CN108266288A - A kind of high altitude localities carburetor arrangement - Google Patents
A kind of high altitude localities carburetor arrangement Download PDFInfo
- Publication number
- CN108266288A CN108266288A CN201810202454.5A CN201810202454A CN108266288A CN 108266288 A CN108266288 A CN 108266288A CN 201810202454 A CN201810202454 A CN 201810202454A CN 108266288 A CN108266288 A CN 108266288A
- Authority
- CN
- China
- Prior art keywords
- valve
- needle
- float chamber
- high altitude
- carburetor
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- 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.)
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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
- F02M7/18—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel-metering orifice
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- 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
In order to solve the problems, such as that carburetor engine power in high altitude localities is affected, the present invention provides a kind of high altitude localities carburetor arrangements, including carburetor body, carburetor body includes float chamber and float chamber cover, main jet is provided in float chamber, setting is raised on the inside of float cover, has channel in protrusion, solenoid valve is provided on the outside of float chamber cover, solenoid valve is connected with the first needle-valve；Channel side wall is provided with fuel feed hole, and float chamber cover also sets up opening, further includes fuel oil regulating device, and fuel oil regulating device includes needle-valve portion, and needle-valve portion includes the second needle-valve, and the second needle-valve matches with fuel feed hole；Second needle-valve end is provided with valve deck.The oil inlet quantity that can quickly control main jet total by solenoid valve, adjust the relative position of the second needle-valve and fuel feed hole, control the oil inlet quantity of main jet, second needle-valve end is provided with valve deck, can the second needle-valve and oil inlet hole site accurately be adjusted according to rarefaction of air degree, so as to make the air-fuel ratio of engine best.
Description
Technical field
The present invention relates to Manufacturing Technology for Carburetors field more particularly to a kind of high altitude localities carburetor arrangements.
Background technology
Carburetor is the machinery that mixes a certain proportion of gasoline with air under the vacuum action generated in engine work
Device.For carburetor as a kind of mechanical device of precision, it realizes the atomization of gasoline using the kinetic energy for sucking air stream.It is right
The important function of engine can be referred to as " heart " of engine.Its complete device should include starting device, idling device,
Moderate duty device, full load device, accelerator.Carburetor can automatically be matched according to the different working condition demand of engine
Than going out corresponding concentration, the gaseous mixture measured accordingly is exported, in order to make the ratio that the gaseous mixture allotted mixes more uniform, carburetor is also
Having makes the effect of fuel-oil atmozation, for machine normal operation.
Existing carburetor is generally by solenoid valve control, such as 204532579 U of China Patent Publication No. CN are announced
The oil inlet construction of switch of carburetor in a kind of oil gas engine, quick oil-break or confession when realizing oil-gas switch using solenoid valve control
The characteristics of oily；But when engine is located at high altitude localities, requirement of the different height above sea levels to carburetor be also it is different, because
For the thin anoxic in height above sea level upper zone air relative elevation lower region, if by above-mentioned carburetor for High aititude region, by
Enter in air less, and oil mass flow is constant, and for air, oil mass becomes more, then air and oil mass cannot reach compared with
Good mixing ratio, the power of engine are affected, and fuel oil expends greatly, and clutch can be even worn when serious.Therefore, it is necessary to right
Existing carburetor is improved, it is made the flow of main jet can be adjusted according to different applying working conditions and region, is protected
Card fuel oil can keep preferable mixed proportion from air under different service conditions, can also quickly control total oil inlet in addition
Amount.
Invention content
In order to solve the problems, such as that existing carburetor engine power in high altitude localities is affected, the present invention provides
A kind of high altitude localities carburetor arrangement, can its purpose is to provide the fuel flow in different its main jet of using area
It adjusts, so as to which the mixed steam for making supply engine can accurately be adjusted by air-fuel ratio, and can quickly control total oil inlet
Amount.
