JPS644830U

JPS644830U -

Info

Publication number: JPS644830U
Application number: JP9898187U
Authority: JP
Priority date: 1987-06-27
Filing date: 1987-06-27
Publication date: 1989-01-12

Description

[Brief explanation of drawings]

第１図は本考案実施例によるターボチヤージヤ
用オイルシール機構の要部断面図、第２図はオイ
ル通路を設けた第１スラストブツシユの拡大断面
図、第３図は従来技術におけるターボチヤージヤ
の断面図、第４図は第３図のオイルシール機構要
部断面図である。１……ロータ軸、２……コンプレツサロータ、
５……第１スラストブツシユ、５ａ……第１スラ
ストブツシユのフランジ部、５ｂ……第１スラス
トブツシユの穴、５ｃ……第１スラストブツシユ
の溝、５ｅ……第１スラストブツシユのオイル通
路、６……第２スラストブツシユ、７……スラス
トベアリング、１０……シールプレート、１２…
…シールリング、１３……仕切板。 Fig. 1 is a sectional view of essential parts of an oil seal mechanism for a turbocharger according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view of a first thrust bush provided with an oil passage, and Fig. 3 is a sectional view of a conventional turbocharger. , FIG. 4 is a sectional view of a main part of the oil seal mechanism shown in FIG. 3. 1...Rotor shaft, 2...Compressor rotor,
5...First thrust bush, 5a...Flange of the first thrust bush, 5b...Hole of the first thrust bush, 5c...Groove of the first thrust bush, 5e...First thrust bush Oil passage of bushing, 6...Second thrust bush, 7...Thrust bearing, 10...Seal plate, 12...
... Seal ring, 13... Partition plate.

Claims

[Scope of utility model registration request]

a rotor shaft having a turbine rotor located in an exhaust passage at one end and a compressor rotor located in an intake passage at the other end; a thrust bearing supporting the rotor shaft in a thrust direction; first and second thrust bushes provided on the rotor shaft and rotating together with the rotor shaft; a seal plate disposed outside the first thrust bush; and an inner circumferential surface of the seal plate. and an outer circumferential surface of the first thrust bush; and a partition plate fixed to the inner circumferential surface of the seal plate. An oil seal for a turbocharger, wherein a radial hole is provided in the thrust bush, a groove is provided along the outer periphery of the thrust bush around where the seal ring is disposed, and an oil passage is formed through which the groove and the hole communicate. mechanism.