CN108571398A - A kind of carburetor - Google Patents
A kind of carburetor Download PDFInfo
- Publication number
- CN108571398A CN108571398A CN201710132586.0A CN201710132586A CN108571398A CN 108571398 A CN108571398 A CN 108571398A CN 201710132586 A CN201710132586 A CN 201710132586A CN 108571398 A CN108571398 A CN 108571398A
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- enriching
- oil
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- manual
- oil transportation
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- 238000007789 sealing Methods 0.000 claims description 29
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 19
- 210000003934 vacuole Anatomy 0.000 claims description 19
- 230000033001 locomotion Effects 0.000 claims description 12
- 239000000446 fuel Substances 0.000 abstract description 33
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 126
- 230000008859 change Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004634 feeding behavior Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
- F02M1/16—Other means for enriching fuel-air mixture during starting; Priming cups; using different fuels for starting and normal operation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of carburetors, manual enriching system is independently of oil supply system in the carburetor --- and enriching oil transportation channel is bypassed in main oil transportation channel, by-pass structure is formd, this has significant substantive distinguishing features compared with the structure for sharing main oil transportation channel in the prior art.The carburetor has the manual enriching system of by-pass structure, fuel can be individually exported when use independently of original oil supply system, the oil condition of oil supply system can it is synchronous or asynchronous with the oil condition of rich operation and it is mutual do not generate interference, be finally reached the technique effect of enriching appropriateness；Meanwhile it is easy to operate.
Description
Technical field
The present invention relates to the enriching systems of a kind of carburetor more particularly to carburetor.
Background technology
With the trend of scientific and technological progress and rapid economic development, it is the hand-held of power to use put-put in the world
Formula garden instrument market is grown rapidly.Occupy importantly in handheld garden tools production by the winter product of representative of ice auger
Position, occupation rate of market are high, and petrol engine is used in special service condition in low temperature environment in winter, needs design special
Structure to deal with cryogenic conditions.Gasoline evaporation rate in low temperature is slack-off, is so as to cause put-put is used
The mixture strength from carburetor that engine sucks when the winters product generally existing cold-starting such as ice auger of power is partially dilute, therefore
Engine low-temperature starting-up performance is simultaneously bad, i.e., cold-starting is difficult.Currently on the market used in winter product and summer product
Carburetor its in structure there is no essential distinction, although some aim at the carburetion with enriching structure of winter product development
Device, but these enriching structures and the structure matching difficulty of original carburetor are big, complicated, the user's operation fiber crops of carburetor
It is tired, the problem of being also easy to cause gaseous mixture overrich.
Carburetor with enriching function common in the art is generally divided into automatically controlled enriching type and manual enriching
Type.Such as the Chinese patent of Publication No. CN105008703A disclosed in 28 days October in 2015, disclose a kind of electronics control
The fuel enrichment system of system.The setting one at balance breathing component has been recorded in the patent document is capable of providing aux. pressure
Fluid pump 2, fluid pump 2 has through the controlled function of electric power, and the work of fluid pump 2 can be controlled in the case where being passed through electric current
Make state.It, can be to the more combustions of injection at restriction portion 74 (i.e. trunnion position) in the case where fluid pump 2 proposes aux. pressure
Material plays the technique effect of enriching injection.The technical solution is to install electric-controlled parts additional on the basis of original fueling technology to flow
Body pump 2, which needs to overcome the problems, such as that 2 existing structure of fluid pump and carburetor original structure difficulty of matching are big, this
It is to need the underlying issue for considering space layout, installing connection when such a match occurs because most fluid pumps 2 are outsourcing part.
So the carburetor of existing automatically controlled enriching type is separate structure, i.e., two are between electric-controlled parts and carburetor body
Installation site.Further result in such carburetor structure complexity, use problem difficult to install；And the change of automatically controlled enriching type
The use scope of oily device is relatively simple, is not suitable for handheld device.
