JPS54141919A - Secondary air feeder - Google Patents
Secondary air feederInfo
- Publication number
- JPS54141919A JPS54141919A JP4926778A JP4926778A JPS54141919A JP S54141919 A JPS54141919 A JP S54141919A JP 4926778 A JP4926778 A JP 4926778A JP 4926778 A JP4926778 A JP 4926778A JP S54141919 A JPS54141919 A JP S54141919A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- air
- diaphragm
- pump chamber
- 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 Gas After Treatment (AREA)
Abstract
PURPOSE: To economically supply secondary air to an exhaust system employing a catalytic converter, a thermal reactor or the like, by using power based on the negative pressure which is produced in an intake pipe at the time of idling or drastic deceleration.
CONSTITUTION: When a diaphragm 8 is moved toward a pump chamber 7 by a spring 22, a changeover valve 13 is pushed up and a retainer 16 is tilted so that an atmospheric pressure passage 10 is closed by a ball valve 18 and a negative pressure passage 12 connected to an intake manifold is opened. As a result, the pressure in a pressure changer 9 becomes negative and the diaphragm 8 is moved down against the spring 22. At the time, a reed valve 1 at an inlet port 2 is opened to suck air from an air cleaner 21 into the pump chamber 7. The external air is then introduced into the pressure chamber 9 in contrast with the preceding case by the reverse- swing shifting action of the changeover valve 13 around a fulcrum 19 so that the diaphragm 8 is moved up and the air in the pump chamber 7 is transferred under pressure to an exhaust passage 5 through a reed valve 1'.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4926778A JPS54141919A (en) | 1978-04-27 | 1978-04-27 | Secondary air feeder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4926778A JPS54141919A (en) | 1978-04-27 | 1978-04-27 | Secondary air feeder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54141919A true JPS54141919A (en) | 1979-11-05 |
Family
ID=12826048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4926778A Pending JPS54141919A (en) | 1978-04-27 | 1978-04-27 | Secondary air feeder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54141919A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6216453B1 (en) * | 1996-11-21 | 2001-04-17 | Paul S. Maurer | Secondary air supply system for internal combustion engine |
-
1978
- 1978-04-27 JP JP4926778A patent/JPS54141919A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6216453B1 (en) * | 1996-11-21 | 2001-04-17 | Paul S. Maurer | Secondary air supply system for internal combustion engine |
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