JPS551420A - Variable-venturi carburetor - Google Patents
Variable-venturi carburetorInfo
- Publication number
- JPS551420A JPS551420A JP7364478A JP7364478A JPS551420A JP S551420 A JPS551420 A JP S551420A JP 7364478 A JP7364478 A JP 7364478A JP 7364478 A JP7364478 A JP 7364478A JP S551420 A JPS551420 A JP S551420A
- Authority
- JP
- Japan
- Prior art keywords
- venturi
- projection
- variable
- fuel
- injection port
- 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
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
PURPOSE: To raise a fuel suck-out effect in the high load run of an engine and make its air fuel ratio appropriate, by providing the variable venturi member of a variable-venturi carburetor with a projection in front of a fuel injection port.
CONSTITUTION: The rotary variable venturi member 3 is provided in the venturi section 8 of the carburetor 1 and supported by a shaft 4. A venturi passage 6 is provided on the central part of the venturi member 3. The projection 10 having flange portions 11 is provided in the center of the venturi passage 6 so that the projection is located in front of the fuel injection port 5 opened through the venturi section 8. In the high load run of the engine, the quantity of sucked-out fuel is increased by raising the velocity of air flowing between the projection 10 and the injection port 5.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7364478A JPS551420A (en) | 1978-06-16 | 1978-06-16 | Variable-venturi carburetor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7364478A JPS551420A (en) | 1978-06-16 | 1978-06-16 | Variable-venturi carburetor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS551420A true JPS551420A (en) | 1980-01-08 |
Family
ID=13524196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7364478A Pending JPS551420A (en) | 1978-06-16 | 1978-06-16 | Variable-venturi carburetor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS551420A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4292257A (en) * | 1980-01-14 | 1981-09-29 | Knowlton Lloyd L | Carburetor and valving therefor |
US4447371A (en) * | 1982-06-18 | 1984-05-08 | Busch Frank R | Carburetor |
JPS6352978A (en) * | 1986-08-18 | 1988-03-07 | 小林物産株式会社 | Jumbo breaker |
US20120267137A1 (en) * | 2011-04-21 | 2012-10-25 | Briggs & Stratton Corporation | Carburetor system for outdoor power equipment |
US8915231B2 (en) | 2010-03-16 | 2014-12-23 | Briggs & Stratton Corporation | Engine speed control system |
US9316175B2 (en) | 2010-03-16 | 2016-04-19 | Briggs & Stratton Corporation | Variable venturi and zero droop vacuum assist |
-
1978
- 1978-06-16 JP JP7364478A patent/JPS551420A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4292257A (en) * | 1980-01-14 | 1981-09-29 | Knowlton Lloyd L | Carburetor and valving therefor |
US4447371A (en) * | 1982-06-18 | 1984-05-08 | Busch Frank R | Carburetor |
JPS6352978A (en) * | 1986-08-18 | 1988-03-07 | 小林物産株式会社 | Jumbo breaker |
US8915231B2 (en) | 2010-03-16 | 2014-12-23 | Briggs & Stratton Corporation | Engine speed control system |
US9316175B2 (en) | 2010-03-16 | 2016-04-19 | Briggs & Stratton Corporation | Variable venturi and zero droop vacuum assist |
US20120267137A1 (en) * | 2011-04-21 | 2012-10-25 | Briggs & Stratton Corporation | Carburetor system for outdoor power equipment |
US8910616B2 (en) * | 2011-04-21 | 2014-12-16 | Briggs & Stratton Corporation | Carburetor system for outdoor power equipment |
US9598828B2 (en) | 2011-04-21 | 2017-03-21 | Briggs & Stratton Corporation | Snowthrower including power boost system |
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