CN203189144U - Carburetor - Google Patents
Carburetor Download PDFInfo
- Publication number
- CN203189144U CN203189144U CN 201320214118 CN201320214118U CN203189144U CN 203189144 U CN203189144 U CN 203189144U CN 201320214118 CN201320214118 CN 201320214118 CN 201320214118 U CN201320214118 U CN 201320214118U CN 203189144 U CN203189144 U CN 203189144U
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- CN
- China
- Prior art keywords
- chamber
- carburetor
- spray bar
- air
- carburetor body
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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.)
- Expired - Fee Related
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- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
The utility model discloses a carburetor which comprises a carburetor body, an air mixing chamber and an air inlet chamber, wherein the air mixing chamber and the air inlet chamber are formed in the carburetor body. A choke valve assembly is arranged in the air inlet chamber and used for controlling air to enter the air mixing chamber after being started. A throttle valve assembly is arranged in the air mixing chamber and used for controlling fuel to enter an engine. The choke valve assembly comprises a choke valve and a choke valve shaft, wherein the choke valve and the choke valve shaft are mounted at an air inlet of the carburetor body. The throttle valve assembly comprises a throttle valve and a throttle valve shaft, wherein the throttle valve and the throttle valve shaft are mounted at the air mixing chamber of the carburetor body. The carburetor body is further provided with a vacuum acceleration pump which accelerates instantaneously to spray the fuel into a choke pipe when the throttle valve is opened. The carburetor has the advantages of being simple in structure and capable of increasing the fuel feeding volume instantaneously when the engine accelerates, enabling the concentration of a gas mixture to meet requirements, and improving the acceleration performance of the engine.
Description
Technical field
The utility model relates to auto parts and components, and is especially a kind of under the vacuum action that motor car engine work produces, the Carburetor that a certain proportion of gasoline is mixed with air.
Background technique
Motor car engine generally need be sent into the filter cleaner filtered air to make fuel-oil atmozation in the Carburetor and evenly mix with fuel oil and obtains burning mixture at work, so that good combustion.Existing Carburetor comprises the Carburetor body, with the mixed air vessel that takes shape on the Carburetor body, be provided with trunnion between the float chamber of mixed air vessel and storage fuel oil, be provided with startup control air processed in the mixed air vessel and enter the choke valve assembly of mixed air vessel and the throttle valve assembly that the control fuel oil enters motor, the choke valve assembly includes chock plate, the Air strangler spindle that is installed on suction port place on the Carburetor body, and chock plate is fixed on the Air strangler spindle; The throttle valve assembly includes closure and the throttle plate pin that is installed on mixed air vessel place on the Carburetor body, and closure is fixed on the throttle plate pin; During engine operation, flow velocity increased when inhaled air was flowed through trunnion, made this trunnion place produce vacuum, and the fuel oil sucking-off with in the float chamber sprays into trunnion, and fuel oil is atomized by high-speed air flow, and mixes with air, and mixed process continues up in the cylinder.
Some problems below the Carburetor of said structure exists in work: when motor accelerates, closure is opened greatly suddenly, because the quality of fuel oil is bigger than air, so inertia is also more big, be difficult in time increase fuel delivery, and air quantity increases, thereby burning mixture is instantaneous thinning, this just makes engine speed increase slowly, and very suction tude tempering or trouble of shutdown take place the person.
The model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of Carburetor, and this Carburetor can in time increase fuel delivery in the process that motor accelerates, so that engine speed increases fast, improve pick-up of engine.
To achieve these goals, the technical solution adopted in the utility model is: a kind of Carburetor includes the Carburetor body, is molded over mixed air vessel and air inlet chamber on the Carburetor body; Described air-inlet cavity is indoor to be provided with the choke valve assembly that startup control air processed enters described mixed air vessel, be provided with the throttle valve assembly that the control air-fuel mixture amount enters motor in the described mixed air vessel, described choke valve assembly includes chock plate, the Air strangler spindle that is installed on suction port place on the Carburetor body; Described throttle valve assembly includes closure and the throttle plate pin that is installed on the place of mixed air vessel on the Carburetor body, it is characterized in that: also be provided with on the described Carburetor body solar term with the door open the time instantaneous acceleration fuel oil is sprayed into the vacuum accelerating pump of trunnion.
