CN213235264U - Diaphragm type carburetor with air cleaning oil way - Google Patents
Diaphragm type carburetor with air cleaning oil way Download PDFInfo
- Publication number
- CN213235264U CN213235264U CN202021936497.5U CN202021936497U CN213235264U CN 213235264 U CN213235264 U CN 213235264U CN 202021936497 U CN202021936497 U CN 202021936497U CN 213235264 U CN213235264 U CN 213235264U
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- Prior art keywords
- oil
- carburetor
- oil outlet
- mounting seat
- engine
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- Expired - Fee Related
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- 238000004140 cleaning Methods 0.000 title claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 11
- 239000003921 oil Substances 0.000 description 109
- 238000010586 diagram Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a diaphragm type carburetor with air cleaning oil circuit, including carburetor body, mount pad A, mount pad B and oil cup, be equipped with mixing chamber, air inlet and gas outlet on the carburetor body, be equipped with the measurement chamber on the mount pad A, the oil feed passageway, oil outlet A, inlet tube and oil return pipe, the measurement chamber sets up on the mount pad A corresponds mount pad B one side, oil outlet A sets up on mount pad A corresponds carburetor body one side, still be equipped with oil outlet B on the mount pad A, oil outlet B and measurement chamber set up on the same side of mount pad A, oil outlet B and oil outlet A switch on, oil outlet B still switches on with the measurement chamber, oil outlet B is located the top of measurement chamber all the time when the carburetor is installed behind the engine and the engine is in normal operating position, oil outlet A is located the side of measurement chamber, the utility model provides a carburetor, the oil outlet B is positioned above the metering cavity, so that the air at the oil outlet B can be conveniently pumped out by the engine, and the working performance of the engine is stable.
Description
Technical Field
The utility model relates to a diaphragm formula carburetor with air purge oil circuit.
Background
The carburetor is a very important accessory of the gasoline engine, is the heart of the engine, mixes a certain amount of fuel with air, and respectively provides required mixed gas according to the requirements of the engine under various working conditions so as to ensure the normal operation of the engine. At present, the types of carburetors in the market are various, and diaphragm carburetors and float carburetors are available.
The conventional diaphragm carburetor (as shown in fig. 1-3) includes a carburetor body 100, a mounting seat a 200, a mounting seat B300, and an oil cup 400, which are sequentially disposed, wherein a mixing chamber 110 is disposed in the carburetor body 100, an air inlet 111 and an air outlet 112 communicated with the mixing chamber 110 are disposed on the carburetor body 100, a main nozzle 120 and an oil needle 130 are disposed in the carburetor body 100, the main nozzle 120 is communicated with the mixing chamber 110, an oil absorption diaphragm 500 is disposed between the mounting seat a 200 and the mounting seat B300, a metering chamber 210, an oil inlet passage 220, an oil outlet 230, an oil inlet pipe 240, and an oil return pipe 250 are disposed on the mounting seat a 200, the metering chamber 210 is disposed on a side of the mounting seat a 200 corresponding to the mounting seat B300, the oil outlet 230 is disposed on a side of the mounting seat a 200 corresponding to the carburetor body 100, and is used for communicating the main nozzle 120 and the metering chamber 210, the valve needle 221 is arranged in the oil inlet channel 220, the oil inlet pipe 240 is communicated with the metering cavity 210 through the oil inlet channel 220, and the metering cavity 210 is communicated with the oil return pipe 250 through the oil cup 400. The carburetor is installed on an engine, most of the carburetors are installed with oil cups facing downwards, the oil outlet hole is positioned above the metering cavity, so that oil can be conveniently discharged, and due to the uncertainty of the installation position of the carburetor relative to the engine, when the engine is in a normal working position, if the carburetor oil cups are installed forwards or backwards, the oil outlet hole is positioned at the side edge of the metering cavity, air generated in the metering chamber is not easy to discharge, so that unsmooth oil discharge is caused, and the performance of the engine is unstable during working.
