JPS555473A - Air-fuel ratio controller - Google Patents
Air-fuel ratio controllerInfo
- Publication number
- JPS555473A JPS555473A JP7820078A JP7820078A JPS555473A JP S555473 A JPS555473 A JP S555473A JP 7820078 A JP7820078 A JP 7820078A JP 7820078 A JP7820078 A JP 7820078A JP S555473 A JPS555473 A JP S555473A
- Authority
- JP
- Japan
- Prior art keywords
- air
- valve
- fuel ratio
- degree
- opening
- 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
Abstract
PURPOSE: To effect the stable control of air fuel ratio in the low-load run of an engine, by providing two flow control valves in an accessory air passage.
CONSTITUTION: An accessory intake pipe 9 is provided to supply additional air from an air cleaner 2 to an intake pipe 5 at the downstream side of a throttle valve 4. The additional air is bypassed off a carburetor 3 and the throttle valve 4. A diaphragm chamber 13 of a first air control valve 10 is connected to an electromagnetic pressure control mechanism 30 through a pipe 51. When the air fuel ratio is smaller than a theoretical one, a solenoid valve 31 is energized another solenoid valve 32 is deenergized to conduct the intake negative pressure from the intake pipe 5 to the diaphragm ghamber 13 through the pipes 51, 53 to raise the degree of opening of a valve element 12 attahced to a diaphragm to increase the flow rate of the additional air. In the load low-load run, the degree of opening of a valve element 22 of a second air control valve 20 is lowered to prevent the flow rate of the additional air from greatly fluctuating due to change in the degree of opening of the first air control valve 10.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7820078A JPS555473A (en) | 1978-06-27 | 1978-06-27 | Air-fuel ratio controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7820078A JPS555473A (en) | 1978-06-27 | 1978-06-27 | Air-fuel ratio controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555473A true JPS555473A (en) | 1980-01-16 |
Family
ID=13655361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7820078A Pending JPS555473A (en) | 1978-06-27 | 1978-06-27 | Air-fuel ratio controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555473A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56148654A (en) * | 1980-04-18 | 1981-11-18 | Toyota Motor Corp | Air-fuel ratio control system of internal combustion engine |
JPS58173760U (en) * | 1982-05-14 | 1983-11-19 | サンデン株式会社 | Intake bypass control device for gasoline engines for vehicles |
US4586481A (en) * | 1983-09-03 | 1986-05-06 | Honda Giken Kogyo Kabushiki Kaisha | Secondary air supply for internal combustion engine |
US4610236A (en) * | 1983-05-24 | 1986-09-09 | Mazda Motor Corporation | Fuel supply control for a dual induction type engine intake system |
US4641620A (en) * | 1984-08-14 | 1987-02-10 | Mazda Motor Corporation | Fuel injection control means for internal combustion engines |
US8415694B2 (en) | 2000-09-12 | 2013-04-09 | Philips Lumileds Lighting Company Llc | Light emitting devices with improved light extraction efficiency |
-
1978
- 1978-06-27 JP JP7820078A patent/JPS555473A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56148654A (en) * | 1980-04-18 | 1981-11-18 | Toyota Motor Corp | Air-fuel ratio control system of internal combustion engine |
JPS58173760U (en) * | 1982-05-14 | 1983-11-19 | サンデン株式会社 | Intake bypass control device for gasoline engines for vehicles |
US4610236A (en) * | 1983-05-24 | 1986-09-09 | Mazda Motor Corporation | Fuel supply control for a dual induction type engine intake system |
US4586481A (en) * | 1983-09-03 | 1986-05-06 | Honda Giken Kogyo Kabushiki Kaisha | Secondary air supply for internal combustion engine |
US4641620A (en) * | 1984-08-14 | 1987-02-10 | Mazda Motor Corporation | Fuel injection control means for internal combustion engines |
US8415694B2 (en) | 2000-09-12 | 2013-04-09 | Philips Lumileds Lighting Company Llc | Light emitting devices with improved light extraction efficiency |
US8628985B2 (en) | 2000-09-12 | 2014-01-14 | Philips Lumileds Lighting Company Llc | Light emitting devices with improved light extraction efficiency |
US9583683B2 (en) | 2000-09-12 | 2017-02-28 | Lumileds Llc | Light emitting devices with optical elements and bonding layers |
US10312422B2 (en) | 2000-09-12 | 2019-06-04 | Lumileds Llc | Light emitting devices with optical elements and bonding layers |
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