CN1743655A - Vaporizer acceleration device - Google Patents
Vaporizer acceleration device Download PDFInfo
- Publication number
- CN1743655A CN1743655A CN 200510093696 CN200510093696A CN1743655A CN 1743655 A CN1743655 A CN 1743655A CN 200510093696 CN200510093696 CN 200510093696 CN 200510093696 A CN200510093696 A CN 200510093696A CN 1743655 A CN1743655 A CN 1743655A
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- CN
- China
- Prior art keywords
- pin
- closure
- throttle plate
- drum
- check ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
To provide an accelerator which materializes inexpensive manufacturing cost and easy change in discharge start timing of accelerating fuel in an extremely short time. A plurality of pin engaging holes 30a, 30b, 30c are circumferentially drilled in a throttle drum 30. A spring collar 31 is equipped with a cylinder part 31a, a throttle valve shaft inserting hole 31c penetrating to the bottom 31b, a collar part 31d, an engaging pin 31e projecting to one side surface 31d1 of the collar part 31d and a lever press pin 31f projecting to the other side surface 31d2 of the collar part 31d. A throttle valve shaft 5 is inserted into and arranged in the throttle valve shaft inserting hole 31c of the spring collar 31, which is pressed onto a side surface 30d of the throttle drum 30 by the throttle valve return spring S. The engaging pin 31e is selected by one of a plurality of pin engaging holes to be engaged therewith. The spring collar 31 and the throttle drum 30 are synchronously rotated. The lever press pin 31f is arranged so as to face the other end of a link lever 13.
Description
Technical field
The present invention relates to a kind ofly, wherein be particularly related to and a kind ofly supply with the vaporizer acceleration device that quickens fuel to engine spray when quickening operation in that motor is anxious mixed gas quantity that is fed to motor and the vaporizer that mixed gas concentration is controlled.
Background technique
Fig. 4 represents a kind of existing vaporizer acceleration device.When describing with reference to this figure, 1 indicates the passage fuselage main body that air intake passage 2 perforation inside is run through setting, and float chamber main body 3 is arranged on fuselage main body 1 below, is formed the float chamber 4 of the certain fuel of its storage inside by fuselage main body 1 and float chamber main body 3.The throttle plate pin 5 that crosses air-breathing circulation passage 2 rotates and is bearing in freely on the fuselage main body 1, opens and closes air-breathing circulation passage 2 by the closure 6 that is screwed together on this throttle plate pin 5.Closure drum 7 is fixed on from the end of the outstanding throttle plate pin 5 of fuselage main body 1, by throttle down cable, Open valve cable closure drum 7 is connected (throttle down cable, Open valve cable and gas pedal clamp are not shown) on the gas pedal clamp.And the end of helical closure Returnning spring S is limited to closure drum 7, and Returnning spring S can be always puts on (the other end of Returnning spring S is limited to fuselage main body 1) on the closure drum 7 with elastic force along the direction of cut-off valve thus.By this structure, when the operator operated the Open valve cable, closure drum 7 overcame the elastic force of Returnning spring S and its direction of opening to closure (clockwise direction among the figure) is rotated, and makes closure 6 open air-breathing circulation passage 2 therefrom.On the other hand, when the operator operates the cut-off valve cable, by the steering force of throttle down cable and the elastic force of Returnning spring S, closure drum 7 is rotated along closed throttle direction (counter clockwise direction among the figure), make closure 6 close air-breathing circulation passage 2 therefrom.8 are meant to have in inside and quicken fuel suction passage 9 and quicken the acceleration pump chamber that fuel shoots out the opening of path 10, the epimere side of acceleration fuel suction passage 9 communicates with the fuel in the float chamber 4, on the other hand, quickening the hypomere side that fuel shoots out path 10 is opened in the air-breathing circulation passage 2 by not shown pump nozzle.And the pump chamber volume of quickening pump chamber 8 increases and decreases by be arranged on the piston 11 that quickens in the pump chamber 8 free to advance or retreatly.By piston 11 is slidingly arranged in the cylinder-bore 12 