The invention is realized in this way：A kind of high altitude localities carburetor arrangement, including carburetor body, carburetor body
Including float chamber and float chamber cover, main jet is provided in float chamber, protrusion is provided on the inside of float cover, is provided in protrusion logical
Road, float chamber cover outside are fixedly installed solenoid valve, and solenoid valve output terminal, which is extended in channel, is connected with the first needle-valve, and first
Needle-valve offsets with main jet matches；The channel side wall is provided with fuel feed hole, and float chamber cover is additionally provided with corresponding with fuel feed hole
Opening further includes fuel oil regulating device, and fuel oil regulating device includes needle-valve portion, and the needle-valve portion includes the second needle-valve, the second needle
The front end of valve matches with fuel feed hole；The end of second needle-valve passes through the end of opening and the second needle-valve to be provided with valve deck.
Further, the front end of second needle-valve is provided with the valve point of taper, and valve point matches with fuel feed hole, and second
Needle-valve is disposed with valve point, adjustment portion, sealing, transition part and connecting portion from front to back, and the connecting portion is in the second needle
The end of valve, connecting portion are connect with valve deck.
Further, the adjustment portion is provided with external screw thread, and the opening is provided with what is matched with adjustment portion external screw thread
Internal thread.
Further, the sealing includes the sealing ring being socketed with the second needle-valve.
Further, the connecting portion is provided with the shaft shoulder, and shaft shoulder outer is arranged in parallel with two along the second needle-valve axis direction
A or more than two grooves.
Further, the transition part has further included buffer spring, and buffer spring one end is connected to float chamber cover, the other end
It is connected to the shaft shoulder.
Further, the valve deck is provided with mark part.
Further, the valve deck is additionally provided with limiting section.
It is of the invention in use, the oil inlet quantity that can quickly control main jet total by solenoid valve, for the ease of adapting to not
Oil inlet quantity is adjusted with height above sea level, adjusts the relative position of the second needle-valve front end and fuel feed hole, and then control main jet
Oil inlet quantity, reduce oil inlet quantity when rarefaction of air, for the ease of accurately controlling, the end of the second needle-valve be provided with valve deck,
Can the second needle-valve and oil inlet hole site can accurately be adjusted, so as to make engine according to rarefaction of air degree or poster height
Air-fuel ratio it is best.
Description of the drawings
Fig. 1 is a kind of high altitude localities carburetor arrangement schematic front view of the embodiment of the present invention；
Fig. 2 is a kind of high altitude localities carburetor arrangement A-A schematic diagrames of the embodiment of the present invention；
Fig. 3 is a kind of high altitude localities carburetor arrangement needle-valve portion stereoscopic schematic diagram of the embodiment of the present invention；
Fig. 4 is a kind of high altitude localities carburetor arrangement valve deck stereoscopic schematic diagram of the embodiment of the present invention；
Fig. 5 is a kind of another stereoscopic schematic diagram of high altitude localities carburetor arrangement valve deck of the embodiment of the present invention；
In figure：1 carburetor body, 2 float chamber covers, 201 protrusions, 202 channels, 3 valve decks, 301 mark parts, 302 limiting sections, 4 into
Oilhole, 5 needle-valve portions, 501 valves point, 502 adjustment portions, 503 sealings, 504 transition parts, 505 shaft shoulders, 506 platforms, 507 buffering elastics
Spring, 6 sealing rings, 7 main jets, 8 solenoid valves, 801 first needle-valves.
