CN1420265A

CN1420265A - Compensation mechanism of carburetter

Info

Publication number: CN1420265A
Application number: CN 01134872
Authority: CN
Inventors: 王明卿
Original assignee: Hengliwei International Sci & Tech Co Ltd
Current assignee: Hengliwei International Sci & Tech Co Ltd
Priority date: 2001-11-16
Filing date: 2001-11-16
Publication date: 2003-05-28

Abstract

A compensating mechanism of carburetor is composed of the compensating valve consisting of valve body, buffer rod and the jack-needle connected to throttle valve for speeding-up the concentrating of oil gas, the secondary oil tube connected to float chamber for quantitatively supply oil gas, and the accelerating pump mechanism.

Description

The compensation mechanism of Carburetor

Technical field

The present invention relates to a kind of compensation mechanism of Carburetor, be meant a kind of collocation structure that compensates the Carburetor of Carburetor oil gas feed speed with several structures respectively especially.

Background technique

The heart of automobile is the smooth and easy of engine running, and the control of engine is to be undertaken by Carburetor, and it can supply with idling to very fast required oil plant Carburetor; Present commercially available Carburetor, especially diaphragm type (vacuum conditions) Carburetor, when test or matching engine, on certain speed (for example: in the time of 70km/h), oil gas often has not enough phenomenon, causes the engine combustion temperature to raise, and causes nitrogen oxide (NOx) discharging excessive, and NOx is a toxic gas, and is harmful to health.And nitrogen oxide also makes the quality variation of air, influence atmospheric stable, but engine operating speed scope major part is between 50-80km/h in travelling, relatively, the influence that is caused is bigger.Its reason is, the smoothness that oil gas is supplied with as long as give replenishing of oil gas in good time, just can solve the above problems.

Shown in Figure 1, the inventor had before filed an application the Carburetor 1a that the tool auto chock is regulated, wherein have body 10a, the 11a of float chamber, suction port 12a, air outlet 13a, air throttle 5a, main oil pipe 50a etc., the utilization ball float is to the control of the suction gas of Carburetor, oneself has fine improvement to the performance of Carburetor, but improves than still remaining for oil and Air mixing.

For the Carburetor that more meets the market actual demand is provided, the inventor researches and develops, to solve the supply problem that known technology easily produces the oil gas deficiency in the use.

Summary of the invention

Main purpose of the present invention is, a kind of compensation mechanism of Carburetor is provided,, improves engine performance in order to reduce the NOx value, have additional a recuperation valve in Carburetor, in order to enrichment oil gas, the oil gas that is short of when particularly running up reduces the temperature of engine running, just can improve the horsepower of engine, reduce and pollute,, truly have effect through test.

Secondary objective of the present invention is, a kind of compensation mechanism of above-mentioned Carburetor is provided, only be provided with the working connection of forming by main oil pipe and main spindle in the Carburetor, be difficult to satisfy the needs of engine different rotating speeds and various performances, so be equipped with an auxiliary compensation oil circuit, the allowance so that the running of Carburetor matching engine to be provided, the compensation oil circuit is to provide replenishing of a certain amount of oil gas at any time for whole process, just can satisfy the needs of engine performance, and reach the effect that enlarges horsepower.

Another purpose of the present invention is, a kind of compensation mechanism of above-mentioned Carburetor is provided, more be provided with an accelerating pump in the Carburetor, be the oil gas supplementary mechanism that is provided with the air throttle parallel connection, directly, make and working connection upwards suction simultaneously, and directly be directed at the oil nozzle place the oil gas sucking-off in the float chamber, to carry out the synchronous reinforcement of oil gas, also can therefore produce the better acceleration of engine.So add accelerating pump and auxiliary oil circuit with recuperation valve, can provide when engine is most to turn round, best oil gas mixes, and can satisfy the needs of engine fully.

