CN201671727U - Diaphragm type carburetor with function of eliminating impulse chamber fuel oil accumulation - Google Patents
Diaphragm type carburetor with function of eliminating impulse chamber fuel oil accumulation Download PDFInfo
- Publication number
- CN201671727U CN201671727U CN2010202033312U CN201020203331U CN201671727U CN 201671727 U CN201671727 U CN 201671727U CN 2010202033312 U CN2010202033312 U CN 2010202033312U CN 201020203331 U CN201020203331 U CN 201020203331U CN 201671727 U CN201671727 U CN 201671727U
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- carburetor
- impulse chamber
- fuel oil
- air vent
- described air
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Abstract
The utility model relates to a diaphragm type carburetor, in particular to a diaphragm type carburetor with a function of eliminating impulse chamber fuel oil accumulation, comprising a carburetor body taken as the main body part of the carburetor, a plunger, a main spray tube, a pneumatic drive pump, and an air inlet cavity, a mixing room, an impulse chamber and an air passage which are arranged on the body, wherein the air passage is positioned between the air inlet cavity and the impulse chamber and leads the air inlet cavity and the impulse chamber to be communicated with each other; and air can enter the impulse chamber through the air passage and take the fuel oil in the impulse chamber away, thus improving the oil supply stability of the carburetor on an engine and avoiding engine idling instability or fluctuation.
Description
Technical field
The utility model relates to a kind of diaphragm carburetor, relates to a kind of diaphragm carburetor of eliminating impulse chamber fuel oil accumulation function that has more specifically.
Background technique
Along with the continuous lifting of continuous progress in science and technology and industrial level,, the general gasoline engines industry provides a good platform for further developing.Wherein, general gasoline engines industry flourish, thus promote the auxiliary industry develop rapidly of general gasoline engines.Correspondingly, the Carburetor industry is exactly a kind of of the auxiliary industry of many general gasoline engines.
Carburetor is exactly with the fuel oil of some and air mixing, so that normal working of engine, thereby prevent that motor from not making engine stoping operation having to be in " oil-poor " operating condition under enough fuel oils and the air mixing situation or be damaged, thus make start function more reliable, more safely work.Meanwhile; Carburetor is also monitored excessive fuel oil and air mixing; prevent motor under " rich oil " state, turning round and make engine stoping operation, when running produce a large amount of cigarettes, operational situation is abominable or the waste fuel oil, thereby guarantee the ratio between blended fuel oil and the air.Therefore, the Carburetor that chooses is one of key factor of maintenance, maintenance and performance engine performance.
At present, though the Carburetor on the market is of a great variety, its structure is different, and all Carburetors include the Carburetor body and are arranged at main oil supplying device, idling oil supplying device, starting arrangement and oil inlet pipe interface etc. on the Carburetor body.And for the rotary valve-type diaphragm carburetor, main oil supplying device comprises plunger, swing frame, main jet pipe, trunnion, main jet or main jet adjusting spindle.The idling oil supplying device comprises main metering pin, main metering pin cover and elastic element.Elastic element is arranged between main metering pin and the main metering pin cover.Main metering pin is installed in the inwall of main metering pin cover, the outer wall that the main metering pin cover of main metering pin has been installed is fixed on the inwall of plunger, an end that has assembled the main metering pin and the plunger of main metering pin cover is connected with the Carburetor body is rotatable, and the other end of plunger extends Carburetor this is external and fixedly connected with swing frame, and offers on the swing frame for the backguy piece that is connected with anchoring.
Air enters Carburetor by air-inlet cavity, by plunger, arrives mixing chamber.When regulating throttle, the rotation of swing frame can drive the rotation of plunger, the plunger of rotation change its with the Carburetor body between relative position and reach the amount that adjusting enters the air of Carburetor.The pneumatic pump of Carburetor produces negative pressure, and the fuel oil in the fuel tank is sucked measuring room, enters the main jet pipe through oil channel (not drawing among the figure) again.Fuel oil arrives mixing chamber by the openings of sizes between the triangle on main metering pin and the main jet pipe.Therefore, by regulating the height of main metering pin, can control the amount of the gasoline that enters mixing chamber.The mixture of air and fuel oil enters after the mixing chamber, and the part fuel oil can be attached on the wall of mixing chamber, and flows down, and enters impulse chamber, and piles up in impulse chamber.Fuel oil in the pileup pulse chamber under certain conditions, can enter mixing chamber again, thereby the feasible measurer that enters the fuel oil of mixing chamber has certain unstability, and is sometimes many, sometimes few, influences the particularly idle stability of motor.
