GB524419A - Improvements relating to carburettors for internal combustion engines - Google Patents
Improvements relating to carburettors for internal combustion enginesInfo
- Publication number
- GB524419A GB524419A GB3160/39A GB316039A GB524419A GB 524419 A GB524419 A GB 524419A GB 3160/39 A GB3160/39 A GB 3160/39A GB 316039 A GB316039 A GB 316039A GB 524419 A GB524419 A GB 524419A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- valve
- mixing chamber
- throttle
- main
- 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.)
- Expired
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
-
- 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
- F02M17/02—Floatless carburettors
- F02M17/04—Floatless carburettors having fuel inlet valve controlled by diaphragm
-
- 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
- F02M7/10—Other installations, without moving parts, for influencing fuel/air ratio, e.g. electrical means
- F02M7/11—Altering float-chamber 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
524,419. Spray carburetters. PALLAS APPARATE GES. Jan. 30, 1939, No. 3160. Convention date, Jan. 29, 1938. [Class 7 (iii)] A spray carburetter comprises means for effecting a supplementary regulation of the fuel-air ratio in accordance with altitude changes an auxiliary chamber for supplying a rich mixture to a main mixing chamber, the inlet to or outlet from the auxiliary chamber, or both, being controlled by a regulating member which is adjusted conjointly with a main throttle or set automatically by a pressureresponsive device beyond the main throttle, and a preliminary chamber having an air inlet valve controlled by a barometric device to produce therein a pressure which is a function of the atmospheric pressure, the preliminary chamber supplying air to the auxiliary mixing chamber. A chamber 20 surrounding the air-inlet 1 communicates by a passage 19 with a closed chamber 18 containing an aneroid box 17 which controls a conical valve 16 admitting air to the preliminary chamber 13. A reduction in atmospheric pressure closes the valve 16 to shield the chamber 13 from the full effect of the reduction. The chamber 13 communicates openly with the top of the float chamber or equivalent fuel supply device and through a valve 7 with the auxiliary mixing chamber 4 which is open to the main mixing chamber 3 through a valve 8 connected to the valve 7. A fork 10 links the valves 7, 8 to the main throttle 2. Fuel is drawn into the chamber 4 through a nozzle 11, the' pressure in the chamber 4 being less than that in the float chamber and chamber 13 through its exposure to the main mixing chamber. The suction on the nozzle 11 does not fall as the pressure in the mixing chamber 3 rises with the opening of the throttle 2 since the valve 8 opens correspondingly and communication between the chamber 3 and 4 is freer. As shown in Fig. 4, a diaphragm regulator replaces the float chamber and the valves 7, 8 are actuated by an aneroid box 25 exposed to the mixing chamber 3 instead of by direct connection with the throttle valve 2. In either case, if the carburetter is used with a supercharger, the valve 16 is made of double-conical form to operate in the opposite sense while the supercharger is maintaining a constant input but to operate as described above if the carburetter is working at a height greater than that for which the supercharger can compensate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE524419X | 1938-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB524419A true GB524419A (en) | 1940-08-06 |
Family
ID=6552279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3160/39A Expired GB524419A (en) | 1938-01-29 | 1939-01-30 | Improvements relating to carburettors for internal combustion engines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB524419A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2657913A (en) * | 1948-08-06 | 1953-11-03 | Thompson Prod Inc | Supplementary feed device for internal-combustion engines |
-
1939
- 1939-01-30 GB GB3160/39A patent/GB524419A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2657913A (en) * | 1948-08-06 | 1953-11-03 | Thompson Prod Inc | Supplementary feed device for internal-combustion engines |
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