For reaching above-mentioned purpose, the invention provides a kind of collocation structure of Carburetor, establish a recuperation valve in the Carburetor, one is connected to air throttle, it contains a valve body, have a channel in the valve body, buffer bar and thimble are arranged in channel, and be socketed with spring respectively, buffer bar has a cross-drilled hole to enter for the thimble syringe needle, valve body is provided with into and out of channel with respect to buffer bar, thimble, and thimble and air throttle join, to produce the effect of quickening enrichment oil gas.Be connected to the float chamber with a secondary oil pipe in addition, form whole process quantitative oil gas is provided; Be provided with an accelerating pump mechanism again, the lower end bifurcated of throttle line is divided into two, article one, drive air throttle, another drives rotation and lifts up bar, rotation is lifted up bar pivot and is connected to body, rotation is lifted up the bar the other end and is plugged in that a plunger joins in the pipeline of float chamber, and pipeline joins with oil-feed cover group and float chamber, and other joins pipeline to go out oil jacket group and oil nozzle.

A kind of Carburetor collocation structure provided by the present invention, it comprises:

One valve body, it is arranged in the Carburetor body, and the air throttle place of close Carburetor, have a channel in the valve body, the outer end of channel forms a thin channel, and valve body is provided with oil gas inlet and oil gas vent, the oil gas inlet joins with the float chamber of Carburetor, and the air outlet of oil gas vent and Carburetor joins;

One buffer bar, it is located at the outside in the valve body channel, it has thin end and butt end, between the thin channel interior edge face of thin end and valve body, be socketed with a buffer bar spring, and make thin end stretch out the thin channel of valve body, locate with a fastener again, the butt end of buffer bar is provided with a straight hole, the oil gas inlet of straight hole and valve body joins, and the end face of butt end is provided with a cross-drilled hole, and cross-drilled hole communicates with straight hole; And

One thimble, it is located at the inboard in the valve body, it has thick end and thin end, thin end is connected to a syringe needle, between thin end and buffer bar interior edge face, be socketed with a top spring, thick end is connected to the thin end of a contact, and a locking cap of valve body is stretched out in the thin end of contact, and pass the Carburetor body to and solar term

Valve joins;

When roof pressure by air throttle, make the syringe needle of thimble can insert the cross-drilled hole of buffer bar, and the circulation of sealing cross-drilled hole, if thimble does not join with air throttle, then make between the oil gas inlet of valve body and oil gas vent and form the loop, so form recuperation valve, to produce the effect of quickening enrichment oil gas with valve body, buffer bar, thimble.

Wherein establish a compensation oil circuit in addition, it is connected to the float chamber of Carburetor with a secondary oil pipe, and makes secondary oil pipe be connected to the air throttle place of Carburetor, and forming provides quantitative oil gas.

Wherein be provided with an accelerating pump again, the lower end bifurcated of throttle line is divided into two,, the air throttle of drive Carburetor, another drives a rotation simultaneously and lifts up the bar rotation, it is the appearance that is articulated in the Carburetor body that the bar stage casing is lifted up in the rotation of tool elasticity, rotation is lifted up the bar the other end and is joined with a plunger that is plugged in the float chamber of Carburetor, the plunger of tool elastic movement is to insert in the pipeline of sidewall of float chamber of Carburetor, this pipeline has non-return oil-feed cover group and float chamber with one and joins, and this pipeline has the non-return oil jacket group that goes out with one and joins with the oil nozzle that one of Carburetor is communicated with channel, when plunger moves down then fuel-displacedly, move then oil-feed on the plunger.

Description of drawings

Reach technology, means and the effect that predetermined purpose is taked for further understanding the present invention, be described in detail as follows for a preferable feasible embodiment and conjunction with figs. now, believe purpose of the present invention, feature and advantage, obtain thus deeply and concrete understanding.

Fig. 1 is the sectional view of known technology;

Fig. 2 is a stereogram of the present invention;

Fig. 3 is a partial cross-sectional perspective view of the present invention;

Fig. 4 is a front view of the present invention;

Fig. 5 is a rear view of the present invention;

Fig. 6 is the sectional view (in action) of recuperation valve of the present invention;

Fig. 7 is provided with the position sectional view of recuperation valve for the present invention;

Fig. 8 is sectional view in the action of recuperation valve of the present invention;

Fig. 9 compensates the assembled sectional view of oil pipe for the present invention;

Figure 10 compensates the sectional view of the secondary oil pipe of oil pipe for the present invention;

Figure 11 compensates the sectional view of the upper shield of oil pipe for the present invention;

Figure 12 compensates the top view of the upper shield of oil pipe for the present invention;

Figure 13 is provided with the position sectional view of compensation oil pipe for the present invention;

Figure 14 is provided with the partly vertical profile sectional view of facing of gasoline pump for the present invention;

Figure 15 is provided with the side-looking part vertical profile sectional view of gasoline pump for the present invention.

Embodiment

Consult Fig. 2 to shown in Figure 15, compensation mechanism for a kind of Carburetor of the present invention, Fig. 2 to Fig. 5 wherein, Carburetor 1 has a body 10, be connected to a float chamber 11 in the below of body 10, a side of body 10 is provided with a suction port 12, with suction port 12 be connected to by an air-strainer (figure slightly) connect to pipeline, the opposite side of body 10 is provided with an air outlet 13, is connected to air outlet 13 and draws the pipeline that is connected to engine air admittance menifold (figure slightly).And be provided with assemblies such as draining hole 111, draining bolt 112, electrical control group 113, idle bolt 114, oil gas recovery tube 115, conducting air pipe 116, oil gas adjusting bolt 117 in the Carburetor.

And for example shown in Fig. 3,7,8, has the channel of vertically offering always 14 in the body 10, in straight channel 14, be provided with an air throttle 5, air throttle 5 has a valve piece 51, and valve piece 51 is connected to a main spindle 52, is covered with a upper shield 53 on the valve piece 51, be equipped with a pressure spring 54 on the upper shield 53, body 10 in straight channel 14 upper ends forms the straight-tube shape overhangs, and is covered with a capping 55, and capping 55 allows an end of a throttle line 71 stretch into valve piece 51 to join.

Straight 14 ends of channel are main oil gallery perforation 56, main oil gallery perforation 56 is connected to the epimere of a main oil pipe 50, the hypomere of main oil pipe 50 extends float chamber 11, the channel that allows main spindle 52 insert in the main oil pipe 50, level is equipped with a fixed channel 16 at the nearly straight place, channel 14 bottom of body 10, and is equipped with a recuperation valve 2 in fixed channel 16.Wherein form working connection by main oil pipe and main spindle.

And body 10 has a filler opening 15, filler opening 15 joins with oil pipe and fuel tank, and oil imported float chamber 11, the body bottom surface is connected to the floating drum of an elastic movement, with fuel head in the control float chamber, allow oil enter the valve chamber of straight channel 14 by working connection, with mixes by the air-strainer inhaled air after enter intake manifold, the importing engine combustion.Because the different speed of a motor vehicle needs the ratio of different fuel oil and air, need be provided with compensation mechanism of the present invention, could produce and be willing to good use effect.

As shown in Fig. 3,6, recuperation valve 2 its fixed channel 16 the inners are arranged in the straight channel 14 that air throttle 5 moves up and down with a thin channel 17, and recuperation valve 2 contains a valve body 20, have one in the valve body 20 and run through channel 21, in running through channel 21, be provided with a buffer bar 31 and a thimble 41, and buffer bar 31, thimble 41 are socketed with a

spring

37,47 respectively.

Wherein run through channel 21 and be provided with oil gas inlet 22 at the place, the inner that valve body 20 is equivalent to buffer bar 31, and be provided with an oil gas vent 23 at 43 places, thin end that valve body 20 is equivalent to thimble 41 the inners, be provided with an annular groove 24 to be equipped with the O type ring 25 of a hermetic barrier at

oil gas inlet

22 and 23 of oil gas vents, be provided with a thin channel part 26 at channel 21 places of running through that valve body 20 is equivalent to buffer bar 31 outer ends again.

Make the interior edge face of thin channel part 26 become the outer abutment end of buffer bar spring 37, and the interior abutment end of buffer bar spring 37 is butt end 32 end outwardly that is butted on buffer bar 31, form the thin end 33 that buffer bar spring 37 is placed in buffer bar 31, and make buffer bar 31 thin ends 33 stretch out valve body 20, and be provided with an embedding ditch 34, fixing at embedding ditch 34 with a fastener 29.

Buffer bar 31 butt ends 32 end inwardly offer a cross-drilled hole 36, and butt end 32 is provided with a straight hole 38 with respect to oil gas inlet 22, more are provided with a circular groove 35 in butt end 32, and circular groove 35 is connected to an O type ring 39.