Specific embodiment
The present invention is in specifically used, as shown in Figs 1-4, a kind of high altitude localities carburetor arrangement, including carburetor sheet
Body 1, carburetor body include float chamber and float chamber cover 2, and main jet 7 is provided in float chamber, and 2 inside of float cover is provided with convex
201 are played, channel 202 is provided in protrusion 201,2 outside of float chamber cover is fixedly installed solenoid valve 8, the extension of 8 output terminal of solenoid valve
The first needle-valve 801 is connected in channel 202, and the first needle-valve 801 offsets with main jet 7 and matches；202 side wall of channel be provided with into
Oilhole 4, float chamber cover 2 be additionally provided with 4 corresponding opening of fuel feed hole, further include fuel oil regulating device, fuel oil regulating device
Including needle-valve portion 5, the needle-valve portion 5 includes the second needle-valve, and front end and the fuel feed hole 4 of the second needle-valve match；Second needle-valve
End passes through the end of opening and the second needle-valve to be provided with valve deck 3.It is of the invention in use, in order to facilitate the installation of and convenient for close
Envelope, 2 inside of float cover are provided with protrusion 201, and channel 202 is provided in protrusion 201, and channel 202 is interior to pass through entrance convenient for fuel oil
Main jet 7 is acted by solenoid valve 8 and drives the first needle-valve 801, matched since the first needle-valve 801 offsets with main jet 7, controls the
The relative gap of one needle-valve 801 and main jet 7, and then 7 total oil inlet quantity of main jet can be controlled；In use, it is filled in float chamber
Full fuel oil passes through for the ease of adjustment oil inlet quantity and fuel oil, and channel side wall is provided with fuel feed hole 4, float chamber cover 2 be additionally provided with
4 corresponding opening of fuel feed hole, opening is provided with the second needle-valve, and the front end of the second needle-valve matches with fuel feed hole 4；According to
The difference of height above sea level, adjusts the second needle-valve front end and the relative position of fuel feed hole 4, and fuel oil passes through the second needle-valve and fuel feed hole 4
Gap enter in channel and then combustion chambers burn entered by the gap of the first needle-valve 801 and main jet 7, reached control master
The effect of 7 oil inlet quantity of metering-orifice reduces oil inlet quantity when rarefaction of air, i.e. gap between the second needle-valve and fuel feed hole 4 is reduced, empty
Increase oil mass when gas is dense；For the convenience of adjusting, float chamber cover 2 is additionally provided with and 4 corresponding opening of fuel feed hole, opening axis
Identical with 4 axis of fuel feed hole, the second needle-valve passes through opening and can be moved forward and backward along opening, big to reach adjusting oil inlet quantity
Small effect；For the ease of accurately controlling, the end of the second needle-valve is provided with valve deck 3, it can be according to rarefaction of air degree or sea
Degree of offering a high price can accurately adjust the second needle-valve and 4 position of fuel feed hole, so as to make the air-fuel ratio of engine best.
In addition, the present invention in same height above sea level in application, be readily applicable to different operating modes in use, due to operating mode
Difference causes the air-fuel ratio of engine different, and then the position by adjusting the second needle-valve and fuel feed hole 4, and engine is allowed to make
With best air-fuel ratio can be always maintained in the process.
Further, for the convenience of adjusting, can accurately control, in the present embodiment, the front end setting band of the second needle-valve
Tapered valve point 501, valve point 501 match with fuel feed hole 4, i.e., the second needle-valve front end is set as cone, and fuel feed hole 4 is set
There is the conical support to match with the second needle-valve cone, by adjusting 4 conical support of the second needle-valve front end cone and fuel feed hole
Relative position, the gap size that can be convenient between the second needle-valve of control and fuel feed hole 4；In addition, it connects for convenience, the second needle
Valve is disposed with valve point 501, adjustment portion 502, sealing 503, transition part 504 and connecting portion, the connecting portion from front to back
Positioned at the end of the second needle-valve, connecting portion is connect with valve deck 3.
Further, in order to improve the accuracy of the second needle-valve adjusting, in the present embodiment by the way of screw thread rotation
Accurately control the relative position of the second needle-valve and fuel feed hole 4, i.e. adjustment portion 502 is provided with external screw thread, the opening be provided with
The internal thread that 502 external screw thread of adjustment portion matches.By external screw thread and the rotatable engagement of internal thread, and then control the second needle-valve
Position achievees the effect that control oil inlet quantity.
Further, the indoor fuel leakage of float in order to prevent, in the present embodiment, sealing 503 includes and second
The sealing ring 6 of needle-valve socket, in the externally threaded rear end of the second needle-valve, is provided with axle journal, sealing ring 6 is socketed on axle journal, seals
It encloses 6 outer walls and contacts at float chamber cover 2 and be open, also have sealing effect by the cooperation of aforementioned internal and external threads in the present embodiment, in addition again
It is sealed using sealing ring 6, sealing effect is more preferably.
