JPS5814419U - Secondary air supply system for internal combustion engines - Google Patents
Secondary air supply system for internal combustion enginesInfo
- Publication number
- JPS5814419U JPS5814419U JP10720781U JP10720781U JPS5814419U JP S5814419 U JPS5814419 U JP S5814419U JP 10720781 U JP10720781 U JP 10720781U JP 10720781 U JP10720781 U JP 10720781U JP S5814419 U JPS5814419 U JP S5814419U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- secondary air
- engine
- passage
- negative pressure
- 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 Gas After Treatment (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
第１図は従来の内燃機関の二次空気供給装置の概略断面
図、第２図は本考案の一実施例に係る内燃機関の二次空
気供給装置の要部の横断面図、第３図は同上のＡ−Ａ矢
視拡大断面図、第４図は第２図のＢ−Ｂ矢視断面図であ
る。
１・・・機関エアクリーナ、２・・・排気通路、３・・
・二次空気通路、６・・・吸気絞弁、７・・・吸気通路
、８・・・負圧通路、１２・・・感温弁、２１・・・拡
張室、２２・・・細管、２３・・・フィルタ、２４・・
・二次空気取入口、２５・・・二次空気供給口、２６・
・・リード弁、２７・・・二次空気用エアフィルタ、２
８・・・弁体、３０・・・カット弁、３１・・・ダイヤ
フラム、３２・・・負圧作動室。FIG. 1 is a schematic cross-sectional view of a conventional secondary air supply device for an internal combustion engine, FIG. 2 is a cross-sectional view of a main part of a secondary air supply device for an internal combustion engine according to an embodiment of the present invention, and FIG. 4 is an enlarged cross-sectional view taken along line A-A in FIG. 2, and FIG. 4 is a cross-sectional view taken along line B-B in FIG. 1... Engine air cleaner, 2... Exhaust passage, 3...
- Secondary air passage, 6... Intake throttle valve, 7... Intake passage, 8... Negative pressure passage, 12... Temperature sensing valve, 21... Expansion chamber, 22... Thin tube, 23...filter, 24...
・Secondary air intake port, 25...Secondary air supply port, 26・
...Reed valve, 27...Air filter for secondary air, 2
8... Valve body, 30... Cut valve, 31... Diaphragm, 32... Negative pressure operating chamber.
Claims (1)
気通路にリード弁を設け、該リード弁を介し排気脈動圧
力を利用して排気通路に二次空気を導入する二次空気供
給装置において、リード弁の上流側にフィルタを介して
拡張室を設け、該拡張室の上流側二次空気通路を機関エ
アクリーナの周壁に沿った細管で形成し、該細管上流端
の機関エアクリーナダストサイドに開口する空気取入口
に、負圧応動型往復動式カット弁を開閉自由に設け、該
カット弁の負圧作動室と吸気絞弁下流の機関吸気通路と
を連通する負圧通路に機関温度により開閉する感温弁を
介装して、前記空気取入口をφ 機関低温域において前
記弁体を閉鎖する構成としたことを特徴とする内燃機関
の二次空気供給装置。In a secondary air supply device, a reed valve is provided in a secondary air passage that communicates an engine exhaust passage with an engine air cleaner, and secondary air is introduced into the exhaust passage using exhaust pulsating pressure through the reed valve. An expansion chamber is provided on the upstream side of the valve via a filter, and a secondary air passage on the upstream side of the expansion chamber is formed by a thin tube along the peripheral wall of the engine air cleaner. A negative pressure-responsive reciprocating cut valve is installed at the intake port to freely open and close, and a negative pressure passage that communicates the negative pressure operating chamber of the cut valve with the engine intake passage downstream of the intake throttle valve is equipped with a negative pressure response valve that opens and closes depending on the engine temperature. 1. A secondary air supply device for an internal combustion engine, characterized in that a warm valve is installed in the air intake port to close the valve body in a low temperature range of the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10720781U JPS5814419U (en) | 1981-07-21 | 1981-07-21 | Secondary air supply system for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10720781U JPS5814419U (en) | 1981-07-21 | 1981-07-21 | Secondary air supply system for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5814419U true JPS5814419U (en) | 1983-01-29 |
Family
ID=29901652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10720781U Pending JPS5814419U (en) | 1981-07-21 | 1981-07-21 | Secondary air supply system for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5814419U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5376217A (en) * | 1976-12-18 | 1978-07-06 | Toyota Motor Corp | Secondary air introducing apparatus of internal combustion engine |
| JPS5660814A (en) * | 1979-10-24 | 1981-05-26 | Yamaha Motor Co Ltd | Exhaust cleaner for internal combustion engine |
-
1981
- 1981-07-21 JP JP10720781U patent/JPS5814419U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5376217A (en) * | 1976-12-18 | 1978-07-06 | Toyota Motor Corp | Secondary air introducing apparatus of internal combustion engine |
| JPS5660814A (en) * | 1979-10-24 | 1981-05-26 | Yamaha Motor Co Ltd | Exhaust cleaner for internal combustion engine |
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