JPS5781148A - Variable venturi carburetor - Google Patents
Variable venturi carburetorInfo
- Publication number
- JPS5781148A JPS5781148A JP55157045A JP15704580A JPS5781148A JP S5781148 A JPS5781148 A JP S5781148A JP 55157045 A JP55157045 A JP 55157045A JP 15704580 A JP15704580 A JP 15704580A JP S5781148 A JPS5781148 A JP S5781148A
- Authority
- JP
- Japan
- Prior art keywords
- jet
- bleed
- needle
- variable venturi
- path
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
- F02M7/14—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle
- F02M7/16—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle operated automatically, e.g. dependent on exhaust-gas analysis
- F02M7/17—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle operated automatically, e.g. dependent on exhaust-gas analysis by a pneumatically adjustable piston-like element, e.g. constant depression carburettors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
- F02M17/08—Carburettors having one or more fuel passages opening in a valve-seat surrounding combustion-air passage, the valve being opened by passing air
- F02M17/09—Carburettors having one or more fuel passages opening in a valve-seat surrounding combustion-air passage, the valve being opened by passing air the valve being of an eccentrically mounted butterfly type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
- F02M19/06—Other details of fuel conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/23—Fuel aerating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/23—Fuel aerating devices
- F02M7/24—Controlling flow of aerating air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/23—Fuel aerating devices
- F02M7/24—Controlling flow of aerating air
- F02M7/26—Controlling flow of aerating air dependent on position of optionally operable throttle means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/23—Fuel aerating devices
- F02M7/24—Controlling flow of aerating air
- F02M7/28—Controlling flow of aerating air dependent on temperature or pressure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
PURPOSE: To smooth air-to-fuel ratio at the time of full operation in such a way that bleed holes are made on the side of metering needle sliding contact of a variable Venturi carburetor.
CONSTITUTION: A suction piston 1 of a variable Venturi carburetor 6 is slid orthogonally to an air inlet path 16 in vertical direction. At the same time as a metering needle 2 which moves forward and backward in a metering jet 3' and adjusts fuel feeding rate is fixed at the tip of a piston 1, the needle 2 constantly slides and contacts the bottom wall of the jet 3'. Besides, a ring- shaped path 26 which is communicated to an air bleed path 4 is formed on the outer periphery of the jet 3', further it comes through the ring-shaped path 26 to the inside of the jet 3', and a plurality of bleed holes 5 are made. Therefore, in proportion to the position of the needle 2 opening area of each bleed hole 5 is varied, and its bleed rate is automatically adjusted.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55157045A JPS5781148A (en) | 1980-11-10 | 1980-11-10 | Variable venturi carburetor |
DE3143395A DE3143395C2 (en) | 1980-11-10 | 1981-11-02 | Constant pressure carburettor |
GB8133748A GB2086988B (en) | 1980-11-10 | 1981-11-09 | Variable venturi carburetor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55157045A JPS5781148A (en) | 1980-11-10 | 1980-11-10 | Variable venturi carburetor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5781148A true JPS5781148A (en) | 1982-05-21 |
Family
ID=15640985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55157045A Pending JPS5781148A (en) | 1980-11-10 | 1980-11-10 | Variable venturi carburetor |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5781148A (en) |
DE (1) | DE3143395C2 (en) |
GB (1) | GB2086988B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59120765A (en) * | 1983-07-08 | 1984-07-12 | Keiun Kodo | Air bleed device |
US4484557A (en) * | 1981-07-13 | 1984-11-27 | Asian Kogyo Kabushiki Kaisha | Variable venturi carburetor |
JPS615354U (en) * | 1984-06-15 | 1986-01-13 | 株式会社 日本気化器製作所 | electronically controlled vaporizer |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58200066A (en) * | 1982-05-18 | 1983-11-21 | Toyota Motor Corp | Air-fuel ratio control device for variable venturi type carburettor |
JPS597723A (en) * | 1982-07-07 | 1984-01-14 | Toyota Motor Corp | Exhaust gas purifier of internal-combustion engine |
DE3337261A1 (en) * | 1983-10-13 | 1985-05-02 | Atlas Fahrzeugtechnik GmbH, 5980 Werdohl | CARBURETTOR FOR AN OTTO ENGINE |
JPH08226353A (en) * | 1995-02-21 | 1996-09-03 | Teikei Kikaki Kk | Carburetor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54133233A (en) * | 1978-04-07 | 1979-10-16 | Automob Antipollut & Saf Res Center | Variable venturi type carburettor |
JPS5557649A (en) * | 1978-10-20 | 1980-04-28 | Toyota Motor Corp | Variable venturi carburetor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1300577A (en) * | 1969-07-22 | 1972-12-20 | Zenith Carburetter Company Ltd | Improvements in or relating to carburetters |
-
1980
- 1980-11-10 JP JP55157045A patent/JPS5781148A/en active Pending
-
1981
- 1981-11-02 DE DE3143395A patent/DE3143395C2/en not_active Expired
- 1981-11-09 GB GB8133748A patent/GB2086988B/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54133233A (en) * | 1978-04-07 | 1979-10-16 | Automob Antipollut & Saf Res Center | Variable venturi type carburettor |
JPS5557649A (en) * | 1978-10-20 | 1980-04-28 | Toyota Motor Corp | Variable venturi carburetor |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4484557A (en) * | 1981-07-13 | 1984-11-27 | Asian Kogyo Kabushiki Kaisha | Variable venturi carburetor |
JPS59120765A (en) * | 1983-07-08 | 1984-07-12 | Keiun Kodo | Air bleed device |
JPH0240862B2 (en) * | 1983-07-08 | 1990-09-13 | Keiun Kodo | |
JPS615354U (en) * | 1984-06-15 | 1986-01-13 | 株式会社 日本気化器製作所 | electronically controlled vaporizer |
Also Published As
Publication number | Publication date |
---|---|
DE3143395A1 (en) | 1982-06-16 |
GB2086988B (en) | 1985-02-27 |
GB2086988A (en) | 1982-05-19 |
DE3143395C2 (en) | 1986-03-20 |
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