JPH0424635U

JPH0424635U -

Info

Publication number: JPH0424635U
Application number: JP6491490U
Authority: JP
Priority date: 1990-06-21
Filing date: 1990-06-21
Publication date: 1992-02-27

Description

[Brief explanation of the drawing]

第１図は本考案排気制御弁の第１実施例を示す
横断平面図。第２図は第１図の排気制御弁の軸受
装置の分解斜視図。第３図は第２図の−方向
に見た断面図。第４図は第１図の排気制御弁を使
用したシーケンシヤルターボシステムの概略図。
第５図は本考案排気制御弁の第２実施例の一部を
示す横断平面図。第６図は第５図の排気制御弁の
軸受装置の分解斜視図。第７図は本考案排気制御
弁の第３実施例の要部を示す横断平面図。１０……エンジン本体、１２……吸気管、１４
……排気管、１７……大型ターボチヤージヤ、１
８……小型ターボチヤージヤ、３０……第１排気
バイパス通路、３２……ウエイストゲート弁、３
６……第２排気バイパス通路、３８……排気制御
弁、４６……吸気バイパス弁、５４，５８，６４
……電磁弁（ＶＳＶ）、７８，８０……圧力セン
サ、１００……本体、１０１……弁体、１０２，
１０４……軸部、１０６，１０８……軸受孔、１
１０，１１２……フランジ部、１２０，１２２…
…軸受装置、１２３，１２４……スリーブ、１２
６，１２８……軸受ボール、１３０，１３２，１
３４，１３６……シールワツシヤ、１４０，１４
２，１４６……ソケツト、１４３……レバー、１
４４……スリーブ。 FIG. 1 is a cross-sectional plan view showing a first embodiment of the exhaust control valve of the present invention. FIG. 2 is an exploded perspective view of the bearing device of the exhaust control valve shown in FIG. 1. FIG. 3 is a sectional view taken in the negative direction of FIG. 2. FIG. 4 is a schematic diagram of a sequential turbo system using the exhaust control valve of FIG. 1.
FIG. 5 is a cross-sectional plan view showing a part of the second embodiment of the exhaust control valve of the present invention. 6 is an exploded perspective view of the bearing device of the exhaust control valve shown in FIG. 5. FIG. FIG. 7 is a cross-sectional plan view showing the main parts of the third embodiment of the exhaust control valve of the present invention. 10...Engine body, 12...Intake pipe, 14
...Exhaust pipe, 17...Large turbo charger, 1
8...Small turbocharger, 30...First exhaust bypass passage, 32...Wastegate valve, 3
6... Second exhaust bypass passage, 38... Exhaust control valve, 46... Intake bypass valve, 54, 58, 64
... Solenoid valve (VSV), 78, 80 ... Pressure sensor, 100 ... Main body, 101 ... Valve body, 102,
104... Shaft portion, 106, 108... Bearing hole, 1
10, 112...flange part, 120, 122...
... Bearing device, 123, 124 ... Sleeve, 12
6,128...Bearing ball, 130,132,1
34,136...Seal washer, 140,14
2,146...Socket, 143...Lever, 1
44...Sleeve.

Claims

[Scope of utility model registration request]

A bearing device for the shaft of a butterfly valve disposed in an exhaust gas flow path formed in a main body, comprising a sleeve disposed between a bearing hole of the main body and the shaft, the sleeve having a circular shape. A bearing device for an exhaust control valve, the bearing device having a socket portion formed at intervals in the circumferential direction, and a bearing ball disposed in the socket portion.