CN110273785B - Carburetor easy to start - Google Patents
Carburetor easy to start Download PDFInfo
- Publication number
- CN110273785B CN110273785B CN201910680882.3A CN201910680882A CN110273785B CN 110273785 B CN110273785 B CN 110273785B CN 201910680882 A CN201910680882 A CN 201910680882A CN 110273785 B CN110273785 B CN 110273785B
- Authority
- CN
- China
- Prior art keywords
- rotary valve
- rocker arm
- valve rocker
- handle
- 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.)
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Links
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008719 thickening Effects 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
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
- F02M7/14—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle
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)
- Means For Warming Up And Starting Carburetors (AREA)
Abstract
The invention discloses an easily started carburetor, wherein an abutting part is arranged at the edge position of a rotary valve rocker arm close to a rotary valve rocker arm handle, and the abutting part is provided with a lower edge and a lower surface; the rotary valve rocker arm handle is provided with a cylindrical surface and a first inclined surface, when the rotary valve rocker arm handle is in a first position, the first inclined surface is in butt joint with the lower edge, and when the rotary valve rocker arm handle is in a second position, the cylindrical surface is in butt joint with the lower surface and is used for lifting the rotary valve rocker arm. Through manual promotion rotary valve rocking arm handle, make rotary valve rocking arm handle to rotary valve rocking arm direction remove, the lower border on the rotary valve rocking arm is upwards slided along first inclined plane for first inclined plane, when reaching the second position, and the lower surface is located the face of cylinder, and the rotary valve rocking arm lifts, makes main oil needle shift up in the needle file for the aperture of idle speed oil spout increases, and the play oil volume increases, realizes the effect that the engine starts the enrichment, and then makes the engine easily start.
Description
Technical Field
The invention relates to the technical field of carburetors, in particular to an easily started carburetor.
Background
Currently, in order to cope with increasingly stringent emissions regulations and requirements of engines on fuel mixing ratios, carburetor manufacturers generally set a carburetor at a certain fuel supply flow rate, and after the setting is correct, the carburetor mixes fuel with air to supply the fuel to the engine for combustion and meets the requirements of the emissions regulations. However, because of customer start-up concerns, carburetors typically turn rich oil at idle to ensure customer start-up convenience. This increases exhaust emissions and excessive fuel consumption. In order to solve the problems, the carburetor structure is improved, so that the carburetor has better starting effect, and the fuel quantity of an idle system is effectively reduced, so that the purposes of reducing fuel consumption and ensuring the starting performance of an engine are achieved, and the engine can meet emission regulations.
Therefore, it would be desirable to provide an easy-to-start carburetor that is easy to start, saves fuel, and reduces emissions.
Disclosure of Invention
In view of this, the present invention provides an easy-to-start carburetor that is easy to start, saves fuel, and reduces emissions.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an easily started carburetor, wherein a rotary valve rocker arm and a rotary valve rocker arm handle are arranged at the upper part of the carburetor, and the rotary valve rocker arm is integrally connected with a rotary valve for controlling air inflow; the rotary valve rocker arm is also provided with an accelerator cable bracket, and the accelerator cable bracket is connected with an accelerator through an accelerator cable; the carburetor is internally provided with a main oil needle and a needle seat, the top of the main oil needle is fixedly connected with a rotary valve rocker arm through a rotary valve connecting screw, the bottom of the main oil needle is inserted into the needle seat and moves up and down in the needle seat so as to adjust the opening of an idle oil injection port arranged on the side wall of the needle seat, a rotary valve rocker arm handle penetrates through and is connected in a sleeve seat in a sliding manner, and the sleeve seat is integrally connected to the carburetor;
the rotary valve rocker arm is provided with an abutting part at the edge position close to the rotary valve rocker arm handle, and the abutting part is provided with a lower edge and a lower surface;
the rotary valve rocker arm handle is provided with a cylindrical surface and a first inclined surface, when the rotary valve rocker arm handle is in a first position, the first inclined surface is in butt joint with the lower edge, and when the rotary valve rocker arm handle is in a second position, the cylindrical surface is in butt joint with the lower surface, and the rotary valve rocker arm handle is used for lifting the rotary valve rocker arm.
Compared with the prior art, the invention discloses the carburetor easy to start, the rotary valve rocker arm handle is manually pushed to move towards the rotary valve rocker arm, the lower edge of the rotary valve rocker arm slides upwards along the first inclined plane relative to the first inclined plane, when the lower surface of the rotary valve rocker arm is positioned on the cylindrical surface and is lifted up, so that the main oil needle moves upwards in the needle seat, the opening of the idle oil injection port is increased, the oil output is increased, the effect of starting and enriching the engine is realized, and the engine is easy to start.
