイ
ラル溝、４０゜４１・・・ニードル弁、４４，４５・・
・レイレーステップ。FIG. 1 is a sectional view showing an example of a conventional turbocharger, FIG. 2 is a structural explanatory diagram of a turbocharger according to an embodiment of the present invention, FIGS. 3A and B are end views of the bearing surface, and FIG. 4 A and B are end views of bearing surfaces according to different embodiments, and FIG. 4C is a sectional view taken along the line CC in FIG. 4B. 21...Casing, 22...Radial bearing, 23
．． 24... Thrust bearing, 25... Chamber, 26...
Shaft, 27...Turbine, 28.31...Intake hole, 29.32...Exhaust hole, 30...Compressor, 33...Vent hole, 34...Groove, 35.36...・
Bearing surface, 37° 3B, 39, 42. ．． 43... Spiral groove, 40° 41... Needle valve, 44, 45...
・Reilly step.

Claims

[Scope of utility model registration request]

Spiral dynamic pressure bearings or Rayleigh step dynamic pressure bearings are used in the radial bearing part and thrust bearing part for the shaft integrally provided with the impeller of the turbine, so that the shaft is supported by a non-contact gas interlayer. A turbocharger characterized by the following configuration.