freely, the front end that makes piston 11 is provided with facing to quickening pump chamber 8.And, when piston 11 moves downward in the drawings, the pump chamber volume of quickening pump chamber 8 is reduced and the pressure rising, fuel shoots out path 10, not shown pump nozzle sprays and is fed to air-breathing circulation passage 2 by quickening to quicken pump chamber 8 interior fuel.On the other hand, when piston 11 moves upward, the pump chamber volume of quickening pump chamber 8 is increased and pressure descends, the fuel in the float chamber 4 suck and quicken in the pump chambers 8 by quickening fuel suction passage 9, and as shooing out and shoot out quickening fuel next time.In addition, 12 are meant that contraction is arranged at the pump spring that quickens in the pump chamber 8, and this pump spring is granted the elastic force that piston 11 makes progress.13 are meant according to the switching of closure 6 and connecting rod that piston 11 is operated, and the intermediate portion swing by axle 1a bearing connecting rod 13 freely.And, an end 13a of connecting rod 13 is docked setting with the upper end 11a of piston 11, the other end 13b of connecting rod 13 is located at the pin 14 on the closure drum 7 and is provided with facing to upright.Also have, above-mentioned connecting rod 13 makes the upper end 11a butt of one end 13a and piston 11 and the application of force (counter clockwise direction among the figure) by not shown rod spring, therefore, is set at the elastic force of this rod spring littler than the elastic force of pump spring 12.In addition, when the idling aperture of closure 6, with the other end 13b and pin 14 butts or the maintenance setting with gap of connecting rod 13, so when determining that quickening fuel begins to shoot out, select setting.
According to this existing accelerating unit, when closure 6 opens wide fast along with the quick rotation of closure drum 7, the upright the other end 13b butt that is located at pin 14 and connecting rod 13 on the closure drum 7, and connecting rod 13 is swung fast.Just connecting rod 13 is swung along counter clockwise direction among the figure fast with the rotational synchronization of closure 7.And, when connecting rod 13 is swung fast, the upper end 11a of one end 13a of connecting rod 13 by piston 11 make piston 11 apace pushing downwards move, so entering by piston 11, the pump chamber volume of quickening pump chamber 8 is sharply reduced, the indoor pressure of accelerating pump raises, and thus, fuel shoots out path 10, not shown pump nozzle sprays and is fed in the air-breathing circulation passage 2 by quickening to be stored in the fuel that quickens in the pump chamber 8.Spray by this fuel, the temporary transient rarefaction of mixed gas in the time of can being controlled at closure 6 anxious opening, motor can carry out good acceleration operation.In addition, owing to change and during obturation to low aperture opening-wide state from the opening-wide state of middle and high aperture at closure 6, closure drum 7 is along counterclockwise rotating among the figure, so selling 14 does not push an end 13b of connecting rod 13, piston 11 resets upward by the elastic force of pump spring 12, and connecting rod 13 is swung along clockwise direction by piston 11 pushings and resetted towards initial position.
Summary of the invention
In this existing accelerating unit, when acceleration fuel need change according to the characteristic of motor, the sensation of riding etc. at shooing out of closure 6 apertures the zero hour, need correspondence carry out following change:
(1) change of 11a position, piston 11 upper end (change of piston total length)
(2) closure drum 7 is with respect to the change of the riveted joint position of throttle plate pin 5.
(3) change of connecting rod 13.
According to above-mentioned change, need process new mould aspect manufacturing closure drum, the connecting rod especially, thereby cause the increase of manufacture cost.And, be accompanied by the increase of the kind of piston, closure drum, connecting rod, cause the component management operation to complicate, be difficult to produce effectively.The present invention develops to form in view of the above problems, and its objective is provides a kind of vaporizer acceleration device, and it does not increase manufacture cost, and can be easily the utmost point make in the short time quicken fuel to shoot out the zero hour consistent with the characteristic of motor.
