CN206503649U - A kind of plunger type carburetor - Google Patents
A kind of plunger type carburetor Download PDFInfo
- Publication number
- CN206503649U CN206503649U CN201720122806.7U CN201720122806U CN206503649U CN 206503649 U CN206503649 U CN 206503649U CN 201720122806 U CN201720122806 U CN 201720122806U CN 206503649 U CN206503649 U CN 206503649U
- Authority
- CN
- China
- Prior art keywords
- plunger
- cyclone
- nozzle
- oil inlet
- intermediate throughholes
- 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 - Fee Related
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
A kind of plunger type carburetor, including carburetor body (1) and plunger spindle (2), nozzle body (15), it is tubaeform guide face (10) under nozzle (3) in described nozzle body (15), it is a Cylindrical hydrocyclone (4) under guide face (10), described plunger spindle (2) is driven the plunger valve (11) for driving lower end connection to move up and down by bracing wire or diaphragm.When the intermediate throughholes (14) that plunger valve (11) is moved upwards up to cyclone (4) are closed, fuel oil can only be entered in centre bore (8) by the oil inlet passage (5) connected with cyclone (4) lower end taper hole (20) forms eddy flow, jetting nozzle (3) in eccentric fashion, the fogging degree of fuel oil and air, which is improved, causes the efficiency of combustion of engine to improve, so that saving fuel oil improves discharge.
Description
Art
The utility model belongs to motorcycle engine field of components, is related to a kind of swirl atomizer plunger type carburetor.
Background technology
Motorcycle engine plunger type carburetor includes air intake duct, slides up and down plunger air throttle and outlet passageway, due to
Pressure drop produced by carburetor plunger air throttle venturi, liquid fuel is sucked by metering-orifice before in-line from carburetor bowl
Jetting nozzle, enters combustion chambers burn by plunger air throttle venturi high velocity air impact atomization formation gaseous mixture afterwards.At present, change
Oily device nozzle is wind pressure type direct-injection nozzle, causes fuel oil to enter poor with air mixing capacity in passage in the case where flow is big,
Cause engine chamber efficiency of combustion low.
The content of the invention
In order to improve the fuel oil of carburetor jet ejection and the blending degree of air, the utility model provides one kind big
Under the big fuel flow of throttle opening, carburetor jet is changed into centrifugal approach by wind pressure type, passes through the atomization of centrifugation
Effect, the fuel oil that increase nozzle sprays enters the mixing capacity of plunger air throttle venturi and air, improves engine in big fuel oil
Efficiency of combustion under flow, so that saving fuel oil improves discharge.
The utility model solves the scheme that its technical problem taken：It is provided with carburetor body (1) venturi position
It under tubaeform guide face (10), guide face (10) is one to be under nozzle (3) in nozzle body (15), described nozzle body (15)
With nozzle (3) coaxially, plunger spindle (2) is worn for lower end taper hole (20) Cylindrical hydrocyclone (4), guide face (10) and cyclone (4)
Cross described nozzle (3) and the intermediate throughholes (14) of described cyclone (4), the lower end connection plunger valve of plunger spindle (2)
(11), described plunger spindle (2) is driven the plunger valve (11) described in driving to move up and down by bracing wire or diaphragm.So, when
During the small throttle fuel flow of engine ignition, idling and small throttle opening, the intermediate throughholes (14) of cyclone (4) are to open
, after the fuel oil sucked from float chamber (6) is by metering-orifice (7) and oil inlet pipe (9) and air floatation, from through hole (14) and and eddy flow
The oil inlet passage (5) of device (4) lower end taper hole (20) connection enters centre bore (8), and fuel oil mainly flows through from through hole (14), by leading
Stream interface (10), fuel oil is with wind pressure type direct-injection jetting nozzle (3).When pressure difference is small, be conducive to engine ignition and work.Work as plunger
Spindle (2) is moved upwards up to plunger valve (11) when being fitted with the intermediate throughholes (14) of cyclone (4), and through hole (14) is closed, from
The fuel oil of float chamber (6) suction can only be by connecting by metering-orifice (7) and oil inlet pipe (9) with cyclone (4) lower end taper hole (20)
Oil inlet passage (5) enters centre bore (8).Due to the axis of the axis runout cyclone (4) of oil inlet passage (5), fuel oil is in eddy flow
Eddy flow is formed in the centre bore (8) of device (4), by guide face (10), fuel oil is with centrifugation jetting nozzle (3).When fuel oil enters
When entering air throttle venturi with air blending, the fogging degree of fuel oil and air is improved so that the efficiency of combustion of engine is improved.
