CN102828853B - Linkage mechanism of carburetor - Google Patents
Linkage mechanism of carburetor Download PDFInfo
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- CN102828853B CN102828853B CN201210360321.3A CN201210360321A CN102828853B CN 102828853 B CN102828853 B CN 102828853B CN 201210360321 A CN201210360321 A CN 201210360321A CN 102828853 B CN102828853 B CN 102828853B
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- air
- strangler spindle
- air strangler
- pump oil
- carburetor
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- 230000007246 mechanism Effects 0.000 title claims abstract description 46
- 210000005056 cell body Anatomy 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000003801 milling Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 9
- 230000003872 anastomosis Effects 0.000 claims description 8
- 238000005304 joining Methods 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 54
- 239000000295 fuel oil Substances 0.000 description 27
- 239000012188 paraffin wax Substances 0.000 description 19
- 239000007788 liquid Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a carburetor, and in particular relates to a linkage mechanism of the carburetor. The linkage mechanism comprises an oil pumping ball, a spiral groove body, a choke valve shaft, a throttle valve linkage arm, a choke valve linkage arm and a throttle valve shaft, wherein a spiral groove is arranged on the spiral groove body; a spiral groove bayonet lock is arranged on the choke valve shaft; the spiral groove bayonet lock extends through the spiral groove to position the spiral groove body on the choke valve shaft; and when the oil pumping ball is extruded, the throttle valve linkage arm on the choke valve shaft is linked with the choke valve linkage arm so as to drive the rotation of the throttle valve shaft.
Description
Technical field
The present invention relates to a kind of Carburetor, more specifically, relate to a kind of linking mechanism of Carburetor.
Background technique
Carburetor is exactly that the fuel oil of some is mixed with air, so that the main device of normal working of engine.In engine start process, by closing gas-entered passageway, reduce air quantity, the concentration that increases the mixed gas that enters motor makes engine start.But Carburetor on the market but ubiquity is not enough.Existing Carburetor is the basis state of the art good with Engine Matching before dispatching from the factory, to controlling the adjusting spindle of the fuel delivery of main oil supplying device and idling oil supplying device, regulate, while making Carburetor to engine oil, the ratio of fuel oil and air reaches optimum mixture ratio with the performance of performance motor the best, thereby reaches energy-conservation object.But, in order to improve probability that motor successfully starts to reduce engine start number of times, correspondingly need Carburetor to work under the ratio state of high fuel oil and air.And after starting completes, when Carburetor is worked under normal state, correspondingly require Carburetor in best admixture work the optimum performance with performance motor, increasing service life of engine, reduces exhaust pollution.But existing Carburetor but can not meet above-mentioned requirement.
Application number is the engine starting gear that China's application of 200610008981.X discloses a kind of rotary valve carburetor, this starting arrangement relies on the releasable cam interface connector of rotary actuation of starting lever, thereby throttling rod is rotated around spin axis, and with the angle of regulation and axial distance axially part raise and to leave Carburetor, and then provide fuel air mixture controlled, enriching during for engine start.Unfortunately, the starting arrangement of this Carburetor need to use the required cam Interface Moving device of throttling rod axial motion, and therefore the structural design of this Carburetor is comparatively complicated, and has increased the axial dimension of Carburetor, has hindered the application of this Carburetor.
Application number is that the application of China of 200520095240.0 discloses a kind of low oil consumption low temperature easy-start carburetor for motorcycle, this Carburetor is on the basis of existing motorcycle carburetor, on the passage of idling air jet, parallel connection adds idling air compensating jet, on the passage of primary air metering-orifice, parallel connection adds primary air compensating jet, and on the cylinder of motorcycle, thermostat valve assembly is installed.This Carburetor can improve the low-temperature startup performance of motor to a certain extent, but because parallel connection on the basis of existing Carburetor has been installed idling air compensating jet and primary air compensating jet additional and increased thermostat valve assembly on cylinder, make internal structure and the external structure of this Carburetor all complicated many, this has just increased design, manufacture and the maintenance cost of this Carburetor, thereby has limited the use of this Carburetor.
All there are various deficiencies in the Carburetor that motor of the prior art is used, therefore, the probability that ratio that be badly in need of to want a kind of motor can promote fuel oil and air when cold-starting is successfully started with raising motor, and the Carburetor that can pilot engine with less fuel oil equally when high-temperature start-up and for the device of this Carburetor.
