JPH0180629U

JPH0180629U -

Info

Publication number: JPH0180629U
Application number: JP1987175183U
Authority: JP
Priority date: 1987-11-17
Filing date: 1987-11-17
Publication date: 1989-05-30

Description

[Brief explanation of the drawing]

第１図はターボチヤージヤの縦断面図、第２図
は第１図の―線矢視図、第３図はアクチユエ
ータと開閉リンク機構部分の図、第４図は第３図
の―線断面図、第５図及び第６図は夫々シー
ルリングを示しＡは平面図、Ｂは正面図である。尚図面中１はターボチヤージヤ、３はコンプレ
ツサハウジング、５はタービンハウジング、７は
センタハウジング、１３はコンプレツサインペラ
、１９はタービンホイール、３７は可動ベーン、
４３はアクチユエータ、４５は開閉リンク機構、
６３は支軸、７７はブツシユである。 Fig. 1 is a longitudinal sectional view of the turbocharger, Fig. 2 is a view taken along the line - - of Fig. 1, Fig. 3 is a view of the actuator and the opening/closing linkage mechanism, Fig. 4 is a sectional view taken along the - line of Fig. 3, 5 and 6 respectively show the seal ring, and A is a plan view and B is a front view. In the drawing, 1 is a turbocharger, 3 is a compressor housing, 5 is a turbine housing, 7 is a center housing, 13 is a compressor impeller, 19 is a turbine wheel, 37 is a movable vane,
43 is an actuator, 45 is an opening/closing link mechanism,
63 is a support shaft, and 77 is a bush.

Claims

[Claims for Utility Model Registration] (1) A variable capacity turbine having a movable vane that changes the flow area of an exhaust flow path, and a support shaft that opens and closes the movable vane and is inserted between the inside and outside of the housing. an actuator disposed on the outside of the housing and connected to the opening/closing link mechanism, and a variable displacement turbocharger comprising: an actuator disposed outside a housing and connected to the opening/closing link mechanism; A bush having a cylindrical portion having a large inner circumferential surface and an end portion having an insertion hole into which the support shaft is inserted is press-fitted with the end portion located outside the housing, and the support shaft is inserted through the bush. A support shaft portion that is inserted between the inside and outside of the housing and inserted into the cylindrical portion of the bush,
A flange having an outer peripheral surface with a larger diameter than the support shaft diameter is formed to rotatably support the flange within the cylinder, a groove is formed on the outer periphery of the flange, and a seal ring is attached to this groove. An exhaust leak prevention structure for a variable displacement turbocharger, characterized in that the space between the support shaft and the bush is sealed. (2) The utility model registration request is characterized in that the spindle of the opening/closing link mechanism is supported at one end via a collar portion to which the seal ring is attached, and at the other end is supported by an appropriate bearing portion. The exhaust leakage prevention structure of the variable displacement turbocharger according to item 1.