JPS5584837A - Air-fuel ratio correcting apparatus - Google Patents
Air-fuel ratio correcting apparatusInfo
- Publication number
- JPS5584837A JPS5584837A JP16048278A JP16048278A JPS5584837A JP S5584837 A JPS5584837 A JP S5584837A JP 16048278 A JP16048278 A JP 16048278A JP 16048278 A JP16048278 A JP 16048278A JP S5584837 A JPS5584837 A JP S5584837A
- Authority
- JP
- Japan
- Prior art keywords
- air
- compensating
- passage
- fuel ratio
- mixture
- 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
- 239000000446 fuel Substances 0.000 title abstract 6
- 239000000203 mixture Substances 0.000 abstract 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
Landscapes
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
PURPOSE: To prevent that mixture ratio becomes excessively high at a high land and to obtain an optimal mixture ratio throughout the entire operational range of engine, by transmitting pressure in the air passage of carburetor to a portion of a compenensating-air passage in an apparatus for compensating change in air-fuel ratio of carburetor caused by the change in altitude.
CONSTITUTION: When bellows 9 is expanded at the time of high-speed operation of engine and taper needle 14 is pushed resultantly, clearance is formed between the needle 14 and orifice 13, so that air-fuel ratio compensating air 10 metered by the clearance is supplied through passage 17 to fuel system. Here, if negative pressure 3 at venturi is increased, amount of air passed through main air bleed 16 and passage 17 is increased and fuel flow is reduced by the increase in resistance, so that mixture becomes lean. In order to overcome the above diffuculties, negative pressure 3 at venturi is transmitted to an upstream side of the said compensating-air metering portion to lower pressure at the portion. With such an arrangement, amount of air 10 introduced for compensating air-fuel ratio is reduced by decreasing the pressure difference on the opposite sides of the said metering portion, so that the mixture is prevented from becoming excessively lean.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16048278A JPS5584837A (en) | 1978-12-22 | 1978-12-22 | Air-fuel ratio correcting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16048278A JPS5584837A (en) | 1978-12-22 | 1978-12-22 | Air-fuel ratio correcting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5584837A true JPS5584837A (en) | 1980-06-26 |
Family
ID=15715893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16048278A Pending JPS5584837A (en) | 1978-12-22 | 1978-12-22 | Air-fuel ratio correcting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5584837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100126466A1 (en) * | 2008-11-26 | 2010-05-27 | Nikki Co., Ltd. | Carburetor |
-
1978
- 1978-12-22 JP JP16048278A patent/JPS5584837A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100126466A1 (en) * | 2008-11-26 | 2010-05-27 | Nikki Co., Ltd. | Carburetor |
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