Further, for the ease of accurately adjusting, in the present embodiment, connecting portion is provided with the shaft shoulder 505, outside the shaft shoulder 505
Two or more grooves, the card by way of interference fit of valve deck 3 are arranged in parallel with along the second needle-valve axis direction
It closes on groove, rotate valve deck 3 and then drives the rotation of the second needle-valve, so as to change between the second needle-valve valve point 501 and fuel feed hole 4
Gap amount；In addition, in the present embodiment, the second needle-valve end is additionally provided with platform 506, valve deck 3 again by interference fit side
Formula also engages with platform 506, by rotatable platform 506, the second needle-valve can also be driven to rotate, so as to change the second needle-valve valve point
501 with the gap value of fuel feed hole 4.
Further, in order to accurately control, the second needle during adjusting or during engine use is prevented
There is vibration or loosening in valve, and transition part 504 has further included buffer spring 507 in the present embodiment, and 507 one end of buffer spring abuts
In float chamber cover 2, the other end is connected to the shaft shoulder 505.
Further, it adjusts and identifies for convenience, in the present embodiment, valve deck 3 is provided with mark part 301, this implementation
Example, as mark, while is provided on float chamber cover 2 and 301 corresponding scale area of mark part, different seas using arrow
The scale value that the area's arrow that rises sheer from level ground is directed toward scale area is different, easy to use, in practical applications, after clear and definite height above sea level, it is only necessary to
The second needle-valve is rotated, arrow direction is allowed to be directed toward corresponding scale value, that is, controls the gap between the second needle-valve and fuel feed hole 4,
And then having reached makes engine keep the oil inlet quantity needed for best air-fuel ratio.
Further, in order to control to adjust amplitude, the relative position of operating personnel's mistuning markingoff pin valve portion 5 is prevented, in this reality
It applies float chamber cover 2 in example and is provided with protrusion, scale area is arranged in protrusion, and valve deck 3 is additionally provided with limiting section 302, for convenience
Manufacture, reduces cost, and the limiting section 302 in the present embodiment is two stop blocks that 3 bottom of valve deck is extended, two stop blocks it
Between distance be more than 2 ledge width of float chamber cover；In specifically used, after valve deck 3 fastens, two stop blocks are located at float chamber cover
The both sides of 2 protrusions since the distance between two stop blocks are more than 2 ledge width of float chamber cover, do not influence to adjust by needle-valve portion 5
Oil inlet quantity is saved, while can also limit the amplitude that operating personnel adjust the second needle-valve, prevents operating personnel's maloperation.
Although giving detailed description and explanation to the specific embodiment of the present invention above, it should be noted that
We can be according to the present invention conception various equivalent changes and modification are carried out to the above embodiment, generated function is made
It, should all be within protection scope of the present invention during with the spirit still covered without departing from specification and attached drawing.
Claims (8)
1. a kind of high altitude localities carburetor arrangement, including carburetor body, carburetor body includes float chamber and float chamber cover,
It is characterized in that, being provided with main jet in float chamber, protrusion is provided on the inside of float cover, channel, float chamber are provided in protrusion
Outer side of lid is fixedly installed solenoid valve, and solenoid valve output terminal, which is extended in channel, is connected with the first needle-valve, and the first needle-valve and master
Metering-orifice, which offsets, matches；The channel side wall is provided with fuel feed hole, float chamber cover be additionally provided with the corresponding opening of fuel feed hole, also wrap
Include fuel oil regulating device, fuel oil regulating device includes needle-valve portion, and the needle-valve portion includes the second needle-valve, the front end of the second needle-valve with
Fuel feed hole matches；The end of second needle-valve passes through the end of opening and the second needle-valve to be provided with valve deck.
2. high altitude localities carburetor arrangement according to claim 1, which is characterized in that the front end of second needle-valve is set
It puts with tapered valve point, valve point matches with fuel feed hole, and the second needle-valve is disposed with valve point, adjustment portion, close from front to back
Envelope portion, transition part and connecting portion, the connecting portion are connect in the end of the second needle-valve, connecting portion with valve deck.
3. high altitude localities carburetor arrangement according to claim 2, which is characterized in that the adjustment portion is provided with outer spiral shell
Line, the opening are provided with the internal thread to match with adjustment portion external screw thread.
4. the high altitude localities carburetor arrangement according to Claims 2 or 3, which is characterized in that the sealing include with
The sealing ring of second needle-valve socket.