Summary of the invention
The present invention aims to provide a kind of linking mechanism of Carburetor, the Carburetor with this linking mechanism can promote the probability that the ratio of fuel oil and air is successfully started to improve motor when engine low-temperature starting-up, and can pilot engine with less fuel oil equally when high-temperature start-up.
For achieving the above object, technological scheme provided by the invention is:
A linking mechanism for Carburetor, it comprises: pump oil ball, spiral cell body, Air strangler spindle, air throttle linkage arm, chock plate transmission arm and throttle plate pin.On described spiral cell body, be provided with spiral chute, be provided with spiral chute bayonet lock on described Air strangler spindle, described spiral chute bayonet lock extends through spiral chute, so that spiral cell body is positioned on Air strangler spindle; When the extruding of pump oil ball, the air throttle linkage arm on Air strangler spindle and the interlock of chock plate transmission arm, thus drive throttle plate pin to rotate.
Preferably, between described air throttle linkage arm and main body, on described Air strangler spindle, be also connected with Air strangler spindle returning spring.
Preferably, pump oil ball return spring is installed between described spiral cell body and described main body, it is balance Air strangler spindle equilibrium of forces in the axial direction together with Air strangler spindle returning spring.
Preferably, on described Air strangler spindle, be provided with draw-in groove.
Preferably, in described draw-in groove, back-up ring is installed, with the Air strangler spindle Air strangler spindle when pressing pump oil ball that guarantees to be arranged in main body, can move along shaft axis.
Preferably, in described back-up ring outside, packing ring is installed, so that pump oil ball return spring is connected between packing ring and spiral cell body movably.
Preferably, described spiral cell body has integrated projection.
Preferably, between described projection and described main body, locating stud is installed, with the rotation of restrictive pump oil ball.
Preferably, described locating stud only allows pump oil ball to move along axial direction; When the extruding of pump oil ball, spiral cell body drives Air strangler spindle to rotate predetermined angular, and Air strangler spindle drives air throttle linkage arm counterclockwise to rotate, and air throttle linkage arm promotes chock plate transmission arm clockwise direction and rotates.
Preferably, described predetermined angular is 75 °.
Preferably, described linking mechanism also comprises return spring of throttle and throttle line support.
Preferably, described return spring of throttle is arranged between main body and throttle line support, and described throttle line support is fixedly connected on throttle plate pin.
Preferably, described air throttle linkage arm has circular portion and anastomosis part.
Preferably, described circular portion has hole, air throttle linkage arm is riveted on Air strangler spindle by riveted joint form.
Preferably, described anastomosis part also has circular groove and bump bonding.
Preferably, described circular groove camber, accommodates the joining pin being fixedly mounted in main body in it, and with when pump oil ball is pressed, the rotation of Air strangler spindle drives circular groove to slide along joining pin, thereby the top of bump bonding is contacted with chock plate transmission arm.
Preferably, described chock plate transmission arm is rotatably connected in main body by fastening piece.
Preferably, described fastening piece is screw, bolt, rivet or pin.
Preferably, described Air strangler spindle further comprises: the flat place of Air strangler spindle milling, and it communicates with the hole that leads to atmosphere; Air strangler spindle cylndrical surface, it blocks the aperture communicating with engine impulse aperture.
Preferably, when pump oil ball is pressed, the measuring room that is positioned at the lower body part of Carburetor communicates with atmosphere by the flat place of described Air strangler spindle milling, and does not communicate with the impulse chamber on Carburetor.
Preferably, between described impulse chamber and pulse aperture, one-way valve is installed, pulse metering-orifice is also housed on described one-way valve.
Preferably, described Carburetor comprises main body, has needle-valve system in described main body.
Preferably, described needle-valve system comprises pintle valve seat, needle-valve, needle-valve rocking arm, metering spring, metering diaphragm, sealing paper washer.
Compared with prior art, because Carburetor of the present invention has adopted linking mechanism, during linking mechanism interlock, the flat place of milling on Air strangler spindle and the impulse chamber on Carburetor are connected, impulsive force is introduced in measuring room, by impulsive force, the fuel oil in measuring room is clamp-oned to the trunnion place of Carburetor, thereby made motor when cold-starting, there is the probability that high fuel oil and AIR Proportional successfully start to improve motor.And when high-temperature start-up, even if linking mechanism is in linkage status, impulsive force is incorporated into measuring room, because the vent of paraffin temp controller communicates with atmosphere, so impulsive force can only be extruded less fuel oil from main nozzle, thereby a small amount of fuel oil is used for to high-temperature start-up, so the start request while just in time having met engine high-temperature starting.Thus, Carburetor of the present invention can reduce the fuel consume of motor the working life of further improving motor on the basis of improving motor starting characteristic.
Accompanying drawing explanation
To describe now according to preferred but nonrestrictive embodiment of the present invention, these and other features of the present invention, aspect and advantage will become apparent when reading as follows detailed description with reference to accompanying drawing, wherein:
Fig. 1 is the three-dimensional axonometric drawing according to Carburetor of the present invention;
Fig. 2 is another the three-dimensional axonometric drawing according to Carburetor of the present invention;
Fig. 3 is the plan view according to Carburetor of the present invention, the state that it shows pump oil ball while not pressing;
Fig. 4 is when in Fig. 3, pump oil ball is not pressed, the side view of Carburetor when linking mechanism does not connect;
Fig. 5 is the plan view according to Carburetor of the present invention, the state that it shows pump oil ball while pressing;
Fig. 6 is when in Fig. 5, pump oil ball is pressed, the side view of linking mechanism Carburetor when linkage status;
Fig. 7 is the viewgraph of cross-section for the linking mechanism of the Carburetor of Fig. 1;
Fig. 8 is the sectional view of analysing and observe along the C-C line in Fig. 3, the situation that its flat place of milling that shows Air strangler spindle communicates with atmosphere;
Fig. 9 is the sectional view of analysing and observe along the C-C line in Fig. 5, the situation that its flat place of milling that shows Air strangler spindle communicates with measuring room;
Figure 10 is the rear view according to Carburetor of the present invention;
Figure 11 is the sectional view of analysing and observe along the B-B line in Fig. 5;
Figure 12 is the sectional view of analysing and observe along the A-A line in Figure 10, and it shows the situation of paraffin temp controller in closed condition;
Figure 13 is the sectional view of analysing and observe along the A-A line in Figure 10, and it shows the situation of paraffin temp controller in open mode;
Figure 14 is the oil circuit figure of the needle-valve system in the main body in Fig. 1.
Embodiment
The following description is only exemplary and be not in order to limit the disclosure, application or purposes in essence.Should be understood that, in whole accompanying drawings, corresponding reference character represents identical or corresponding parts and feature.
With reference now to accompanying drawing,, Fig. 1 has described according to the preferred embodiment of the general structure of the Carburetor 100 with esay starter of the present invention.As shown in Figure 1, Carburetor 100 has main body 1, upper cover 14, lower cover 19 and extends through fuel-air hybrid channel 2 of main body 1.Little cylindrical in large centre, two, 2 one-tenth of hybrid channels of fuel-air, is furnished with closure 11 in it, and comprises that aditus laryngis 104 and mixing chamber 101(are in conjunction with reference to Figure 11).Main body 1 has columniform horizontal expansion substantially by the chamber (unmarked) of hybrid channel 2, thereby throttle plate pin 12 is rotatably installed conventionally, closure 11 can be changed between the state of opening completely or closing completely, thereby control connection degree or the size of fuel-air hybrid channel 2.In the lower end surface of lower cover 19, by being for example that the link of screw 17 is installed with temp controller pressing plate 16, paraffin temp controller 200 is fixed on Carburetor lower cover 19 by temp controller pressing plate 16, then by screw 170, is fixed in the main body 1 of Carburetor.A side at carburetor main body 1 is provided with oil inlet pipe 18, to obtain fuel in the fuel tank from motor.
