JPS62126512U

JPS62126512U -

Info

Publication number: JPS62126512U
Application number: JP1252886U
Authority: JP
Priority date: 1986-02-01
Filing date: 1986-02-01
Publication date: 1987-08-11

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例に係る内燃機関の
エキゾーストマニホルドの平面図、第２図は第１
図の―線に沿う断面図、第３図は第１図およ
び第２図の装置の要部拡大断面図、第４図は１つ
の気筒における排気圧力変動図、第５図は４気筒
エンジンの各気筒間の排気圧力変動図、第６図は
第１図の装置における第４図および第６図の排気
圧力変動による排気ガスの流れを示す部分断面図
、第７図は第１図とは別の態様の部分拡大断面図
、第８図は第１図および第７図とは別の態様の部
分拡大断面図、第９図は第１図の実施例装置とは
エキゾーストマニホルドのターボチヤージヤ取付
け側のフランジ面の角度が異なる場合の内燃機関
のエキゾーストマニホルドの平面図、第１０図は
本考案の第２実施例に係る内燃機関のエキゾース
トマニホルドの要部拡大断面図である。１……エキゾーストマニホルド、３……ブラン
チ、４……出口、８，２７……ターボチヤージヤ
、５……集合部、１５……集合部中央部端面、９
，３４……クリアランス、１０，３０……酸素セ
ンサ、１０ａ，３０ａ……検出部、１１，３１…
…貫通穴。 FIG. 1 is a plan view of an exhaust manifold for an internal combustion engine according to a first embodiment of the present invention, and FIG.
Figure 3 is an enlarged cross-sectional view of the main parts of the device shown in Figures 1 and 2, Figure 4 is a diagram of exhaust pressure fluctuation in one cylinder, and Figure 5 is a diagram of a four-cylinder engine. Fig. 6 is a partial cross-sectional view showing the flow of exhaust gas due to the exhaust pressure fluctuations in Fig. 4 and Fig. 6 in the device shown in Fig. 1, and Fig. 7 is a diagram of exhaust gas pressure fluctuations between each cylinder. FIG. 8 is a partially enlarged sectional view of another embodiment, FIG. 8 is a partially enlarged sectional view of another embodiment from FIGS. 1 and 7, and FIG. 9 shows the embodiment of the device shown in FIG. FIG. 10 is a plan view of an exhaust manifold for an internal combustion engine in which the angles of the flange surfaces are different, and FIG. 10 is an enlarged sectional view of a main part of an exhaust manifold for an internal combustion engine according to a second embodiment of the present invention. 1... Exhaust manifold, 3... Branch, 4... Outlet, 8, 27... Turbocharger, 5... Collecting part, 15... End face of central part of collecting part, 9
, 34... Clearance, 10, 30... Oxygen sensor, 10a, 30a... Detection section, 11, 31...
...Through hole.

Claims

[Scope of utility model registration request]

In an exhaust manifold, multiple branches connected to each cylinder of the engine are made independent so that the exhaust gas does not merge near the exit of the exhaust manifold, and are gathered together so that the exhaust gas merges near the exit of the exhaust manifold. A through hole for installing an oxygen sensor is provided in the center of the wall of the branch gathering area near the outlet of the manifold, and the oxygen sensor is inserted into the hole so that the detection part of the oxygen sensor is inserted from inside the branch of the exhaust manifold into the center of the exhaust gas joining area. An exhaust manifold for an internal combustion engine, characterized in that it is installed so as to protrude from the exhaust manifold.