CN107165740B - Carburetor and manufacturing method thereof - Google Patents
Carburetor and manufacturing method thereof Download PDFInfo
- Publication number
- CN107165740B CN107165740B CN201710528214.XA CN201710528214A CN107165740B CN 107165740 B CN107165740 B CN 107165740B CN 201710528214 A CN201710528214 A CN 201710528214A CN 107165740 B CN107165740 B CN 107165740B
- Authority
- CN
- China
- Prior art keywords
- hole
- throttle
- throttle valve
- air
- carburetor
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 238000003754 machining Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- F02M17/40—Selection of particular materials for carburettors, e.g. sheet metal, plastic, or translucent materials
-
- 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
- F02M17/14—Carburettors with fuel-supply parts opened and closed in synchronism with engine stroke ; Valve carburettors
- F02M17/147—Valve carburettor with simultaneous air and fuel control
-
- 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
- F02M3/00—Idling devices for carburettors
- F02M3/08—Other details of idling devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention relates to a carburetor and a manufacturing method thereof, wherein the carburetor comprises a body, the body comprises a throttle valve hole, a screw fixing hole is arranged at the periphery of the throttle valve hole, a gap is arranged in the screw fixing hole, and the periphery of the throttle valve hole is arranged in a multi-step shape. The invention has the advantages of simple structure, low cost and environmental protection.
Description
Technical Field
The present invention relates to a carburetor and a manufacturing method thereof.
Background
The general carburetor is composed of an upper part, a middle part and a lower part, wherein the upper part is provided with an air inlet and a float chamber, the middle part is provided with a throat pipe, a measuring hole and a spray pipe, and the lower part is provided with a throttle valve and the like. The manufacturing method of the prior carburetor body comprises the following steps: preparing aluminum ingots and zinc ingots, die-casting, removing burrs, finish machining, assembling, packaging and leaving a warehouse. The existing carburetor is complex in structure and manufactured in a die-casting mode, the special die is large in cost investment, and a large amount of waste gas and waste oil are generated in the production process, so that serious pollution is caused.
Disclosure of Invention
The invention aims at improving the problems existing in the prior art, namely the technical problem to be solved by the invention is to provide a carburetor and a manufacturing method thereof, which not only have simple structure, but also have low cost and environmental protection.
In order to solve the technical problems, the technical scheme of the invention is as follows: the carburetor comprises a body, wherein the body comprises a throttle valve hole, a screw fixing hole is formed in the periphery of the throttle valve hole, a notch is formed in the screw fixing hole, and the periphery of the throttle valve hole is arranged in a multi-step shape.
Further, the center line of the screw fixing hole is parallel to the center line of the throttle hole.
Further, the air throttle shaft assembly comprises an air throttle shaft and an air throttle plate, and an air hole is formed in the air throttle plate.
Further, a throttle shaft is arranged in the throttle hole, one end of the throttle shaft is provided with a limiting device, the limiting surface of a limiting piece of the limiting device is a side surface of a stepped bulge where one end of the throttle shaft is located, and a connecting piece of the limiting device is provided with a driving rod assembly hole.
Further, the limiting piece and the connecting piece are arranged at an angle.
Further, a throat pipe sleeve is arranged in the throttle hole, and a main spray pipe is inserted into the side wall of the throat pipe sleeve.
Further, a working condition point air supplementing hole is arranged on the air inlet side beside the main spray pipe.
Further, the air-conditioning device further comprises a float chamber, wherein the float chamber is assembled with the body through a float chamber mounting buckle, and a sealing gasket is arranged between the float chamber and the body.
Further, in the manufacturing method of the carburetor, the body is formed by extrusion drawing of aluminum material.
Further, after the aluminum material is extruded and drawn to be formed, the aluminum material is cut off to obtain a body in a fixed length, then the body is subjected to finish machining, and finally the assembly of parts is carried out.
