CN209163958U - A kind of diaphragm type carburator - Google Patents
A kind of diaphragm type carburator Download PDFInfo
- Publication number
- CN209163958U CN209163958U CN201821187467.1U CN201821187467U CN209163958U CN 209163958 U CN209163958 U CN 209163958U CN 201821187467 U CN201821187467 U CN 201821187467U CN 209163958 U CN209163958 U CN 209163958U
- Authority
- CN
- China
- Prior art keywords
- negative tube
- mixing chamber
- pore
- negative
- diaphragm type
- 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.)
- Active
Links
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
- F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
- F02M17/02—Floatless carburettors
- F02M17/04—Floatless carburettors having fuel inlet valve controlled by diaphragm
-
- 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
- F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
Landscapes
- 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
A kind of diaphragm type carburator, ontology and lower cover including interconnection, mixing chamber is provided in the ontology, the mixing chamber hole of the mixing chamber is located on the side wall of the ontology, diaphragm pump is provided in the cavity that the ontology and lower cover enclose jointly, it further include negative tube, the negative tube is mounted on the outer wall in the mixing chamber hole, the negative tube is provided at least one negative tube pressure port close to the one end in the mixing chamber hole, the negative tube pressure port is connected to the mixing chamber hole, the other end of the negative tube is closed, the negative tube is connected to by pipeline with the air chamber of the diaphragm pump.Diaphragm type carburator of the utility model with negative tube, using increasing negative tube on mixing chamber, by changing position and the angle of pressure port, some extra oil films generated at the aperture of pressure port can be with gaseous mixture together inspiration engine, to guarantee that air chamber pressure channel is unimpeded.
Description
Technical field
The utility model relates to a kind of diaphragm type carburator, especially a kind of diaphragm type carburator with negative tube.
Background technique
The pressure port of the diaphragm type carburator diaphragm pump of the prior art using directly drilling on the body, with engine into
Tracheae communicates.It can be found in Fig. 7, the knot being directly connected with the air chamber of diaphragm pump 4 similar to single second fabrication hole 3 in Fig. 7
Structure.In engine use process, due to gas mixture cold coagulation phenomena, it is also easy to produce the normal pressure that oil droplet hinders pressure port.It is sending out
When motivation is overturn, the trapped fuel in air chamber 4 is also easy to flow to mixing with engine overturning and engine suction itself
Room is inhaled into engine with original normal gaseous mixture and burns, keep gaseous mixture partially dense, causes rotary speed unstabilization, make when serious
At engine misses.
Utility model content
Technical problem to be solved in the utility model is in view of the above drawbacks of the prior art, to provide a kind of band negative tube
Diaphragm type carburator.
To achieve the goals above, the utility model provides a kind of diaphragm type carburator, the ontology including interconnection
And lower cover, mixing chamber is provided in the ontology, the mixing chamber hole of the mixing chamber is located on the side wall of the ontology, and described
Diaphragm pump is provided in the cavity that body and lower cover enclose jointly, wherein further includes negative tube, the negative tube is mounted on described mixed
On the outer wall for closing room hole, the negative tube is provided at least one negative tube pressure port, institute close to the one end in the mixing chamber hole
State negative tube pressure port to be connected to the mixing chamber hole, the closing of the other end of the negative tube, the negative tube by pipeline with
The air chamber of the diaphragm pump is connected to.
Above-mentioned diaphragm type carburator, wherein the pipeline includes the first pore and second of setting on the body
Pore, is provided with negative pressure side opening in the middle part of the negative tube, the both ends of first pore respectively with the negative tube side opening and
One end of second pore connects, and the other end of second pore is connected to the air chamber.
Above-mentioned diaphragm type carburator, wherein the pipeline includes the first pore, the second pipe of setting on the body
Hole and the link slot being arranged on the body outer wall are provided with negative pressure side opening, first pore in the middle part of the negative tube
One end be connected to the negative pressure side opening, the other end of first pore is connected to one end of the link slot, the connection
The other end of slot is connected to one end of second pore, and the other end of second pore is connected to the air chamber.
Above-mentioned diaphragm type carburator, wherein the other end of the negative tube is closed by plug.
Above-mentioned diaphragm type carburator, wherein the plug is spherical or cylindrical.
Above-mentioned diaphragm type carburator, wherein the axis of the negative tube intersect with the axis in the mixing chamber hole and with
There is an angle between horizontal plane where the axis in the mixing chamber hole.
Above-mentioned diaphragm type carburator, wherein the negative tube is provided with multiple negative close to the one end in the mixing chamber hole
Pressure pipe pressure port, the multiple negative tube pressure port are evenly arranged on the side wall of the negative tube.