With further reference to Fig. 1, Fig. 2 and Fig. 7, pump oil ball 7 is for having the hemisphere elastic article of cavity, and it is fixedly connected on spiral cell body 6.Spiral cell body 6 is hollow fitting structure, has the spiral chute 8 arranging along spiral cell body spiral in one side.Spiral cell body 6 is socketed on Air strangler spindle 3 rotationally, with when pump oil ball 7 is pressed, along moving axially of Air strangler spindle 3.On Air strangler spindle 3, be fixedly installed spiral chute bayonet lock 81, this bayonet lock 81 extends upward by spiral chute 8, so that spiral cell body 6 is positioned on Air strangler spindle 3 rightly.Air strangler spindle 3 extends through the main body 1 of Carburetor, its outside in main body 1 by be for example riveted joint mode be fixedly connected with air throttle linkage arm 60, between this air throttle linkage arm 60 and main body 1, on Air strangler spindle 3, be also connected with Air strangler spindle returning spring 4, this returning spring 4 can be torsion spring, also can be common Compress Spring, it be used for balance Air strangler spindle 3 equilibrium of forces in the axial direction together with pump oil ball return spring 5.Position in about centre of Air strangler spindle 3 is provided with draw-in groove 82, and back-up ring 31 is arranged in this draw-in groove 82, and to guarantee to be arranged on Air strangler spindle in main body 1 when pressing pump oil ball 7, Air strangler spindle 3 can not move along shaft axis 330.In back-up ring 31 outsides, packing ring 32 is installed, so that pump oil ball return spring 5 is connected between packing ring 32 and spiral cell body 6 movably.Spiral cell body has integrated protruding 83, and locating stud 15 is arranged between this projection 83 and main body 1, with the rotation of restrictive pump oil ball 7, and only allows pump oil ball 7 to move up and down along axis 330.When pressing pump oil ball 7, spiral chute bayonet lock 81, in the interior movement of spiral chute 8, drives spiral cell body 6 to rotate, and then drives Air strangler spindle 3 to rotate.
Fig. 1, Fig. 4, Fig. 6 and Fig. 7 show the linking mechanism of Carburetor.This linking mechanism comprises pump oil ball 7, spiral cell body 6, pump oil ball return spring 5, Air strangler spindle 3, Air strangler spindle returning spring 4, air throttle linkage arm 60, chock plate transmission arm 50, throttle plate pin 12, return spring of throttle 10 and throttle line support 13.Throttle line support 13 is installed in rotation in main body 1, and it is fixedly connected with by riveted joint with throttle plate pin 14.Air throttle linkage arm 60 has circular portion 64 and anastomosis part 65, and circular portion 64 has hole, to be riveted on Air strangler spindle 3 by riveted joint form.Anastomosis part 65 has circular groove 51 and bump bonding 66, circular groove 51 cambers, in it, accommodate the joining pin 62 being fixedly mounted in main body 1, with when pump oil ball 7 is pressed, the rotation of Air strangler spindle 3 drives circular groove 51 to slide along joining pin 62, thereby the top of bump bonding 66 is contacted with chock plate transmission arm.As shown in Figure 6, chock plate transmission arm 50 is rotatably connected in main body 1 by screw, and its clockwise direction shown in can mark 68 rotates, and air throttle linkage arm 60 rotates with the counter clockwise direction of 61 marks.
With further reference to Fig. 3 to Fig. 9, before engine start, need to be with hand extrusion pump oil ball 7, the position shown in Fig. 3 is the state of pump oil ball 7 while not pressing.Now, Air strangler spindle 3 is in full-gear, and as shown in Figure 3, closure 11 is in full-shut position, and linking mechanism is not in linkage status, as shown in Figure 4.In one exemplary embodiment of the present invention, specifically referring to Fig. 8, because Air strangler spindle is in fully open position, the flat place 341 of Air strangler spindle milling on Air strangler spindle 3 communicates with the hole 36 that leads to atmosphere, and the aperture communicating with engine impulse aperture 38 is blocked in Air strangler spindle cylndrical surface 34.Now, the measuring room 33 that is positioned at main body 1 bottom communicates with atmosphere, and does not communicate with the impulse chamber 35 on Carburetor.Now, the pressure in measuring room 33 and atmospheric equilibrium, can not receive the pressure pulse from engine crankcase.As shown in Figure 8, between impulse chamber 35 and pulse aperture 38, one-way valve 31 is installed.In main body 1, be provided with this one-way valve 31, object is to allow one of motor generation blow the pulse of only blowing in a suction pulse can enter measuring room 33, and the pulse of inhaling can not enter measuring room 33 by one-way valve 31.A pulse metering-orifice 30 is also housed on one-way valve, and it can regulate the size of self as required, so as to adjusting the size that enters the impulsive force in measuring room 33.
