CN2729343Y - Universal carburetor for gasoline engine - Google Patents
Universal carburetor for gasoline engine Download PDFInfo
- Publication number
- CN2729343Y CN2729343Y CN 200420085136 CN200420085136U CN2729343Y CN 2729343 Y CN2729343 Y CN 2729343Y CN 200420085136 CN200420085136 CN 200420085136 CN 200420085136 U CN200420085136 U CN 200420085136U CN 2729343 Y CN2729343 Y CN 2729343Y
- Authority
- CN
- China
- Prior art keywords
- spindle
- enriching
- jet pipe
- temperature sensing
- top cover
- 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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Abstract
The utility model relates to a universal carburetor for gasoline engine which comprises a float chamber and a mixing chamber; an enriching pipe line for communicating the float chamber and the mixing chamber is added; the enriching pipe line is provided with a start up jet pipe (5) and an enriching valve (6); the enriching valve (6) is provided with electrode slices (62) contacting each other, a PCT thermal sensitive ceramic (64) and a temperature sensing component (65); one side of the temperature sensing component is a movement end (651) contacting expanding substance; the movement end is in a connected relation with a gasoline needle (69); the annular space area between the gasoline needle (69) and the start up jet pipe (5) is variable, and a spring back mechanism causing the gasoline needle to reset is provided between the movement end (651) and a fixture. The carburetor of the utility model can automatically regulate the size of the passage of the enriching pipe line along with the temperature rising of the engine and the variation of the ambient temperature; as a consequence, required ideal enriching effect can be realized.
Description
Technical field
The utility model relates to a kind of Carburetor, particularly a kind of general-purpose petrol engine Carburetor.
Background technique
Common general-purpose petrol engine Carburetor, as shown in Figure 1, fuel oil enters the main jet pipe 3 from float chamber 4, air enters in the main jet pipe 3 through De Pao Droplets hole on suction port, the main jet pipe sidewall, make fuel-oil atmozation, the fuel oil after the atomizing enters 2 burnings of motor mixing chamber by main jet pipe 3.
When the motor proper functioning, can be easy to the oil-gas ratio that keeps certain, thereby the working state that always keeps motor, but when engine start, the Carburetor body is colder, special under the lower situation of ambient temperature, fuel-oil atmozation amount in the main jet pipe is little, so can not meet the requirements of oil-gas ratio, can not the normal engine device, this moment common Carburetor be by the air inflow of manually turning suction port down increase described oil-gas ratio (also claim: enriching), regulative mode mainly is by manual tune Air strangler spindle 11, drives chock plate 12 motions, suction port is diminished, but the regulated quantity of this mean of calculating is limited, if ambient temperature is too low, the atomization quantity of fuel oil is not enough, can only increase the amount of fuel that enters main jet pipe 3 by increasing the number of starts, thereby increase the atomization quantity of fuel oil, petrol engine is started, enter normal working.
The shortcoming of above structure also is, needs manual operations, and the choke enriching can not change with the engine warm-up process, causes the enriching effect undesirable.
By said structure as can be known, such Carburetor can not satisfy the needs of proper functioning, brings a lot of inconvenience to the user, also can infringement be arranged to motor.
Summary of the invention
The utility model has overcome the shortcoming of prior art, and a kind of general-purpose petrol engine Carburetor that electricity starts automatic enrichment-system that has is provided.
