CN201502452U - Carburetor with air intake compensation structure - Google Patents
Carburetor with air intake compensation structure Download PDFInfo
- Publication number
- CN201502452U CN201502452U CN200920191432XU CN200920191432U CN201502452U CN 201502452 U CN201502452 U CN 201502452U CN 200920191432X U CN200920191432X U CN 200920191432XU CN 200920191432 U CN200920191432 U CN 200920191432U CN 201502452 U CN201502452 U CN 201502452U
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- carburetor
- spindle
- main
- oil
- air inlet
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Abstract
The utility model relates to a carburetor, particularly to a carburetor with an air intake compensation structure, which is mainly used for an internal combustion engine, and aims to provide a carburetor which is capable of adjusting the oil output in a self-adapting manner through automatically adjusting the gap between an oil passage and a spindle according to the variation of air intake pressure. The carburetor adopts the technical scheme as follows: the carburetor is provided with a carburetor main body which is provided with a main oil circuit and an idle speed oil circuit that are respectively communicated with an oil inlet nozzle. The carburetor is characterized in that an air intake compensation mechanism is mounted on the main oil circuit and comprises a spring plate serving as the top of a spindle chamber, a cavity communicated with the air inlet is formed at the upper part of the spring plate, and the lower part thereof is connected with a main spindle matched with the main oil passage via a jacking rod and a leverage.
Description
Technical field
The utility model relates to a kind of Carburetor, particularly a kind of Carburetor that has the air inlet collocation structure.Mainly be applicable to internal-combustion engine.
Background technique
The working principle of Carburetor is when air stream flows through trunnion, in trunnion place generation negative pressure, to cause float
There is a draught head in indoor and outdoor and fuel oil is extruded, and the fuel oil of extrusion forms mixed gas with the air of the trunnion of flowing through, and the discharge of gasoline is by gap aperture between oil duct and spindle and the control of the pressure reduction inside and outside the float chamber in the Carburetor.When the gap aperture between oil duct and spindle became big, gasoline outflow quantitative change was big; When the gap aperture diminished, the gasoline discharge diminished.At present, common Carburetor structurally major defect is: after the gap between Carburetor oil duct and the spindle was once adjusted, before adjusting next time, the gap can not change, and can not change with the change of air inlet pressure.When Carburetor is worked in the Different Altitude position, because at different altitude height, air inlet pressure difference, air inflow can change, the oil pump capacity of Carburetor can not with the air inflow matched well, this caused the Carburetor of adjusting under a certain altitude can not be under other altitude works fine, need readjust the gap between oil duct and spindle.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of simple in structure, Carburetor that has the air inlet collocation structure that can adapt to different altitude height automatically at the problem of above-mentioned existence, under the situation that does not need manual intervention, can adjust the gap between oil duct and spindle according to the variation of air inlet pressure automatically, thereby self adaption adjusts oil mass.
The technological scheme that the utility model adopted is: the Carburetor that has the air inlet collocation structure, has carburetor main body, offer the working connection and the idling oil circuit that are communicated with oil intake nozzle in it respectively, it is characterized in that: the air inlet compensation mechanism is installed on the described working connection, it comprises the shell fragment as top, chamber, spindle chamber, the cavity that is communicated with suction port is offered in this shell fragment top, and the below is connected the main spindle that matches with main oil gallery by push rod successively with leverage.In the practical application, when air inlet pressure increased, the pressure in the cavity increased, shell fragment is deformed, and intermediate portion is recessed down, thereby it is descending to promote push rod, it is up to utilize leverage to drive main spindle, the space between winner's spindle and the main oil gallery is strengthened, thereby strengthened fuel delivery; Otherwise when air inlet pressure reduced, the pressure more indoor than spindle of the pressure in the cavity was little, make the shell fragment intermediate portion upwards recessed, thereby it is up to drive push rod, it is descending to utilize leverage to drive main spindle, space between winner's spindle and the main oil gallery is reduced, thereby reduce fuel delivery.
Described working connection comprises the main oil gallery that connects oil intake nozzle and main oil outlet, and this main oil gallery intermediate section is provided with the spindle chamber, and spindle is indoor establishes the main spindle that an end matches with main oil gallery, the other end is connected with leverage.Oil mass during the normal or high speed of the main supply engine of working connection, fuel oil enters in the main oil gallery by oil intake nozzle, enters the spindle chamber by the space between main spindle and the main oil gallery then, from main oil outlet ejection, mixes with air stream at last.