In another example the Chinese patent of Publication No. CN203189142U disclosed in September in 2013 11 days, discloses a kind of wind
Power spray carburetor.A kind of Manufacturing Technology for Carburetors scheme of manual enriching has been recorded in the patent document, has been taken logical in main oil transportation
One manual enriching structure is set on road, obtains additional oil storage space and the moment in fuel feeding in main oil transportation channel with this
Output.Specifically, it includes carburetter body, oil pumping system and balance system, it is provided with the enriching pump housing above oil pumping system, adds
Oil duct is set on the dense pump housing, and the lower end of oil duct is communicated with the oil duct of oil pumping system, and the upper end of oil duct is provided with oil suction packet；Balance system
Spring pressuring plate is provided with below system, one end of spring pressuring plate is fixed on carburetter body, and the other end is suspended from the flat of balance system
It weighs on compression bar, driving lever is provided with beside spring pressuring plate, driving lever is fixed on by screw on carburetter body.In oil transportation direction
On, the upstream that breathing component is balanced in balance system is arranged in oil storage space in the carburetor of this manual enriching structure so that
The working condition of rich operation and balance system becomes contradictory factor, because the premise of rich operation is in the technical scheme
Balance system is (opening degree is constant always) in the open state when balance system normal work being inhibited to require rich operation.Separately
Outside, the fuel requirement of the enriching in the manual enriching structure is exported by main oil transportation channel, causes enriching structure to occupy original
Main oil transportation channel, balance system are in normally open in rich operation, therefore change the trigger condition of original fuel feeding, make
Trigger condition reduces, and fuel delivery is higher if fuel feeding, the amount of fuel feeding when adding rich operation, finally so that rich operation carries
The fuel quantity of confession is excessive, the problem of easily causing gaseous mixture overrich.Just as previously mentioned, needing inhibiting balance system just before rich operation
Often work just will produce balance system when pressing oil suction packet into entering the GATT if balance system maintains normal operating conditions
Disconnected state, so that oil circuit is not connected to.That is, not pressing oil suction packet as requested only results in entire carburetor work
It is not normal, therefore press oil suction packet when not inhibiting balance system to work normally and only will produce harm, operate the carburetor flow compared with
For complexity.In the prior art, the carburetor for having manual enriching class function is suitble to matching on a handheld device.But suchization
The technical issues of complicated for operation and excessive enriching existing for oily device, is an impediment to use.
Invention content
The technical problem to be solved by the present invention is to how avoid excessive enriching, thus obtain it is a kind of it is easy to operate, enriching is suitable
The carburetor of degree.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：The ontology of the carburetor is equipped with trunnion portion
Position and oil supply system, the oil supply system include main oil transportation channel, check valve I, oil transportation power component, check valve II, balance and exhale
Component is inhaled, the check valve I, oil transportation power component, check valve II, balance breathing component are sequentially distributed on main oil transportation channel,
Described main oil transportation channel one end is equipped with oil inlet, the other end is equipped with oil-feed port, and the oil inlet is connected to body exterior space, institute
It states oil-feed port to be connected to trunnion position, the balance breathing component is equipped with pressure balance storehouse, and the pressure balance storehouse and master are defeated
Oily channel is connected to, and the manual enriching system of by-pass structure, the manual enriching system packet are additionally provided on the ontology of the carburetor
Enriching oil transportation channel, check valve III, manual pump oil vacuole, check valve IV are included, the manual pump oil vacuole is sealedly connected on body exterior,
The enriching oil transportation channel includes first passage part and second channel part, and one end of the first passage part and second are led to
One end of road part is all connected to by pump oil bubble is internal, and the check valve III is mounted in first passage part, described unidirectional
Valve IV is installed in second channel part, and the other end of the first passage part is connected to pressure balance storehouse, the second channel
The partial other end is connected to trunnion position.
Manual enriching system is independently of oil supply system in the technical scheme --- and enriching oil transportation channel is bypassed in main oil transportation
Channel forms by-pass structure, this has significant substantive special compared with the structure for sharing main oil transportation channel in the prior art
Point.One end of enriching oil transportation channel is communicated in the pressure balance storehouse of balance breathing component, and the other end of enriching oil transportation channel connects
Logical trunnion position.What such bypass design biggest advantage was to generate in pressure balance storehouse when the work of manual enriching system
The negative pressure that negative pressure is generated by main oil transportation channel in pressure balance storehouse independently of trunnion position, manual enriching system work is base
In the operation for pressing manual pump oil vacuole, that is to say, that when pressing manual pump oil vacuole, not only is produced from pressure balance storehouse at trunnion position
Raw negative pressure can also be realized and generate negative pressure to pressure balance storehouse by manual pump oil vacuole, and the two superposition can further promote balance
The opening degree of breathing group.Breathing group is balanced once opening, so that it may fuel to be input in pressure balance storehouse, finally be inhaled into
In enriching oil transportation channel.If the drop of pressure at trunnion position at this time can be further driven to the drop of pressure in pressure balance storehouse,
The opening degree bigger of breathing component is then balanced, fuel input increases, and increased ration can carry out conventional fuel feeding behaviour
Make.Rich operation and the operation of normal fuel feeding would not interfere with each other at this time, and the two can be carried out independently completely.Above-mentioned two
The negative pressure that kind form generates can be superimposed in pressure balance storehouse, and balance breathing component is promoted to form corresponding opening degree；
Moreover, it is to open the principal element of balance breathing component that trunnion position generates negative pressure to pressure balance storehouse, on this basis by hand
Dynamic pump oil bubble generates negative pressure to pressure balance storehouse could further open balance breathing component, in brief, against by manual pump
Oil vacuole generates negative pressure to pressure balance storehouse cannot open balance breathing component, thoroughly avoid the opening of balance breathing component in this way
State only copes with rich operation.Thus, the technique effect of enriching appropriateness may be implemented in the manual enriching system of by-pass structure.
Even if the case where pressing manual pump oil vacuole at any time in the technical scheme, all will not causing to turn off main oil transportation channel,
Just as previously mentioned, enriching oil transportation channel bypass is in main oil transportation channel, the fuel output that rich operation generates will not pass through main oil transportation
Channel carries out.Therefore, rich operation is very easy.
For the thorough separate manual enriching system from connected relation, especially under the nominal situation for not needing rich operation
Ensure that oil supply system is stable, independently work, the manual enriching system further includes manual enriching switch, and the manual enriching is opened
Off-position is in second channel part.The manual enriching switch can be butterfly valve structure, diaphragm valve structure, stop valve structure；Its mesh
Only realize enriching oil transportation channel second channel part on off operating mode change, play on-off action.Once adding manually
Dense switch partition second channel part avoids fuel in enriching oil transportation then enriching oil transportation channel cannot implement rich operation
It is flowed in channel.
Include handle, plunger, spring, sealing block, the hand in the technical program structure that preferably manual enriching switchs
Dynamic enriching switch is stop valve structure.The handle is movably arranged in a manner of being rotatablely connected on ontology, the plunger activity peace
Straight reciprocating motion can be done in ontology and in ontology, the plunger at one end is connect with handle, and the spring is located at this
In vivo and outside plunger, the other end of the plunger and one end of spring connect, the other end and ontology of the spring
Connection, the plunger are equipped with sealing plane, and the sealing block is tightly connected with ontology, and it is past that the sealing block is located at plunger straight line
On the direction moved again, the sealing block is equipped with switching channels, and the switching channels are located on second channel, the sealing block
Both sides by switching channels be connected to and pass through plunger sealing plane and sealing block between be tightly connected to completely cut off second channel portion
Point.Plunger pushes sealing block position to by spring under natural conditions, and then entire manual enriching switch is closed.Hand
Handle swings the movement for driving plunger to do far from sealing block, once plunger is detached from sealing block, manual enriching switch, which is at, to be beaten
Open state.
The manual enriching system further includes drainback passage and oil return hand-operated valve, one end of the drainback passage and second channel
Part is connected to, and the other end of the drainback passage is connected to body exterior, conveying of the drainback passage in enriching oil transportation channel
It is located at the rear of switching channels on direction, the oil return hand-operated valve is connected to drainback passage, and the drainback passage passes through oil return hand
Dynamic valve realizes break-make.The break-make of drainback passage may be implemented by rotating oil return hand-operated valve, such structure is to realize
The air of rich operation passing away early period can fully implement rich operation when being full of fuel in enriching oil transportation channel.And
Fuel is full of inside enriching oil transportation channel as possible in order to allow, drainback passage relative to switching channels enriching oil transportation channel conveying
Position on direction have to it is close to each other, be located behind again, perfect condition is second channel part in the side of sealing block
All should be fuel.