Further, the rotary valve rocker handle comprises: the pressing part is connected with one end of the cylindrical part in an integral mode, the cylindrical part penetrates through the sleeve seat and is connected with the sleeve seat in a sliding mode, the outer surface of the cylindrical part is the cylindrical surface, the other end of the cylindrical part is provided with the first inclined surface, and the first inclined surface is connected with the cylindrical surface.
Further, a second inclined plane is arranged at the other end of the cylindrical part, and the second inclined plane is connected with the first inclined plane; the cylindrical part is close to the position of the second inclined plane and is provided with a clamping groove, the edge of the rocker arm of the rotary valve is provided with a clamping part, the outer surface of the clamping part is abutted to the second inclined plane in the first position, and the clamping part is clamped with the clamping groove in the second position.
The rotary valve rocker arm and the rotary valve rocker arm handle can be effectively fixed at the second position, the phenomenon of rollback caused by loosening of the rotary valve rocker arm handle just started by the engine is prevented, and normal operation of the rotary valve rocker arm and the rotary valve rocker arm handle is ensured.
Further, a guide groove is formed in the outer surface of the cylindrical portion along the length direction of the cylindrical portion, a guide pin is arranged on the sleeve seat at a position corresponding to the guide groove, and the guide pin is in sliding connection with the guide groove.
The technical scheme has the beneficial effects that the linear movement of the rotary valve rocker arm handle is facilitated, and the accuracy of the action position of the rotary valve rocker arm is ensured.
Further, a return spring is arranged between the pressing part and the sleeve seat.
After the engine is started, the throttle is increased, namely the throttle cable support on the rotary valve rocker is pulled through the throttle cable, so that the rotary valve rocker rotates, the clamping part is separated from the clamping groove, the rotary valve rocker handle automatically returns to the initial position under the action of the return spring, and meanwhile, the main oil needle returns to the initial position to wait for the next operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an easy-to-start carburetor according to the present invention.
Fig. 2 is a schematic top view of fig. 1.
Fig. 3-4 are schematic structural views of a rotary valve rocker arm.
FIG. 5 is a schematic view of a rotary valve rocker handle.
Fig. 6-7 are schematic structural views of a rotary valve rocker arm and a rotary valve rocker arm handle in a first position.
Fig. 8-9 are schematic structural views of a rotary valve rocker arm and a rotary valve rocker arm handle in a second position.
Wherein: the device comprises a 1-rotary valve rocker arm, an 11-abutting part, a 111-lower edge, a 112-lower surface, a 12-clamping part, a 2-rotary valve rocker arm handle, a 21-pressing part, a 22-cylindrical part, a 201-cylindrical surface, a 202-first inclined surface, a 203-second inclined surface, a 204-clamping groove, a 205-guide groove, a 3-accelerator cable bracket, a 4-main oil needle, a 5-needle seat, a 6-connecting screw, a 7-sleeve seat, an 8-guide pin and a 9-reset spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention discloses an easily started carburetor, wherein a rotary valve rocker arm 1 and a rotary valve rocker arm handle 2 are arranged at the upper part of the carburetor, and the rotary valve rocker arm 1 is integrally connected with a rotary valve for controlling air inflow; the rotary valve rocker arm 1 is also provided with an accelerator cable bracket 3, and the accelerator cable bracket 3 is connected with an accelerator through an accelerator cable; the carburetor is internally provided with a main oil needle 4 and a needle seat 5, the top of the main oil needle 4 is fixedly connected with a rotary valve rocker arm 1 through a rotary valve connecting screw 6, the bottom of the main oil needle 4 is inserted into the needle seat 5 and moves up and down in the needle seat 5 so as to adjust the opening of an idle oil injection port formed on the side wall of the needle seat 5, a rotary valve rocker arm handle 2 penetrates through and is slidably connected in a sleeve seat 7, and the sleeve seat 7 is integrally connected to the carburetor;
the rotary valve rocker arm 1 is provided with an abutting part 11 at the edge position close to the rotary valve rocker arm handle 2, and the abutting part 11 is provided with a lower edge 111 and a lower surface 112;
the rotary valve rocker arm handle 2 is provided with a cylindrical surface 201 and a first inclined surface 202, the first inclined surface 202 being in abutment with the lower edge 111 in the first position of the rotary valve rocker arm handle 2 and the cylindrical surface 201 being in abutment with the lower surface 112 in the second position for lifting the rotary valve rocker arm 1.
The rotary valve rocker handle 2 comprises: the pressing part 21 and the cylindrical part 22, the one end and the pressing part 21 of cylindrical part 22 are connected integratively, and cylindrical part 22 runs through and sliding connection is in sleeve seat 7, and cylindrical part 22 surface is the face of cylinder 201, and the other end of cylindrical part 22 is provided with first inclined plane 202, and first inclined plane 202 links up with face of cylinder 201.