To achieve these goals, vaporizer acceleration device of the present invention has: closure drum, it is fixed on the end of the rotatable throttle plate pin that is supported on the fuselage main body freely, and by the closure Returnning spring to the closed throttle direction application of force; Piston, it quickens the fuel suction passage and quickens the pump chamber volume of acceleration pump chamber that fuel shoots out the opening of passage to increase and decrease to having; And connecting rod, its can be swung freely that supporting is that an end dock with piston and the other end facing to stand be located at closure on bulging pin and be provided with; Wherein, the of the present invention the 1st is characterised in that: on the closure drum that is fixedly set on the throttle plate pin end, be to run through on the circumferencial direction at center to be provided with a plurality of pin card complex holes in the axle center with throttle plate pin; On the other hand, the check ring that is arranged on the throttle plate pin periphery has: form the tube portion of end cup-shaped, with connecting be arranged at throttle plate pin patchhole on the bottom of this one, the annular flange portion that extends outside side from the upper end of tube portion, from a side of this lip part outstanding engagement pin and from this lip part another side outstanding bar pushing sell, also have, throttle plate pin rotation insertion freely is arranged in the throttle plate pin patchhole of above-mentioned check ring, and the contraction of helical closure Returnning spring is arranged on the periphery of this one; The lip part of check ring is arranged on the side of closure drum by above-mentioned closure Returnning spring pushing, and the engagement pin engaging is arranged in the pin card complex hole of closure drum, bar pushing pin is provided with in the face of the other end of connecting rod.
And the present invention also has the 2nd feature except above-mentioned the 1st feature, promptly, form above-mentioned check ring by the synthetic resin material, and, make engagement pin and bar pushing pin formation one.
(invention effect)
According to the 1st feature of the present invention, throttle plate pin is inserted in the throttle plate pin patchhole of check ring, the lip part of check ring is pressed on the side of closure drum by the elastic force of closure Returnning spring, and the engagement pin of check ring engages with a plurality of of running through in the pin card complex hole that is arranged on the closure drum.And check ring and closure drum can be one along the engaging of throttle plate pin sense of rotation, and the closure drum rotated at that time, and check ring and closure drum is rotated synchronously.On the other hand, the bar of check ring pushing pin is provided with in the face of the other end of connecting rod.Therefore, when the closure drum rotates, check ring and closure drum rotate synchronously, rotation according to the closure drum, bar pushing pin pushes the opposite side of connecting rod and makes connecting rod swing, one end of connecting rod pushes piston and the indoor fuel of accelerating pump is compressed, thereby can shoot out passage, pump nozzle to air-breathing circulation passage injection supply acceleration fuel by quickening fuel, and can well carry out the acceleration operation of motor.According to the present invention, here by with the engagement pin of check ring with run through a plurality of pin card complex holes that are arranged on the closure drum in any engage, can freely select to shoot out shooing out the zero hour of acceleration fuel from accelerating unit.Like this, this selection can make check ring rotate simply, can carry out the incompatible realization of selection card to engagement pin and pin card complex hole, so do not need new parts, also can carry out such engaging operation easily at short notice.And check ring is pressed on the closure drum by the elastic force of closure Returnning spring, and check ring and closure drum do not use welding etc. to fix, determined one shoot out the zero hour after, can change easily and shoot out the zero hour.
In addition, according to the 2nd feature of the present invention, owing to form check ring with engagement pin and bar pushing pin by the synthetic resin material, so can reduce the manufacture cost of check ring with above-mentioned pin.
Description of drawings
Fig. 1 comprises the side view of representing vaporizer acceleration device one embodiment's sectional view of the present invention;
Fig. 2 is the longitudinal section along the key component of Figure 1A-A line;
Fig. 3 is the stereogram of employed check ring among Fig. 2;
Fig. 4 is the side view that comprises the existing vaporizer acceleration device sectional view of expression.