When user uses hand extrusion pump oil ball 7, as shown in Figure 5, pump oil ball 7 is under the effect of locating stud 15, and pump oil ball 7 can not rotate around axis 330, can only move axially along axis 330.Due to the spiral chute bayonet lock 81 being fixedly connected with on Air strangler spindle 3 only can be on spiral cell body 6 the interior movement of spiral chute 8, this moves and drives spiral chute 8 to rotate, and then promotes Air strangler spindle 3 and rotate.In a preferred embodiment, when pump oil ball 7 is pressed, Air strangler spindle 3 rotates 75 °.Due to the rotation of Air strangler spindle 3, it drives the air throttle linkage arm 60 being riveted on Air strangler spindle 3 along counter clockwise direction 61 rotations shown in Fig. 6.Now, the circular groove 51 of the anastomosis part 65 of air throttle linkage arm 60 moves along the joining pin 62 being fixedly connected in main body 1, thereby realizes the counter clockwise direction rotation of air throttle linkage arm 60.In this case, anastomosis part 65 promotes chock plate transmission arm 50 and rotates along the clockwise direction 68 shown in Fig. 6, and now linking mechanism is in linkage status.
When user unclamps pump oil ball 7, pump oil ball 7 self-return again under the effect of pump oil ball return spring 5.At linking mechanism in interlock in the situation that, Air strangler spindle 3 has rotated 75 degree, and the now milling on Air strangler spindle 3 partially place 341 communicates with pulse aperture 38, and communicates with measuring room 33, and the hole 36 that leads to atmosphere is blocked in cylndrical surface 34 on Air strangler spindle 3, as shown in Figure 9.Now, from the pressure pulse 37 in engine crankcase through impulse chamber 35, pulse metering-orifice 30, one-way valve 31, pulse aperture 38, enter in measuring room 33, metering diaphragm 2110(in these pressure pulse 37 promotion measuring rooms 33 is referring to Figure 13), by this metering diaphragm 2110, the fuel oil in measuring room 33 is extruded, from main nozzle 20 (referring to Figure 11) ejection of Carburetor, played the object that adds rich mixture, thereby be beneficial to the starting of motor.
With reference now to Figure 10 to Figure 13,, describe paraffin temp controller 200 of the present invention in detail.As shown in figure 11, paraffin temp controller 200 of the present invention comprises red copper seat 204, paraffin 205, diaphragm 206, main body 203, liquid media 207, plunger 201, push rod 202, vent 208, return spring 209.The cross section of red copper seat 204 is the stepped rectangles of tool, and its inside has the chamber that holds paraffin 205.The bottom of main body 203 has the chamber of expansion, and it is by being to be for example threaded or the mode of riveting is connected with red copper seat 204, so that red copper seat 204 is fixed on main body 203.Push rod chamber 211 and the liquid media chamber 210 in main body 203 with hollow.Liquid media chamber 210 is positioned at the bottom of main body 203, and its cross section is the tubaeform of enlarging, is used for holding liquid media 207.The liquid media 207 that the present invention adopts are for a kind of density is large, be difficult for dry flow-like material, and in an exemplary embodiment, liquid media of the present invention are the mixture of molybdenum disulfide pulvis and butter.Between liquid media 207 and paraffin 205, there is diaphragm 206, above liquid media 207, install by can be along push rod chamber 211 plungers 201 that slide.Push rod 202 is arranged in the push rod chamber 211 in main body 203 movably.Push rod 202 comprises elongate portion 213, the jut of falling arrow-shaped 212 and afterbody 214, and the radial diameter of elongate portion 213 is little compared with the smallest radial diameter in push rod chamber 211, can enter in push rod chamber 211 guaranteeing from the atmosphere of vent 208.When external temperature is during lower than 20 °, the jut of falling arrow-shaped 212 of push rod 202 relies on the precompose of return springs 209 to be firmly resisted against on the shoulder seat 215 of main body 203, the passage with sealing type measuring chamber 33 with push rod chamber 211.One end of return spring 209 is connected on the afterbody 214 of push rod 202, and the other end is fixed in lower cover 19, with the movement with push rod 202, is axially compressed.