The other end of the cylindrical part 22 is provided with a second inclined plane 203, and the second inclined plane 203 is connected with the first inclined plane 202; the cylindrical portion 22 is provided with a clamping groove 204 near the second inclined surface 203, the edge of the rotary valve rocker arm 1 is provided with a clamping portion 12, the outer surface of the clamping portion 12 is abutted against the second inclined surface 203 in the first position, and the clamping portion 12 is clamped with the clamping groove 204 in the second position.
The outer surface of the cylindrical part 22 is provided with a guide groove 205 along the length direction, a guide pin 8 is arranged on the sleeve seat 7 corresponding to the guide groove 205 in position, and the guide pin 8 is in sliding connection with the guide groove 205.
A return spring 9 is provided between the pressing portion 21 and the sleeve mount 7.
The working principle of the carburetor easy to start provided by the invention is as follows:
manually pushing the rotary valve rocker arm handle 2 to enable the rotary valve rocker arm handle 2 to move towards the rotary valve rocker arm 1, at the moment, the guide pin slides relative to the guide groove, the lower edge 111 on the rotary valve rocker arm 1 slides upwards relative to the first inclined plane 202 along the first inclined plane 202, the reset spring 9 compresses, the clamping part 12 slides upwards relative to the second inclined plane 203 along the second inclined plane 203, when reaching the second position, the lower surface 112 is positioned on the cylindrical surface 201, the clamping part 12 is clamped in the clamping groove 204 to fix the rotary valve rocker arm handle, the rotary valve rocker arm handle is prevented from being retracted due to the elastic force of the reset spring 9, at the moment, the rotary valve rocker arm 1 is lifted up, the main oil needle 4 moves upwards in the needle seat 5, the opening degree of an idle oil injection port is increased, the oil outlet quantity is increased, the effect of engine starting and thickening is achieved, and the engine is easy to start.
After the engine starts, only the throttle is increased, namely the throttle cable support 3 on the rotary valve rocker is pulled through the throttle cable, so that the rotary valve rocker 1 rotates, the opening of the rotary valve integrally connected with the rotary valve rocker 1 increases, the air quantity increases when the engine starts, the engine starting speed is improved, meanwhile, when the rotary valve rocker 1 rotates, the clamping part 12 is separated from the clamping groove 204, the rotary valve rocker handle 2 automatically returns to the initial position under the action of the return spring 9, and meanwhile, the main oil needle 4 returns to the initial position, the normal oil supply of the carburetor is ensured under the idling condition, the fuel consumption is reduced, and the emission is reduced.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. An easily started carburetor, wherein a rotary valve rocker arm (1) and a rotary valve rocker arm handle (2) are arranged at the upper part of the carburetor, and the rotary valve rocker arm (1) is integrally connected with a rotary valve for controlling air inflow; the rotary valve rocker arm (1) is also provided with an accelerator cable bracket (3), and the accelerator cable bracket (3) is connected with an accelerator through an accelerator cable; the carburetor is internally provided with a main oil needle (4) and a needle seat (5), the top of the main oil needle (4) is fixedly connected with a rotary valve rocker arm (1) through a rotary valve connecting screw (6), the bottom of the main oil needle (4) is inserted into the needle seat (5) and moves up and down in the needle seat (5) so as to adjust the opening of an idling oil injection port arranged on the side wall of the needle seat (5), and the carburetor is characterized in that the rotary valve rocker arm handle (2) penetrates through and is slidably connected in a sleeve seat (7), and the sleeve seat (7) is integrally connected with the carburetor;
an abutting part (11) is arranged at the edge position of the rotary valve rocker arm (1) close to the rotary valve rocker arm handle (2), and the abutting part (11) is provided with a lower edge (111) and a lower surface (112);
the rotary valve rocker arm handle (2) is provided with a cylindrical surface (201) and a first inclined surface (202), the first inclined surface (202) is abutted with the lower edge (111) when the rotary valve rocker arm handle (2) is in a first position, and the cylindrical surface (201) is abutted with the lower surface (112) when the rotary valve rocker arm handle is in a second position, so that the rotary valve rocker arm (1) is lifted;
