JPS59114450U - engine exhaust system - Google Patents
engine exhaust systemInfo
- Publication number
- JPS59114450U JPS59114450U JP719283U JP719283U JPS59114450U JP S59114450 U JPS59114450 U JP S59114450U JP 719283 U JP719283 U JP 719283U JP 719283 U JP719283 U JP 719283U JP S59114450 U JPS59114450 U JP S59114450U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- exhaust system
- engine exhaust
- valve
- exhaust valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Exhaust Silencers (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Exhaust-Gas Circulating Devices (AREA)
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
図面は本考案の実施態様を例示し、第１図は概略構成図
、第２図は２つの排気弁の開閉タイミングを示す曲線図
、第３図は排気弁の開閉に対するＨＣ排出量の関係を示
すグラフである。
１・・・・・・シリンダヘッド、２・・・・・・燃焼室
、３．４・・・・・・吸気ポート、５．６・曲・排気ポ
ート、７．８・・・・・・吸気弁、９．１０・・・・・
・排気弁、１１．１２・・・・・・排気通路、１３・・
・・・・補助触媒装置、１５・・・・・・主触媒装置、
１６・・・・・・吸気通路、１７・・・・・・排気ガス
還流通路、１７ａ・・・・・・取出口、１８・・・・・
・還流制御弁、Ａ、 Ｂ・・・・・・排気系。The drawings illustrate the embodiment of the present invention, and FIG. 1 is a schematic configuration diagram, FIG. 2 is a curve diagram showing the opening and closing timing of two exhaust valves, and FIG. 3 is a diagram showing the relationship between the opening and closing of the exhaust valve and the HC emission amount. This is a graph showing. 1...Cylinder head, 2...Combustion chamber, 3.4...Intake port, 5.6.Curve/exhaust port, 7.8... Intake valve, 9.10...
・Exhaust valve, 11.12...Exhaust passage, 13...
...Auxiliary catalyst device, 15...Main catalyst device,
16... Intake passage, 17... Exhaust gas recirculation passage, 17a... Outlet, 18...
・Recirculation control valve, A, B...Exhaust system.
Claims (1)
と、これ以外の時期に開く第２排気弁とを備えるととも
に、第１排気弁側の排気系に対して重点的に排気浄化装
置を配設したエンジンの排気装置において、排気ガスの
一部を吸気系に還流する排気ガス還流通路の取出口を上
記第２排気弁側の排気系に開口接続したことを特徴とす
るエンジンの排気装置。゛ It is equipped with a first exhaust valve that opens at the end of the exhaust stroke or at the beginning and end, and a second exhaust valve that opens at other times, and an exhaust purification device is mainly arranged for the exhaust system on the first exhaust valve side. 1. An exhaust system for an engine, characterized in that an outlet of an exhaust gas recirculation passage for recirculating a part of exhaust gas to an intake system is open-connected to the exhaust system on the side of the second exhaust valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP719283U JPS59114450U (en) | 1983-01-20 | 1983-01-20 | engine exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP719283U JPS59114450U (en) | 1983-01-20 | 1983-01-20 | engine exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59114450U true JPS59114450U (en) | 1984-08-02 |
Family
ID=30138723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP719283U Pending JPS59114450U (en) | 1983-01-20 | 1983-01-20 | engine exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59114450U (en) |
-
1983
- 1983-01-20 JP JP719283U patent/JPS59114450U/en active Pending
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