JPS6136103U

JPS6136103U - variable capacity radial turbine

Info

Publication number: JPS6136103U
Application number: JP12060584U
Authority: JP
Inventors: 健山根
Original assignee: 日産自動車株式会社
Priority date: 1984-08-07
Filing date: 1984-08-07
Publication date: 1986-03-06

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 the drawing]

第１図Ａは従来の可変容量ラジアルタービンの構成の一
例を示す模型図、第１図Ｂは第１図ＡのＡ−Ａ線断面で
示す構成図、第２図はその可変容量ラジアルタービンに
おいて舌状部材が回動軸の振れによりずれた状態を示す
説明図、第３図はその舌状部材の枢軸部の周りの隙間か
らガス流が漏洩する状態を示す説明図、第４図Ａは本考
案可変容量ラジアルタービンにおける舌状部材とその周
辺部の断面図、第４図Ｂはその舌状部材回動軸の軸受部
材の断面を含む舌状部材の平面図、第５図Ａ及びＢは本
考案の他の実施例を示し、前実施例の夫々に対応する図
、第６図は本考案可変容量ラジアルタービンにおいて、
舌状部材が回動軸の振れによりずれた状態を示す説明図
である。１・・・タービンロータ、ＩＡ・・・ロータ軸、２・・
・タービンハウジング、２Ａ・・・周壁部、３・・・タ
ービンスクロール、３Ａ・・・流入口、３Ｂ・・・流路
、３Ｃ・・・流路、４・・・舌部、４Ａ・・・枢軸部、
５・・・回動軸、５Ａ・・・軸心、６・・・ノズル開口
部、６Ａ・・・ノズル入口部、７・・・アクチュエータ
、８・・・リンク部材、９・・・センタハウジング、１
０・・・ベアリング、１１・・・リングシール、１２・
・・シュラウド板、１３・・・ボルト、１４・・・プッ
シュ、２４・・・軸受プッシュ、２４Ａ・・・支承部。FIG. 1A is a schematic diagram showing an example of the configuration of a conventional variable displacement radial turbine, FIG. 1B is a configuration diagram taken along the line A-A in FIG. 1A, and FIG. An explanatory diagram showing a state in which the tongue member is displaced due to vibration of the rotation axis, FIG. 3 is an explanatory diagram showing a state in which gas flow leaks from a gap around the pivot portion of the tongue member, and FIG. A sectional view of the tongue member and its surrounding area in the variable displacement radial turbine of the present invention, FIG. 4B is a plan view of the tongue member including a cross section of the bearing member of the rotation shaft of the tongue member, and FIGS. 5A and B. 6 shows another embodiment of the present invention, and FIG. 6 is a diagram corresponding to each of the previous embodiments.
FIG. 6 is an explanatory diagram showing a state in which the tongue-like member is displaced due to vibration of the rotation shaft. 1... Turbine rotor, IA... Rotor shaft, 2...
- Turbine housing, 2A... Peripheral wall portion, 3... Turbine scroll, 3A... Inlet, 3B... Channel, 3C... Channel, 4... Tongue, 4A... axis,
5... Rotation axis, 5A... Axial center, 6... Nozzle opening, 6A... Nozzle inlet, 7... Actuator, 8... Link member, 9... Center housing ,1
0...Bearing, 11...Ring seal, 12.
...Shroud plate, 13...Bolt, 14...Push, 24...Bearing push, 24A...Support part.

Claims

[Scope of utility model registration request]

A swingable tongue member is provided at the beginning of the scroll winding of the turbine housing, and the tongue member is swung by rotating a rotating shaft attached concentrically to a pivot that forms the center of swing of the tongue member. In the variable capacity radial turbine in which the flow rate of gas flowing into the scroll can be changed by moving the scroll, a part of the bearing member that pivotally supports the rotating shaft on the turbine housing is moved along the outer periphery of the pivot portion. A variable displacement radial turbine, characterized in that the variable displacement radial turbine is extended to form an extended bearing part, and the extended bearing part forms a support part in which the outer peripheral part can be slidably contacted.