The present invention uses above-mentioned technical proposal：The carburetor has the manual enriching system of by-pass structure, can be with when use
Fuel is individually exported independently of original oil supply system, the oil condition of oil supply system can be same with the oil condition of rich operation
Step or it is asynchronous and it is mutual do not generate interference, be finally reached the technique effect of enriching appropriateness；Meanwhile it is easy to operate.
Description of the drawings
The present invention is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of structural schematic diagram of carburetor of the present invention.
Specific implementation mode
As shown in Figure 1, the body interior of carburetor is equipped with for the trunnion position of mixing air and fuel, provides fuel
Oil supply system, in cold-starting condition provide extra dose fuel manual enriching system.
The oil supply system includes main oil transportation channel 1, check valve I 3, oil transportation power component 2, check valve II4, balance breathing group
Part 5.Main oil transportation channel 1 is the long and narrow hollow region formed in body interior, and one end of main oil transportation channel 1 is in ontology on the whole
It is external form oil inlet, its other end is located within the body portion as output end and is connected to trunnion position, main oil transportation channel 1
Operating direction, that is, fuel conveying direction always from oil inlet to the direction at trunnion position on.Check valve I 3 and check valve II4 are
Diaphragm check valve, it is formed by fixing diaphragm on the body and ontology, and main oil transportation channel 1 forms smooth plane in ontology
Structure, diaphragm is fitted closely with the plane under original state, diaphragm in a swing fashion in ontology movement and when diaphragm is swung only
It is moved in the side of this plane, and then diaphragm generates the effect of channel opening in side stress and produced in other side stress
The effect that raw channel is closed.Check valve I 3, check valve II4 irreversibly deliver that direction is identical, and main oil transportation channel 1 passes through check valve I
3, check valve II4 realizes on-off line operation.Oil transportation power component 2 includes diaphragm and negative pressure Acquisition channel, and diaphragm seal is mounted on this
In vivo, negative pressure Acquisition channel is arranged in ontology and is connected to when in use with the crankcase of engine, main oil transportation channel 1 and negative pressure
Acquisition channel is separated by diaphragm.Since air pressure can be during crank rotation and piston up-down in engine crankcase
Generate circulation change, i.e., the circulation change that air pressure can reduce and then increase and reduce.The diaphragm of oil transportation power component 2 is by negative pressure
Pressure change in Acquisition channel and do the movement that stretching, extension is shunk, the space of the main oil transportation channel 1 of diaphragm side will become larger or
Person becomes smaller.In the conveying direction, check valve I 3, oil transportation power component 2, check valve II4 are sequentially distributed, 2 work of oil transportation power component
Fuel can only enter from check valve I 3 from oil transportation power component 2 when making, then be exported from check valve II4.
Balance breathing component 5 includes diaphragm, jacking block, drive link 6, resetting spring, needle-valve 7.Diaphragm fix on the body, every
Film is tightly connected with ontology, and the side of diaphragm is connected to ambient atmosphere, the other side of diaphragm and ontology form pressure balance storehouse, should
Pressure balance storehouse belongs to a part for main oil transportation channel 1.Jacking block, drive link 6, resetting spring, needle-valve 7 are all located at pressure balance storehouse
It is interior.Jacking block is fixedly connected with diaphragm, and drive link 6 is movably arranged on rotating manner on ontology and is formed lever construction, resets bullet
Spring one end is fixedly connected with ontology, and the other end is connect with one end of drive link 6, and jacking block is also connect with one end of drive link 6.Needle-valve
7 one end is flexibly connected with the other end of drive link 6, and the other end of needle-valve 7 is flexibly connected with valve body.There are pressure differences for diaphragm both sides
When, diaphragm is stretched or is shunk, and then jacking block is promoted to move.Latter end and trunnion portion of the pressure balance storehouse by main oil transportation channel 1
Position connection, when pressure is less than outside atmosphere pressure in pressure balance storehouse, jacking block can push drive link 6 to transport in the case of moving
Dynamic, one end of drive link 6 compresses resetting spring, the other end drives needle-valve 7 to do the movement for being detached from ontology, the component of balance breathing at this time
5 is in the open state on main oil transportation channel 1, and fuel enters in pressure balance storehouse, is finally output at trunnion position.Work as pressure
Dynamic balance storehouse internal pressure is powerful in outside atmosphere pressure, jacking block no longer push drive link 6 movement, jacking block to be detached from drive link 6 side
To movement, one end of drive link 6 obtains power by resetting spring and moves, the other end drives needle-valve 7 to fit closely ontology
Movement balance breathe component 5 in main oil transportation channel 1 at this time until needle-valve 7 closely connect to form sealed connection relationship with ontology
On be closed, fuel cannot be exported.The air pressure change in pressure balance storehouse is directly by the air pressure at trunnion position
It influences, the combustion chamber at trunnion position and engine, once the air pressure in the air pressure reduction of trunnion position, pressure balance storehouse is immediately
It reduces；The oil supply system of carburetor enters the state for providing fuel.