the rotary valve rocker handle (2) comprises: the pressing device comprises a pressing part (21) and a cylindrical part (22), wherein one end of the cylindrical part (22) is integrally connected with the pressing part (21), the cylindrical part (22) penetrates through and is slidably connected in the sleeve seat (7), the outer surface of the cylindrical part (22) is the cylindrical surface (201), the other end of the cylindrical part (22) is provided with a first inclined surface (202), and the first inclined surface (202) is connected with the cylindrical surface (201);
a second inclined plane (203) is arranged at the other end of the cylindrical part (22), and the second inclined plane (203) is connected with the first inclined plane (202); a clamping groove (204) is formed in the position, close to the second inclined surface (203), of the cylindrical part (22), a clamping part (12) is arranged at the edge of the rotary valve rocker arm (1), the outer surface of the clamping part (12) is abutted against the second inclined surface (203) in the first position, and the clamping part (12) is clamped with the clamping groove (204) in the second position;
the outer surface of the cylindrical part (22) is provided with a guide groove (205) along the length direction, a guide pin (8) is arranged on the sleeve seat (7) corresponding to the guide groove (205), and the guide pin (8) is in sliding connection with the guide groove (205);
a return spring (9) is arranged between the pressing part (21) and the sleeve seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680882.3A CN110273785B (en) | 2019-07-26 | 2019-07-26 | Carburetor easy to start |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680882.3A CN110273785B (en) | 2019-07-26 | 2019-07-26 | Carburetor easy to start |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110273785A CN110273785A (en) | 2019-09-24 |
| CN110273785B true CN110273785B (en) | 2024-01-30 |
Family
ID=67965397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910680882.3A Active CN110273785B (en) | 2019-07-26 | 2019-07-26 | Carburetor easy to start |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110273785B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942160A (en) * | 1996-10-29 | 1999-08-24 | U.S.A. Zama, Inc. | Rotary throttle valve type carburetor |
| CN201448164U (en) * | 2009-06-23 | 2010-05-05 | 浙江瑞星化油器制造有限公司 | Changeable carburetor of injection nozzle |
| CN201661383U (en) * | 2010-02-09 | 2010-12-01 | 陈俭敏 | Start-up enrichment system and carburetor employing same |
| CN102828854A (en) * | 2012-09-25 | 2012-12-19 | 陈其安 | Simple starting carburetor |
| CN103883430A (en) * | 2012-12-22 | 2014-06-25 | 安德烈亚斯·斯蒂尔两合公司 | Carburetor For A Hand-held Work Device And Hand-held Work Device |
| CN204003157U (en) * | 2014-08-22 | 2014-12-10 | 福建华龙化油器有限公司 | Adjustable and the seal arrangement of a kind of idling flow |
| CN204783327U (en) * | 2015-06-11 | 2015-11-18 | 江门华联工业有限公司 | Simply start rotation type carburetor |
| CN107859574A (en) * | 2017-11-16 | 2018-03-30 | 江门华联工业有限公司 | A kind of push type rotary valve carburetor |
| CN210289960U (en) * | 2019-07-26 | 2020-04-10 | 福建华龙化油器有限公司 | Carburetor easy to start |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6769670B2 (en) * | 2001-12-07 | 2004-08-03 | Walbro Japan, Inc. | Starting assembly for a carburetor |
| JP2006214307A (en) * | 2005-02-02 | 2006-08-17 | ＴＩ Ｗａｌｂｒｏ Ｊａｐａｎ株式会社 | Starting device of rotary throttle valve type carburetor |
| JP2006336571A (en) * | 2005-06-03 | 2006-12-14 | ＴＩ Ｗａｌｂｒｏ Ｊａｐａｎ株式会社 | Starter of rotary throttle valve type carburetor |
| CN103032206B (en) * | 2013-01-04 | 2015-05-20 | 陈其安 | One-step start type carburetor |
-
2019
- 2019-07-26 CN CN201910680882.3A patent/CN110273785B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942160A (en) * | 1996-10-29 | 1999-08-24 | U.S.A. Zama, Inc. | Rotary throttle valve type carburetor |
| CN201448164U (en) * | 2009-06-23 | 2010-05-05 | 浙江瑞星化油器制造有限公司 | Changeable carburetor of injection nozzle |
| CN201661383U (en) * | 2010-02-09 | 2010-12-01 | 陈俭敏 | Start-up enrichment system and carburetor employing same |
| CN102828854A (en) * | 2012-09-25 | 2012-12-19 | 陈其安 | Simple starting carburetor |
| CN103883430A (en) * | 2012-12-22 | 2014-06-25 | 安德烈亚斯·斯蒂尔两合公司 | Carburetor For A Hand-held Work Device And Hand-held Work Device |
| CN204003157U (en) * | 2014-08-22 | 2014-12-10 | 福建华龙化油器有限公司 | Adjustable and the seal arrangement of a kind of idling flow |
| CN204783327U (en) * | 2015-06-11 | 2015-11-18 | 江门华联工业有限公司 | Simply start rotation type carburetor |
| CN107859574A (en) * | 2017-11-16 | 2018-03-30 | 江门华联工业有限公司 | A kind of push type rotary valve carburetor |
| CN210289960U (en) * | 2019-07-26 | 2020-04-10 | 福建华龙化油器有限公司 | Carburetor easy to start |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110273785A (en) | 2019-09-24 |
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