5. high altitude localities carburetor arrangement according to claim 4, which is characterized in that the connecting portion is provided with axis
Shoulder, shaft shoulder outer are arranged in parallel with two or more grooves along the second needle-valve axis direction.
6. high altitude localities carburetor arrangement according to claim 5, which is characterized in that the transition part has further included slow
Spring is rushed, buffer spring one end is connected to float chamber cover, and the other end is connected to the shaft shoulder.
7. according to the high altitude localities carburetor arrangement described in claims 1 or 2 or 3 or 5 or 6, which is characterized in that the valve deck
It is provided with mark part.
8. high altitude localities carburetor arrangement according to claim 7, which is characterized in that the valve deck is additionally provided with limiting
Portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202454.5A CN108266288A (en) | 2018-03-13 | 2018-03-13 | A kind of high altitude localities carburetor arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202454.5A CN108266288A (en) | 2018-03-13 | 2018-03-13 | A kind of high altitude localities carburetor arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108266288A true CN108266288A (en) | 2018-07-10 |
Family
ID=62774777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810202454.5A Pending CN108266288A (en) | 2018-03-13 | 2018-03-13 | A kind of high altitude localities carburetor arrangement |
Country Status (1)
| Country | Link |
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| CN (1) | CN108266288A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112190126A (en) * | 2020-09-09 | 2021-01-08 | 宁波市润桥工业设计有限公司 | Pressure limiting device for pressure cooker |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236634A (en) * | 1992-09-23 | 1993-08-17 | Walbro Corporation | Carburetor needle valve adjustment limiter cap and method of adjusting fuel flow |
| US6234458B1 (en) * | 1998-07-25 | 2001-05-22 | Andreas Stihl Ag & Co. | Carburetor with secured control screw |
| JP2009013879A (en) * | 2007-07-05 | 2009-01-22 | Nikki Co Ltd | Carburetor |
| CN201502452U (en) * | 2009-08-14 | 2010-06-09 | 宁波贝斯特航空技术工程有限公司 | Carburetor with air intake compensation structure |
| CN204163880U (en) * | 2014-10-09 | 2015-02-18 | 弥勒浩翔科技有限公司 | Electron assistant fuel feeding Carburetor |
| CN204532579U (en) * | 2015-03-04 | 2015-08-05 | 温岭正峰动力有限公司 | The oil-feed construction of switch of Carburetor in a kind of oil gas motor |
| CN205477976U (en) * | 2016-04-07 | 2016-08-17 | 重庆赛普机电有限责任公司 | Carburetor with adjustable main hole flow that measures |
| CN208040568U (en) * | 2018-03-13 | 2018-11-02 | 重庆大江动力设备制造有限公司 | A kind of high altitude localities carburetor arrangement |
-
2018
- 2018-03-13 CN CN201810202454.5A patent/CN108266288A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236634A (en) * | 1992-09-23 | 1993-08-17 | Walbro Corporation | Carburetor needle valve adjustment limiter cap and method of adjusting fuel flow |
| US6234458B1 (en) * | 1998-07-25 | 2001-05-22 | Andreas Stihl Ag & Co. | Carburetor with secured control screw |
| JP2009013879A (en) * | 2007-07-05 | 2009-01-22 | Nikki Co Ltd | Carburetor |
| CN201502452U (en) * | 2009-08-14 | 2010-06-09 | 宁波贝斯特航空技术工程有限公司 | Carburetor with air intake compensation structure |
| CN204163880U (en) * | 2014-10-09 | 2015-02-18 | 弥勒浩翔科技有限公司 | Electron assistant fuel feeding Carburetor |
| CN204532579U (en) * | 2015-03-04 | 2015-08-05 | 温岭正峰动力有限公司 | The oil-feed construction of switch of Carburetor in a kind of oil gas motor |
| CN205477976U (en) * | 2016-04-07 | 2016-08-17 | 重庆赛普机电有限责任公司 | Carburetor with adjustable main hole flow that measures |
| CN208040568U (en) * | 2018-03-13 | 2018-11-02 | 重庆大江动力设备制造有限公司 | A kind of high altitude localities carburetor arrangement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112190126A (en) * | 2020-09-09 | 2021-01-08 | 宁波市润桥工业设计有限公司 | Pressure limiting device for pressure cooker |
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