Above-mentioned diaphragm type carburator, wherein the axis in the axis of the negative tube pressure port and the mixing chamber hole or
Horizontal plane where the axis in the mixing chamber hole is parallel or has an angle.
Above-mentioned diaphragm type carburator, wherein the negative tube pressure port be located at the end of the negative tube and with it is described
Negative tube coaxial arrangement, the end of the negative tube are an inclined-plane, and the axis on the inclined-plane and the negative tube has an angle.
Above-mentioned diaphragm type carburator, wherein the negative pressure side opening is square hole, circular hole or irregularly-shaped hole.
The beneficial functional of the utility model is:
Diaphragm type carburator of the utility model with negative tube passes through change using negative tube is increased on mixing chamber
The position of pressure port and angle, some extra oil films generated at the aperture of pressure port can start with gaseous mixture together inspiration
Machine, to guarantee that air chamber pressure channel is unimpeded.By test, especially negative tube structure of the negative tube pressure port with inclined-plane,
Certain fuel oil is added in air chamber, after engine runs a period of time, dismantles carburetor, range estimation is basic inside air chamber
There is no the trapped fuel of oil droplet shape.And the changing value of air chamber room pressure is monitored, than the diaphragm type carburator pressure of original structure
Force curve is more smooth.Make pump oil pressure more stable in this way, to guarantee engine under overturning and various other operating conditions all
It can run well.
The utility model is described in detail below in conjunction with the drawings and specific embodiments, but not as to the utility model
Restriction.
Detailed description of the invention
The structural schematic diagram of Fig. 1 an embodiment of the present invention；
Fig. 2 is the D-D partial sectional view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the A-A partial sectional view of Fig. 3；
Fig. 5 is the C-C partial sectional view of Fig. 3；
Fig. 6 is the B-B partial sectional view of Fig. 1；
The structural schematic diagram of another embodiment of Fig. 7 the utility model；
Fig. 8 is another embodiment partial sectional view of A-A of Fig. 3.
Wherein, appended drawing reference
1 negative tube
2 first pores
3 second pores
4 air chambers
5 diaphragms
6 fuel chambers
7 ontologies
8 mixing chamber holes
9 negative tube pressure ports
10 plugs
11 negative tube side openings
12 link slots
13 inclined-planes
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
Referring to Fig. 1-Fig. 6, the structural schematic diagram of Fig. 1 an embodiment of the present invention, Fig. 2 is the D-D broken section of Fig. 1
Figure, Fig. 3 are the top view of Fig. 1, and Fig. 4 is the A-A partial sectional view of Fig. 3, and Fig. 5 is the C-C partial sectional view of Fig. 3, Fig. 6 Fig. 1
B-B partial sectional view.The diaphragm type carburator of the utility model, ontology 7 and lower cover including interconnection, the ontology 7
It is inside provided with mixing chamber, the mixing chamber hole 8 of the mixing chamber is located on the side wall of the ontology 7, and the ontology 7 and lower cover are common
Diaphragm pump is provided in the cavity of enclosing, which is characterized in that further includes negative tube 1, the negative tube 1 is mounted on the mixing chamber
On the outer wall in hole 8, the negative tube 1 is provided at least one negative tube pressure port 9, institute close to the one end in the mixing chamber hole 8
It states negative tube pressure port 9 to be connected to the mixing chamber hole 8, the other end closing of the negative tube 1, such as the negative tube 1
The other end is closed by plug 10, and the plug 10 is preferably spherical or cylindrical, and the negative tube 1 passes through pipeline and the film
The air chamber 4 of piece pump is connected to, and the air chamber 4 of diaphragm pump is the same as being separated with diaphragm 5 among fuel chamber 6.Wherein, the axis of the negative tube 1
Line intersects with the axis in the mixing chamber hole and has an angle (as schemed between the horizontal plane where the axis in the mixing chamber hole
1), according to different products, the installation site of negative tube 1 can surround any angle in mixing chamber hole 8.The negative tube 1 can be with
For the integral structural member of monoblock type, it is also possible to segmentation structure, then is respectively pressed into ontology 7, it can be according to actual needs using not
Same structure.
In the present embodiment, the pipeline includes the first pore 2 and the second pore 3 being arranged on the ontology 7, described negative
The middle part of pressure pipe 1 is provided with negative pressure side opening, and the negative pressure side opening can be square hole, circular hole or irregularly-shaped hole, and the two of first pore 2
End connect respectively with one end of the negative tube side opening 11 and second pore 3, the other end of second pore 3 with it is described
Air chamber 4 is connected to.