Disclosure of Invention
The utility model aims at: in order to overcome the defects of the prior art, the utility model provides a diaphragm type carburetor with air cleaning oil way for oil outlet B is located measurement chamber top all the time.
The technical scheme of the utility model: a diaphragm type carburetor with an air cleaning oil path comprises a carburetor body, a mounting seat A, a mounting seat B and an oil cup which are sequentially arranged, wherein a mixing cavity is arranged in the carburetor body, an air inlet and an air outlet which are communicated with the mixing cavity are formed in the carburetor body, a main nozzle and an oil needle are arranged in the carburetor body, one end of the main nozzle is communicated with the mixing cavity, an oil absorption diaphragm is arranged between the mounting seat A and the mounting seat B, a metering cavity, an oil inlet channel, an oil outlet A, an oil inlet pipe and an oil return pipe are arranged on the mounting seat A, the metering cavity is arranged on one side, corresponding to the mounting seat B, of the mounting seat A, the oil outlet A is arranged on one side, corresponding to the carburetor body, of the mounting seat A and communicated with the other end of the main nozzle, a valve needle is arranged in the oil inlet channel, the oil inlet pipe is communicated with the metering cavity through the oil inlet channel, and the metering, the carburetor is characterized in that the mounting seat A is further provided with an oil outlet B, the oil outlet B and the metering cavity are arranged on the same side face of the mounting seat A, the outlet end of the oil outlet B is communicated with the oil outlet A through an oil flow passage, the inlet end of the oil outlet B is communicated with the metering cavity, the oil outlet B is always located above the metering cavity when the carburetor is mounted on the engine and the engine is in a normal working position, and the oil outlet A is located on the side edge of the metering cavity.
Specifically, after the carburetor is mounted on the engine, the oil cup of the carburetor is disposed rearward.
Specifically, after the carburetor is mounted on the engine, the oil cup of the carburetor is disposed forward.
Specifically, after the carburetor is mounted on the engine, the air outlet of the carburetor faces upward or the air inlet of the carburetor faces upward.
The technical scheme of the utility model for the produced beneficial effect of prior art, the fuel gets into from advancing oil pipe, flows into the measurement chamber through the oil feed passageway, and the fuel in the measurement intracavity passes through oil outlet B and flows, through oil flow way, oil outlet A, main nozzle in proper order, enters into the hybrid chamber in with the air mixture after, reentrant engine combustion does work, outside output power. The oil outlet B is always positioned above the metering cavity and is communicated with the metering cavity, a small amount of air in the metering cavity can be timely pumped out from the oil outlet B during the work of the engine, the air in the metering cavity can not be accumulated at the position of the oil outlet B for a long time, and the performance of the engine is stable during the work.
Drawings
FIG. 1 is a diagram of the background art of the present invention;
FIG. 2 is a diagram of the background art of the present invention;
FIG. 3 is an internal structure diagram of a mounting base A in the background art of the present invention;
FIG. 4 is a block diagram of an embodiment of the present invention;
FIG. 5 is a block diagram of an embodiment of the present invention;
fig. 6 is a diagram showing a state in which a carburetor according to embodiment 1 of the present invention is mounted on an engine;
fig. 7 is a schematic view of the fuel flow direction inside the mounting seat a in embodiment 1 of the present invention;
fig. 8 is a structural view of the oil outlet B side of the mounting seat a in embodiment 1 of the present invention;
fig. 9 is a structural view of the oil outlet a side of the mounting seat a in embodiment 1 of the present invention;
fig. 10 is a diagram showing a state in which a carburetor according to embodiment 2 of the present invention is mounted on an engine;
fig. 11 is a schematic view of the fuel flow direction inside the mounting seat a in embodiment 2 of the present invention;
fig. 12 is a structural view of the oil outlet B side of the mounting seat a in embodiment 2 of the present invention;
fig. 13 is a structural view of the oil outlet a side of the mounting seat a in embodiment 2 of the present invention;
fig. 14 is an isometric view of a carburetor of embodiment 3 of the present invention mounted on an engine;
fig. 15 is a structural view of the oil outlet B side of the mounting seat a in embodiment 3 of the present invention;
fig. 16 is a structural view of the oil outlet a side of the mounting seat a in embodiment 3 of the present invention;
fig. 17 is an isometric view of a carburetor of embodiment 4 of the present invention mounted on an engine;
fig. 18 is an internal structure view of a mounting seat a in embodiment 4 of the present invention;
fig. 19 is a structural diagram of an oil inlet channel side of the mounting seat a in embodiment 4 of the present invention.