Summary of the invention
The purpose of this utility model is to provide a kind of approach of economy, realizing a kind ofly can eliminating the diaphragm carburetor that the impulse chamber fuel oil is piled up function, and finally improve motor idle stability, improve the performance of motor.
For achieving the above object, the utility model realized a kind of like this have eliminate the diaphragm carburetor that the impulse chamber fuel oil is piled up function, it comprises: as Carburetor body and plunger, main jet pipe, the pneumatic pump of carburetor main body portion, be arranged at air-inlet cavity, mixing chamber, impulse chamber, air vent on the described body.Described air vent and is communicated with described air-inlet cavity and described impulse chamber between described air-inlet cavity and described impulse chamber.
Preferably, described air vent is shaped as cylindrical channel.
Preferably, the cross sectional area of described air vent is 0.01mm
2To 100mm
2
Preferably, the cross sectional area of described air vent is 0.1256mm
2
Preferably, the quantity of described air vent is 1 to 20.
Preferably, the quantity of described air vent is 1.
The beneficial effects of the utility model are:
Described air vent and is communicated with described air-inlet cavity and described impulse chamber between described air-inlet cavity and described impulse chamber, therefore, air can enter described impulse chamber by described air vent, and takes away the fuel oil that is deposited in described impulse chamber the inside.Thereby improve Carburetor to the fuel feeding stability of motor and avoid the unstable or fluctuation of engine idle.
Described air vent be shaped as cylindrical channel, make more convenient to the processing of described air vent.Adopt and technology such as to bore, to mill and to process described passage eaily.
The cross sectional area of described air vent is less than 0.01mm
2The time, its difficulty of processing is very big, makes economic cost very big; Cross sectional area is greater than 100mm
2The time, cause pressure release effect easily, thereby make described Carburetor lose the function that it carries fuel oil described Carburetor.When the diameter of described air vent was 0.4mm, the cross sectional area of described air vent was 0.1256mm
2
The quantity of described air vent can be complementary according to the function of Carburetor.
Description of drawings
Fig. 1 is a complete section structural representation of the present utility model.
Among the figure: 10 main jet pipes, 11 pulse tracting pressuring holes, 12 mixing chambers, 13 fixed plates, 14 main metering pins, 15 swing frames, 16 seal rings, 17 air-inlet cavitys, 18 plungers, 19 air vents, 20 impulse chamber, 21 pneumatic pumps, 22 bodies.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, but does not constitute any restriction of the present utility model.
Fig. 1 is a complete section structural representation of the present utility model.
A kind of have eliminate the diaphragm carburetor that the impulse chamber fuel oil is piled up function, it comprises: as Carburetor body 22 and plunger 18, main jet pipe 10, the pneumatic pump 21 of carburetor main body portion, be arranged at air-inlet cavity 17, mixing chamber 12, impulse chamber 20, pulse tracting pressuring hole 11, air vent 19 on the described body 22.Described air vent 19 and is communicated with described air-inlet cavity 17 and described impulse chamber 20 between described air-inlet cavity 17 and described impulse chamber 20.Described air vent 19 be shaped as cylindrical channel.
Air enters Carburetor by air-inlet cavity 17, by plunger 18, arrives mixing chamber 12.When regulating throttle, the rotation of swing frame 15 can drive the rotation of plunger 18, the plunger 18 of rotation change its with Carburetor body 22 between relative position and reach the amount that adjusting enters the air of Carburetor.The pneumatic pump 21 of Carburetor produces negative pressure, and the fuel oil in the fuel tank is sucked 25 li of measuring rooms, enters main jet pipe 10 by oil duct (not drawing among the figure) again.Fuel oil arrives mixing chamber 12 by the triangle open mouth on the main jet pipe 10.Therefore, by regulating the height of main metering pin 14, can control the amount of the gasoline that enters mixing chamber 12.The mixture of air and fuel oil enters after the mixing chamber 12, and the part fuel oil can be attached on the wall of mixing chamber 12, and enters impulse chamber 20, and piles up in impulse chamber 20.If there is not air vent 19, the fuel oil in the pileup pulse chamber 20, under certain conditions, can enter mixing chamber 12 again, thereby the feasible measurer that enters the fuel oil of mixing chamber 12 there is certain unstability, sometimes many, sometimes few, influence the particularly idle stability of motor.