Symbol description
5 throttle plate pins
13 connecting rods
13a connecting rod one end
The 13b connecting rod the other end
30 closures drum
30a, 30b, 30c sell card complex hole
The side of 30d closure drum
31 check rings
31a tube portion
The 31b bottom
31c throttle plate pin patchhole
The 31d lip part
The 31e engagement pin
31f bar pushing pin
Embodiment
Hereinafter will describe vaporizer acceleration device of the present invention according to Fig. 1 and Fig. 2.In addition, structure same as the prior art is used identical symbol, with the explanation of omitting it.The closure drum has been prepared check ring unlike the prior art.Closure drum is fixed on the end of throttle plate pin 5 by modes such as riveted joints equally with prior art, is that center and radius are that perforation is provided with a plurality of pin card complex hole 30a, 30b, 30c on the circumference of R at the axle center X-X with throttle plate pin 5 of closure drum 30.For convenience's sake, they are called the 1st pin card complex hole 30a, the 2nd pin card complex hole 30b, the 3rd pin card complex hole 30c downwards respectively from the top.
Check ring 31 was arranged in the periphery of throttle plate pin 5 and the helical closure Returnning spring S between week, and had following structure.31a is meant the cup-shaped tube portion at the end, runs through being provided with throttle plate pin 5 among the throttle plate pin patchhole 31c of the bottom 31b of the rotatable tube of the insertion freely 31a of portion.And, be formed with the annular flange portion 31d that extend outside side in the upper end of the 31a of tube portion, so give prominence to formation and run through the pin card complex hole 30a that is arranged on the closure drum 30, the engagement pin 31e that 30b, 30c engage on the side 31d1 of lip part 31d, 31f is sold in the pushing of outstanding formation bar on the 31d2 of the another side of lip part 31d.With the center of above-mentioned engagement pin be arranged on from the center of throttle plate pin patchhole 31c to the identical radius R of pin card complex hole 30a radius R.
And, as described below check ring 31 is assembled towards throttle plate pin 5, closure drum 30.Hereinafter be introduced (Fig. 2 is the key component longitudinal section along Figure 1A-A line) in conjunction with Fig. 2.Throttle plate pin 5 rotates and is arranged on freely in the closure axis hole 1b that runs through on the bearing jut 1a that is arranged at fuselage main body 1, and check ring 31 is arranged between the right flank 30d and bearing jut 1a left side 1a1 that is fixed on the closure drum 30 on throttle plate pin 5 ends.Throttle plate pin 5 rotates and is inserted into freely in the closure patchhole 31c of check ring 31, helical closure Returnning spring S is shunk be arranged on the periphery of the 31a of portion and between the another side of lip part 31d 31d2 and fuselage main body 1.In Fig. 2, right-hand hook portion (not shown) of this closure Returnning spring S hangs on the closure fuselage main body 1, the hook portion of left (not shown) is limited to closure drum 30, and this closure Returnning spring S will put on the throttle plate pin 5 that comprises closure drum 30 along the rotatory force of counter clockwise direction (closing direction of closure 6 just) among Fig. 1.And, when closure Returnning spring S is between the another side 31d2 that is arranged on lip part 31d and the fuselage main body 1 state, closure Returnning spring S contraction is arranged on the spring length direction (being equivalent to throttle plate pin 5 length directions), side 31d1 pushing with the lip part 31d of check ring 31 is fixed on the right flank 30d of closure drum 30 thus, at this moment, the engagement pin 31e of check ring 31 is fastened in the 1st pin card complex hole 30a of closure drum 30.Thereby check ring 31 and closure drum 30 join and rotate synchronously on its sense of rotation by being engaged by pin 31e and the 1st pin card complex hole 30a.In addition, because check ring 31 is done the elasticity pushing by closure Returnning spring S to closure drum 30 all the time, therefore, engagement pin 31e can not deviate from from the 1st pin card complex hole 30a.On the other hand, as mentioned above, engage under the state of setting facing to closure drum 30 at check ring 31, the bar of check ring 31 pushing pin 31f is provided with in the face of the other end 13b of connecting rod 13.