As further setting of the present utility model, described vacuum accelerating pump comprises the accelerating pump body and accelerates spray bar, be provided with diaphragm in the accelerating pump body, described diaphragm will speed up the pump body and is divided into chamber a and chamber b, be provided with spring in the chamber a, spring is compressing diaphragm, and described chamber a communicates with described mixed air vessel, chamber b communicates with the acceleration spray bar and with the float chamber that fuel oil is provided respectively, and described acceleration spray bar communicates with trunnion.
As further setting of the present utility model, described chamber b is provided with the oil inlet hole that communicates with the float chamber that fuel oil is provided, the end face of oil inlet hole in chamber b is provided with positioning retainer ring and steel ball, being provided with between described positioning retainer ring and the oil inlet hole can be for the space of steel ball activity, and diameter of the steel ball is greater than the oil-feed aperture.
As further setting of the present utility model, be provided with one-way valve in the described acceleration spray bar, one-way valve comprises valve seat, spool and spring, valve seat is installed on the described Carburetor body, valve core housing is located in the described acceleration spray bar, described spool offers circular groove towards the end face of valve seat, the spool sidewall offers spaced grooving, the inwall of described grooving and described acceleration spray bar constitutes the metering-orifice that can supply fuel oil to pass through, spring one end is installed on the valve seat, the spring the other end is embedded in the circular groove of spool, is provided with steel ball between described spool and the valve seat.
Adopt such scheme, the vacuum accelerating pump that arranges in the utility model, its chamber a communicates with mixed air vessel, chamber b communicates with float chamber, accelerating the spray bar two ends communicates with chamber b and trunnion respectively, when motor accelerates, solar term door-plate in the mixed air vessel cuts out, chamber a compression, extract the fuel oil in the float chamber among the chamber b, when solar term with the door open the time, chamber a internal air pressure increases, and promotes diaphragm and moves towards the direction of chamber b, because chamber b communicates with the acceleration spray bar, chamber b drives the effect downforce increase of diaphragm at the spring of chamber a, thereby makes the instantaneous inlet aperture acceleration of the fuel oil spray bar among the chamber b spray into trunnion, mixes through air atomizing, form the flammable mixed gas of high concentration, solved in the prior art motor acclerating section valve and opened greatly suddenly, burning mixture is instantaneous thinning, makes engine speed increase problem slowly.In addition, the steel ball that arranges between chamber b and the float chamber hinders fuel oil and enters float chamber through oil inlet hole from chamber b when motor accelerates, also play the effect of certain one-way valve.Positioning retainer ring plays the effect to the steel ball location.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Accompanying drawing 1 is the utility model specific embodiment schematic appearance;
Accompanying drawing 2 is the utility model specific embodiment plan view;
Accompanying drawing 3 is the utility model specific embodiment right elevation;
Accompanying drawing 4 is the utility model specific embodiment rear view;
Accompanying drawing 5 is the A-A sectional drawing of accompanying drawing 3;
Accompanying drawing 6 is the B-B sectional drawing of accompanying drawing 4;
Accompanying drawing 7 is the STRUCTURE DECOMPOSITION figure of the utility model vacuum accelerating pump;
Accompanying drawing 8 is the structural representation of steel ball in the steel ball passage in the utility model vacuum accelerating pump;
Accompanying drawing 9 accelerates the spray bar structural representation for the utility model;
Accompanying drawing 10 accelerates spray bar STRUCTURE DECOMPOSITION figure for the utility model.