The carburetor comprises a carburetor body 100, a mounting seat A200, a mounting seat B300, an oil cup 400, a mixing cavity 110, an air inlet 111, an air outlet 112, a main nozzle 120, an oil needle 130, an oil absorption diaphragm 500, a metering cavity 210, an oil inlet channel 220, an oil outlet 230, an oil inlet pipe 240, an oil return pipe 250 and a valve needle 221;
the carburetor body 100 ', the mounting seat a 200', the mounting seat B300 ', the oil cup 400', the mixing chamber 110 ', the air inlet 111', the air outlet 112 ', the main nozzle 120', the oil needle 130 ', the oil suction diaphragm 500', the metering chamber 210 ', the oil inlet passage 220', the oil outlet a 230 ', the oil inlet pipe 240', the oil return pipe 250 ', the valve needle 221', the oil outlet B260 ', and the oil passing passage 270'.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indications (such as up, down, front, and back … …) in the description of the present invention are only used to explain the relative position relationship between the components, the movement, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions related to "a", "B", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
As shown in fig. 4-19, the utility model discloses a diaphragm carburetor with air scavenging oil circuit, including the carburetor body 100 ', mount pad a 200 ', mount pad B300 ' and the oil cup 400 ' that set gradually, establish mixing chamber 110 ' in the carburetor body 100 ', be equipped with air inlet 111 ' and gas outlet 112 ' that switch on with mixing chamber 110 ' on carburetor body 100 ', install main nozzle 120 ' and oil needle 130 ' in carburetor body 100 ', main nozzle 120 ' one end switches on with mixing chamber 110 ', be equipped with oil absorption diaphragm 500 ' between mount pad a 200 ' and mount pad B300 ', be equipped with measurement chamber 210 ', oil feed passageway 220 ', oil outlet a 230 ', oil inlet pipe 240 ' and oil return pipe 250 ' on mount pad a 200 ', measurement chamber 210 ' sets up on the corresponding mount pad B300 ' one side of mount pad a 200 ', the oil outlet hole A230 'is arranged on one side of the mounting seat A200' corresponding to the carburetor body 100 'and is communicated with the other end of the main nozzle 120', a valve needle 221 'is arranged at the position of the oil inlet channel 220', the oil inlet pipe 240 'is communicated with the metering cavity 210' through the oil inlet channel 220 ', the metering cavity 210' is communicated with the oil return pipe 250 'through the oil cup 400', the mounting seat A200 'is also provided with an oil outlet hole B260', the oil outlet hole B260 'and the metering cavity 210' are arranged on the same side surface of the mounting seat A200 ', the outlet end of the oil outlet hole B260' is communicated with the oil outlet hole A230 'through the oil flow channel 270', the inlet end of the oil outlet hole B260 'is communicated with the metering cavity 210', and the oil outlet hole B260 'is always positioned above the metering cavity 210' when the carburetor is arranged on the engine and the engine is in a normal working position, the oil outlet A is positioned on the side edge of the metering cavity.
Specifically, the normal operating position of the engine is a normal state of a general-purpose engine, in which a crankcase of the engine is located at the lower part, a cylinder or a cylinder head is located at the upper part (as shown in fig. 6 and 10), and other positions are abnormal operating positions.
In the embodiment 1 of the carburetor according to the present invention, which is mounted on the rear of the engine, as shown in fig. 6 to 9, the oil cup 400' of the carburetor is disposed rearward.