Promptly, under check ring 31 is arranged at state on the left side 1a1 of periphery, closure drum 30 right flank 30d and bearing jut 1a of throttle plate pin 5, check ring 31 is connected on sense of rotation with closure drum 30, and the bar pushing pin 31f that is disposed on the check ring 31 is provided with in the face of the other end 13b of connecting rod 13.
Thereby, when the anxious acceleration of motor moves, supply acceleration fuel according to following process.For example closure 6 is when the idling aperture, with the other end 13b butt setting of bar pushing pin 31f and connecting rod 13.Under this idling aperture state, when implementing closure drum 30 by the operator and open wide operation fast, closure drum 30 rotates along clockwise direction among Fig. 1, the rotation of closure drum 30 is transmitted to check ring 31 by pin card complex hole 30a, engagement pin 30e, and check ring 31 rotates synchronously along clockwise direction with closure drum 30.And when above-mentioned check ring 31 rotated along clockwise direction, bar pushing pin 31f was moved upward the other end 13b of connecting rod 13, and connecting rod 13 is swung along the counter clockwise direction among Fig. 1.Like this, when connecting rod 13 was swung in the counterclockwise direction, the upper end 11a of an end 13a pushing piston 11 of connecting rod 13 made piston 11 overcome the elastic force of pump spring 12 and mobile downwards.Move by piston 11 downward directions, the pump chamber volume of quickening in the pump chamber 8 is reduced, and make and be stored in the fuel pressure fast rise of quickening in the pump chamber 8, fuel after this boosts shoots out path 10 by acceleration fuel and sprays in air-breathing circulation passage 2, and the motor that can carry out well thus being caused by closure 6 quick opening wide quickens to move.On the other hand, because when the closing direction from closure 6 opening-wide states towards the idling aperture moves, bar pushing pin 31f rotates along the other end 13b departure direction from connecting rod 13 and moves, and therefore, can not produce mechanicalness pushing force to connecting rod 13 from bar pushing pin 31f.
As mentioned above when doing suddenly to quicken operation from closure 6 idling apertures, sprayed and supplied acceleration fuel, here to describing as the injection supply situation (acceleration fuel is shootd out to postpone the zero hour) that acceleration fuel shoots out the zero hour to close the idle running aperture, the wherein said idle running opening ratio idling aperture of closing is unlimited a little.At this moment, engagement pin 31e engaging is arranged among the 3rd pin card complex hole 30c of closure drum 30.Therefore, when closure 6 idling apertures, between the other end 13b of bar pushing pin 31f and connecting rod 13, form gap L.Described gap is represented with a dot and dash line in Fig. 1.According to the above, closure 6 open wide be equivalent to above-mentioned gap L after, the other end 13b butt of bar pushing pin 31f and connecting rod 13, unlimited by closure 6 thereafter, make connecting rod 13 swings and shoot out acceleration fuel, can will speed up shooing out of fuel thus and constantly stagger.
As mentioned above, according to adopting vaporizer acceleration device of the present invention, check ring 31 is rotated with respect to throttle plate pin 5, among a plurality of pin card complex hole 30a by selecting closure drum 30,30b, the 30c one engages with the engagement pin 31e of check ring 31, shoots out the zero hour thereby can freely set acceleration fuel.And it is to be realized by closure drum 30 with pin card complex hole 30a, 30b, 30c and check ring 31, so when to shooing out when carrying out any change the zero hour, need not to change the above-mentioned closure drum and the check ring that set.Also have, set shoot out the zero hour after and will be to shooing out when changing the zero hour, make check ring 31 overcome the elastic force of closure Returnning spring S length direction and leave from closure drum 30 right flank 30d, and engagement pin 31e is deviate from from the pin card complex hole, check ring 31 is rotated, engagement pin 31e is engaged with other pin card complex hole, thereby can very simply and in short time change.Check ring 31 and 30 splits of closure drum are formed can realize above-mentioned change, check ring 31 carries out flexible pushing by closure Returnning spring S and engages.