Manual enriching system includes enriching oil transportation channel, check valve III 8, manual pump oil vacuole 9, check valve IV 10, adds manually
Dense switch 11, drainback passage 12 and oil return hand-operated valve.
Enriching oil transportation channel is also the long and narrow hollow region formed in body interior, on the whole, enriching oil transportation channel
One end is connected to pressure balance storehouse, the other end of enriching oil transportation channel is connected to trunnion position.Enriching oil transportation channel is divided into two sections,
It is first passage part 13 and second channel part 14 respectively.One end of first passage part 13 is connected to pressure balance storehouse,
The other end of one channel part 13 is located at the surface of ontology；One end of second channel part 14 is located at the surface of ontology, second logical
The other end of road part 14 is connected to trunnion position.Check valve III 8 is located at the surface at first passage part 13 and close to ontology,
Check valve IV 10 is located at the surface at second channel part 14 and close to ontology.Manual pump oil vacuole 9 is rubber material, is had flexible
Property, it can squeeze.Manual pump oil vacuole 9 is fixed on body surface, is tightly connected between manual pump oil vacuole 9 and ontology.Manual pump oil
The inner space of bubble 9 belongs to a part for enriching oil transportation channel.Manual pump oil vacuole 9 is just covered in first passage part after installing
13 and second channel part 14 body surface opening.Check valve III 8 so that fuel can only from first passage part 13 to
Conveying in manual pump oil vacuole 9, check valve IV 10 is so that fuel can only be conveyed from manual pump oil vacuole 9 into second channel part 14.
The driver under stress structure of manual enriching switch 11 is located at body surface, executes switching manipulation to enriching oil transportation channel
Structure is located at body interior and at the second channel part 14 of enriching oil transportation channel.Manual enriching switch 11 include handle,
Plunger, spring, sealing block.Handle is movably arranged on the surface of ontology in a manner of being rotatablely connected.Plunger is movably arranged in ontology
And straight reciprocating motion can be done in ontology, the relationship being tightly connected can be kept between plunger and ontology.One end of plunger is logical
It crosses tension spring to connect with handle, spring is cased with outside plunger, one end of spring top connect with ontology on the body, spring
The other end withstands on the other end of plunger and is connect with plunger.Due to the impetus of spring, plunger always transport by oriented body interior
Dynamic trend.Plunger is equipped with sealing plane, and the sealing plane is corresponding with sealing block.Sealing block is located at second channel part 14
Place, sealing block are tightly connected with ontology.Switching channels 15 are equipped on sealing block, which belongs to second channel part
One section of 14.Under original state, the sealing plane position on plunger is pressed on sealing block and forms sealed connection relationship, opens at this time
It closes channel 15 to be blocked by plunger and second channel part 14 is made to separate, manual enriching switch 11 is closed.Drive plunger
The power of movement comes from the power transmitted by handle when pulling handle, and passing power is additionally provided between plunger and handle
Tension spring, such design can utmostly ensure that power is transmitted in a manner of more soft, ensure between plunger and ontology
Contact excessively not fierce avoid impacting when both being contact；And the ductility of tension spring also helps between plunger and handle
Space transition has the function that simplified power transmission structure.In the present embodiment, in order to which configure can be to handle on the body
The structure of relative position, in the exterior design damping block of wedge structure of ontology, when handle is moved towards damping block handle
Frictional force between damping block can increasing otherwise frictional force can be gradually reduced.The limit of limitation handle position is consequently formed
Bit architecture.
