JPS54120315A - Exhaust-gas purifying apparatus - Google Patents
Exhaust-gas purifying apparatusInfo
- Publication number
- JPS54120315A JPS54120315A JP2730878A JP2730878A JPS54120315A JP S54120315 A JPS54120315 A JP S54120315A JP 2730878 A JP2730878 A JP 2730878A JP 2730878 A JP2730878 A JP 2730878A JP S54120315 A JPS54120315 A JP S54120315A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- air
- negative pressure
- chamber
- exhaust
- 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.)
- Granted
Links
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
PURPOSE: To reduce the generation of noxious components without detracting driving faculty by arranging an air control valve which opens and closes according to the driving condition, in the intake passage of an engine.
CONSTITUTION: To the intake passage 10 on the downstream of a throttle valve 14 equipped with a carburetor 4 which communicates to an engine 2, an air feeding passage 16 equipped with an air amount control apparatus 26 is allowed to communicate. Into the negative pressure chamber 34 of said apparatus 26, the intake pipe negative pressure just above the throttle valve 14 in perfect closure is introduced through a pipe 32, and a control valve 28 is opened and cloced. The numeral 46 designates a control valve device, and by three leaves of diaphragms 56, 58, and 62 fixed on one rod 64, a first pressure chamber 48 in which the exhaust pressure in an exhaust pipe 8 operates, a first air opening chamber 50, a second pressure chamber 52 in which the pressure on the downstream of the throttle valve 44 in the passage 16 operates, and a second air opening chamber 54 are formed in division. Due to the pressure difference between the first and second pressure chambers 48 and 52, a valve 66 is opening-closing-controlled, and the negative pressure transmission amount to a negative pressure chamber 34 is varied according to the driving condition.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2730878A JPS54120315A (en) | 1978-03-09 | 1978-03-09 | Exhaust-gas purifying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2730878A JPS54120315A (en) | 1978-03-09 | 1978-03-09 | Exhaust-gas purifying apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54120315A true JPS54120315A (en) | 1979-09-18 |
| JPS6350536B2 JPS6350536B2 (en) | 1988-10-11 |
Family
ID=12217447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2730878A Granted JPS54120315A (en) | 1978-03-09 | 1978-03-09 | Exhaust-gas purifying apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54120315A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920525A (en) * | 1972-04-19 | 1974-02-23 | ||
| JPS52143334A (en) * | 1976-05-25 | 1977-11-29 | Toyota Motor Corp | Air-fuel ratio control apparatus of internal combustion engine |
-
1978
- 1978-03-09 JP JP2730878A patent/JPS54120315A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920525A (en) * | 1972-04-19 | 1974-02-23 | ||
| JPS52143334A (en) * | 1976-05-25 | 1977-11-29 | Toyota Motor Corp | Air-fuel ratio control apparatus of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6350536B2 (en) | 1988-10-11 |
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