Also have, shoot out formation check ring 31 with the synthetic resin material, at this moment, when making engagement pin 31e, when bar pushing pin 31f forms, can reducing the manufacture cost of check ring 31 with these pins.
In addition, also cylinder can be arranged on the periphery of bar pushing pin 31f,, make the other end 13b butt configuration of bar pushing pin 31f and connecting rod 13 by this cylinder.Described cylinder is not shown.In addition, also can use the barrier film replacement to make the piston 11 of the pump chamber volume increase and decrease of acceleration pump chamber 8, at this moment, make from the bar portion upper end that barrier film extends upward and dock setting with an end 13a of connecting rod 13.
Claims (2)
1. vaporizer acceleration device has: the closure drum, it is fixed on the end of the rotatable throttle plate pin that is supported on the fuselage main body freely, and by the closure Returnning spring to the closed throttle direction application of force;
Piston, it increases and decreases with the pump chamber volume that acceleration fuel shoots out the acceleration pump chamber of opening having acceleration fuel suction passage; And connecting rod, it is swung freely supporting, an end dock with piston, the other end facing to stand be located at closure on bulging pin and be provided with; Wherein,
It is characterized in that: on the closure drum (30) that is fixedly set on the throttle plate pin end, be to run through on the circumferencial direction at center to be provided with a plurality of pin card complex holes (30a, 30b, 30c) at axle center X-X with throttle plate pin (5), on the other hand, the check ring (31) that is arranged on throttle plate pin (5) periphery has: form the cup-shaped tube portion (31a) at the end, with connecting be arranged at throttle plate pin patchhole (31c) on the bottom (31b) of this one (31a), outside side extension from the upper end of tube portion annular flange portion (31d),
From the outstanding engagement pin (31d) of the side 31d1 of this lip part (31d),
And from the another side (31d2) of this lip part (31d) outstanding bar pushing pin (31e),
Throttle plate pin (5) rotation insertion freely is arranged in the throttle plate pin patchhole (31c) of above-mentioned check ring, and helical closure Returnning spring (S) contraction is arranged on the periphery of a portion (31a); The lip part (31d) of check ring (31) is arranged on the side (30d) of closure drum (30) by above-mentioned closure Returnning spring pushing, and engagement pin (31e) engaging is arranged in the pin card complex hole of closure drum (30), bar pushing pin (31f) is provided with in the face of the other end of connecting rod.
2. vaporizer acceleration device according to claim 1 is characterized in that: form above-mentioned check ring by the synthetic resin material, and make engagement pin (31e) and bar pushing pin (31f) form one.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004254542 | 2004-09-01 | ||
| JP2004254542A JP4074944B2 (en) | 2004-09-01 | 2004-09-01 | Vaporizer accelerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1743655A true CN1743655A (en) | 2006-03-08 |
| CN100520038C CN100520038C (en) | 2009-07-29 |
Family
ID=36139151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100936968A Expired - Fee Related CN100520038C (en) | 2004-09-01 | 2005-09-01 | Vaporizer acceleration device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4074944B2 (en) |
| CN (1) | CN100520038C (en) |
| TW (1) | TW200615448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392759A (en) * | 2011-12-05 | 2012-03-28 | 成都恒高机械电子有限公司 | Carburetor |
-
2004
- 2004-09-01 JP JP2004254542A patent/JP4074944B2/en not_active Expired - Fee Related
-
2005
- 2005-08-31 TW TW094129811A patent/TW200615448A/en not_active IP Right Cessation
- 2005-09-01 CN CNB2005100936968A patent/CN100520038C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392759A (en) * | 2011-12-05 | 2012-03-28 | 成都恒高机械电子有限公司 | Carburetor |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200615448A (en) | 2006-05-16 |
| CN100520038C (en) | 2009-07-29 |
| TWI311173B (en) | 2009-06-21 |
| JP2006070787A (en) | 2006-03-16 |
| JP4074944B2 (en) | 2008-04-16 |
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