The beneficial effects of the utility model are that fuel oil is set in nozzle body (15) from carburetor body (1) venturi position
The outflow mode of nozzle (3) becomes centrifugal under the big fuel flow of big throttle opening by wind pressure type, adds fuel oil
With the blending degree of air, it is simple in construction.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the embodiment vertical section structural map of plunger type carburetor.
Fig. 2 is the axonometric drawing of the cyclone (4) of embodiment.
Fig. 3 is cyclone (4) vertical section structural map of embodiment.
Fig. 4 is plunger spindle (2) vertical section structural map of embodiment.
Carburetor body (1) in figure, plunger spindle (2), nozzle (3), cyclone (4), oil inlet passage (5), float chamber
(6), metering-orifice (7), centre bore (8), oil inlet pipe (9), guide face (10), plunger valve (11), plunger air throttle (12), plunger spring
(13), through hole (14), nozzle body (15), clip back-up ring (16), neck (17), plunger spring lid (18), direct piping (19), cone
Hole (20).
Embodiment
In the embodiment shown in fig. 1, carburetor body (1) venturi position is provided with nozzle body (15), described nozzle
It under tubaeform guide face (10), guide face (10) is a Cylindrical hydrocyclone (4), water conservancy diversion to be under nozzle (3) in body (15)
With described nozzle (3) coaxially, plunger spindle (2) passes through described nozzle (3) and described eddy flow for face (10) and cyclone (4)
In the intermediate throughholes (14) of device (4), oil inlet pipe (9) insertion float chamber (6), there is metering-orifice (7) connection.
The axonometric drawing of the cyclone (4) of embodiment as shown in Figure 2, described cyclone (4) is a lower end taper hole
(20) cylinder, upper surface is provided with centre bore (8), and the diameter of centre bore (8) is more than the intermediate throughholes (14) of cyclone (4)
Diameter, centre bore (8) has at least one oil inlet passage (5) to connect with the lower end taper hole (20) of cyclone (4), and described oil-feed is led to
The axis of the axis runout cyclone (4) in road (5).
Cyclone (4) vertical section structural map of embodiment as shown in Figure 3, described cyclone (4) extruding is fixed on institute
In the hypomere direct piping (19) for the nozzle body (15) stated.
Plunger spindle (2) vertical section structural map of embodiment as shown in Figure 4, the epimere of described plunger spindle (2) is
Cylinder, stage casing is cone, and the part that hypomere is used to connect is cylinder, connects a plunger valve (11).Described carburetion
Plunger spring (13) is pressed in plunger air throttle (12) by device body (1) upper plug spring cup (18).Clip back-up ring (16) is embedded
In the neck (17) of described plunger spindle (2) epimere, by embedded diverse location, it can be originated with pilot plunger air throttle (12)
Under state between the plunger valve (11) of lower end connection and the intermediate throughholes (14) of cyclone (4) of described plunger spindle (2)
Distance.In engine ignition, idling and small throttle fuel flow, the intermediate throughholes (14) of described cyclone (4) are to open
, after the fuel oil sucked from float chamber (6) is by metering-orifice (7) and oil inlet pipe (9) and air floatation, from through hole (14) and and eddy flow
The oil inlet passage (5) of device (4) lower end taper hole (20) connection enters centre bore (8), because the reason for flow resistance is small, fuel oil is main
Flowed through from through hole (14), by guide face (10), fuel oil is with wind pressure type direct-injection jetting nozzle (3).When pressure difference is small, be conducive to hair
Motivation is lighted a fire and worked.