Embodiment
The Carburetor of specific embodiment of the utility model shown in Fig. 1-8 includes Carburetor body 1, is molded over the mixed air vessel 2 on the Carburetor body and is molded over air inlet chamber 6 on the Carburetor body; Be provided with trunnion 3 between the float chamber of mixed air vessel 2 and storage fuel oil, float chamber sprays into trunnion 3 by nozzle with fuel oil, be provided with the choke valve assembly 22 that startup control air processed enters mixed air vessel in the air inlet chamber 6, be provided with the throttle valve assembly 21 that the control mixed gas enters motor in the mixed air vessel 2, choke valve assembly 22 includes chock plate 221, the Air strangler spindle 222 that is installed on suction port place on the Carburetor body 1; Throttle valve assembly 21 includes closure 211 and the throttle plate pin 212 that is installed on mixed air vessel 2 places on the Carburetor body 1, closure 211 is installed on the throttle plate pin 212, also is provided with the vacuum accelerating pump 4 that when closure 211 is opened greatly instantaneous acceleration sprays into fuel oil trunnion 3 on the Carburetor body 1.
Above-mentioned vacuum accelerating pump 4 comprises accelerating pump body 41 and accelerates spray bar 5, be provided with diaphragm 42 in the accelerating pump body 41, diaphragm 42 will speed up pump body 41 and is divided into chamber a43 and chamber b44, be provided with spring 45 in the chamber a43, spring 45 is compressing diaphragm 42, chamber b44 respectively with accelerate spray bar 5 and communicate with the float chamber that fuel oil is provided, communicate by gas-entered passageway 431 between chamber a43 and the mixed air vessel 2.
Above-mentioned chamber b44 is provided with the oil inlet hole that communicates with the float chamber that fuel oil is provided, the end face of oil inlet hole in chamber b44 is provided with positioning retainer ring 46 and steel ball 47, being provided with between positioning retainer ring 46 and the oil inlet hole can be for the steel ball passage 48 of steel ball 47 activities, and steel ball 47 diameters are greater than the oil-feed aperture.
As Fig. 5,9, shown in 10, be provided with one-way valve in the above-mentioned acceleration spray bar, one-way valve comprises valve seat 51, spool 52 and spring 53, valve seat 51 is installed on the Carburetor body 1, spool 52 is set in and accelerates in the spray bar 5, spool 2 offers circular groove 521 towards the end face of valve seat 1, spool 52 sidewalls offer spaced grooving 522, grooving 522 constitutes the metering-orifice that can supply fuel oil to pass through with the inwall that accelerates spray bar 5, arranging of metering-orifice can be controlled the instantaneous amount that sprays into trunnion 3 of fuel oil, spring 53 1 ends are installed on the valve seat 51, and spring 53 the other ends are embedded in the circular groove 521 of spool 52, are provided with steel ball 54 between spool 52 and the valve seat 51.
Adopt such scheme, the vacuum accelerating pump 4 that arranges in the utility model, its chamber a43 communicates with mixed air vessel 2, chamber b44 lower end communicates with float chamber, chamber b upper end communicates with acceleration spray bar 5, when motor accelerates, when closure 211 is closed, chamber a is evacuated, spring compression among the chamber a, this moment, chamber b was full of chamber b by oil inlet hole with the fuel oil sucking-off in the float chamber, when closure 211 is opened greatly, chamber a43 internal air pressure increases, gas promotion diaphragm 42 moves towards the direction of chamber b44, because chamber b44 upper end communicates with acceleration spray bar 5, chamber b44 pressure under the effect of diaphragm 42 increases, make fuel oil spray into trunnion 3 from accelerating spray bar 5 through metering-orifice is instantaneous, mix through air atomizing, form the flammable mixed gas of high concentration, solved in the prior art motor acclerating section valve 211 and opened greatly suddenly, burning mixture is instantaneous thinning, make engine speed increase problem slowly, and close or close hour when closure 211 that chamber a43 internal air pressure reduces, spring 45 reset strap dynamic diaphragms 42 reset, the fuel oil normal fuel injection in the float chamber.In addition, the steel ball 47 that arranges between chamber b44 and the float chamber, fuel oil is instantaneous in float chamber can prevent that fuel oil from entering accelerating pump 4 through oil inlet hole when spraying into trunnion 3, and positioning retainer ring 46 plays the effect that steel ball 47 location is made steel ball 47 activity steel ball passage 48 in.The utlity model has simple in structure, can be when motor accelerates, instantaneous increase fuel delivery makes the concentration of mixed gas reach necessary requirement, improves the engine acceleration energy.
