CN2222243Y - High-effect hot vortex vapouration carburettor - Google Patents

Abstract

The utility model discloses a thermal turbulence vaporization carburetor, belonging to the energy saving device of a car, and comprising the functional component for metering oil supply, the functional component for metering gas supply, the functional component for thermal turbulence vaporization, the functional component for flow guiding steam mixing and the functional component for the vacuum compensation of the vapor pressure of fuel. The quality enhancement of mixing steam, the enlargement of a charging efficiency and the realization of the optimum supply of air-fuel ratio are organically unified by the combination implementation of the utility model and the control module EEC of an electronic engine, and thus the economic performance, the power performance and the exhaust index of the car are greatly improved.

Description

Efficient hot vortex type surface carburetor

The efficient hot vortex type surface carburetor of the utility model relates to a kind of with respect to common hollow throat type Carburetor can make the quality of mixed steam better, that air fuel ratio is supplied with is more reasonable, volumetric efficiency is bigger petrol engine energy saving device.

At present, the domestic petrol engine that generally uses mostly adopts constant choke carburetor.There are shortcomings such as the mixed steam quality is low, volumetric efficiency is little, the air fuel ratio supply is unreasonable in this Carburetor.And these several respects are to Economy, emission performance and the power character of petrol engine important influence all.Though people had formulated many new technological schemes at these several respects in the last few years, as " rotator type Carburetor "---CN2126317u, " high-efficiency multi-function automobile fuel-economizing device "---CN2106229u etc.But the application of these device for modifying makes carburetor structure more become complicated, and the required precision of cooperation is higher, and this has not only increased the cost of Carburetor, and the maintenance, repair difficulty of Carburetor has also been strengthened.

The purpose of this utility model is in order to overcome the deficiencies in the prior art part, designs a kind ofly to improve the mixed steam quality greatly by hot eddy current; Independently accurately control the fair supply that realizes air fuel ratio respectively by fuel oil and air; Increase volumetric efficiency by increasing the trunnion size; The novel Carburetor that has favorable compatibility with existing big-and-middle-sized automobile.

Efficient hot vortex type surface carburetor provided by the utility model takes following scheme to realize.This device mainly is made of upper body, resistance joint air door observing and controlling assembly, carburetor main housing, vaporization cavity, hot vortex type vaporization component, metered fuel charge assembly, the mixed vapour assembly of water conservancy diversion and vapor tension vacuum compensation assembly.This Carburetor is contained between air-strainer and suction tude.Upper body mainly works to connect filter cleaner and carburetor main body.Wherein, resistance joint air door observing and controlling assembly is made up of resistance joint air door, torque type direct current generator, torsion spring and throttle opening measurement potentiometer.The throttle opening value is provided by the engine control module EEC of electronics, by torque type direct current generator and the collaborative execution of torsion spring, follows control by the reverse feedback of aperture measurement potentiometer introducing and has then improved dynamic control accuracy greatly.The carburetor main housing works to support whole Carburetor.The vaporization cavity is made up of vaporization chamber lid, vaporization chamber housing.Fuel oil and little air form wellatomized dense mixed steam by hot eddy current effect in the chamber.Hot eddy current vaporization component is formed by strengthening vaporization coupling rib, vaporization strengthening rib, eddy current strengthening rib and centrifugal cup, direct current generator, power guide rod and auxiliary vaporization electric heating wire etc.It becomes most of fuel oil the oily almost of vaporization attitude.The metered fuel charge assembly is made up of electromagnetic fuel supply plunger, the fuel feeding pump housing and float chamber.Wherein the independent dried carburetor main body of float chamber is installed, and the float chamber pasta is higher than fuel delivery hole horizontal position more than 10 centimetres, and fuel feeding metering-orifice two ends pressure reduction is stabilized in below 1.3%.The plunger opening time is provided by the EEC module, thereby obtains higher fuel feeding precision.Water conservancy diversion mixes the vapour assembly to be made up of the mixed vapour ring of water conservancy diversion, the mixed vapour ring of secondary water conservancy diversion and a steam supply metering-orifice, and it further is diluted to uniform flammable mixed steam with extremely dense mixed vapour.Vapor tension vacuum compensation assembly is made up of expansion pipe and compensate opening; the degree of vacuum of the air duct of expansion pipe before with vaporization chamber and resistance joint air door is communicated with to get up for part; it has played compensation gasoline than low-steam pressure (less than 66.65KPa); make its smooth fuel feeding effect; also overcome common Carburetor simultaneously and started the bad drawback of fuel-oil atmozation during idling.

