JPS6192724U

JPS6192724U -

Info

Publication number: JPS6192724U
Application number: JP17801684U
Authority: JP
Priority date: 1984-11-22
Filing date: 1984-11-22
Publication date: 1986-06-16

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の概略を示す全体図、
第２図は排気タービンを拡大して示す一部断面図
、第３図はタービンハウジングとタービンブレー
ドとの間隙を示す要部断面図、第４図はタービン
ブレードの伸び変形量測定試験結果を示す図、第
５図はタービンハウジングとタービンブレードと
の間隙設定に加味されるタービンブレード各部位
の伸び変形量決定基準を示す図、第６図はタービ
ンハウジングとタービンブレードとの間隙を拡大
することに伴なうタービン効率および応答性試験
結果を示す図である。１：エンジン、４：コンプレツサ、７：排気タ
ービン、１１：排気ターボ装置、１６：タービン
ハウジング、１８：タービンブレード、２１：タ
ービンハウジング内壁面、Ａ：排気ガス流、Ｂ：
間隙、ａ：上流側、ｂ：下流側。 FIG. 1 is an overall diagram showing an outline of an embodiment of the present invention;
Figure 2 is a partial sectional view showing an enlarged exhaust turbine, Figure 3 is a sectional view of a main part showing the gap between the turbine housing and the turbine blade, and Figure 4 shows the results of a test to measure the amount of elongation deformation of the turbine blade. Figure 5 is a diagram showing the standard for determining the amount of elongation deformation of each part of the turbine blade, which is taken into account when setting the gap between the turbine housing and the turbine blade. It is a figure which shows the result of an accompanying turbine efficiency and responsiveness test. 1: Engine, 4: Compressor, 7: Exhaust turbine, 11: Exhaust turbo device, 16: Turbine housing, 18: Turbine blade, 21: Turbine housing inner wall surface, A: Exhaust gas flow, B:
Gap, a: upstream side, b: downstream side.

Claims

[Claims for Utility Model Registration] In an engine equipped with an exhaust turbo device consisting of an exhaust turbine and a compressor connected to the exhaust turbine, the exhaust turbine constitutes a part of the exhaust passage of the engine. An exhaust gas for an engine, characterized in that a gap provided between a turbine housing and a turbine blade rotatably disposed within the turbine housing is smaller on the downstream side of the exhaust gas flow than on the upstream side. turbo equipment.