In order to achieve the above object, float chamber and the mixing chamber of comprising of the present utility model, increase the enriching pipeline that is communicated with between float chamber and the mixing chamber, be provided with the startup jet pipe in the enriching pipeline, upgrading valve is provided with and can inserts the spindle that starts in the jet pipe coaxially, described spindle is divided into two sections with the startup jet pipe with the enriching pipeline, the enriching pipeline of spindle one side can be connected with another section enriching pipeline by starting jet pipe, the structure of described upgrading valve is: two electrode slicess of opening the automatic energising in back at engine ignition switch, and the PTC thermal sensitive ceramics that accompanies between them forms and electrically contacts, the PTC thermal sensitive ceramics contacts with temperature sensing part, the outer surface of described temperature sensing part is the temperature sensing part shell, be surrounded by in the described temperature sensing part shell and meet the bigger dilatant of rates of thermal expansion, one side of temperature sensing part shell is a tache motorice, described tache motorice contacts with described dilatant, described tache motorice and described spindle are the motion annexations, described spindle is the less taper spindle of tip radius, starting jet pipe is cylindrical hole, perhaps, through hole on the described startup jet pipe is the bigger round taper hole of upper end radius, described spindle is a cylindrical body, like this, spindle is in inserting startup jet pipe process, and the annular space between them can diminish gradually.Between described tache motorice and fixture, be provided with the resilience mechanism that spindle is resetted, like this, motor is quit work after, spindle can be returned to original position, prepares for send out to start next time.
A kind of general-purpose petrol engine Carburetor of the present utility model, adopt electricity to start the automatic enrichment valve structure, outside normal fuel feeding path, increase an enriching pipeline, and the size of regulating the enriching pipe passage automatically along with the variation of the rising of engine temperature and ambient temperature, that is: regulate fuel delivery automatically, thereby realized engine start and the needed desirable enriching effect of warming-up process.
Description of drawings
Fig. 1 represents the structural representation of prior art Carburetor;
Fig. 2 represents the structural representation of the utility model embodiment automatic enrichment valve;
Fig. 3 represents the structural representation of the utility model embodiment Carburetor.
11...... Air strangler spindle; 12...... chock plate; 2...... mixing chamber; 3...... main jet pipe; 4...... float chamber; 5...... startup jet pipe; 6...... upgrading valve; 61...... lead; 62...... electrode slices; 64......PTC thermal sensitive ceramics; 65...... temperature sensing part; 651...... tache motorice; 652...... temperature sensing part shell; 66...... push rod; 67...... rebound spring; 68...... top cover; 69...... spindle; 70...... plunger; 71...... spring; 72...... housing; 73...... swivel nut.
Embodiment
With reference to accompanying drawing 2 and Fig. 3, will be described in detail embodiment of the present utility model.
General-purpose petrol engine Carburetor of the present utility model, as shown in Figure 3, set up the enriching pipeline that is communicated with between float chamber 4 and the mixing chamber 2, in described enriching pipeline, automatic enrichment valve 6 is set, the structure of described upgrading valve 6 as shown in Figure 2, lead 61 is inserted in the housing 72 of upgrading valve 6, in described housing 72, two cube electrode sheets 62 are set, and described electrode slices 62 links to each other with described lead 61; Between two cube electrode sheets 62, accompany PTC thermal sensitive ceramics 64, two cube electrode sheets 62 form with the PTC thermal sensitive ceramics and electrically contact, PTC thermal sensitive ceramics 64 contacts with temperature sensing part 65, comprise in the described temperature sensing part 65 and meet the bigger dilatant of rates of thermal expansion, such as in temperature sensing part shell 652, paraffin being housed, one side of temperature sensing part shell 652 is tache motorices 651, paraffin expands and can outwards move by the described tache motorice 651 of promotion, described tache motorice 651 can form interlock with spindle 69, if described spindle 69 is taper spindles, when spindle links, begin to be inserted into coaxially in the cylindrical hole of the startup jet pipe 5 the enriching pipeline from the top of taper, the passage of enriching pipeline is diminished gradually.
The utility model embodiment's general-purpose petrol engine Carburetor, after engine ignition switch is opened, upgrading valve 6 energisings, PTC thermal sensitive ceramics 64 energisings between the electrode slices 62, because PTC thermal sensitive ceramics 64 is when energising, self can produce molecular oscillation, produce heat, heat conducts to temperature sensing part 65, dilatant expanded by heating in the temperature sensing part 65, promote tache motorice 651, insert in starting jet pipe 5 thereby promote spindle 69, along with the prolongation of current"on"time, spindle 69 and the annular space that starts between the jet pipe 5 diminish gradually, if the through hole internal diameter of described startup jet pipe 5 is less than or equal to the diameter of spindle 69 bottoms, last spindle 69 and the annular space that starts between the jet pipe 5 can be closed, thereby close described enriching pipeline.