Drainback passage 12 is also the long and narrow hollow region formed in body interior, on the whole, one end of drainback passage 12
It is connected to second channel part 14, the other end of drainback passage 12 is connected to body exterior space.Drainback passage 12 is in ontology
Surface forms tubular structure, and oil return hand-operated valve may be used ball-valve structure and mounted on the tubular structure for including drainback passage 12
On.When oil return hand-operated valve, which is in, closes, the intermediate region of enriching oil transportation channel is not connected to body exterior, that is, enriching is defeated
Oily channel interior space can only be connected to pressure balance storehouse and trunnion position；And when enriching is defeated in the open state for oil return hand-operated valve
The intermediate region in oily channel can be connected to body exterior, i.e., enriching oil transportation channel inner space can not only be connected to pressure balance storehouse and
Trunnion position, moreover it is possible to be connected to body exterior space.
There are specific position relationships on the conveying direction of enriching oil transportation channel with switching channels 15 for drainback passage 12, i.e.,
The mutual distance of the two is close proximity to but to be located at switch on the conveying direction of enriching oil transportation channel logical for drainback passage 12
The rear in road 15.Such design can meet the requirement for being full of fuel before rich operation in enriching oil transportation channel as far as possible.
Under the carburetor original state, manual enriching switch 11 is closed, oil return hand-operated valve is closed.
When the carburetor needs to carry out rich operation, handle is pulled first, so that manual enriching switch 11 is entered opening state, then not
It is disconnected to squeeze manual pump oil vacuole 9, fuel is twitched with this and is entered in enriching oil transportation channel, final fuel is entered by enriching oil transportation channel
Trunnion position.While manual enriching system work, oil supply system is in running order always.Containing free in enriching oil transportation is logical
Gas, then oil return hand-operated valve is opened when manual enriching switch 11 is closed, and is then squeezed manual pump oil vacuole 9, will be fired
Air is squeezed out by fuel propulsion while material introduces enriching oil transportation channel, air is discharged from drainback passage 12；When oil return is logical
Oil return hand-operated valve is closed when discharge fuel in road 12, then opens manual enriching switch 11, continues to squeeze manual pump oil vacuole 9, hold
Row rich operation.
Claims (4)
1. the ontology of a kind of carburetor, the carburetor is equipped with trunnion position and oil supply system, the oil supply system includes master
Oil transportation channel (1), check valve I (3), oil transportation power component (2), check valve II (4), balance breathing component (5), the check valve
I (3), oil transportation power component (2), check valve II (4), balance breathing component (5) are sequentially distributed on main oil transportation channel (1), institute
It states main oil transportation channel (1) one end and is equipped with oil-feed port equipped with oil inlet, the other end, the oil inlet is connected to body exterior space,
The oil-feed port is connected to trunnion position, and balance breathing component (5) is equipped with pressure balance storehouse, the pressure balance storehouse with
Main oil transportation channel (1) connection, it is characterised in that：The manual enriching system of by-pass structure is additionally provided on the ontology of the carburetor,
The manual enriching system includes enriching oil transportation channel, check valve III (8), manual pump oil vacuole (9), check valve IV (10), described
Manual pump oil vacuole (9) is sealedly connected on body exterior, and the enriching oil transportation channel includes that first passage part (13) and second are logical
Road part (14), one end of the first passage part (13) and the one end of second channel part (14) all with steeped by pump oil in
Portion is connected to, and the check valve III (8) is mounted in first passage part (13), and the check valve IV (10) installs second channel portion
Divide in (14), the other end of the first passage part (13) is connected to pressure balance storehouse, the second channel part (14)
The other end is connected to trunnion position.
2. carburetor according to claim 1, it is characterised in that：The manual enriching system further includes manual enriching switch
(11), the manual enriching switch (11) is located in second channel part (14).
