JPS6331224U

JPS6331224U -

Info

Publication number: JPS6331224U
Application number: JP12404286U
Authority: JP
Priority date: 1986-08-14
Filing date: 1986-08-14
Publication date: 1988-02-29

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るバリアブルノ
ズル付きターボチヤージヤの部分断面図、第２図
は第１図の部分拡大断面図、第３図は第１図の装
置のカバーと回動リングとブツシユの位置関係を
示した断面図、第４図は第１図の装置のカバーの
斜視図、第５図は第１図の装置の駆動装置からバ
リアブルノズルにかけての斜視図、第６図は第１
図の装置における排気ガス温度とクリアランスと
の関係を示した関係図、である。１……タービンハウジング、２……センタハウ
ジング、３……コンプレツサハウジング、５……
バツクプレート、６……バリアブルノズル、８…
…ブツシユ、１０……ノズル用リンク、１１……
回動リング、１１ａ……回動リングの外周面、１
１ｂ……回動リングの内周面、２０……カバー、
２０ａ……カバーの内周面、７１……ガス通路、
Ｃ_１，Ｃ_２……クリアランス。 Fig. 1 is a partial sectional view of a turbocharger with a variable nozzle according to an embodiment of the present invention, Fig. 2 is a partially enlarged sectional view of Fig. 1, and Fig. 3 shows the cover and rotating ring of the device shown in Fig. 4 is a perspective view of the cover of the device in FIG. 1, FIG. 5 is a perspective view of the device in FIG. 1 from the drive device to the variable nozzle, and FIG. 6 is a sectional view showing the positional relationship of the bushes. 1
FIG. 3 is a relationship diagram showing the relationship between exhaust gas temperature and clearance in the device shown in the figure. 1... Turbine housing, 2... Center housing, 3... Compressor housing, 5...
Back plate, 6... Variable nozzle, 8...
...Button, 10...Nozzle link, 11...
Rotating ring, 11a...Outer peripheral surface of rotating ring, 1
1b...Inner circumferential surface of rotating ring, 20...Cover,
20a... Inner peripheral surface of the cover, 71... Gas passage,
C ₁ , C ₂ ... Clearance.

Claims

[Scope of utility model registration request]

A rotatable variable nozzle is provided in the turbine side gas passage, and the shaft of the variable nozzle is rotated via a nozzle link mechanism having a nozzle link and a rotation ring that engages with the nozzle link. In the turbocharger, the rotating ring is rotatably held by an inner peripheral surface of a cover surrounding the nozzle link mechanism and a bush located inside the rotating ring and supporting the variable nozzle, and the rotating ring at room temperature is A turbocharger with a variable nozzle, characterized in that a clearance between an inner circumferential surface of the ring and the bush is larger than a clearance between an outer circumferential surface of the rotating ring and an inner circumferential surface of the cover.