When the through hole internal diameter of described startup jet pipe 5 during greater than the diameter of spindle 69 bottoms, spindle 69 and the meeting that starts between the jet pipe 5 remain certain annular space, and the enriching pipeline can not closed.
After motor is out of service, 62 outages of described electrode slices, the temperature of PTC thermal sensitive ceramics 64 and temperature sensing part 65 reduces, and during the volume shrinkage of dilatant, if dilatant and tache motorice 651 can link, spindle 69 is automatically reset.
The tache motorice 651 if dilatant cannot link, so, between described tache motorice 651 and fixture, to be provided with resilience mechanism, described resilience mechanism outwards is compressed during motion or stretches at tache motorice 651, when dilatant shrinks, resilience mechanism resets, and drives tache motorice 651 and spindle 69 and is returned to original position.
The structure of concrete resilience mechanism can be as shown in Figure 2, and at the outer end of described tache motorice 651 fixed mandril 66, described push rod 66 inserts in the groove of top cover 68, withstand the interior edge face of described top cover 68, between the outside of described top cover 68 and fixture rebound spring 67 is installed, when dilatant expanded, push rod 66 pushed and overlaps 68, compression rebound spring 67, when dilatant shrank, rebound spring 67 resiliences retracted spindle 69, make spindle 69 leave described startup jet pipe 5, set back.
At this moment, described fixture can be described enriching valve housing 72, also can be the swivel nut 73 that is connected on the described housing 72, and described rebound spring 67 1 ends withstand swivel nut 73, and opposite side is fixed on described top and overlaps on the radially ectotropic flanging in 68 outsides.The rear end of swivel nut 73 can form with described housing 72 and be threaded, and will push up cover 68, and push rod 66 wraps in its inside, and the front opening of swivel nut 73 can pass through top cover 68 from described opening.Described swivel nut 73 is screwed into described housing 72, can make electrode slices 62, PTC thermal sensitive ceramics 64, and temperature sensing part 65, push rod 66 keeps closely contact between the top cover 68.
For after preventing spindle 69 and startup jet pipe 5 contacting, continue to expand and damage spindle 69 and startup jet pipe 5, so between described spindle 69 and described tache motorice 651, elastic mechanism is installed, when described elastic mechanism advances at spindle 69, in the raw, can be compressed after jet pipe 5 contacts with starting at spindle 69, spindle 69 is advanced no longer forward.
The concrete structure of described elastic mechanism can be: plunger 70 is fixed on the front end of top cover 68, mounting spring 71 in described plunger, front end at described plunger 70 is opened plunger hole, and described spindle 69 can adopt Spielpassung to be inserted in the described plunger hole, contacts with spring 71.
Through hole on certain startup jet pipe 5 of the present utility model also can be tapered round taper hole, and so described spindle 69 can be isometrical cylindrical body.Described spindle 69 inserts in the described startup jet pipe 5 coaxially from the bigger end of the radius of round taper hole, and the annular space between them diminishes gradually during insertion, can realize same function.
In order to compress two cube electrode sheets 62 and PTC thermal sensitive ceramics 64, the turriform spring is installed between temperature sensing part 65 and electrode slices 62.