Described air vent 19 is between described air-inlet cavity 17 and described impulse chamber 20, and be communicated with described air-inlet cavity 17 and described impulse chamber 20, therefore, air can enter described impulse chamber 20 by described air vent 19, and takes away the fuel oil that is deposited in described impulse chamber 20 the insides.Thereby improve Carburetor to the fuel feeding stability of motor and avoid the engine idle shakiness or the idling fluctuation.
At last, should be pointed out that above embodiment only is the more representational example of the utility model.Obviously, the utility model is not limited to the foregoing description, and many distortion can also be arranged.Every foundation technical spirit of the present utility model all should be thought to belong to protection domain of the present utility model to any simple modification, equivalent variations and modification that above embodiment did.
Claims (6)
1. one kind has the diaphragm carburetor of eliminating impulse chamber fuel oil accumulation function, it comprises: as Carburetor body (22) and plunger (18), main jet pipe (10), the pneumatic pump (21) of carburetor main body portion, be arranged at air-inlet cavity (17), mixing chamber (12), impulse chamber (20) on the described body (22), it is characterized in that: described Carburetor also comprises air vent (19), described air vent (19) is positioned between described air-inlet cavity (17) and the described impulse chamber (20), and is communicated with described air-inlet cavity (17) and described impulse chamber (20).
2. Carburetor according to claim 1 is characterized in that: described air vent (19) be shaped as cylindrical channel.
3. Carburetor according to claim 1 is characterized in that: the cross sectional area of described air vent (19) is 0.01mm
2To 100mm
2
4. according to claim 1 or 3 described Carburetors, it is characterized in that: the cross sectional area of described air vent (19) is 0.1256mm
2
5. Carburetor according to claim 1 is characterized in that: the quantity of described air vent (19) is 1 to 20.
6. Carburetor according to claim 1 or 5, it is characterized in that: the quantity of described air vent (19) is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202033312U CN201671727U (en) | 2010-05-12 | 2010-05-12 | Diaphragm type carburetor with function of eliminating impulse chamber fuel oil accumulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202033312U CN201671727U (en) | 2010-05-12 | 2010-05-12 | Diaphragm type carburetor with function of eliminating impulse chamber fuel oil accumulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671727U true CN201671727U (en) | 2010-12-15 |
Family
ID=43329139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202033312U Expired - Lifetime CN201671727U (en) | 2010-05-12 | 2010-05-12 | Diaphragm type carburetor with function of eliminating impulse chamber fuel oil accumulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671727U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047050A (en) * | 2013-01-04 | 2013-04-17 | 浙江瑞星化油器制造有限公司 | Pulse generator for one-step-start carburetor |
| WO2014131321A1 (en) * | 2013-02-26 | 2014-09-04 | 苏州科瓴精密机械科技有限公司 | Carburetor base of engine |
| CN106523191A (en) * | 2016-08-24 | 2017-03-22 | 福建省福鼎市金星通用机化油器有限公司 | Plastic carburetor |
| CN109826726A (en) * | 2019-03-28 | 2019-05-31 | 福建华龙化油器有限公司 | A kind of rotary valve diaphragm type carburator |
| CN112343738A (en) * | 2020-09-07 | 2021-02-09 | 浙江瑞星化油器制造有限公司 | Diaphragm type carburetor suitable for high temperature state |
-
2010
- 2010-05-12 CN CN2010202033312U patent/CN201671727U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047050A (en) * | 2013-01-04 | 2013-04-17 | 浙江瑞星化油器制造有限公司 | Pulse generator for one-step-start carburetor |
| WO2014131321A1 (en) * | 2013-02-26 | 2014-09-04 | 苏州科瓴精密机械科技有限公司 | Carburetor base of engine |
| US9850851B2 (en) | 2013-02-26 | 2017-12-26 | Suzhou Cleva Precision Machinery & Technology Co., Ltd. | Carburetor base of engine |
| CN106523191A (en) * | 2016-08-24 | 2017-03-22 | 福建省福鼎市金星通用机化油器有限公司 | Plastic carburetor |
| CN106523191B (en) * | 2016-08-24 | 2018-12-21 | 福建省福鼎市金星通用机化油器有限公司 | A kind of plastics carburetor |
| CN109826726A (en) * | 2019-03-28 | 2019-05-31 | 福建华龙化油器有限公司 | A kind of rotary valve diaphragm type carburator |
| CN112343738A (en) * | 2020-09-07 | 2021-02-09 | 浙江瑞星化油器制造有限公司 | Diaphragm type carburetor suitable for high temperature state |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |