JPS6191017U - - Google Patents
Info
- Publication number
- JPS6191017U JPS6191017U JP17614484U JP17614484U JPS6191017U JP S6191017 U JPS6191017 U JP S6191017U JP 17614484 U JP17614484 U JP 17614484U JP 17614484 U JP17614484 U JP 17614484U JP S6191017 U JPS6191017 U JP S6191017U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- secondary air
- upstream side
- downstream side
- cover
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims 3
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000000605 extraction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例を示す二次空気供給
装置の要部断面図、第２図は従来の二次空気供給
装置を示す模式図である。
１１……過器であるエアクリーナ、１３，１
３′……拡張室及び拡張室を形成するケース、１
４……逆止弁カバー、１５……逆止弁、１７……
開閉弁部、２０……開閉弁カバー、２１……開閉
弁ハウジング、２２……ダイヤフラム、２３……
開閉弁、２７……負圧ポート、２９……流通路。
FIG. 1 is a sectional view of a main part of a secondary air supply device showing an embodiment of the present invention, and FIG. 2 is a schematic diagram showing a conventional secondary air supply device. 11...Air cleaner which is a super-equipment, 13,1
3'... Expansion chamber and case forming the expansion chamber, 1
4...Check valve cover, 15...Check valve, 17...
On-off valve section, 20... On-off valve cover, 21... On-off valve housing, 22... Diaphragm, 23...
On-off valve, 27...Negative pressure port, 29...Flow path.
Claims (1)
空気を供給するようにした内燃機関において、上
流側が空気過器に連通し、下流側がエアパイプ
を介して排気後処理装置に連通する抜張室を形成
するケースと、このケースに固定されて拡張室内
に内蔵される開閉弁カバーと、このカバー内に設
けられて機関の運転状態に応じて前記上流側と下
流側を開閉する開閉弁と、この開閉弁の下流に設
けられて上流側から下流側への流れを許容し、前
記開閉弁カバーとともに固定される逆止弁とを備
えることを特徴とする内燃機関の二次空気供給装
置。 In an internal combustion engine in which secondary air is supplied to an exhaust aftertreatment device by a secondary air supply device, an extraction chamber is provided, the upstream side of which communicates with the air filter, and the downstream side of which communicates with the exhaust aftertreatment device via an air pipe. an on-off valve cover that is fixed to the case and built into the expansion chamber; an on-off valve that is provided in the cover and opens and closes the upstream side and the downstream side according to the operating state of the engine; A secondary air supply device for an internal combustion engine, comprising a check valve that is provided downstream of an on-off valve, allows flow from an upstream side to a downstream side, and is fixed together with the on-off valve cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17614484U JPS6191017U (en) | 1984-11-19 | 1984-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17614484U JPS6191017U (en) | 1984-11-19 | 1984-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6191017U true JPS6191017U (en) | 1986-06-13 |
Family
ID=30733741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17614484U Pending JPS6191017U (en) | 1984-11-19 | 1984-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6191017U (en) |
-
1984
- 1984-11-19 JP JP17614484U patent/JPS6191017U/ja active Pending
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