Under the big fuel flow of big throttle opening, when plunger spindle (2) is moved upwards up to plunger valve (11) and eddy flow
Device (4) intermediate throughholes (14) laminating when, through hole (14) is closed, from float chamber (6) suck fuel oil is by metering-orifice (7) and enters
Oil pipe (9) can only enter centre bore (8) by the oil inlet passage (5) connected with cyclone (4) lower end taper hole (20).Because oil-feed is logical
The axis of the axis runout cyclone (4) in road (5), fuel oil forms eddy flow in the centre bore (8) of cyclone (4), by water conservancy diversion
Face (10), fuel oil is with centrifugation jetting nozzle (3).
Described plunger spindle (2) in the presence of bracing wire or diaphragm when continuing to rise, and plunger valve (11) closes rotation all the time
Flow the intermediate throughholes (14) of device (4).Conversely, when described plunger spindle (2) declines in the presence of plunger spring (13), it is described
Plunger valve (11) decline together with described plunger spindle (2).When plunger valve (11) departs from the intermediate throughholes with cyclone (4)
(14) during laminating, through hole (14) is opened.
Described plunger valve (11) epimere for cone, hypomere for cylinder, through hole (14) have one from part close to
The process completely closed.Conversely, from completely closing to being gradually opened.
Meanwhile, the port of the hypomere direct piping (19) of described nozzle body (15) and the top of described oil inlet pipe (9)
Annular gap is left in port, so that secondary air inlet enters described direct piping (19) internal emulsification with fuel oil.
Claims (5)
1. a kind of plunger type carburetor, including carburetor body (1) and plunger spindle (2), nozzle body (15), it is characterized in that：Institute
It under tubaeform guide face (10), guide face (10) is a Cylindrical hydrocyclone to be under nozzle (3) in the nozzle body (15) stated
(4), coaxially, described plunger spindle (2) passes through described nozzle (3) and institute for guide face (10) and cyclone (4) and nozzle (3)
The intermediate throughholes (14) for the cyclone (4) stated, described plunger spindle (2) is driven by bracing wire or diaphragm drives lower end connection
Plunger valve (11) is moved up and down, and float chamber (6) has at least one passage to connect with described nozzle (3).
2. plunger type carburetor according to claim 1, it is characterized in that：Described cyclone (4) lower end taper hole (20), on
End face has centre bore (8), and the diameter of centre bore (8) is more than the diameter of intermediate throughholes (14), centre bore (8) and described cyclone
(4) lower end taper hole (20) has the connection of at least one oil inlet passage (5), the axle of the axis runout cyclone (4) of oil inlet passage (5)
Line.
3. the plunger type carburetor according to claim 1 or claim 2, it is characterized in that：Under described plunger valve (11)
Move to depart from and fitted with intermediate throughholes (14) of described cyclone (4), described in float chamber (6) and described nozzle (3) have
The intermediate throughholes (14) of cyclone (4) connected with the oil inlet passage (5) of described cyclone (4) lower end taper hole (20).
4. the plunger type carburetor according to claim 1 or claim 2, it is characterized in that：On described plunger valve (11)
The intermediate throughholes (14) of the cyclone (4) described in closing are moved to, float chamber (6) has described cyclone with described nozzle (3)
(4) oil inlet passage (5) connection of lower end taper hole (20).
5. plunger type carburetor according to claim 1, it is characterized in that：The hypomere direct piping of described nozzle body (15)
(19) port and the upper port of oil inlet pipe (9) leave annular gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720122806.7U CN206503649U (en) | 2017-02-10 | 2017-02-10 | A kind of plunger type carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720122806.7U CN206503649U (en) | 2017-02-10 | 2017-02-10 | A kind of plunger type carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206503649U true CN206503649U (en) | 2017-09-19 |
Family
ID=59833139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720122806.7U Expired - Fee Related CN206503649U (en) | 2017-02-10 | 2017-02-10 | A kind of plunger type carburetor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206503649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412638A (en) * | 2017-02-10 | 2018-08-17 | 张炼鼎 | A kind of plunger type carburetor |
-
2017
- 2017-02-10 CN CN201720122806.7U patent/CN206503649U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412638A (en) * | 2017-02-10 | 2018-08-17 | 张炼鼎 | A kind of plunger type carburetor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170919 Termination date: 20200210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |