CN104405534A - Intelligent carburetor for small general gasoline engine - Google Patents
Intelligent carburetor for small general gasoline engine Download PDFInfo
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- CN104405534A CN104405534A CN201410696090.2A CN201410696090A CN104405534A CN 104405534 A CN104405534 A CN 104405534A CN 201410696090 A CN201410696090 A CN 201410696090A CN 104405534 A CN104405534 A CN 104405534A
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- valve seat
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- 230000001050 lubricating effect Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 238000004134 energy conservation Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 33
- 239000000446 fuel Substances 0.000 description 10
- 101100493711 Caenorhabditis elegans bath-41 gene Proteins 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to a carburetor, in particular to an intelligent carburetor for a small general gasoline engine. The intelligent carburetor for the small general gasoline engine comprises a vertically arranged carburetor body, an electric executing mechanism and a flow rate control valve, the air damper shaft of the carburetor body is firmly provided with an air damper rocker, one end of an input rocker is connected with the air damper rocker through a first connecting bar while the other end is connected with a speed regulating rocker through a second connecting bar, the input rocker is connected with the electric executing mechanism, displacement signals are sent to the electric executing mechanism through the speed regulating rocker, the electric executing mechanism controls the opening degree change of the flow rate control valve according to the displacement signals, and meanwhile, the speed regulating rocker drives the air damper rocker to control the opening degree change of the air damper of the carburetor body. The intelligent carburetor for the small general gasoline engine has beneficial effects of energy conservation, emission reduction, smooth transition, stable working and low manufacturing cost.
Description
Technical field
The present invention relates to a kind of Carburetor, specifically a kind of intelligent Carburetor for small universal gasoline engine.
Background technique
Existing Carburetor due to the intrinsic defect in the accurate control and discharge etc. of combustion process gradually replace by electric jet technology, although engine electric spray technology can better solve the problem, still have 2 deficiencies: one is that to be applied to effects of energy saving and emission reduction on small universal gasoline engine unsatisfactory; Two is that manufacture cost is high.So existing Carburetor is now still a large amount of for small universal gasoline engine.
The main purpose of existing Carburetor is that the actual characteristic of fuel delivery of Carburetor is matched with the characteristic of fuel delivery needed for motor as far as possible.For this reason, in the structure of Carburetor, add correcting device, wherein, difficulty maximum to performance impact is also maximum is correction to main fuel feeding system.
The typical scenario that main fuel feeding system corrects adopts air damping method, namely offer on the fuel feeding circuit of main fuel feeding system and there is certain size, open to atmosphere air jet, on main jet pipe, offer number row foam hole simultaneously, thus obtain the total characteristic that is made up of the elementary carburetor characteristic that some slopes are different, this characteristic is ideal-like characteristic to a certain extent, but still there is deviation with the characteristic of fuel delivery needed for motor.In order to eliminate the excessively rare adverse effect of mixed gas, having to make Carburetor increase fuel feeding by the way of enriching, thus making most of operating mode by unnecessarily enriching; Mixed gas is also normal partially rare at the handover region of main oil system and idle system and economizer system.In order to ensure that transition is round and smooth, stable working, when attempting to do local enriching to partially rare region, even mixed gas that other operating mode concentration is suitable also can be made by unnecessarily enriching, while causing exhaust emissions amount large, fuel oil waste is serious.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of energy-saving and emission-reduction, excess smoothness, stable working and the intelligent Carburetor for small universal gasoline engine of low cost of manufacture.
The technological scheme that the present invention solves the problems of the technologies described above is as follows: a kind of intelligent Carburetor for small universal gasoline engine, comprise the vertical carburetor body arranged, electric actuator and flow control valve, described electric actuator comprises uncovered shell, controller and actuating motor, the outer side wall of described carburetor body is fixedly installed load-bearing gusset, the open-mouth of described uncovered shell is fixedly connected with described load-bearing gusset, top in described uncovered shell is vertically fixedly installed the first rotational potentiometer, the rotating shaft of described first rotational potentiometer is towards straight up and stretch out described uncovered cover top portion, in the rotating shaft of described first rotational potentiometer, circumference is socketed and is fixed with input rocking arm, the throttle plate pin of described carburetor body is fixedly installed closure rocking arm, one end of described input rocking arm connects described closure rocking arm by first connecting rod, the other end is connected with speed governing rocking arm by second connecting rod,
Described controller is vertically fixedly installed on the sidewall away from described carburetor body in described uncovered shell, described actuating motor is vertically fixedly installed in described uncovered shell, the rotating shaft of described actuating motor is towards straight down, this rotating shaft is socketed and is fixed with the first gear, bottom in described uncovered shell is vertically fixedly installed the first stationary axle near the position of described actuating motor, described first stationary axle is socketed with at least one pair and described first stationary axle to rotate the first duplicate gear coordinated, the gearwheel of described first duplicate gear and described first gears meshing, bottom in described uncovered shell is near described first stationary axle, position away from described actuating motor is vertically fixedly installed the second stationary axle, on described second stationary axle, corresponding described first duplicate gear is socketed with the second duplicate gear, the gearwheel of described second duplicate gear engages with the small gear of described first duplicate gear, near described first stationary axle in described uncovered shell, position away from described second stationary axle is vertically provided with output shaft through described uncovered outer casing bottom, described output shaft rotates with described uncovered shell and coordinates, described output shaft is socketed and is fixed with the second gear, described second gear engages with the small gear of described first duplicate gear near described uncovered outer casing bottom, in described uncovered shell, the top of described output shaft is laterally fixedly installed the first mounting plate, the upper surface of described first mounting plate is vertically fixedly installed the second rotational potentiometer, the rotating shaft of described second rotational positioner is towards also passing described first mounting plate straight down, the upper end of described output shaft is fixedly installed wedge-shaped blocks, the tip of described wedge-shaped blocks is inserted in the straight groove of the shaft head of described second rotational potentiometer, position near described output shaft upper end on described output shaft is socketed and is fixed with locating bump, described uncovered shell internal fixtion is provided with zero position switch, the high spot of described locating bump touches described zero position switch, the lower end of described output shaft is fixedly installed output rocking arm, described first rotational potentiometer, actuating motor, second rotational potentiometer and zero position switch are all connected described controller by wire,
Described flow control valve comprises spool, valve seat and lining, described spool is T-shaped multidiameter shaft, described valve seat is T-shaped ladder axle sleeve, described spool inserts described valve seat and seals, the height at described spool top is lower than the height at described valve seat top, described valve seat is stretched out in its lower end, described lining is positioned at described valve seat and is socketed on the shaft shoulder of described spool, described lining rotates with described spool and coordinates, described valve seat is vertically arranged in the lubricating cup of described carburetor body, its shaft shoulder is socketed on the working connection outer wall of described carburetor body, the working connection outer wall of described valve seat and described carburetor body is made screw-thread fit and seals, the lower end of described valve seat is passed the bottom of the lubricating cup of described carburetor body and is fixed on described carburetor body by sealing nut, the top axle of described spool is to offering short-bore, the upper end of described short-bore is communicated with the working connection of described carburetor body, on the shaft shoulder sidewall of described spool, radial direction offers the first oil through, described first oil through is communicated with described short-bore, on the shaft shoulder sidewall of described spool, the position circumference of corresponding described first oil through such as to offer at the dark curve bath, one end of described curve bath is communicated with described first oil through, on the sidewall of described lining, the position radial direction of corresponding described first oil through offers the second oil through, described second oil through is communicated with described first oil through, on the shaft shoulder sidewall of described valve seat, the position of corresponding described second oil through offers the 3rd oil through, the two ends of described 3rd oil through are communicated with the lubricating cup inside of described second oil through and carburetor body respectively, on the shaft shoulder sidewall of described valve seat, the top of described spool offers the idling jet of the working connection being communicated with described carburetor body, the lower end of described spool is fixedly installed modulating valve rocking arm, described output rocking arm is connected with described modulating valve rocking arm by third connecting rod.
The invention has the beneficial effects as follows: when the rotating speed of motor changes, the centrifugal governor of engine interior can make speed governing rocking arm produce corresponding swing, the swing displacement of speed governing rocking arm passes to input rocking arm through second connecting rod, input rocking arm stirs the first rotational potentiometer, first rotational potentiometer converts the angular displacement signal of input rocking arm to electrical signal, this electrical signal passes to controller through wire, be used for controlling actuating motor after via controller resolves and produce corresponding rotating speed, the rotation of actuating motor exports rocking arm through the first duplicate gear and the second duplicate gear deceleration rear driving and swings, the power exporting rocking arm generation passes to modulating valve rocking arm with the aperture of control flow check control valve via third connecting rod, in addition, displacement signal from speed governing rocking arm passes motion to closure rocking arm through input rocking arm and first connecting rod, control the aperture of the closure of carburetor body, thus realize the closure of carburetor body and mating of flow control valve position, reach the object accurately controlling air fuel ratio, realize energy-saving and emission-reduction, from sequential, the rotation of spool is always ahead of the rotation of the closure of carburetor body, this ensures that there the closure of the also carburetor body when loading when opening large, flow control valve leaves greatly in advance, rich is formed in carburetor body, make engine operating condition transitions smooth, stable working, the component that the present invention adopts is general part, low cost of manufacture, the present invention touches the maximum opening of zero position switch recorded stream control valve by positioning block and corrects, and control accuracy is high.
Further, consider and guarantee described actuating motor, first stationary axle, the reliability that second stationary axle and the first mounting plate are fixing and realize described output shaft and rotate with described uncovered shell and coordinate, position in described uncovered shell bottom it is laterally provided with second mounting plate of " L " shape, the vertical plate face of described second mounting plate by rivet on described load-bearing gusset, in described uncovered shell, the top of described second mounting plate is laterally provided with the 3rd mounting plate, on the corner of the transverse plate face upper surface of described second mounting plate, riveted joint has the first contour column respectively, the top of described 3rd mounting plate and described first column is riveted together, described actuating motor is fixedly connected with described 3rd mounting plate by screw, and the two ends of described first stationary axle and the second stationary axle are riveted on described second mounting plate and the 3rd mounting plate respectively, the upper end of described output shaft is through described 3rd mounting plate, and to be rotated with described 3rd mounting plate by the first sliding bearing and coordinate, described first sliding bearing passes described 3rd mounting plate and is fixed on described 3rd mounting plate, the lower end of described output shaft is through described second mounting plate, and to be rotated with described second mounting plate by the second sliding bearing and coordinate, described second sliding bearing is through described second mounting plate and be fixed on described second mounting plate, the upper surface riveted joint of described 3rd mounting plate has two contour the second columns, and the top of described first mounting plate and described second column is riveted together, and described zero position switch is by the upper surface of rivet at described 3rd mounting plate.
Further, consider the reliability guaranteeing that described first rotational potentiometer and described load-bearing gusset are fixed, described first rotational potentiometer is fixedly connected with described load-bearing gusset by the support of " L " shape.
Further, consider that the heat reducing motor is delivered to described electric actuator through described carburetor body, be fixedly installed heat insulating mattress between the vertical panel of described support and the second mounting plate and described load-bearing gusset, thus the heat reduced from motor is on the impact of described electric actuator.
Further, consider the reliability that the control accuracy improving described control is fixed with the described controller of raising and described uncovered shell, described controller is MCU controller, and is fixed by screws on the inwall of described uncovered shell.
Further, consider the sealing realizing described valve seat and described spool, on the axle journal outer wall of described spool, circumference offers two the first circular grooves, in described first circular groove, be placed with the first seal ring, and described first seal ring is socketed on the axle journal of described spool.
Further, consider the sealing of the working connection outer wall realizing described valve seat and described carburetor body, on the shaft shoulder upper end inwall of described valve seat, circumference offers second circular groove, in described circular groove, be placed with the second seal ring, described second seal ring is socketed on the working connection outer wall of described carburetor body.
Further, consider the reliability promoting the fluid resistance that described curve bath provides, the radian of described curve bath on the shaft shoulder outer wall of described spool is 180 °.
Further, consider and avoid the described modulating valve rocking arm amplitude of oscillation to transfinite, the lower end of described valve seat is milled with half and lacks, and on described spool, corresponding described half position lacked offers spacing screw, and corresponding described spacing screw is provided with position limit pin.
Further, consider the reliability that the described modulating valve rocking arm of lifting and described spool are fixed, the lower end surface of described spool offers positioning screw hole, and be provided with positioning screwn through described modulating valve rocking arm, described positioning screwn is screwed into described positioning screw hole.
Accompanying drawing explanation
Fig. 1 is elevational cross-sectional view of the present invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is that enlarged view is looked on the right side in A portion in Fig. 1;
Fig. 4 be Fig. 3 overlook partial sectional view;
Fig. 5 is the partial structurtes schematic diagram of electric actuator of the present invention;
Fig. 6 is that partial sectional view is looked on the right side of Fig. 5;
In accompanying drawing, the list of parts representated by each label is as follows:
1, speed governing rocking arm, 2, second connecting rod, 3, throttle plate pin, 4, first connecting rod, 5, input rocking arm, 6, heat insulating mattress, 7, support, 8, first rotational potentiometer, 9, controller, 10, actuating motor, 11, uncovered shell, 12, second rotational potentiometer, 13, second column, 14, 3rd mounting plate, 15, first column, 16, second mounting plate, 17, output shaft, 18, export rocking arm, 19, third connecting rod, 20, positioning screwn, 21, modulating valve rocking arm, 22, spacing screw, 23, sealing nut, 24, spool, 25, lining, 26, valve seat, 27, lubricating cup, 28, working connection, 29, load-bearing gusset, 30, closure, 31, closure rocking arm, 32, carburetor body, 33, second seal ring, 34, idling jet, 35, 3rd oil through, 36, second oil through, 37, first oil through, 38, first seal ring, 39, position limit pin, 40, positioning screw hole, 41, curve bath, 42, short-bore, 43, first mounting plate, 44, second gear, 45, first stationary axle, 46, first duplicate gear, 47, first gear, 48, locating bump, 49, zero position switch, 50, second duplicate gear, 51, second stationary axle, 52, second sliding bearing, 53, first sliding bearing.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
A kind of intelligent Carburetor for small universal gasoline engine, as depicted in figs. 1 and 2, comprise the vertical carburetor body 32 arranged, electric actuator and flow control valve, electric actuator comprises uncovered shell 11, controller 9 and actuating motor 10, the outer side wall of carburetor body 32 is fixedly installed load-bearing gusset 29, the open-mouth of uncovered shell 11 is fixedly connected with load-bearing gusset 29, top in uncovered shell 11 is vertically fixedly installed the first rotational potentiometer 8, the rotating shaft of the first rotational potentiometer 8 is towards straight up and stretch out uncovered shell 11 top, in the rotating shaft of the first rotational potentiometer 8, circumference is socketed and is fixed with input Rocker arm 5, the throttle plate pin 3 of carburetor body 32 is fixedly installed closure rocking arm 31, one end of input Rocker arm 5 is by first connecting rod 4 connecting joint valve rocker 31, the other end is connected with speed governing rocking arm 1 by second connecting rod 2,
As Fig. 1, shown in Fig. 5 and Fig. 6, controller 9 is vertically fixedly installed on the sidewall away from carburetor body 32 in uncovered shell 11, actuating motor 10 is vertically fixedly installed in uncovered shell 11, the rotating shaft of actuating motor 10 is towards straight down, this rotating shaft is socketed and is fixed with the first gear 47, bottom in uncovered shell 11 is vertically fixedly installed the first stationary axle 45 near the position of actuating motor 10, first stationary axle 45 is socketed with three secondary the first duplicate gears 46 coordinated that rotate with the first stationary axle 45, the gearwheel of the first duplicate gear 46 engages with the first gear 47, bottom in uncovered shell 11 is near the first stationary axle 45, position away from actuating motor 10 is vertically fixedly installed the second stationary axle 51, on second stationary axle 51, corresponding first duplicate gear 46 is socketed with the second duplicate gear 50, the gearwheel of the second duplicate gear 50 engages with the small gear of the first duplicate gear 46, near the first stationary axle 45 in uncovered shell 11, position away from the second stationary axle 51 is vertically provided with output shaft 17 through bottom uncovered shell 11, output shaft 17 rotates with uncovered shell 11 and coordinates, output shaft 17 is socketed and is fixed with the second gear 44, second gear 44 engages with the small gear of the first duplicate gear 46 bottom uncovered shell 11, in uncovered shell 11, the top of output shaft 17 is laterally fixedly installed the first mounting plate 43, the upper surface of the first mounting plate 43 is vertically fixedly installed the second rotational potentiometer 12, the rotating shaft of the second rotational positioner 12 is towards also passing the first mounting plate 43 straight down, the upper end of output shaft 17 is fixedly installed wedge-shaped blocks, the tip of wedge-shaped blocks is inserted in the straight groove of the shaft head of the second rotational potentiometer 12, position near output shaft 17 upper end on output shaft 17 is socketed and is fixed with locating bump 48, uncovered shell 11 internal fixtion is provided with zero position switch 49, zero position switch 49 is sensitive switch, the high spot of locating bump 48 touches zero position switch 49, the lower end of output shaft 17 is fixedly installed and exports rocking arm 18, first rotational potentiometer 8, actuating motor 10, second rotational potentiometer 12 and zero position switch 49 are all by wire connection controller 9,
As Fig. 1, shown in Fig. 2 and Fig. 3, flow control valve comprises spool 24, valve seat 26 and lining 25, spool 24 is T-shaped multidiameter shaft, valve seat 26 is T-shaped ladder axle sleeve, spool 24 inserts valve seat 26 and seals, the height at spool 24 top is lower than the height at valve seat 26 top, valve seat 26 is stretched out in its lower end, lining 25 is positioned at valve seat 26 and is socketed on the shaft shoulder of spool 24, lining 25 rotates with spool 24 and coordinates, valve seat 26 is vertically arranged in the lubricating cup 27 of carburetor body 32, its shaft shoulder is socketed on working connection 28 outer wall of carburetor body 32, valve seat 26 is made screw-thread fit with working connection 28 outer wall of carburetor body 32 and seals, the lower end of valve seat 26 is passed the bottom of the lubricating cup 27 of carburetor body 32 and is fixed on carburetor body 32 by sealing nut 23, the top axle of spool 24 is to offering short-bore 42, the upper end of short-bore 42 is communicated with the working connection 28 of carburetor body 32, on the shaft shoulder sidewall of spool 24, radial direction offers the first oil through 37, first oil through 37 is communicated with short-bore 42, on the shaft shoulder sidewall of spool 24, the position circumference of corresponding first oil through 37 such as to offer at the dark curve bath 41, one end of curve bath 41 is communicated with the first oil through 37, on the sidewall of lining 25, the position radial direction of corresponding first oil through 37 offers the second oil through 36, second oil through 36 is communicated with the first oil through 37, on the shaft shoulder sidewall of valve seat 26, the position of corresponding second oil through 36 offers the 3rd oil through 35, the two ends of the 3rd oil through 35 are communicated with lubricating cup 27 inside of the second oil through 36 and carburetor body 32 respectively, on the shaft shoulder sidewall of valve seat 26, the top of spool 24 offers the idling jet 34 of the working connection 28 being communicated with carburetor body 32, the lower end of spool 24 is fixedly installed modulating valve rocking arm 21, export rocking arm 18 to be connected with modulating valve rocking arm 21 by third connecting rod 19.
In 11. the present embodiment, position in uncovered shell 11 bottom it is laterally provided with second mounting plate 16 of " L " shape, the vertical plate face of the second mounting plate 16 by rivet on load-bearing gusset 29, laterally the 3rd mounting plate 14 is provided with in uncovered shell 11, above the second mounting plate 16, on the corner of the transverse plate face upper surface of the second mounting plate 16, riveted joint has the top of the first contour column the 15, three mounting plate 14 and the first column 15 to be riveted together respectively; Actuating motor 10 is fixedly connected with the 3rd mounting plate 14 by screw, and the two ends of the first stationary axle 45 and the second stationary axle 51 are riveted on the second mounting plate 16 and the 3rd mounting plate 14 respectively; The upper end of output shaft 17 is through the 3rd mounting plate 14, and to be rotated with the 3rd mounting plate 14 by the first sliding bearing 53 and coordinate, first sliding bearing 53 passes the 3rd mounting plate 14 and is fixed on the 3rd mounting plate 14, the lower end of output shaft 17 is through the second mounting plate 16, and to be rotated with the second mounting plate 16 by the second sliding bearing 52 and coordinate, the second sliding bearing 52 is through the second mounting plate 16 and be fixed on the second mounting plate 16; The upper surface riveted joint of the 3rd mounting plate 14 has the top of two contour the second column 13, first mounting plates 43 and the second column 13 to be riveted together, and zero position switch 49 is by the upper surface of rivet at the 3rd mounting plate 14; First rotational potentiometer 8 is fixedly connected with load-bearing gusset 29 by the support 7 of " L " shape.Heat insulating mattress 6 is fixedly installed between the vertical panel of support 7 and the second mounting plate 16 and load-bearing gusset 29; Controller 9 is MCU controller, and is fixed by screws on the inwall of uncovered shell 11; On the axle journal outer wall of spool 24, circumference offers two the first circular grooves, is placed with the first seal ring 38, first seal ring 38 and is socketed on the axle journal of spool 24 in the first circular groove; On the shaft shoulder upper end inwall of valve seat 26, circumference offers second circular groove, is placed with the second seal ring 33, second seal ring 33 and is socketed on working connection 28 outer wall of carburetor body 32 in circular groove; The radian of curve bath 41 on the shaft shoulder outer wall of spool 24 is 180 °; The lower end of valve seat 26 is milled with half and lacks, and on spool 24, corresponding half position lacked offers spacing screw 22, and corresponding spacing screw 22 is provided with position limit pin 39; The lower end surface of spool 24 offers positioning screw hole 40, is provided with positioning screwn 20 through modulating valve rocking arm 21, and positioning screwn 20 is screwed into positioning screw hole 40.
Working principle:
When motor loads, the centrifugal governor of engine interior makes speed governing rocking arm 1 clockwise oscillation, the swing displacement of speed governing rocking arm 1 passes to input Rocker arm 5 through second connecting rod 2, input Rocker arm 5 stirs the rotating shaft of the first rotational potentiometer 8 clockwise, first rotational potentiometer 8 converts the angular displacement signal of input Rocker arm 5 to electrical signal, this electrical signal passes to controller 9 through wire, be used for controlling actuating motor 10 after via controller 9 resolves and produce corresponding rotating speed counterclockwise, the rotation of actuating motor 10 exports rocking arm 18 counter-clockwise swing through the rear driving of slowing down of the first duplicate gear 46 and the second duplicate gear 50, the power exporting rocking arm 18 generation passes to modulating valve rocking arm 21 via third connecting rod 19 and promotes modulating valve rocking arm 21 counter-clockwise swing, control spool 24 to rotate counterclockwise, the first oil through 37 is made to trend towards aliging with the 3rd oil through 35, i.e. flow control valve opening increases, in addition, clockwise oscillation power from speed governing rocking arm 1 passes motion to closure rocking arm 31 through input Rocker arm 5 and first connecting rod 4, throttle valve rocking arm 31 counter-clockwise swing, and then drive the throttle plate pin 3 of carburetor body 32 to rotate counterclockwise, the closure 30 controlling carburetor body 32 is opened greatly, thus realize carburetor body 32 and strengthen fuel delivery when motor loads.
During motor off-load, contrary when working method of the present invention then loads with motor.
During engine idle, speed governing rocking arm 1 is pushed position minimum counterclockwise by the centrifugal governor of engine interior, now flow control valve closes to minimum by electric actuator, closure 30 aperture of carburetor body 32 is also in minimum position, the distance of the first oil through 37 and the 3rd oil through 35 farthest, no longer pass through the 3rd oil through 35 to engine oil, by means of only idling jet 34 to engine oil.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the intelligent Carburetor for small universal gasoline engine, it is characterized in that: comprise the vertical carburetor body (32) arranged, electric actuator and flow control valve, described electric actuator comprises uncovered shell (11), controller (9) and actuating motor (10), the outer side wall of described carburetor body (32) is fixedly installed load-bearing gusset (29), the open-mouth of described uncovered shell (11) is fixedly connected with described load-bearing gusset (29), top in described uncovered shell (11) is vertically fixedly installed the first rotational potentiometer (8), the rotating shaft of described first rotational potentiometer (8) is towards straight up and stretch out described uncovered shell (11) top, in the rotating shaft of described first rotational potentiometer (8), circumference is socketed and is fixed with input rocking arm (5), the throttle plate pin (3) of described carburetor body (32) is fixedly installed closure rocking arm (31), one end of described input rocking arm (5) connects described closure rocking arm (31) by first connecting rod (4), the other end is connected with speed governing rocking arm (1) by second connecting rod (2),
Described controller (9) is vertically fixedly installed on the sidewall away from described carburetor body (32) in described uncovered shell (11), described actuating motor (10) is vertically fixedly installed in described uncovered shell (11), the rotating shaft of described actuating motor (10) is towards straight down, this rotating shaft is socketed and is fixed with the first gear (47), bottom in described uncovered shell (11) is vertically fixedly installed the first stationary axle (45) near the position of described actuating motor (10), described first stationary axle (45) is socketed with at least one pair and described first stationary axle (45) to rotate the first duplicate gear (46) coordinated, the gearwheel of described first duplicate gear (46) engages with described first gear (47), bottom in described uncovered shell (11) is near described first stationary axle (45), position away from described actuating motor (10) is vertically fixedly installed the second stationary axle (51), upper corresponding described first duplicate gear (46) of described second stationary axle (51) is socketed with the second duplicate gear (50), the gearwheel of described second duplicate gear (50) engages with the small gear of described first duplicate gear (46), near described first stationary axle (45) in described uncovered shell (11), position away from described second stationary axle (51) is vertically provided with output shaft (17) through described uncovered shell (11) bottom, described output shaft (17) rotates with described uncovered shell (11) and coordinates, described output shaft (17) is upper to be socketed and to be fixed with the second gear (44), described second gear (44) is engaged with the small gear of described first duplicate gear (46) near described uncovered shell (11) bottom, in described uncovered shell (11), the top of described output shaft (17) is laterally fixedly installed the first mounting plate (43), the upper surface of described first mounting plate (43) is vertically fixedly installed the second rotational potentiometer (12), the rotating shaft of described second rotational positioner (12) is towards also passing described first mounting plate (43) straight down, the upper end of described output shaft (17) is fixedly installed wedge-shaped blocks, the tip of described wedge-shaped blocks is inserted in the straight groove of the shaft head of described second rotational potentiometer (12), the upper position near described output shaft (17) upper end of described output shaft (17) is socketed and is fixed with locating bump (48), described uncovered shell (11) internal fixtion is provided with zero position switch (49), the high spot of described locating bump (48) touches described zero position switch (49), the lower end of described output shaft (17) is fixedly installed and exports rocking arm (18), described first rotational potentiometer (8), actuating motor (10), second rotational potentiometer (12) is all connected described controller (9) by wire with zero position switch (49),
Described flow control valve comprises spool (24), valve seat (26) and lining (25), described spool (24) is T-shaped multidiameter shaft, described valve seat (26) is T-shaped ladder axle sleeve, described spool (24) inserts described valve seat (26) and seals, the height at described spool (24) top is lower than the height at described valve seat (26) top, described valve seat (26) is stretched out in its lower end, described lining (25) is positioned at described valve seat (26) and is socketed on the shaft shoulder of described spool (24), described lining (25) rotates with described spool (24) and coordinates, described valve seat (26) is vertically arranged in the lubricating cup (27) of described carburetor body (32), its shaft shoulder is socketed on working connection (28) outer wall of described carburetor body (32), described valve seat (26) is made screw-thread fit with working connection (28) outer wall of described carburetor body (32) and seals, the lower end of described valve seat (26) is passed the bottom of the lubricating cup (27) of described carburetor body (32) and is fixed on described carburetor body (32) by sealing nut (23), the top axle of described spool (24) is to offering short-bore (42), the upper end of described short-bore (42) is communicated with the working connection (28) of described carburetor body (32), on the shaft shoulder sidewall of described spool (24), radial direction offers the first oil through (37), described first oil through (37) is communicated with described short-bore (42), on the shaft shoulder sidewall of described spool (24), the position circumference of corresponding described first oil through (37) such as to offer at the dark curve bath (41), one end of described curve bath (41) is communicated with described first oil through (37), on the sidewall of described lining (25), the position radial direction of corresponding described first oil through (37) offers the second oil through (36), described second oil through (36) is communicated with described first oil through (37), on the shaft shoulder sidewall of described valve seat (26), the position of corresponding described second oil through (36) offers the 3rd oil through (35), the two ends of described 3rd oil through (35) are communicated with lubricating cup (27) inside of described second oil through (36) and carburetor body (32) respectively, on the shaft shoulder sidewall of described valve seat (26), the top of described spool (24) offers the idling jet (34) of the working connection (28) being communicated with described carburetor body (32), the lower end of described spool (24) is fixedly installed modulating valve rocking arm (21), described output rocking arm (18) is connected with described modulating valve rocking arm (21) by third connecting rod (19).
2. a kind of intelligent Carburetor for small universal gasoline engine according to claim 1, it is characterized in that: the position in described uncovered shell (11) bottom it is laterally provided with second mounting plate (16) of " L " shape, the vertical plate face of described second mounting plate (16) by rivet on described load-bearing gusset (29), in described uncovered shell (11), the top of described second mounting plate (16) is laterally provided with the 3rd mounting plate (14), on the corner of the transverse plate face upper surface of described second mounting plate (16), riveted joint has contour the first column (15) respectively, described 3rd mounting plate (14) is riveted together with the top of described first column (15), described actuating motor (10) is fixedly connected with described 3rd mounting plate (14) by screw, and the two ends of described first stationary axle (45) and the second stationary axle (51) are riveted on described second mounting plate (16) and the 3rd mounting plate (14) respectively, the upper end of described output shaft (17) is through described 3rd mounting plate (14), and rotate with described 3rd mounting plate (14) coordinate by the first sliding bearing (53), described first sliding bearing (53) is through described 3rd mounting plate (14) and be fixed on described 3rd mounting plate (14), the lower end of described output shaft (17) is through described second mounting plate (16), and rotate with described second mounting plate (16) coordinate by the second sliding bearing (52), described second sliding bearing (52) is through described second mounting plate (16) and be fixed on described second mounting plate (16), the upper surface riveted joint of described 3rd mounting plate (14) has two contour the second columns (13), described first mounting plate (43) is riveted together with the top of described second column (13), and described zero position switch (49) is by the upper surface of rivet at described 3rd mounting plate (14).
3. a kind of intelligent Carburetor for small universal gasoline engine according to claim 2, is characterized in that: described first rotational potentiometer (8) is fixedly connected with described load-bearing gusset (29) by the support (7) of " L " shape.
4. a kind of intelligent Carburetor for small universal gasoline engine according to claim 3, is characterized in that: be fixedly installed heat insulating mattress (6) between the vertical panel of described support (7) and the second mounting plate (16) and described load-bearing gusset (29).
5. a kind of intelligent Carburetor for small universal gasoline engine according to claim 1, is characterized in that: described controller (9) is MCU controller, and is fixed by screws on the inwall of described uncovered shell (11).
6. a kind of intelligent Carburetor for small universal gasoline engine according to claim 1, it is characterized in that: on the axle journal outer wall of described spool (24), circumference offers two the first circular grooves, in described first circular groove, be placed with the first seal ring (38), described first seal ring (38) is socketed on the axle journal of described spool (24).
7. a kind of intelligent Carburetor for small universal gasoline engine according to claim 1, it is characterized in that: on the shaft shoulder upper end inwall of described valve seat (26), circumference offers second circular groove, in described circular groove, be placed with the second seal ring (33), described second seal ring (33) is socketed on working connection (28) outer wall of described carburetor body (32).
8. a kind of intelligent Carburetor for small universal gasoline engine according to any one of claim 1 to 7, is characterized in that: the radian of described curve bath (41) on the shaft shoulder outer wall of described spool (24) is 180 °.
9. a kind of intelligent Carburetor for small universal gasoline engine according to any one of claim 1 to 7, it is characterized in that: the lower end of described valve seat (26) is milled with half and lacks, offer spacing screw (22) in upper corresponding described half position lacked of described spool (24), corresponding described spacing screw (22) is provided with position limit pin (39).
10. a kind of intelligent Carburetor for small universal gasoline engine according to any one of claim 1 to 7, it is characterized in that: the lower end surface of described spool (24) offers positioning screw hole (40), be provided with positioning screwn (20) through described modulating valve rocking arm (21), described positioning screwn (20) is screwed into described positioning screw hole (40).
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| CN201410696090.2A CN104405534B (en) | 2014-11-26 | 2014-11-26 | A kind of intelligent carburetor for small universal gasoline engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410696090.2A CN104405534B (en) | 2014-11-26 | 2014-11-26 | A kind of intelligent carburetor for small universal gasoline engine |
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| CN104405534B CN104405534B (en) | 2016-07-06 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104512A (en) * | 1986-06-28 | 1988-01-06 | 卡特彼拉有限公司 | Gas-combustion the ratio regulating system of fluid transmission disconnection linkage |
| CN2591256Y (en) * | 2002-08-12 | 2003-12-10 | 易伟文 | Fuel-saving environment protection apparatus for motorcycle |
| EP1369574A2 (en) * | 2002-06-03 | 2003-12-10 | Walbro Japan, Inc. | Rotary throttle valve carburetor |
| US20060038305A1 (en) * | 2004-08-18 | 2006-02-23 | Honda Motor Co. Ltd. | Carburetor electronic control system |
| CN201826973U (en) * | 2010-01-12 | 2011-05-11 | 浙江瑞星化油器制造有限公司 | Digitally-controlled diaphragm-type carburetor |
| CN204226052U (en) * | 2014-11-26 | 2015-03-25 | 贾彤 | A kind of intelligent Carburetor for small universal gasoline engine |
-
2014
- 2014-11-26 CN CN201410696090.2A patent/CN104405534B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104512A (en) * | 1986-06-28 | 1988-01-06 | 卡特彼拉有限公司 | Gas-combustion the ratio regulating system of fluid transmission disconnection linkage |
| EP1369574A2 (en) * | 2002-06-03 | 2003-12-10 | Walbro Japan, Inc. | Rotary throttle valve carburetor |
| CN2591256Y (en) * | 2002-08-12 | 2003-12-10 | 易伟文 | Fuel-saving environment protection apparatus for motorcycle |
| US20060038305A1 (en) * | 2004-08-18 | 2006-02-23 | Honda Motor Co. Ltd. | Carburetor electronic control system |
| CN201826973U (en) * | 2010-01-12 | 2011-05-11 | 浙江瑞星化油器制造有限公司 | Digitally-controlled diaphragm-type carburetor |
| CN204226052U (en) * | 2014-11-26 | 2015-03-25 | 贾彤 | A kind of intelligent Carburetor for small universal gasoline engine |
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| CN104405534B (en) | 2016-07-06 |
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