Described leverage comprises the lever that an end is connected with main spindle, and this lever the other end upper surface contacts with push rod, and lower surface connects vertical with it arm spring, and below, lever middle part is provided with fulcrum.When air inlet pressure increased, the power that shell fragment is suffered reached lever, made lever around a spot wobble, thereby increased the space between main spindle and the main oil gallery; When air inlet pressure reduced, the lever upper surface did not stress, and under the effect of arm spring, lever is swung around fulcrum, and main spindle is descending, thereby reduced the space between main spindle and the main oil gallery.
Described idling oil circuit comprises the idle fuel way that connects oil intake nozzle and idling oil outlet, and idling spindle with matching and idling spindle spring are set on the idle fuel way.Oil mass during the main supply engine low speed of idling oil circuit, fuel oil enters in the idle fuel way by oil intake nozzle, by the space between idling spindle and the idle fuel way and from the ejection of idling oil outlet, mixes with air stream then.
As preferably, spacing spindle with matching and spacing spindle spring are set on the main oil gallery of spindle chamber oil outlet end, excessively increase with aperture moment of avoiding that main spindle causes under air inlet pressure impacts suddenly, make the flow of main fuel-displaced oral pore reasonable.
Described carburetor main body comprises cover plate, dividing plate and the housing that connects successively from top to bottom, and wherein oil intake nozzle is installed on the cover board.
The beneficial effects of the utility model are: the utility model is provided with the air inlet compensation mechanism in working connection, make its oil pump capacity when air inlet pressure changes, carry out under the situation of manual intervention not needing, can adjust the gap between oil duct and spindle automatically, make oil pump capacity and air inflow self adaption mate, form air fuel ratio good mixing gas, thereby improved the performance of Carburetor, make it can be good at being applicable to that unmanned plane works on different altitude height with petrol engine, avoided needing manually to adjust again the complicated process that bring in the gap between spindle and the oil duct because of the air inlet pressure change.
Description of drawings
Fig. 1 is a main sectional view of the present utility model.
Embodiment
As shown in Figure 1, present embodiment has carburetor main body, offer the working connection and the idling oil circuit that are communicated with oil intake nozzle 10 in it respectively, be characterized in installing on the described working connection air inlet compensation mechanism, it comprises the shell fragment 11 as top, Room 19, spindle chamber, the cavity 20 that is communicated with suction port 18 is offered in this shell fragment top, and the below is connected the main spindle 5 that matches with main oil gallery 21 by push rod 14 successively with leverage.
Described working connection comprises the main oil gallery 21 that connects oil intake nozzle 10 and main oil outlet 2, and this main oil gallery intermediate section is provided with spindle chamber 19, establishes the main spindle 5 that an end matches with main oil gallery 21, the other end is connected with leverage in the spindle chamber 19.In this example, described leverage comprises the lever 15 that an end is connected with main spindle 5, and this lever the other end upper surface contacts with push rod 14, and lower surface connects vertical with it arm spring 17, and below, lever 15 middle parts is provided with fulcrum 16.
Described idling oil circuit comprises the idle fuel way 22 that connects oil intake nozzle 10 and idling oil outlet 3, and idling spindle 9 with matching and idling spindle spring 8 are set on the idle fuel way 22, the oil mass during main supply engine low speed.
For aperture moment of avoiding that main spindle 5 causes under air inlet pressure impacts suddenly excessively increases, make the flow of main fuel-displaced oral pore 2 reasonable, spacing spindle 12 with matching and spacing spindle spring 13 are set on the main oil gallery 21 of spindle chamber 19 oil outlet ends.
Described carburetor main body comprises cover plate 7, dividing plate 6 and the housing 4 that connects successively from top to bottom, and wherein oil intake nozzle 10 is installed on the cover plate 7.