Be connected to a syringe needle 44 in the thin end 43 of thimble 41, thimble 41 syringe needles 44 can be entered in the cross-drilled hole 36, also be to allow thimble spring 47 be placed in the thin end 43 of thimble 41, thimble 41 thin ends 43 connect a thick end 42, spring 47 is peaked between the interior edge face of the interior edge face of thick end 42 and buffer bar 31 butt ends, thin again end 43 is provided with a circular groove 45, and circular groove 45 is connected to an O type ring 49.

The thick end 42 of thimble 41 is equipped with the thin end 46 of contact, the thin end 46 of contact has a bulbous end 40, and what make that the thin end 46 of contact stretches out valve body 20 runs through channel 21, and with a locking cap 48 interlockings, locking cap 48 is partly to penetrate to run through channel 21, and contacts with thick end 42.

The structure of recuperation valve 2 as shown in Figure 6, its installing after the position, as shown in Figure 7, valve body 20 is provided with the inlet, outlet channel with respect to buffer bar 31, thimble 41; Its action diagram, extremely shown in Figure 8 as Fig. 7, move to the thin end of contact 46 bulbous end 40 of recuperation valve 2 thimbles 41 down along straight channel 14 when the active valve block 53 of air throttle 5, allow thimble 41 move inwardly and join with the cross-drilled hole 36 of buffer bar 31, and then the channel of sealing cross-drilled hole 36, have only valve piece 51 to be pulled rising when air throttle 5, state by Fig. 7 to Fig. 8, allow the straight channel space of valve piece 51 belows produce suction, and no longer seal cross-drilled hole 36, allow oil gas go to oil gas inlet 22 straight holes 38 that enter in the buffer bar 31 of valve body 20 via air inlet channel 18, cross-drilled hole 36 runs through oil gas vent 23 that channel 21 goes to valve body 20 to the channel 19 of giving vent to anger to thimble 41, is forwarded to oil nozzle.Wherein air inlet channel 18 is for being located in the body 10, and joins with an oil pipe 180, directly provides oil gas by float chamber 11 by oil pipe 180.The channel 19 of giving vent to anger is place, side in the air outlet 13 that directly sprays to body 10.

Form the oil gas that produces additional working connection with recuperation valve 2, promptly the valve piece 51 of air throttle 5 is drawn back the effect that just produces acceleration enrichment oil gas to certain position by the main lattice framing 72 of throttle line 71.So during idle running, the oil gas channel of recuperation valve is blocked the effect of not producing, and when quickening, position that must air throttle moves to the position that is provided with that is higher than recuperation valve, just produce the function of strengthening oil gas, thimble can be with the moving and telescopic moving of valve piece 51, the amount of augmenting of regulating oil gas, its by this to

spring

37,47 controls.

In engine runs up, obtain the oil gas that replenishes, just reduce the operating temperature of engine, and make the burning abundance of oil gas, strengthen horsepower, relatively, allow the driver need not open out line again, just produce, just can reach fuel-efficient effect than the better speed of expection.

Be provided with as an auxiliary compensation oil circuit 6 in working connection is other parallel in addition, shown in Fig. 3,13, be mainly with a secondary oil pipe 61 and be connected to float chamber 11, form whole process quantitative oil gas is provided.

Shown in Fig. 9 to 12, wherein secondary oil pipe 61 is distinguished into down pipe portion 62 and last pipe portion 64, distinguish with prominent ring portion 63 between upper and lower pipe portion, make down pipe portion 62 be arranged in float chamber 11, the secondary oil duct perforation 60 that allows pipe portion 64 plant body 10, and be provided with several oil-feed pores 65 in last pipe portion 64, and oil gas is mixed via channel 66 in one in the secondary oil pipe 61, and be equipped with upper shield 67 in the top of secondary oil pipe 61, make secondary oil pipe 61 be positioned engaging groove 68 places of upper shield 67, and upper shield 67 is provided with several and goes out oil-gas hole 69, is connected with straight channel 14 to go out oil-gas hole 69.

Its assembling back can be subjected to the mobile of air throttle 5 as Fig. 9 and shown in Figure 13, produces air-breathing effect, with oil gas that capacity is provided to engine.