Compared with the prior art, the invention has the following beneficial effects: the screw fixing holes are provided with notches, the periphery of the throttle valve hole is provided with a plurality of steps, so that heat dissipation can be well realized, and the processing is convenient; an air hole is arranged on the throttle valve sheet so that the idle system can be better optimized and combusted, and the emission of harmful gas is reduced; the limit device and the limit surface are simple and smart in design to meet the requirements of different engines or different working loads, and the opening and closing degree of the throttle valve sheet is automatically controlled; the air inlet side of the main spray pipe is provided with a working condition point air-filling hole so as to supplement certain air according to different working condition point combustion and negative pressure of the engine, so that atomization and full combustion are better and harmful gas emission is reduced; the carburetor body has simple structure, low extrusion and drawing forming cost of the aluminum profile, contribution to heat dissipation, pollution reduction and environmental protection.
Drawings
FIG. 1 is a schematic front view of a structure of an embodiment of the present invention;
FIG. 2 is a schematic view of the A-A direction of FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic left-hand view of an embodiment of the present invention;
FIG. 4 is a schematic front view of a body according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a body according to an embodiment of the invention.
In the figure: 1-body, 2-throttle valve subassembly, 3-throat pipe cover, 4-sealing gasket, 5-float chamber, 6-main spray pipe, 7-float chamber installation knot, 8-shutoff piece, 9-operating mode point air vent, 10-inlet port, 11-spacing piece, 12-connection piece, 13-throttle valve hole, 14-air hole, 15-screw fixed orifices.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
As shown in the figure, the carburetor comprises a body, wherein the body comprises throttle valve holes, screw fixing holes are formed in the periphery of each throttle valve hole, the screw fixing holes are provided with notches, the periphery of each throttle valve hole is arranged to be multi-step, heat dissipation can be well achieved, machining is convenient, and the number of the screw fixing holes is two.
In order to simplify the structure of the carburetor body and facilitate the installation, the center line of the screw fixing hole is parallel to the center line of the throttle valve hole.
Further, the engine comprises a throttle shaft assembly, wherein the throttle shaft assembly comprises a throttle shaft and a throttle plate, and an air hole is formed in the throttle plate for enabling the idle system to be optimized and combusted better and reducing the emission of harmful gases.
In order to control the opening and closing degree of the throttle plate according to the actual working condition requirement, a throttle shaft is arranged in the throttle hole, one end of the throttle shaft is provided with a limiting device, the limiting surface of the limiting plate of the limiting device is a side surface of the stepped bulge where one end of the throttle shaft is located, and a driving rod assembly hole is formed in a connecting piece of the limiting device.
In order to meet the requirements of different engines and different working loads, the opening and closing degree of the throttle valve sheet is automatically controlled, for example, the throttle valve sheet is fully opened or partially opened or closed to limit the throttle valve sheet, so that the engine reaches the optimal running state, the limiting sheet and the connecting sheet are arranged at an angle, and the width, radian, length and the like of the limiting sheet can be designed simultaneously so as to realize the limiting control of different opening and closing degrees.
In order to facilitate processing, a throat pipe sleeve is arranged in the throttle hole, and a main spray pipe is inserted into the side wall of the throat pipe sleeve.
In order to supplement certain air according to different working condition points of the engine and negative pressure, better atomization and full combustion are realized, harmful gas emission is reduced, and a working condition point air supplementing hole is arranged at the air inlet side beside the main spray pipe.
Further, the carburetor further comprises a float chamber, the float chamber is assembled with the body through a float chamber mounting buckle for simplifying the structure of the carburetor, a sealing gasket is arranged between the float chamber and the body, and an oil inlet hole is formed in the float chamber.
Further, the blocking piece is arranged on the step-shaped bulge of the body, the sealing performance of the product can be guaranteed by the arrangement of the blocking piece, oil and air leakage can not occur outside, the product is communicated inside, the idling of the engine is enabled to be in smooth and medium transition from low speed to high speed, and the engine can not jump from low speed to high speed gradually.
In order to simplify the structure, reduce the cost and pollution, the body is extruded and drawn by aluminum materials in the manufacturing method of the carburetor.
Further, after the aluminum material is extruded and drawn to be formed, the aluminum material is cut off to obtain a body in a fixed length, then the body is subjected to finish machining, finally, the assembly of parts is carried out, and after the assembly is completed, the packaging and the warehouse-out are carried out.
