JPS6137404U

JPS6137404U - Exhaust supercharger with variable vane

Info

Publication number: JPS6137404U
Application number: JP12139584U
Authority: JP
Inventors: 祥二佐々木
Original assignee: トヨタ自動車株式会社
Priority date: 1984-08-09
Filing date: 1984-08-09
Publication date: 1986-03-08
Also published as: JPH0227121Y2

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例を示す断面図、第２図は第
１図■一■より見た可変ノズルベーンの図、第３図は本
考案の第２実施例を示す断面図、第４図は可変ベーンを
備えた従来の排気過給機の断面図、第５図は第４図の線
■一■断面図である。１”３・・・タービンハウジング、１７・・・タービン
口′ 一タ、１７ａ・・・タービンロータ軸、２２・・
・環状流路、２２ａ，２２ｂ・・・対向壁、２４・・・
ノズルベーン、２５・・・支軸、Ａ・・・平行幅の環状
領域、Ｂ，・・・テーパ状の環状領域、Ｒ・・・所定半
径、Ｗ・・・平行幅。FIG. 1 is a sectional view showing the first embodiment of the present invention, FIG. 2 is a diagram of the variable nozzle vane seen from FIG. FIG. 4 is a sectional view of a conventional exhaust supercharger equipped with variable vanes, and FIG. 5 is a sectional view taken along line 1--2 in FIG. 1"3...Turbine housing, 17...Turbine port' 1, 17a...Turbine rotor shaft, 22...
- Annular channel, 22a, 22b... opposing wall, 24...
Nozzle vane, 25... Support shaft, A... Annular region with parallel width, B... Tapered annular region, R... Predetermined radius, W... Parallel width.

Claims

[Claims for Utility Model Registration] 1. An annular flow path 22 is formed around the outer periphery of the turbine rotor 17, and the annular flow path 22 has an axis 2 parallel to the axis of the turbine rotor.
A large number of variable nozzle vanes 24 rotatable around the variable nozzle vanes 5 are provided, and exhaust gas is caused to flow toward the turbine rotor from the annular flow path provided with these variable nozzle vanes,
In a variable vane exhaust supercharger in which the turbine rotor is rotated by the pressure of exhaust gas, opposing walls 22a and 22b forming the annular flow path 22 are variable about the axis 17a of the turbine rotor 17. An annular region A in the vicinity of a predetermined radius R to the axis 25 of the nozzle vane 24 has a predetermined parallel width W perpendicular to the nozzle vane axis, and abrasive regions B on the inner and outer diameter sides of the annular region with the parallel width,
Let C be a region having a width larger than the predetermined parallel width,
In the most closed position of the nozzle vane, the nozzle vane is located only in the region A of the predetermined parallel width, and in the most open position of the nozzle vane, the nozzle vane is located across the regions B and C on the inner diameter side and the outer diameter side. Features an exhaust supercharger with variable vanes. 2. The supercharger according to claim 1, wherein the annular regions on the inner diameter side and the outer diameter side have a tapered shape whose width gradually increases toward the inner diameter and the outer diameter, respectively.