JPS63123719U - - Google Patents
Info
- Publication number
- JPS63123719U JPS63123719U JP1571287U JP1571287U JPS63123719U JP S63123719 U JPS63123719 U JP S63123719U JP 1571287 U JP1571287 U JP 1571287U JP 1571287 U JP1571287 U JP 1571287U JP S63123719 U JPS63123719 U JP S63123719U
- Authority
- JP
- Japan
- Prior art keywords
- air supply
- secondary air
- passage
- engine
- check 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
第１図および第２図は本考案の第１実施例に係
るエンジンの二次空気供給装置を示す図であり、
第１図は通路開閉弁および逆止弁の具体的構造を
拡大して示す要部縦断面図、第２図はエンジンの
全体構成を示す概略説明図、第３図は本考案の第
２実施例に係る通路開閉弁および逆止弁の具体的
構造を拡大して示す要部縦断面図である。
２……吸気通路、３……排気通路、７……二次
空気供給通路、７１……大気側導管、７２……排
気通路側導管、１０……通路開閉弁、２０，５０
……逆止弁、２４，５４……シート部材、２５，
５５……弁体、６０，６０……付勢部材。
1 and 2 are diagrams showing a secondary air supply device for an engine according to a first embodiment of the present invention,
Fig. 1 is an enlarged vertical sectional view of the main parts showing the specific structure of the passage opening/closing valve and check valve, Fig. 2 is a schematic explanatory drawing showing the overall structure of the engine, and Fig. 3 is a second embodiment of the present invention. FIG. 2 is an enlarged vertical cross-sectional view of a main part of a specific structure of a passage opening/closing valve and a check valve according to an example. 2... Intake passage, 3... Exhaust passage, 7... Secondary air supply passage, 71... Atmospheric side conduit, 72... Exhaust passage side conduit, 10... Passage opening/closing valve, 20, 50
... Check valve, 24, 54 ... Sheet member, 25,
55... Valve body, 60, 60... Biasing member.
Claims (1)
ジンの運転条件に応じて作動する通路開閉弁と、
大気側から排気通路側への空気の流動のみを許容
する逆止弁とを介装したエンジンの二次空気供給
装置において、 上記通路開閉弁の閉弁時に逆止弁を開弁する付
勢部材を設けたことを特徴とするエンジンの二次
空気供給装置。[Scope of claim for utility model registration] A passage opening/closing valve that operates according to engine operating conditions in a secondary air supply passage communicating with an exhaust passage;
In a secondary air supply system for an engine equipped with a check valve that only allows air to flow from the atmosphere side to the exhaust passage side, an urging member that opens the check valve when the passage opening/closing valve is closed. A secondary air supply device for an engine, characterized in that it is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1571287U JPS63123719U (en) | 1987-02-05 | 1987-02-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1571287U JPS63123719U (en) | 1987-02-05 | 1987-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63123719U true JPS63123719U (en) | 1988-08-11 |
Family
ID=30806898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1571287U Pending JPS63123719U (en) | 1987-02-05 | 1987-02-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63123719U (en) |
-
1987
- 1987-02-05 JP JP1571287U patent/JPS63123719U/ja active Pending