Two screw fixing holes of the carburetor body are sleeved on screws of the engine, the end parts of the screw fixing holes are fixed by nuts, and the driving rod is sleeved in a driving rod assembling hole on the connecting sheet; in the use process of the engine, the driving rod drives the limiting device to rotate, and in the rotating process, the limiting piece is limited by one side face of the stepped bulge, so that the opening and closing degree of the throttle valve piece can be controlled to adapt to different engines or different working loads, and the engine can reach the optimal running state.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (1)
1. The carburetor is characterized in that: the throttle valve comprises a body, wherein the body comprises a throttle valve hole, a screw fixing hole is formed in the periphery of the throttle valve hole, a gap is formed in the screw fixing hole, and the periphery of the throttle valve hole is arranged in a multi-step shape;
the center line of the screw fixing hole is parallel to the center line of the throttle valve hole;
the air throttle shaft assembly comprises a throttle shaft and a throttle plate, and an air hole is formed in the throttle plate;
a throttle shaft is arranged in the throttle hole, one end of the throttle shaft is provided with a limiting device, the limiting surface of a limiting piece of the limiting device is a side surface of a stepped bulge where one end of the throttle shaft is located, and a connecting piece of the limiting device is provided with a driving rod assembly hole;
the limiting piece and the connecting piece are arranged at an angle;
a throat pipe sleeve is arranged in the throttle valve hole, and a main spray pipe is inserted into the side wall of the throat pipe sleeve;
an operating point air supplementing hole is arranged at the air inlet side beside the main spray pipe;
the air conditioner also comprises a float chamber, wherein the float chamber is assembled with the body through a float chamber mounting buckle, and a sealing gasket is arranged between the float chamber and the body;
the manufacturing method of the carburetor comprises the following steps: the body is formed by extruding and drawing aluminum materials;
after the aluminum material is extruded and drawn to be formed, the aluminum material is cut off to a fixed length to obtain a body, then the body is subjected to finish machining, and finally the assembly of parts is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528214.XA CN107165740B (en) | 2017-07-01 | 2017-07-01 | Carburetor and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528214.XA CN107165740B (en) | 2017-07-01 | 2017-07-01 | Carburetor and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107165740A CN107165740A (en) | 2017-09-15 |
| CN107165740B true CN107165740B (en) | 2023-11-03 |
Family
ID=59826732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710528214.XA Active CN107165740B (en) | 2017-07-01 | 2017-07-01 | Carburetor and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107165740B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111266804A (en) * | 2020-02-27 | 2020-06-12 | 瑞安市瑞微汽车配件厂 | Production process of oil-saving carburetor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB327953A (en) * | 1928-12-13 | 1930-04-14 | Graflich Schaffgotsch Sche Wer | Improvements in or relating to carburettors |
| CN2069486U (en) * | 1990-06-16 | 1991-01-16 | 长沙交通学院 | Idling gasoline-economizing and contamination reduction throttle valve |
| CN1730927A (en) * | 2004-08-04 | 2006-02-08 | 盐城市江动汽油机制造有限公司 | Carburetor |
| CN101672231A (en) * | 2008-09-11 | 2010-03-17 | 上海坤孚企业(集团)有限公司 | Light-weight carburetor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012019128A1 (en) * | 2012-09-28 | 2014-04-03 | Andreas Stihl Ag & Co. Kg | Adjustment lock for an adjustment screw on a carburetor |
-
2017
- 2017-07-01 CN CN201710528214.XA patent/CN107165740B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB327953A (en) * | 1928-12-13 | 1930-04-14 | Graflich Schaffgotsch Sche Wer | Improvements in or relating to carburettors |
| CN2069486U (en) * | 1990-06-16 | 1991-01-16 | 长沙交通学院 | Idling gasoline-economizing and contamination reduction throttle valve |
| CN1730927A (en) * | 2004-08-04 | 2006-02-08 | 盐城市江动汽油机制造有限公司 | Carburetor |
| CN101672231A (en) * | 2008-09-11 | 2010-03-17 | 上海坤孚企业(集团)有限公司 | Light-weight carburetor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107165740A (en) | 2017-09-15 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |