JPH0256820U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係る二段ターボエンジンのタ
ーボチヤージヤ配設構造の一実施例の分解斜視図
、第２図は第１図の配設構造を上方より見た図、
第３図は排気マニホルドの排気ガス流れ方向に沿
う縦断面図、第４図は排気バイパス弁駆動装置の
第１の例を示す図、第５図は排気バイパス弁駆動
装置の第２例を示す図、第６図は従来の二段ター
ボエンジンの構造を示す図である。 １……エンジン、２……排気マニホルド、３…
…高圧段ターボチヤージヤ、５……排気バイパス
弁、６……排気バイパス弁駆動装置、７……異形
管継手、８……低圧段ターボチヤージヤ。 FIG. 1 is an exploded perspective view of an embodiment of a turbocharger arrangement structure for a two-stage turbo engine according to the present invention, and FIG. 2 is a view of the arrangement structure shown in FIG. 1 viewed from above.
FIG. 3 is a longitudinal cross-sectional view of the exhaust manifold along the exhaust gas flow direction, FIG. 4 is a diagram showing a first example of the exhaust bypass valve driving device, and FIG. 5 is a diagram showing a second example of the exhaust bypass valve driving device. 6 are diagrams showing the structure of a conventional two-stage turbo engine. 1...Engine, 2...Exhaust manifold, 3...
...High pressure stage turbocharger, 5... Exhaust bypass valve, 6... Exhaust bypass valve drive device, 7... Irregular pipe joint, 8... Low pressure stage turbocharger.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 吸入空気を過給する低圧段ターボチヤージヤと
、該低圧段ターボチヤージヤで過給された空気を
更に過給してエンジンに送る高圧段ターボチヤー
ジヤとを有する二段ターボエンジンにおいて、モ
ジユラーパルス型排気マニホルドに少なくとも２
つの排気ガス集合開口部を形成し、上記排気マニ
ホルドの一端側の第１の集合開口部には上記高圧
段ターボチヤージヤの排気タービンを連結し、上
記排気マニホルドの中央側の第２の集合開口部に
は排気バイパス弁と短い排気バイパス導管とを介
して上記低圧段ターボチヤージヤの排気タービン
を連結し、低圧段及び高圧段ターボチヤージヤを
共に上記排気マニホルド近傍に配置し得るように
したことを特徴とする二段ターボエンジンのター
ボチヤージヤ配設構造。 In a two-stage turbo engine having a low-pressure turbocharger that supercharges intake air and a high-pressure turbocharger that further supercharges the air supercharged by the low-pressure turbocharger and sends it to the engine, at least two
an exhaust turbine of the high pressure stage turbocharger is connected to the first collecting opening on one end side of the exhaust manifold, and a second collecting opening on the center side of the exhaust manifold is connected to the first collecting opening on one end side of the exhaust manifold. The two-stage system is characterized in that the exhaust turbine of the low-pressure stage turbocharger is connected to the exhaust turbine of the low-pressure stage turbocharger through an exhaust bypass valve and a short exhaust bypass conduit, so that both the low-pressure stage and the high-pressure stage turbocharger can be disposed near the exhaust manifold. Turbocharger arrangement structure of a turbo engine.