3. carburetor according to claim 2, it is characterised in that：The manual enriching switch (11) includes handle, plunger, bullet
Spring, sealing block, the handle are movably arranged in a manner of being rotatablely connected on ontology, and the plunger is movably arranged in ontology and can
To do straight reciprocating motion in ontology, the plunger at one end is connect with handle, and the spring is located within the body and is mounted on column
Portion beyond the Great Wall, the other end of the plunger and one end of spring connect, and the other end of the spring is connect with ontology, on the plunger
Equipped with sealing plane, the sealing block is tightly connected with ontology, and the sealing block is located on the direction of plunger straight reciprocating motion,
The sealing block is equipped with switching channels (15), and the switching channels (15) are located on second channel, and the sealing block both sides are logical
Cross switching channels (15) connection and pass through plunger sealing plane and sealing block between be tightly connected to completely cut off second channel.
4. carburetor according to claim 3, it is characterised in that：The manual enriching system further include drainback passage (12) and
One end of oil return hand-operated valve, the drainback passage (12) is connected to second channel part (14), the drainback passage (12) it is another
One end is connected to body exterior, and the drainback passage (12) is located at switching channels (15) on the conveying direction of enriching oil transportation channel
Rear, the oil return hand-operated valve is connected to drainback passage (12), and the drainback passage (12) is realized logical by oil return hand-operated valve
It is disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132586.0A CN108571398A (en) | 2017-03-07 | 2017-03-07 | A kind of carburetor |
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| CN201710132586.0A CN108571398A (en) | 2017-03-07 | 2017-03-07 | A kind of carburetor |
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| CN108571398A true CN108571398A (en) | 2018-09-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761840A (en) * | 2021-01-29 | 2021-05-07 | 福建省大立通用机电制造有限公司 | Easy starting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4052490A (en) * | 1976-05-10 | 1977-10-04 | Ford Motor Company | Carburetor with manually adjustable fuel supply |
| CN1479007A (en) * | 2002-07-23 | 2004-03-03 | 安德烈亚斯・斯蒂尔两合公司 | Carburetor device |
| CN101255828A (en) * | 2007-03-02 | 2008-09-03 | 沃尔布罗发动机使用有限责任公司 | Accelerator device for a carburetor |
| CN102352801A (en) * | 2011-10-07 | 2012-02-15 | 许岩 | Carburetor enrichment-system for two-stroke universal engine on ice drill |
| CN203189142U (en) * | 2013-04-12 | 2013-09-11 | 陕西森龙森林防火装备有限公司 | Carburetor of wind-driven fire extinguisher |
| CN104033297A (en) * | 2014-05-30 | 2014-09-10 | 杨锋 | Chain saw engine fuel oil thickening system |
| CN206655749U (en) * | 2017-03-07 | 2017-11-21 | 浙江星月实业有限公司 | A kind of carburetor |
-
2017
- 2017-03-07 CN CN201710132586.0A patent/CN108571398A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4052490A (en) * | 1976-05-10 | 1977-10-04 | Ford Motor Company | Carburetor with manually adjustable fuel supply |
| CN1479007A (en) * | 2002-07-23 | 2004-03-03 | 安德烈亚斯・斯蒂尔两合公司 | Carburetor device |
| CN101255828A (en) * | 2007-03-02 | 2008-09-03 | 沃尔布罗发动机使用有限责任公司 | Accelerator device for a carburetor |
| CN102352801A (en) * | 2011-10-07 | 2012-02-15 | 许岩 | Carburetor enrichment-system for two-stroke universal engine on ice drill |
| CN203189142U (en) * | 2013-04-12 | 2013-09-11 | 陕西森龙森林防火装备有限公司 | Carburetor of wind-driven fire extinguisher |
| CN104033297A (en) * | 2014-05-30 | 2014-09-10 | 杨锋 | Chain saw engine fuel oil thickening system |
| CN206655749U (en) * | 2017-03-07 | 2017-11-21 | 浙江星月实业有限公司 | A kind of carburetor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761840A (en) * | 2021-01-29 | 2021-05-07 | 福建省大立通用机电制造有限公司 | Easy starting device |
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