From imitate hot vortex type surface carburetor the volumetric efficiency of raising motor, improve the quality of mixed steam and under the EEC module controls, provide the three technology of optimal air-fuel ratio mixed steam and well the connecting property of existing automobile organically to combine all the time, traditional hollow throat type Carburetor volumetric efficiency was low, mixed steam is of poor quality thereby both overcome, air fuel ratio is supplied with shortcomings such as unreasonable, has overcome the cost height of modern fuel injection system, the drawback of poor reliability again.The advantage that make the cost of its existing hollow throat type Carburetor lower, reliability is high has the volumetric efficiency height of fuel injection system, vaporization well to reach the advantage that can improve reasonable air fuel ratio mixed steam all the time again.The combination of efficient hot vortex type surface carburetor and EEC module is implemented, and will improve Economy, power character and the exhaust index of automobile significantly, and the automotive industry technical merit of China is brought up to a new level.

Below in conjunction with accompanying drawing efficient hot vortex type surface carburetor is described further.

Fig. 1 is the structural representation of efficient hot vortex type surface carburetor.

Fig. 2 is the sectional view A-A of the vaporization chamber lid of efficient hot vortex type surface carburetor.

Fig. 3 is the part ring sectional view B-B of the centrifugal cup of efficient hot vortex type surface carburetor.

Fig. 4 is the part ring sectional view C-C of the reinforcement vaporization coupling rib of efficient hot vortex type surface carburetor.

Fig. 5 is the fuel feeding pump housing sectional view D-D of efficient hot vortex type surface carburetor.

Fig. 6 is the structural representation of the float chamber of efficient hot vortex type surface carburetor.