In the embodiment 2 of the carburetor of the present invention, which is installed behind an engine, as shown in fig. 10 to 13, an oil cup 400' of the carburetor is disposed forward.
In the embodiment 3 of the carburetor of the present invention, which is installed behind an engine, as shown in fig. 14 to 16, the air outlet 112' of the carburetor is disposed upward.
In the embodiment 4 of the carburetor of the present invention, which is installed behind an engine, as shown in fig. 17 to 19, the air inlet 111' of the carburetor is disposed upward.
Fuel oil enters from the oil inlet pipe 240 ', flows into the metering cavity 210 ' through the oil inlet channel 220 ', flows out from the metering cavity 210 ' through the oil outlet B260 ', sequentially passes through the oil passing flow channel 270 ', the oil outlet A230 ' and the main nozzle 120 ', enters the mixing cavity 110 ', is mixed with air, then enters the engine to burn and do work, and outputs power outwards. The oil outlet B260 'is always positioned above the metering cavity 210' and is communicated with the metering cavity, a small amount of air in the metering cavity 210 'can be timely pumped out from the oil outlet B260' during the work of the engine, the air in the metering cavity 210 'cannot be accumulated at the position of the oil outlet B260' for a long time, oil is smoothly discharged, and the performance of the engine is stable during the work.
Claims (4)
1. A diaphragm type carburetor with an air cleaning oil path comprises a carburetor body, a mounting seat A, a mounting seat B and an oil cup which are sequentially arranged, wherein a mixing cavity is arranged in the carburetor body, an air inlet and an air outlet which are communicated with the mixing cavity are formed in the carburetor body, a main nozzle and an oil needle are arranged in the carburetor body, one end of the main nozzle is communicated with the mixing cavity, an oil absorption diaphragm is arranged between the mounting seat A and the mounting seat B, a metering cavity, an oil inlet channel, an oil outlet A, an oil inlet pipe and an oil return pipe are arranged on the mounting seat A, the metering cavity is arranged on one side, corresponding to the mounting seat B, of the mounting seat A, the oil outlet A is arranged on one side, corresponding to the carburetor body, of the mounting seat A and communicated with the other end of the main nozzle, a valve needle is arranged in the oil inlet channel, the oil inlet pipe is communicated with the metering cavity through the oil inlet channel, and the metering, the method is characterized in that: the carburetor is characterized in that the mounting seat A is further provided with an oil outlet B, the oil outlet B and the metering cavity are arranged on the same side face of the mounting seat A, the outlet end of the oil outlet B is communicated with the oil outlet A through an oil flow passage, the inlet end of the oil outlet B is communicated with the metering cavity, the oil outlet B is always located above the metering cavity when the carburetor is mounted on the engine and the engine is in a normal working position, and the oil outlet A is located on the side edge of the metering cavity.
2. The diaphragm carburetor of claim 1, wherein: after the carburetor is mounted on the engine, an oil cup of the carburetor is disposed rearward.
3. The diaphragm carburetor of claim 1, wherein: after the carburetor is installed on the engine, an oil cup of the carburetor is arranged forward.
4. The diaphragm carburetor of claim 1, wherein: after the carburetor is installed on the engine, the air outlet of the carburetor faces upwards or the air inlet of the carburetor faces upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936497.5U CN213235264U (en) | 2020-09-07 | 2020-09-07 | Diaphragm type carburetor with air cleaning oil way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936497.5U CN213235264U (en) | 2020-09-07 | 2020-09-07 | Diaphragm type carburetor with air cleaning oil way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213235264U true CN213235264U (en) | 2021-05-18 |
Family
ID=75871469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021936497.5U Expired - Fee Related CN213235264U (en) | 2020-09-07 | 2020-09-07 | Diaphragm type carburetor with air cleaning oil way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213235264U (en) |
-
2020
- 2020-09-07 CN CN202021936497.5U patent/CN213235264U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 |