Shown in Fig. 2 to 4 and Figure 14,15, the present invention is provided with an accelerating pump 7 mechanisms again, and the lower end bifurcated of throttle line 71 is divided into two

lattice framings

72,73, and main lattice framing 72 wherein is drive air throttle 5 and produces mobile, another then is a time lattice framing 73, and inferior lattice framing 73 is lifted up an end of bar 70 for driving a rotation.

Rotation is lifted up bar 70 for be articulated in a stationary axle 77 of body 10 with a collar portion 74, stationary axle 77 is with a torsion spring 78, the other end of torsion spring 78 is fixed in outside the conducting air pipe 116, make rotation lift up bar 70 with torsion spring 78 and have elasticity to restore, wherein to lift up bar 70 1 ends be that an axle piece 751 that forms an open type button circle 75 and time lattice framing 73 ends joins in rotation, rotation is lifted up bar 70 the other ends and is formed one and press 76, with press 76 with the pipeline 80 that is plugged in float chamber 11 in a plunger 8 join.

Press 76 and have the flexible briquetting 79 of a tool, briquetting 79 be set in press 76 one fixedly wear groove 760 places, there is a bead 791 briquetting 79 lower ends for a spring 792 1 ends that are placed in outside the briquetting 79, and the other end of spring 792 is butted on the inner flanch 761 of fixedly wearing groove 760, briquetting 79 fastens with fixed block after passing and fixedly wearing groove 760, just form the function of the powerful crimping of tools with briquetting 79, and it is shorter to press an arm of force of 76, forms the mechanism of laborsaving shape.

This pipeline 80 is located at the Bian Bichu of float chamber 11, there is the portion of dwindling 81 lower end of plunger 8 to be socketed with a spring 87, spring 87 the other ends are connected to the inner bottom surface of pipeline 80, plunger 8 moves along pipeline 80 inwalls with butt end 82 peripheries, and after the thin end 83 of plunger 8 passes a location and covers 85 perforation 86, cover with a telescopic cover 84, allow telescopic cover 84 the top with press 79 and join, the location cover 85 and 80 in pipeline be provided with an O type ring 88 as hermetic barrier.

Please consult Fig. 8,14,15 simultaneously, pipeline 80 is to join with float chamber 11 with the non-return oil-feed cover group 91 of a tool, oil-feed cover group 91 is the extra heavy pipe portions 90 that are fixed in an inflow pipeline 89, oil-feed cover group 91 has the thin end 92 of a central channel, thin end 92 is an entrance point, the butt end 93 of central channel is with a valve ball 94 and a spring 95, and spring 95 the other ends are connected to the interior bottom end of extra heavy pipe portion 90.

Please consult Fig. 3,14,15 simultaneously, the bottom of pipeline 80 is communicated with a flowline 100, flowline 100 has an extra heavy pipe portion 101, extra heavy pipe portion 101 be connected with a tool non-return go out oil jacket group 96, go out the thin end 97 that oil jacket group 96 has a central channel, thin end 97 is an outlet end, and the butt end 98 of central channel is with a valve ball 99 and a spring 102, and spring 102 the other ends are connected to the interior bottom end of butt end 98.

The outlet 104 that goes out oil jacket group 96 is communicated with channel 105 and is connected to an oil nozzle 106 with one, allow oil spray in the engine by several pores of oil nozzle 106 front ends, and be communicated with in the channel 105 and be connected to a nozzle plunger 107, the outlet 104 that goes out oil jacket group 96 is connected to the O type ring 108 as hermetic barrier, to join with body 10.So, form one and quicken oil circuit.More be provided with a spill port 103 (shown in Fig. 7,15) at pipeline 80 and 11 of float chambers.