In conjunction with Figure 10-13, further describe now the working procedure of paraffin temp controller 200 of the present invention.Paraffin temp controller 200 is usingd the paraffin 205 that held in its red copper seat as temperature-sensing element, it utilizes the characteristic of expanding with heat and contract with cold of paraffin 205 to promote push rod 202 and moves, thereby the jut of falling arrow-shaped 212 that makes push rod 202 is opened or the connecting passage of closed vent hole 208 and measuring room 33, thus the oil spout of control engine main nozzle 20 in measuring room when starting.According to paraffin controller 200 of the present invention, it can be configured in temperature during lower than the first temperature threshold, the push rod 202 of paraffin temp controller 200 is in closed condition, and in temperature during higher than the second temperature threshold, the push rod 202 of paraffin temp controller 200 is in open mode, specifically as shown in Figure 12 and Figure 13.In an exemplary embodiment, the first temperature threshold of the present invention is set as for example 20 °, and the second temperature threshold is set as for example 38 °, according to the different application occasion of motor, the first temperature threshold of the present invention or the second temperature threshold can change, for example the first temperature threshold can be set as the arbitrary temp value between 18 ° to 25 °, and the second temperature threshold can be set as the arbitrary temp value between 35 ° to 42 °.
At motor in low-temperature condition, for example, when ambient temperature is lower than first temperature threshold of 20 °, if pilot engine, need to use hand extrusion pump oil ball 7, by the spiral chute 8 on spiral cell body 6, promote Air strangler spindle 3 rotations, then the air throttle linkage arm on Air strangler spindle 3 60 promotes chock plate transmission arm 50, makes linking mechanism in linkage status, the flat place 341 of the now milling on Air strangler spindle 3 connects the pulse of motor 37 and the measuring room 33 of Carburetor, sees Fig. 9.Pulse 37 enter measuring room 33 interior after, pulsation promotes the metering diaphragm 2110 in measuring room 33.Because the push rod 202 of paraffin temp controller 200 is now in closed condition, vent 208 does not communicate with atmosphere, impulsive force is directly extruded the fuel oil in measuring room 33 103 from main nozzle 20, because the fuel oil of now extruding from main nozzle 20 is at the dense air and fuel mixture of the interior formation of mixing chamber 101, thereby be convenient to the starting of motor.
When motor at high temperature starts, for example, when ambient temperature is higher than second temperature threshold of 38 °, if pilot engine, first use hand extrusion pump oil ball 7, similarly under the promotion of spiral chute 8, Air strangler spindle 3 rotations, then drive the air throttle linkage arm 60 on Air strangler spindle 3 to be rotated counterclockwise, thereby promoting air throttle linkage arm 50 turns clockwise, make linking mechanism in linkage status, as shown in Figure 6, the flat place 341 of the now milling of Air strangler spindle 3 connects the pulse of motor 37 and measuring room 33.Because paraffin temp controller 200 is under the effect of paraffin 205, promote push rod 202, push rod 202 overcomes the tension force of return spring 209, the jut of falling arrow-shaped of push rod 212 leaves the shoulder seat 215 on main body 203, push rod 202, in open mode, makes push rod chamber 211 communicate with atmosphere by vent 208.Now, even if the pulse 37 entering in measuring room 33 can promote to measure diaphragm 2110, but because vent 208 communicates with atmosphere, the power acting on metering diaphragm 2110 can be little a lot, therefore measuring diaphragm 2110 can not extrude more fuel oil from main nozzle 20, can only extrude a small amount of fuel oil, see Figure 13.Now, the fuel oil spraying during by aditus laryngis 104 is less, and still not high at the interior formed mixture strength of mixing chamber 101, this has just realized the less fuel demand of piloting engine under high temperature, thereby meets the starting demand under engine high-temperature.
Finally, with reference to Figure 14, Figure 14 is the oil circuit figure of the needle-valve system in the main body in Fig. 1.This needle-valve system comprises pintle valve seat 40, needle-valve 41, needle-valve Rocker arm 42, metering spring (not shown), metering diaphragm 2110, sealing paper washer 43.Carburetor, at prestart, by extrusion pump oil ball 7, in the pump oil interior generation vacuum of ball 7 (suction), then by fuel oil sucking-off from oil can, then enters in the oil inlet pipe 18 of Carburetor.Fuel oil enters in oil inlet pipe 18, enters upper cover 14, from the oil-feed oil circuit of upper cover 14, by the laggard oil circuit that enters main body 1, then enters in the needle-valve system of the Carburetor shown in Figure 14.When fuel oil enters needle-valve system, by pintle valve seat 40, needle-valve 41, enter measuring room 33, a fuel oil part in measuring room 33 enters in pump oil ball 7 again, and unnecessary fuel oil is got back to oil can from the outlet of pump oil ball 7, the fuel oil of a part stay measuring room 33 interior during as engine operation with oil.Because there is the effect of metering spring, the fuel oil in the measuring room 33 of Carburetor reach a certain amount of after under the effect of metering spring, needle-valve 41 is closed, unnecessary fuel oil can not enter in measuring room 33.Otherwise, the launched machine of fuel oil in measuring room 33 is from main nozzle 20 sucking-offs (seeing Figure 11), after lacking to a certain extent, under the effect of motor vacuum, metering diaphragm 2110 promotes needle-valve Rocker arm 42, then drives needle-valve 41 by needle-valve Rocker arm 42, and needle-valve 41 is opened, new fuel oil enters measuring room, meets the need of work of motor.