The working principle of present embodiment is: because cavity 20 is communicated with suction port 18, when air inlet pressure increases, pressure in the cavity 20 increases, shell fragment 11 is deformed, and intermediate portion is recessed down, thereby it is descending to promote push rod 14, make lever 15 swing around fulcrum 16, it is up to drive main spindle 5, strengthens the space between main spindle 5 and the main oil gallery 21, thereby strengthens the fuel delivery of main oil outlet 2; Otherwise, when air inlet pressure reduces, pressure in the cavity 20 is littler than the pressure in the spindle chamber 19, makes shell fragment 11 intermediate portions upwards recessed, thereby it is up to drive push rod 14, this moment, lever 15 upper surfaces did not stress, under the effect of arm spring 17, lever 15 is swung around fulcrum 16, and main spindle 5 is descending, space between winner's spindle 5 and the main oil gallery 21 is reduced, thereby reduce the fuel delivery of main oil outlet 2.Aperture moment of avoiding by spacing spindle 12 and spacing spindle spring 13 that main spindle 5 causes under air inlet pressure impacts suddenly excessively increases simultaneously, makes the flow of main fuel-displaced oral pore 2 reasonable.Finally make the oil pump capacity of Carburetor when air inlet pressure changes, carry out under the situation of manual intervention not needing, can mate, form air fuel ratio good mixing gas with the air inflow self adaption.
During the work of present embodiment Carburetor,, when air stream flows through Carburetor, mix the formation mixed gas with the gasoline of main oil outlet 2 or 3 ejections of idling oil outlet by the influx of air intake valve 1 control inlet stream.
Claims (6)
1. Carburetor that has the air inlet collocation structure, has carburetor main body, offer the working connection and the idling oil circuit that are communicated with oil intake nozzle (10) in it respectively, it is characterized in that: the air inlet compensation mechanism is installed on the described working connection, it comprises the shell fragment (11) as top, chamber, spindle chamber (19), the cavity (20) that is communicated with suction port (18) is offered in this shell fragment top, and the below is connected the main spindle (5) that matches with main oil gallery (21) by push rod (14) successively with leverage.
2. the Carburetor that has the air inlet collocation structure according to claim 1, it is characterized in that: described working connection comprises the main oil gallery (21) that connects oil intake nozzle (10) and main oil outlet (2), this main oil gallery intermediate section is provided with spindle chamber (19), establishes an end and main oil gallery (21) matches, the other end is connected with leverage main spindle (5) in spindle chamber (19).
3. the Carburetor that has the air inlet collocation structure according to claim 1 and 2, it is characterized in that: described leverage comprises the lever (15) that an end is connected with main spindle (5), this lever the other end upper surface contacts with push rod (14), lower surface connects vertical with it arm spring (17), and below, lever (15) middle part is provided with fulcrum (16).
4. the Carburetor that has the air inlet collocation structure according to claim 1, it is characterized in that: described idling oil circuit comprises the idle fuel way (22) that connects oil intake nozzle (10) and idling oil outlet (3), and idling spindle with matching (9) and idling spindle spring (8) are set on the idle fuel way (22).
5. the Carburetor that has the air inlet collocation structure according to claim 1 and 2 is characterized in that: spacing spindle with matching (12) and spacing spindle spring (13) are set on the main oil gallery (21) of described spindle chamber (19) oil outlet end.
6. the Carburetor that has the air inlet collocation structure according to claim 1 and 2 is characterized in that: described carburetor main body comprises cover plate (7), dividing plate (6) and the housing (4) that connects successively from top to bottom, and wherein oil intake nozzle (10) is installed on the cover plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920191432XU CN201502452U (en) | 2009-08-14 | 2009-08-14 | Carburetor with air intake compensation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920191432XU CN201502452U (en) | 2009-08-14 | 2009-08-14 | Carburetor with air intake compensation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502452U true CN201502452U (en) | 2010-06-09 |
Family
ID=42453386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920191432XU Expired - Fee Related CN201502452U (en) | 2009-08-14 | 2009-08-14 | Carburetor with air intake compensation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014177A (en) * | 2017-05-27 | 2017-08-04 | 赵雅琴 | Dustless test tube baker |
| CN108266288A (en) * | 2018-03-13 | 2018-07-10 | 重庆大江动力设备制造有限公司 | A kind of high altitude localities carburetor arrangement |
-
2009
- 2009-08-14 CN CN200920191432XU patent/CN201502452U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014177A (en) * | 2017-05-27 | 2017-08-04 | 赵雅琴 | Dustless test tube baker |
| CN107014177B (en) * | 2017-05-27 | 2019-05-24 | 王景胜 | Dustless test tube baker |
| CN108266288A (en) * | 2018-03-13 | 2018-07-10 | 重庆大江动力设备制造有限公司 | A kind of high altitude localities carburetor arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20130814 |