When quickening, allowing rotation lift up bar 70 with throttle line 71 rotates, press 76 swing and press to the outer end of plunger 8, allow plunger 8 move to pipeline 80 belows, produce pressure, can seal oil-feed cover group 91 this moment, oneself is flowed into the oil of flowline 100, thin end 97 via the central channel that goes out oil jacket group 96, back down valve ball 99, enter the butt end 98 of central channel, spray to suction port 12 places by outlet 104 to the oil nozzle 106 that is communicated with channel 105, so produce the effect that engine quickens at once, quicken the back and drive with constant speed; When slowing down, move on the plunger 8, the thrust that goes out oil jacket group 96 is disappeared, and seal out oil jacket group 96 automatically, and then more than the suction that moves open oil-feed cover group 91, oil by oil-feed cover group 91 in the acceleration oil circuit that flowline 100 constituted is gone in valve ball 94 by-pass flows, in order to recycling once more.

Spill port 103 is for being located at the upper end near pipeline 80, present oblique setting, can produce oil when making plunger 8 mobile at a slow speed oozes out gradually and is back to floating drum shell 11, and then reduce and oil pressure, even can be not fuel-displaced, allow and quicken oil circuit and further limit again the anxious time side's generation effect of quickening, the needs that just provide extra fuel oil to satisfy engine, and get rid of the situation of quickening the use speed-up loop slowly fully.

Structure in sum, the present invention mainly uses cooperating of recuperation valve and air throttle, produce just to produce more than the specific speed replenishing of oil gas arranged, when losing, thimble holds sealing, promptly there is oil gas to import engine: to provide the at any time additional oil circuit parallel with auxiliary oil circuit again with working connection via channel, be provided with accelerating pump at last, be the anxious speed-up loop that uses of quickening that is provided with synchronously with air throttle, cooperate plunger and advance with the bar of lifting up that rotates, the check valve setting that goes out, allow the anxious function of quickening be produced at any time, so oneself fills the present invention part at the function of Carburetor and improves, and good usability can be provided, be one fully with known different mechanism.

The above is the detailed description and the accompanying drawing of preferred embodiment of the present invention, be not to be used for limiting the present invention, all scopes of the present invention should be as the criterion with described claim scope, and the embodiment and the approximate construction of the spirit variation similar with it of all claims all should be contained among the present invention.

Claims

1. the compensation mechanism of a Carburetor is characterized in that, it comprises:

One thimble, it is located at the inboard in the valve body, it has thick end and thin end, thin end is connected to a syringe needle, between thin end and buffer bar interior edge face, be socketed with a top spring, thick end is connected to the thin end of a contact, and a locking cap of valve body is stretched out in the thin end of contact, and passes the Carburetor body to joining with air throttle;

2. the compensation mechanism of Carburetor as claimed in claim 1 is wherein established a compensation oil circuit in addition, and it is connected to the float chamber of Carburetor with a secondary oil pipe, and makes secondary oil pipe be connected to the air throttle place of Carburetor, and forming provides quantitative oil gas.

3. the compensation mechanism of Carburetor as claimed in claim 1, wherein be provided with an accelerating pump again, the lower end bifurcated of throttle line is divided into two,, the air throttle of drive Carburetor, another drives a rotation simultaneously and lifts up the bar rotation, it is the appearance that is articulated in the Carburetor body that the bar stage casing is lifted up in the rotation of tool elasticity, rotation is lifted up the bar the other end and is joined with a plunger that is plugged in the float chamber of Carburetor, the plunger of tool elastic movement is to insert in the pipeline of sidewall of float chamber of Carburetor, this pipeline has non-return oil-feed cover group and float chamber with one and joins, and this pipeline has the non-return oil jacket group that goes out with one and joins with the oil nozzle that one of Carburetor is communicated with channel, when plunger moves down then fuel-displacedly, move then oil-feed on the plunger.

4. the compensation mechanism of Carburetor as claimed in claim 3 wherein is provided with a spill port between the pipeline of accelerating pump and float chamber.

5. the compensation mechanism of Carburetor as claimed in claim 3, wherein the rotation of accelerating pump is lifted up the bar the other end and is connected to the flexible briquetting of a tool for fixedly wearing groove with one, joins with briquetting and plunger.

6. the compensation mechanism of Carburetor as claimed in claim 3, wherein plunger outer end socket one telescopic cover of accelerating pump.

7. the compensation mechanism of Carburetor as claimed in claim 3, wherein another establishes a compensation oil circuit, and it is connected to the float chamber of Carburetor with secondary oil pipe, and makes secondary oil pipe be connected to the air throttle place of Carburetor, and forming provides quantitative oil gas.