Although at length disclose the present invention with reference to accompanying drawing, should be understood that, these descriptions are only exemplary, are not used for limiting application of the present invention.Protection scope of the present invention is limited by accessory claim, and can be included in pin various modification made for the present invention, remodeling and equivalents in the situation that does not depart from protection domain of the present invention and spirit.
Claims (23)
1. a linking mechanism for Carburetor, it comprises: pump oil ball, spiral cell body, Air strangler spindle, air throttle linkage arm, chock plate transmission arm and throttle plate pin; It is characterized in that: on described spiral cell body, be provided with spiral chute, be provided with spiral chute bayonet lock on described Air strangler spindle, described spiral chute bayonet lock extends through spiral chute, so that spiral cell body is positioned on Air strangler spindle; Described chock plate comprises the flat place of Air strangler spindle milling, and it does not communicate with atmosphere when pump oil ball is pressed; When the extruding of pump oil ball, the air throttle linkage arm on Air strangler spindle and the interlock of chock plate transmission arm, thus drive throttle plate pin to rotate.
2. linking mechanism according to claim 1, is characterized in that, between described air throttle linkage arm and main body, is also connected with Air strangler spindle returning spring on described Air strangler spindle.
3. linking mechanism according to claim 2, is characterized in that, pump oil ball return spring is installed between described spiral cell body and described main body, and it is balance Air strangler spindle power in the axial direction together with Air strangler spindle returning spring.
4. according to the linking mechanism described in any one in claim 1-3, it is characterized in that, on described Air strangler spindle, be provided with draw-in groove.
5. linking mechanism according to claim 4, is characterized in that, in described draw-in groove, back-up ring is installed, and with the Air strangler spindle Air strangler spindle when pressing pump oil ball that guarantees to be arranged in main body, can not move along shaft axis.
6. linking mechanism according to claim 5, is characterized in that, in described back-up ring outside, packing ring is installed, so that pump oil ball return spring is connected between packing ring and spiral cell body movably.
7. linking mechanism according to claim 4, is characterized in that, described spiral cell body has integrated projection.
8. linking mechanism according to claim 7, is characterized in that, between described projection and described main body, locating stud is installed, with the rotation of restrictive pump oil ball.
9. linking mechanism according to claim 8, is characterized in that, described locating stud only allows pump oil ball to move along axial direction; When the extruding of pump oil ball, spiral cell body drives Air strangler spindle to rotate predetermined angular, and Air strangler spindle drives air throttle linkage arm counterclockwise to rotate, and air throttle linkage arm promotes chock plate transmission arm clockwise direction and rotates.
10. linking mechanism according to claim 9, is characterized in that, described predetermined angular is 75 °.
11. according to the linking mechanism described in any one in claim 1-3,5-9, it is characterized in that, described linking mechanism also comprises return spring of throttle and throttle line support.
12. linking mechanisms according to claim 11, is characterized in that, described return spring of throttle is arranged between main body and throttle line support, and described throttle line support is fixedly connected on throttle plate pin.
13. linking mechanisms according to claim 7, is characterized in that, described air throttle linkage arm has circular portion and anastomosis part.
14. linking mechanisms according to claim 13, is characterized in that, described circular portion has hole, air throttle linkage arm is riveted on Air strangler spindle by riveted joint form.
15. linking mechanisms according to claim 13, is characterized in that, described anastomosis part also has circular groove and bump bonding.
16. linking mechanisms according to claim 15, it is characterized in that, described circular groove camber, in it, accommodate the joining pin being fixedly mounted in main body, with when pump oil ball is pressed, the rotation of Air strangler spindle drives circular groove to slide along joining pin, thereby the top of bump bonding is contacted with chock plate transmission arm.
17. linking mechanisms according to claim 1, is characterized in that, described chock plate transmission arm is rotatably connected in main body by fastening piece.