Referring to Fig. 7, the structural schematic diagram of another embodiment of Fig. 7 the utility model.In the present embodiment, the pipeline includes setting
The first pore 2 on the ontology 7, the second pore 3 and the link slot 12 being arranged on 7 outer wall of ontology are set, it is described negative
The middle part of pressure pipe 1 is provided with negative pressure side opening, and one end of first pore 2 is connected to the negative pressure side opening, first pore 2
The other end be connected to one end of the link slot 12, one end of the other end of the link slot 12 and second pore 3 connects
Logical, the other end of second pore 3 is connected to the air chamber 4.Link slot 12 on 7 outer wall of ontology is opened as outside
Slot can form a channel by locking in the Flange Plane that engine seals.
Wherein, the negative tube 1 is provided with multiple negative tube pressure ports 9 close to the one end in the mixing chamber hole 8, described more
A negative tube pressure port 9 is evenly arranged on the side wall of the negative tube 1.The axis and the mixing chamber of the negative tube pressure port 9
Horizontal plane where the axis in hole 8 or the axis in the mixing chamber hole 8 is parallel or has an angle (referring to Fig. 6).Alternatively, referring to
Fig. 8, Fig. 8 are another embodiment partial sectional view of A-A of Fig. 3.The negative tube pressure port 9 is located at the end of the negative tube 1
And be coaxially disposed with the negative tube 1, the end of the negative tube 1 is an inclined-plane 13, the inclined-plane 13 and the negative tube 1
Axis has an angle.The inner hole of negative tube 1 is directly drilled through as pressure port, to be communicated with mixing chamber hole 8, negative tube 1
The inclined-plane 13 of certain angle, the peace on the inclined-plane 13 are machined on end face where the end face i.e. pressure port communicated with mixing chamber hole 8
Filling angle can be by the axis any rotation of negative tube 1.
Diaphragm type carburator of the utility model with negative tube passes through change using negative tube is increased on mixing chamber
The position of pressure port and angle, some extra oil films generated at the aperture of pressure port can start with gaseous mixture together inspiration
Machine passes through test, especially negative tube knot of the negative tube pressure port 9 with inclined-plane 13 to guarantee that air chamber pressure channel is unimpeded
Structure adds certain fuel oil in air chamber 4, after engine runs a period of time, dismantles carburetor, 4 inside mesh of air chamber
Survey the basic trapped fuel without oil droplet shape.And the changing value of 4 room pressure of air chamber is monitored, than the diaphragm type of original structure
Oily device pressure curve is more smooth.Such result keeps pump oil pressure more stable, thus guarantee engine overturning and it is other
It can run well under various operating conditions.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art work as can make various corresponding changes and modifications, but these according to the utility model
Corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.
Claims (10)
1. a kind of diaphragm type carburator, ontology and lower cover including interconnection are provided with mixing chamber in the ontology, described mixed
The mixing chamber hole for closing room is located on the side wall of the ontology, is provided with diaphragm in the cavity that the ontology and lower cover enclose jointly
Pump, which is characterized in that further include negative tube, the negative tube is mounted on the outer wall in the mixing chamber hole, and the negative tube leans on
The one end in the nearly mixing chamber hole is provided at least one negative tube pressure port, the negative tube pressure port and the mixing chamber hole
Connection, the other end closing of the negative tube, the negative tube are connected to by pipeline with the air chamber of the diaphragm pump.
2. diaphragm type carburator according to claim 1, which is characterized in that the pipeline includes being arranged on the body
The first pore and the second pore, be provided with negative pressure side opening in the middle part of the negative tube, the both ends of first pore respectively with
The connection of one end of the negative tube side opening and second pore, the other end of second pore are connected to the air chamber.
3. diaphragm type carburator according to claim 1, which is characterized in that the pipeline includes being arranged on the body
The first pore, the second pore and the link slot being arranged on the body outer wall, be provided with negative pressure in the middle part of the negative tube
Side opening, one end of first pore are connected to the negative pressure side opening, the other end and the link slot of first pore
One end connection, the other end of the link slot are connected to one end of second pore, the other end of second pore and institute
State air chamber connection.
4. diaphragm type carburator according to claim 1, which is characterized in that the other end of the negative tube is sealed by plug
It closes.
5. diaphragm type carburator according to claim 4, which is characterized in that the plug is spherical or cylindrical.
6. according to claim 1, diaphragm type carburator described in 2,3,4 or 5, which is characterized in that the axis of the negative tube with
The axis in the mixing chamber hole intersects and has an angle between the horizontal plane where the axis in the mixing chamber hole.