With reference to accompanying drawing, efficient hot vortex type surface carburetor presses mixed five functional units of vapour of vacuum compensation, metering air feed and water conservancy diversion to constitute by metered fuel charge, the vaporization of hot vortex type, fuel-steam.Necessary and the corresponding engine control module EEC of this Carburetor is supporting could proper functioning.During work, the fuel oil that is come by petrol pump enters in (46) float chamber through (37) inlet connector.(46) in the float chamber pasta through the common adjusting of (41) float, (40) float needle valve and (38) oil supply hole, remain in the certain height scope (± 1.5mm).Install because of (46) float chamber is independent of the carburetor main housing again, and guarantee that its pasta exceeds (28) fuel feeding metering-orifice more than 10 centimetres when installing, thereby make the oil pressure all-the-time stable at (28) fuel feeding metering-orifice place in 1.5% precision.Like this, as long as the EEC module provides voltage signal level (24) solenoid-driven (26) the electromagnetic fuel supply plunger that the pulsewidth certain frequency is adjustable or the certain pulsewidth of frequency is adjustable, can realize accurate metered fuel charge, fuel oil flows into hot vortex type vaporization functional unit.Hot vortex type vaporization functional unit connects together (4) vaporization chamber lid closely and is fixed on (5) carburetor main housing with (11) vaporization cavity by (29) positioning screwn.(9) centrifugal cup in the vaporization chamber is driven by (7) power guide rod by (30) direct current generator.(7) power guide rod and (9) centrifugal cup pass through to tie with (25) and connect.For reducing the cavity wearing and tearing, contacting by (15) copper bush of the lower end of power guide rod and cavity undertaken.(9) die casting has (6) to strengthen vaporization coupling rib and (10) eddy current strengthening rib on the centrifugal cup.Wherein has good wellability with gasoline after the technical finesse of cup upper surface.The shape of each rib sees that the part ring of Fig. 3, Fig. 4 cuts open figure on the cup.During work, the rotation of (9) centrifugal cup height speed, by (10) the eddy current strengthening rib on the cup, the oily vapour that drives in the vaporization chamber forms strong oily vapour eddy current.Meanwhile, the fuel oil of falling (9) centrifugal cup surface under centrifugal force and surface tension effects, the oil film that in cup and (8) vaporization strengthening rib surface forms, approaches outside thick.Strengthen the slits of the several pages of mild contractions that vaporization coupling rib and (8) vaporization strengthening rib form by (6), the intensity of oily vapour eddy current is further strengthened, this strong oily vapour eddy current impacts the cup sea surface oil slick, make atomize the rapidly volatilization vaporization of most of fuel oil, the higher oil content of remaining distillation temperature is then given with the elaioleucite attitude and is thrown to the vaporization chamber inwall, thoroughly vaporizes down in the further impact of eddy current and the heat effect of (13) auxiliary vaporization electric heating wire again.Usually the vapor tension all lower (less than 66.65KPa) of fuel oil adds this Carburetor from improving volumetric efficiency, and the trunnion size obtains very big, trunnion degree of vacuum not high (less than 10KPa) during work.Obviously, this degree of vacuum can not be oily vapour sucking-off and air mixing in vaporization chamber.Be provided with fuel-steam for this reason and press the vacuum compensation functional unit.This assembly is opened on interface on the expansion pipe in (47) air duct by (33) vapor tension vacuum compensation pipe, and (35) the expansion pipe lower interface that is opened in the vaporization chamber constitutes.Wherein the caliber of expansion pipe is 0.3～0.8 centimetre.By the air that expansion pipe enters, improved the oily vapour air pressure in the vaporization chamber, make it easier by the sucking-off of trunnion vacuum, also participate in the fuel gasification process simultaneously, make vaporization more perfect.Especially when startup and idling, (1) resistance joint throttle opening is very little, just have the considerable part air to enter via expansion pipe this moment, this air waters down oily vapour concentration, make easier the carrying out of steam vaporization, increased oily vapour air pressure and made oily vapour easier, thereby overcome common hollow throat type Carburetor bad drawback of vaporization when startup, idling by the sucking-off of trunnion vacuum.The fair supply of the air fuel ratio of motor depends on fuel oil and air and all distinguishes the accurate measurement supply.Control by metering air feed functional unit for the design's carburetor air amount.During work, the EEC module provides a throttle opening value and follows control gear to the reverse feedback of (22) throttle opening measurement potentiometer introducing, deliver to (3) torque type direct current generator by the driving voltage that this device comes out, cooperate (21) torsion spring, the aperture of control (1) resistance joint air door, thus realize the accurate measurement air feed.From the air that (1) resistance joint air door enters, when the mixed vapour rings of (17) water conservancy diversion of process and (11) vaporization cavity cooperated the trunnion of formation, flow velocity produced the certain vacuum degree greatly.From (36) oil gas quantity hole sucking-off, near the air stream that is accelerated (36) steam supply metering-orifice impacts oily vapour by this vacuum in the vaporization chamber, evenly mixes together in company with air, forms flammable mixed steam.Also be provided with (16) secondary water conservancy diversion in vaporization cavity lower end and mix the vapour ring, this ring is to be eborine annulus, under its effect, mixed steam forms strong eddy current, thereby become more even, it is more thorough to vaporize, and makes the mixed steam that finally enters in the cylinder almost completely be the vaporization attitude.

Claims (6)

1, a kind of atomization is good, air fuel ratio is accurately adjustable, and the bigger efficient hot vortex type vapourizing oil device of volumetric efficiency, it is characterized in that: Carburetor mixes vapour by metering air feed, metered fuel charge, the vaporization of hot vortex type, water conservancy diversion and fuel-steam presses five functional units of vacuum compensation to constitute.Wherein, the top of Carburetor is the metering gas supply assembly, (3) torque type direct current generator of nucleophobic merit machine control module EEC control, be used for driving (1) resistance closure and (21) torsion spring, (22) aperture measurement potentiometer then feeds back to actual throttle opening parameter EEC to improve control accuracy; (27) fuel feeding pump housing in the metered fuel charge assembly is contained in vaporization chamber and covers, and (26) electromagnetic fuel supply plunger is contained in (28) fuel feeding metering-orifice in the pump housing, and (46) float chamber is then independently installed with the position separating that is higher than Carburetor; Hot vortex type vaporization component is positioned at the Carburetor middle part, (9) centrifugal cup in the vaporization chamber, it is the rotary component that drives by (30) direct current generator, its upper surface is that (8) vaporization strengthening rib, the lower surface of the rib page structure of radial distribution is (10) eddy current strengthening rib of several pages of thin rib page structures, also has (13) auxiliary vaporization electric heating wire of spiral distribution on the interior inclined-plane of vaporization chamber; It is (36) steam supply metering-orifice by the densely covered aperture of the ring that is distributed in the vaporization chamber bottom that water conservancy diversion mixes the vapour assembly, (17) water conservancy diversion that are fixed on the funnel-like round structure of carburetor main inner walls mix the vapour ring, and the mixed vapour ring formation of (16) secondary water conservancy diversion that is fixed on the ivory shape circle structure of cavity lower end surface; Fuel-steam presses the vacuum compensation assembly to be made up of a sebific duct that is connected in air duct and vaporization chamber vacuum.

2, efficient hot vortex type surface carburetor according to claim 1 is characterized in that: the metered fuel charge functional unit is by (26) electromagnetic fuel supply plunger, and (27) fuel feeding pump housing and (46) float chamber constitute.Wherein (46) float chamber is an individual components, separates installation with carburetor main body.The float chamber pasta is higher than more than 10 centimetres of fuel delivery hole horizontal position, the duty ratio of time decision that fuel delivery is mentioned by the energising of (26) electromagnetic fuel supply plunger.

3, efficient hot vortex type surface carburetor according to claim 1 is characterized in that: the metering gas supply assembly is made of (1) resistance joint air door, (2) upper body, (3) torque type direct current generator, (22) aperture measurement potentiometer and (21) torsion spring.Wherein (1) resistance joint air door by with the cooperating of (33) steam-to-vacuum expansion pipe; the chock plate of common Carburetor and the function of closure are all united, add that the reverse feedback that aperture is introduced by (3) torque type direct current generator, (22) aperture measurement potentiometer follows the then big dynamic control accuracy that has improved air inflow of control.

4, efficient hot vortex type surface carburetor according to claim 1 is characterized in that: the vortex type vaporization component is strengthened vaporization coupling rib, (8) vaporization strengthening rib, (10) eddy current strengthening rib, (9) centrifugal cup (30) direct current generator, (7) power guide rod and (13) auxiliary vaporization electric heating wire by (11) vaporization chamber, (6) and is constituted.Wherein (6) strengthen the vaporization coupling help for several pages of die casting be triangle at the cutting plane of vaporization chamber lid lower surface, the ring cutting face be isosceles triangle or etc. recessed leg-of-mutton rib, (8) the vaporization strengthening rib is multipage die casting at the upper surface of (9) centrifugal cup and is radial annular spread, and the ring cutting face such as is at the rib page or leaf of protruding lumbar triangle shape.This rib page or leaf is processed into gasoline through sufacing good wellability.(10) the eddy current strengthening rib is the thin rib pages or leaves of several pages of die casting at centrifugal cup lower surface.

5, efficient hot vortex type surface carburetor according to claim 1 is characterized in that: water conservancy diversion mixes the vapour assembly and mixes vapour ring and the mixed vapour ring formation of (16) secondary water conservancy diversion by (36) steam supply metering-orifice, (17) water conservancy diversion.Wherein (36) steam supply metering-orifice is that the aperture of ring vaporization chamber bottom is the densely covered aperture about 1mm.(17) water conservancy diversion mix steam vent and are fixed on (5) carburetor main housing by (18) positioning screwn, are a funnelform annulus.(16) the mixed vapour ring of secondary water conservancy diversion is fixed on (11) vaporization chamber by (19) set screw, is eborine annulus.

6, efficient hot vortex type surface carburetor according to claim 1 is characterized in that: fuel-steam presses the vacuum compensation assembly to be made up of interface and (35) expansion pipe lower interface on (33) vapor tension vacuum compensation pipe and (34) expansion pipe.Wherein the expansion pipe caliber is 0.3～0.8 centimetre.(34) interface is opened in (1) resistance joint wind-force air duct in front of the door on the expansion pipe.(35) the expansion pipe lower interface is opened in (11) vaporization chamber.

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