18. linking mechanisms according to claim 17, is characterized in that, described fastening piece is screw, bolt, rivet or pin.
19. linking mechanisms according to claim 1, is characterized in that, described Air strangler spindle also has Air strangler spindle cylndrical surface, and it does not block the aperture communicating with engine impulse aperture when pump oil ball is pressed.
20. linking mechanisms according to claim 19, is characterized in that, when pump oil ball is pressed, the measuring room that is positioned at the lower body part of Carburetor communicates with the impulse chamber on Carburetor by the flat place of described Air strangler spindle milling, and does not communicate with atmosphere.
21. linking mechanisms according to claim 20, is characterized in that, between described impulse chamber and pulse aperture, one-way valve are installed, and pulse metering-orifice is also housed on described one-way valve.
22. linking mechanisms according to claim 1, is characterized in that, described Carburetor comprises main body, have needle-valve system in described main body.
23. linking mechanisms according to claim 22, is characterized in that, described needle-valve system comprises pintle valve seat, needle-valve, needle-valve rocking arm, metering spring, metering diaphragm, sealing paper washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360321.3A CN102828853B (en) | 2012-09-25 | 2012-09-25 | Linkage mechanism of carburetor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360321.3A CN102828853B (en) | 2012-09-25 | 2012-09-25 | Linkage mechanism of carburetor |
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| Publication Number | Publication Date |
|---|---|
| CN102828853A CN102828853A (en) | 2012-12-19 |
| CN102828853B true CN102828853B (en) | 2014-07-30 |
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| CN201210360321.3A Expired - Fee Related CN102828853B (en) | 2012-09-25 | 2012-09-25 | Linkage mechanism of carburetor |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013019379A1 (en) | 2013-11-19 | 2015-05-21 | Andreas Stihl Ag & Co. Kg | Hand-held implement with a pump, pump and pump bellows |
| CN104533663B (en) * | 2014-12-22 | 2016-10-26 | 江苏苏美达五金工具有限公司 | Rotary valve type carburetor choke link gear |
| CN106988931B (en) * | 2017-05-19 | 2023-01-06 | 威马农机股份有限公司 | Choke valve and throttle valve linkage control mechanism of engine carburetor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE522321C2 (en) * | 1999-02-18 | 2004-02-03 | Walbro Corp | Carburetor control mechanism |
| CN200989258Y (en) * | 2006-12-22 | 2007-12-12 | 重庆宗申技术开发研究有限公司 | Universal petrol engine choke valve operating mechanism |
| CN101881239A (en) * | 2010-06-23 | 2010-11-10 | 陈其安 | Simple start diaphragm type carburetor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005155525A (en) * | 2003-11-27 | 2005-06-16 | Zama Japan Co Ltd | Carburetor with manual choke mechanism |
| US7913659B2 (en) * | 2008-06-20 | 2011-03-29 | Zama Japan Kabushiki Kaisha | Carburetor start system |
| CN203009081U (en) * | 2012-09-25 | 2013-06-19 | 浙江瑞星化油器制造有限公司 | Linkage mechanism of carbureter |
-
2012
- 2012-09-25 CN CN201210360321.3A patent/CN102828853B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE522321C2 (en) * | 1999-02-18 | 2004-02-03 | Walbro Corp | Carburetor control mechanism |
| CN200989258Y (en) * | 2006-12-22 | 2007-12-12 | 重庆宗申技术开发研究有限公司 | Universal petrol engine choke valve operating mechanism |
| CN101881239A (en) * | 2010-06-23 | 2010-11-10 | 陈其安 | Simple start diaphragm type carburetor |
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| CN102828853A (en) | 2012-12-19 |
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Denomination of invention: Linkage mechanism of carburetor Effective date of registration: 20210322 Granted publication date: 20140730 Pledgee: Zhejiang Ruian Rural Commercial Bank Co.,Ltd. Plaza Science and Technology Branch Pledgor: Zhejiang Ruixing Carburetor Manufacturing Co.,Ltd. Registration number: Y2021980001891 |
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Date of cancellation: 20220330 Granted publication date: 20140730 Pledgee: Zhejiang Ruian Rural Commercial Bank Co.,Ltd. Plaza Science and Technology Branch Pledgor: Zhejiang Ruixing Carburetor Manufacturing Co.,Ltd. Registration number: Y2021980001891 |
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