7. diaphragm type carburator according to claim 6, which is characterized in that the negative tube is close to the mixing chamber hole
One end is provided with multiple negative tube pressure ports, and the multiple negative tube pressure port is evenly arranged on the side wall of the negative tube.
8. diaphragm type carburator according to claim 6, which is characterized in that the axis of the negative tube pressure port with it is described
Horizontal plane where the axis in mixing chamber hole or the axis in the mixing chamber hole is parallel or has an angle.
9. diaphragm type carburator according to claim 6, which is characterized in that the negative tube pressure port is located at the negative pressure
It the end of pipe and is coaxially disposed with the negative tube, the end of the negative tube is an inclined-plane, the inclined-plane and the negative tube
Axis have an angle.
10. diaphragm type carburator according to claim 2 or 3, which is characterized in that the negative pressure side opening is square hole, circular hole
Or irregularly-shaped hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187467.1U CN209163958U (en) | 2018-07-25 | 2018-07-25 | A kind of diaphragm type carburator |
| PCT/CN2018/117210 WO2020019602A1 (en) | 2018-07-25 | 2018-11-23 | Diaphragm carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187467.1U CN209163958U (en) | 2018-07-25 | 2018-07-25 | A kind of diaphragm type carburator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209163958U true CN209163958U (en) | 2019-07-26 |
Family
ID=67327651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821187467.1U Active CN209163958U (en) | 2018-07-25 | 2018-07-25 | A kind of diaphragm type carburator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209163958U (en) |
| WO (1) | WO2020019602A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000265906A (en) * | 1999-03-19 | 2000-09-26 | Zama Japan Kk | Acceleration device for evaporator |
| JP2001263174A (en) * | 2000-03-17 | 2001-09-26 | Walbro Japan Inc | Fuel supply mechanism for carburetor |
| JP2004028012A (en) * | 2002-06-27 | 2004-01-29 | Zama Japan Kk | Diaphragm carburetor |
| US7467785B2 (en) * | 2006-09-08 | 2008-12-23 | Walbro Engine Management, L.L.C. | Auxiliary fuel and air supply in a carburetor |
| DE202007009475U1 (en) * | 2007-07-05 | 2008-11-13 | Dolmar Gmbh | Arrangement of an air filter and a diaphragm carburetor |
| DE112015005060T5 (en) * | 2014-11-06 | 2017-07-20 | Walbro Llc | pulse pump |
-
2018
- 2018-07-25 CN CN201821187467.1U patent/CN209163958U/en active Active
- 2018-11-23 WO PCT/CN2018/117210 patent/WO2020019602A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020019602A1 (en) | 2020-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BRPI0918598B8 (en) | connector and method for operating a medical fluid connector | |
| BRPI0918054B1 (en) | two-stroke engine with stratified clearance | |
| ATE264131T1 (en) | TWO-WAY FUEL FILTER ASSEMBLY AND ELEMENT THEREOF | |
| WO2007132311A3 (en) | Intake control device for internal combustion engine | |
| CN209163958U (en) | A kind of diaphragm type carburator | |
| CN202252175U (en) | Diaphragm type one-way ventilation control device | |
| CN201982726U (en) | Self-plugging multi-air source reducing valve | |
| WO2022227215A1 (en) | Atomizing apparatus and aerosol generating apparatus | |
| CN104048082A (en) | Gas range and gas flow control device therefor | |
| CN207365269U (en) | Voltage stabilization water filling device and air-conditioner water system | |
| JP2000282986A (en) | Bypass air passage structure of fuel injection device | |
| CN103557100A (en) | Air filter capable of separating oil from vapor | |
| CN208579001U (en) | A kind of gas valve | |
| TWM608691U (en) | Single intake passage type air intake regulating structure | |
| CN212051886U (en) | Sewing machine oil seal and sewing machine | |
| CN215720908U (en) | Novel full-closed leakage-proof gate valve | |
| CN105464841A (en) | Carburetor | |
| CN203532112U (en) | Air filter capable of achieving oil and gas separation | |
| CN218093666U (en) | Throttling one-way throttle valve | |
| CN212804468U (en) | Novel proportional valve | |
| CN206017086U (en) | The oblique tray type compressor that power-off has no abnormal sound | |
| CN216282078U (en) | Gas distribution assembly and gas water heater | |
| CN215059522U (en) | Control valve of gas stove | |
| CN217463405U (en) | Coaxial valve | |
| CN214946582U (en) | Triggering two-position five-way pneumatic control reversing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |