JPS608413U - Air feed pipe installation device for exhaust purification in internal combustion engines - Google Patents

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

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

図面は本考案装置の実施例を示す範ので、第１図は本考
案装置を備えた水平対向型内燃機関頭部の縦断面図、第
２図は第１図■−■線に沿うシリンダヘッドの断面図、
第３図は第１図■−■線よりみたシリンダヘッドの部分
上面図、第４図は第１図ＴＶ−ＩＶ線よりみた吸気管の
取付フランジの端面図、第５図は第１図■−Ｖ線断面図
、第６図は二次エアフィードパイプの側面図である。 Ｅ・・・・・・機関本体、Ｉｎ・・・・・・吸気管、Ｅ
ｘ・・・・・・排気　′管、Ｐ・・・・・・二次エアフ
ィードパイプ、１２・・・・・・吸−気ポート、１３・
・・・・・排気ポート、１６・・・・・・取付フランジ
、１８・・・・・・二次エア通路、２４・・・・・・ジ
ヨイント、２６・・・・・・リード弁（逆止弁）。The drawings show an embodiment of the device of the present invention, so FIG. 1 is a longitudinal sectional view of the head of a horizontally opposed internal combustion engine equipped with the device of the present invention, and FIG. 2 is a cylinder head taken along the line ■-■ in FIG. 1. A cross-sectional view of
Figure 3 is a partial top view of the cylinder head seen from the line ■-■ in Figure 1, Figure 4 is an end view of the intake pipe mounting flange seen from the line TV-IV in Figure 1, and Figure 5 is a partial top view of the cylinder head seen from the line ■-■ in Figure 1. 6 is a side view of the secondary air feed pipe. E...Engine body, In...Intake pipe, E
x...Exhaust pipe, P...Secondary air feed pipe, 12...Intake port, 13.
...Exhaust port, 16...Mounting flange, 18...Secondary air passage, 24...Joint, 26...Reed valve (reverse stop valve).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 機関本体に吸気管および排気管端部の取付フランジをそ
れぞれ固着し、燃焼室に通じる吸気ポートおよび排気ポ
ートの開口端を前記吸気管および排気管にそれぞれ連通
してなる、内燃機関において、前記機関本体に、前記排
気ポートに連通ずる二次エア通路を穿設し、該通路の開
口端に、逆止弁を介して大気に連通ずる二次ニアフィー
ドパ才プのジヨイントを抜差自在に接続し、該ジョオン
トを、機関本体に固着される、吸気管、もしくは排気管
端部の前記取付フランジを以て固定したことを特徴とす
る内燃機関における排気浄化用エアフィードパイプ取付
装置。In an internal combustion engine, mounting flanges at ends of an intake pipe and an exhaust pipe are respectively fixed to the engine body, and open ends of the intake port and exhaust port communicating with the combustion chamber are communicated with the intake pipe and the exhaust pipe, respectively. A secondary air passage communicating with the exhaust port is bored in the main body, and a joint of a secondary near-feed pipe communicating with the atmosphere is connected to the open end of the passage via a check valve so as to be freely removable. An air feed pipe attachment device for exhaust gas purification in an internal combustion engine, characterized in that the joont is fixed to the engine body using the attachment flange at the end of an intake pipe or an exhaust pipe.