Claims (6)
1, a kind of general-purpose petrol engine Carburetor, comprise float chamber (4) and mixing chamber (2), it is characterized in that, increase the enriching pipeline that is communicated with between float chamber (4) and the mixing chamber (2), be provided with in the enriching pipeline and start jet pipe (5), upgrading valve (6) is provided with and can inserts the spindle (69) that starts in the jet pipe (5) coaxially, described spindle (69) is divided into two sections with startup jet pipe (5) with the enriching pipeline, the enriching pipeline of spindle (69) one sides is connected with another section enriching pipeline by starting jet pipe, the structure of described upgrading valve (6) is: two electrode slicess (62) of opening the automatic energising in back at engine ignition switch, and the PTC thermal sensitive ceramics (64) that accompanies between them forms and electrically contacts, PTC thermal sensitive ceramics (64) contacts with temperature sensing part (65), the outer surface of described temperature sensing part (65) is temperature sensing part shell (652), be surrounded by in the described temperature sensing part shell (652) and meet the bigger dilatant of rates of thermal expansion, one side of temperature sensing part shell (652) is tache motorice (651), described tache motorice (651) contacts with described dilatant, described tache motorice (651) is the motion annexation with described spindle (69), described spindle (69) is the less taper spindle of tip radius, starting jet pipe (5) is cylindrical hole, perhaps, through hole on the described startup jet pipe (5) is the bigger round taper hole of upper end radius, described spindle (69) is a cylindrical body, is provided with the resilience mechanism that spindle (69) is resetted between described tache motorice (651) and fixture.
2, general-purpose petrol engine Carburetor according to claim 1 is characterized in that, described dilatant is a paraffin.
3, general-purpose petrol engine Carburetor according to claim 2 is characterized in that, the internal diameter of described cylindrical startup jet pipe (5) is less than or equal to the diameter of spindle (69) bottom greater than the diameter of the tapered tip of taper spindle (69).
4, according to the arbitrary described general-purpose petrol engine Carburetor of claim 1 to 3, it is characterized in that, the structure of resilience mechanism is: at the outer end fixed mandril (66) of described tache motorice (651), described push rod (66) inserts in the groove of top cover (68), withstand the interior edge face of described top cover (68), between the outside of described top cover (68) and fixture rebound spring (67) is installed, described top cover (68) is the motion annexation with described spindle (69).
5, general-purpose petrol engine Carburetor according to claim 4, it is characterized in that, described fixture is the swivel nut (73) that is connected with upgrading valve housing (72), described rebound spring (67) one ends withstand swivel nut (73), opposite side is fixed on the radially ectotropic flanging in described top cover (68) outside, and the front end of swivel nut (73) is provided with the opening that top cover (68) is passed through.
6, according to claim described 5 described general-purpose petrol engine Carburetors, it is characterized in that, plunger (70) is fixed on the front end of top cover (68), mounting spring in described plunger (71), front end at described plunger (70) is opened plunger hole, described spindle (69) adopts Spielpassung to be inserted in the described plunger hole, and spindle (69) rear end contacts with spring (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420085136 CN2729343Y (en) | 2004-08-10 | 2004-08-10 | Universal carburetor for gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420085136 CN2729343Y (en) | 2004-08-10 | 2004-08-10 | Universal carburetor for gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2729343Y true CN2729343Y (en) | 2005-09-28 |
Family
ID=35048120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420085136 Expired - Fee Related CN2729343Y (en) | 2004-08-10 | 2004-08-10 | Universal carburetor for gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2729343Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798970A (en) * | 2010-04-21 | 2010-08-11 | 江门市大长江集团有限公司 | Starting device for enriching-valve type carburetor |
| CN104131916A (en) * | 2014-07-23 | 2014-11-05 | 苏州达思灵新能源科技有限公司 | Single-cylinder gasoline engine carburetor throttle valve adjusting mechanism and gasoline engine with mechanism |
-
2004
- 2004-08-10 CN CN 200420085136 patent/CN2729343Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798970A (en) * | 2010-04-21 | 2010-08-11 | 江门市大长江集团有限公司 | Starting device for enriching-valve type carburetor |
| WO2011131131A1 (en) * | 2010-04-21 | 2011-10-27 | 江门市大长江集团有限公司 | Starting device for enriching-valve type carburetor |
| CN104131916A (en) * | 2014-07-23 | 2014-11-05 | 苏州达思灵新能源科技有限公司 | Single-cylinder gasoline engine carburetor throttle valve adjusting mechanism and gasoline engine with mechanism |
| CN104131916B (en) * | 2014-07-23 | 2015-12-30 | 苏州达思灵新能源科技有限公司 | The motor of single cylinder petrol engine carburetor throttle adjustment mechanism and this mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |