JPS59159767U

JPS59159767U - Internal combustion engine exhaust recirculation device

Info

Publication number: JPS59159767U
Application number: JP5350383U
Authority: JP
Inventors: 山根　通宏; 大城　義孝
Original assignee: 日産自動車株式会社
Priority date: 1983-04-12
Filing date: 1983-04-12
Publication date: 1984-10-26

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来例の断面図、第２図は第１図のＡ−Ａ断面
歯、第３図は第１図のＢ−Ｂ断面図、第４図は本考案の
第１実施例の断面図、第５図は第４図の要部を拡大した
断面図、第６図は第５図のＣ−Ｃ断面図、第７図は本考
案の第２実施例の要部の断面図、第８図は第７図のＤ−
Ｄ断面図、第９図は本考案の第３実施例の要部の断面図
、第１０図は第９図のＥ−Ｅ断面図、第１１図は排気吐
出口の向きと排気吐出管部の形状による排気と吸気との
混合の変化状態を示す断面図である。１０・・・内燃機関、１１・・・吸気マニフォールド、
１２・・・分岐通路、１３・・・集合部、１４・・・排
気吐出管（排気吐出管部）、１５・・・排気マニフォー
ルド、１６・・・排気還流通路、１７・・・排気還流制
御弁、１９・・・排気吐出口、２０・・・突起。第９図第１０図Fig. 1 is a sectional view of the conventional example, Fig. 2 is a sectional view taken along the line AA in Fig. 1, Fig. 3 is a sectional view taken along BB in Fig. 1, and Fig. 4 is a sectional view of the first embodiment of the present invention. 5 is an enlarged sectional view of the main part of FIG. 4, FIG. 6 is a sectional view taken along the line C-C of FIG. 5, and FIG. 7 is a sectional view of the main part of the second embodiment of the present invention. , Figure 8 is D- in Figure 7.
D sectional view, FIG. 9 is a sectional view of the main part of the third embodiment of the present invention, FIG. 10 is a sectional view taken along E-E in FIG. 9, and FIG. 11 is the direction of the exhaust discharge port and the exhaust discharge pipe section. FIG. 4 is a cross-sectional view showing how the mixture of exhaust gas and intake air changes depending on the shape of the exhaust gas. 10... Internal combustion engine, 11... Intake manifold,
12... Branch passage, 13... Gathering part, 14... Exhaust discharge pipe (exhaust discharge pipe part), 15... Exhaust manifold, 16... Exhaust recirculation passage, 17... Exhaust recirculation control Valve, 19...Exhaust outlet, 20...Protrusion. Figure 9 Figure 10

Claims

[Scope of utility model registration request]

In an internal combustion engine configured to recirculate a portion of exhaust gas to the intake system, an intake manifold that forms a branch passage leading to each cylinder of the engine and a gathering part of the branch passage, and an intake manifold that is branched from the exhaust passage and that The exhaust gas recirculation passage includes an exhaust gas recirculation passage having an exhaust discharge pipe portion protruding into the gathering part of the intake manifold, and an exhaust gas recirculation control valve interposed in the exhaust gas recirculation passage, which opens in opposition to intake air product temperature. An exhaust gas recirculation device for an internal combustion engine, characterized in that an exhaust discharge port is provided in the exhaust discharge pipe section.