JPS61108842U

JPS61108842U -

Info

Publication number: JPS61108842U
Application number: JP19475084U
Authority: JP
Priority date: 1984-12-21
Filing date: 1984-12-21
Publication date: 1986-07-10

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例に係るケーシング
構造を有するターボチヤージヤの要部断面図、第
２図は第１図の―断面図、第３図は本考案の
第２実施例に係るケーシング構造を有するタービ
ンケーシングの断面図、第４図は従来構造のケー
シング構造を有するターボチヤージヤの要部断面
図、第５図は第４図の―断面図である。１……ターボチヤージヤ、２……タービン部、
３……コンプレツサ部、４……タービンケーシン
グ、５……コンプレツサケーシング、６……セン
ターハウジング、７……タービンホイール、８…
…コンプレツサホイール、９……タービンシヤフ
ト、１１……燃焼ガス導入部、１２……渦流室、
１３……低圧部、１４……水切部、１５……ノズ
ル、２１，２２……連通路、２４……開閉弁、２
５……アクチユエータ。 Fig. 1 is a sectional view of a main part of a turbocharger having a casing structure according to a first embodiment of the present invention, Fig. 2 is a cross-sectional view of Fig. 1, and Fig. 3 is a casing according to a second embodiment of the present invention. FIG. 4 is a cross-sectional view of a main part of a turbocharger having a conventional casing structure, and FIG. 5 is a cross-sectional view of FIG. 4. 1...Turbo charger, 2...Turbine section,
3... Compressor part, 4... Turbine casing, 5... Compressor casing, 6... Center housing, 7... Turbine wheel, 8...
... Compressor wheel, 9 ... Turbine shaft, 11 ... Combustion gas introduction part, 12 ... Swirl chamber,
13...Low pressure part, 14...Draining part, 15...Nozzle, 21, 22...Communication path, 24...Opening/closing valve, 2
5...actuator.

Claims

[Scope of utility model registration request]

In a turbocharger in which a turbine wheel fitted in a turbine casing and a compressor wheel fitted in a compressor casing are connected via a turbine shaft, the turbine casing is located on the upstream side of the combustion gas, and A combustion gas introduction section whose passage area gradually decreases toward the downstream side of the combustion gas, and a nozzle that is continuously wound in a spiral on the downstream side of the combustion gas introduction section and whose inner circumference faces the outer circumference of the turbine wheel. The combustion gas introduction part and the low pressure part located at the most downstream of the swirl chamber,
A casing structure for a turbocharger, characterized in that the combustion gas introduction part and the low pressure part are communicated with each other via a communication passage provided through a drainage part that partitions the combustion gas introduction part and the low pressure part.