Claims (4)
1. a Carburetor includes the Carburetor body, is molded over mixed air vessel and air inlet chamber on the Carburetor body; Described air-inlet cavity is indoor to be provided with the choke valve assembly that startup control air processed enters described mixed air vessel, be provided with the throttle valve assembly that the control air-fuel mixture amount enters motor in the described mixed air vessel, described choke valve assembly includes chock plate, the Air strangler spindle that is installed on suction port place on the Carburetor body; Described throttle valve assembly includes closure and the throttle plate pin that is installed on the place of mixed air vessel on the Carburetor body, it is characterized in that: also be provided with on the described Carburetor body solar term with the door open the time instantaneous acceleration fuel oil is sprayed into the vacuum accelerating pump of trunnion.
2. Carburetor according to claim 1, it is characterized in that: described vacuum accelerating pump comprises the accelerating pump body and accelerates spray bar, be provided with diaphragm in the accelerating pump body, described diaphragm will speed up the pump body and is divided into chamber a and chamber b, be provided with spring in the chamber a, spring is compressing diaphragm, and described chamber a communicates with described mixed air vessel, chamber b communicates with the acceleration spray bar and with the float chamber that fuel oil is provided respectively, and described acceleration spray bar communicates with trunnion.
3. Carburetor according to claim 2, it is characterized in that: described chamber b is provided with the oil inlet hole that communicates with the float chamber that fuel oil is provided, the end face of oil inlet hole in chamber b is provided with positioning retainer ring and steel ball, being provided with between described positioning retainer ring and the oil inlet hole can be for the space of steel ball activity, and diameter of the steel ball is greater than the oil-feed aperture.
4. according to claim 2 or 3 described Carburetors, it is characterized in that: be provided with one-way valve in the described acceleration spray bar, one-way valve comprises valve seat, spool and spring, valve seat is installed on the described Carburetor body, valve core housing is located in the described acceleration spray bar, described spool offers circular groove towards the end face of valve seat, the spool sidewall offers spaced grooving, the inwall of described grooving and described acceleration spray bar constitutes the metering-orifice that can supply fuel oil to pass through, spring one end is installed on the valve seat, the spring the other end is embedded in the circular groove of spool, is provided with steel ball between described spool and the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214118 CN203189144U (en) | 2013-04-24 | 2013-04-24 | Carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214118 CN203189144U (en) | 2013-04-24 | 2013-04-24 | Carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189144U true CN203189144U (en) | 2013-09-11 |
Family
ID=49106009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320214118 Expired - Fee Related CN203189144U (en) | 2013-04-24 | 2013-04-24 | Carburetor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203189144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461279A (en) * | 2017-08-28 | 2017-12-12 | 福鼎市丰泰化油器制造有限公司 | A kind of outboard engine carburetor provided with anxious acceleration enrichment device |
| CN110067675A (en) * | 2019-05-28 | 2019-07-30 | 广州尼比车辆用品有限公司 | A kind of carburetor and engine |
-
2013
- 2013-04-24 CN CN 201320214118 patent/CN203189144U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461279A (en) * | 2017-08-28 | 2017-12-12 | 福鼎市丰泰化油器制造有限公司 | A kind of outboard engine carburetor provided with anxious acceleration enrichment device |
| CN110067675A (en) * | 2019-05-28 | 2019-07-30 | 广州尼比车辆用品有限公司 | A kind of carburetor and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20180424 |