CN1048539C - Single jet nozzle electric control oil spraying carburettor - Google Patents

Single jet nozzle electric control oil spraying carburettor Download PDF

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Publication number
CN1048539C
CN1048539C CN94116564A CN94116564A CN1048539C CN 1048539 C CN1048539 C CN 1048539C CN 94116564 A CN94116564 A CN 94116564A CN 94116564 A CN94116564 A CN 94116564A CN 1048539 C CN1048539 C CN 1048539C
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China
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valve
air
electric control
plate
oil
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Expired - Fee Related
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CN94116564A
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CN1124325A (en
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李清济
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Abstract

The present invention relates to an electronic control carburetor which is designed for improving the atomization effect of fuel oil, etc. The electronic control carburetor mainly comprises an electronic control device, a flow diversion sleeve, a leaf type air valve, an electronic control single oil nozzle, a plurality of layers of vortex flow diversion rings, a base and a bottom plate which are arranged and fixed orderly from top to bottom, wherein the leaf type air valve is composed of a valve plate, an adjustable replacement liner plate and a valve base, and opens in a direction which is perpendicular with an air inlet direction; the vortex flow diversion rings are arranged in the base, and have staggered rotary directions; the liner plate and the bottom plate can be replaced according to the requirements of the power and installation sizes of different gasoline internal combustion engines; the air valve is arranged above the oil nozzle; air uniformly passes through the vortex rings in an equal amount so as to form small vortexes with staggered rotary directions; the air and atomized fuel oil are uniformly mixed, and enter a cylinder without a block.

Description

Single jet nozzle electric control oil spraying carburettor
The present invention relates to a kind of supplier of general combustion engine ignition mixture, relate to the electronic controlled carburetor of a kind of fuel combination and air or rather.
Existing gasoline engine uses the Carburetor of three kinds of structures usually, comprises traditional Carburetor, single nozzle central authorities oil injection type electronic impulse control fueling injection equipment and multiinjector electronic impulse control fueling injection equipment, and back two kinds of Carburetors are electric oil spraying unit.
The shortcoming of tradition Carburetor is that acceleration performance is poor; because the air inlet valve is the downflow direction of device at Venturi throat; particularly at the opening angle of Air valves hour; fuel-air mixed gas can be subjected to stopping of the little butterfly valve of the face of holding; fully the elaioleucite of atomizing can not form oil film on butterfly valve; brought in the cylinder by follow-up air more afterwards, the time delays that causes fuel oil to enter cylinder influences acceleration performance.In addition, because traditional Carburetor can not wait according to the "on" and "off" of the variation of the air temperature in the external world and gasoline engine self-temperature etc. and air conditioning equipment of car and revise fuel delivery automatically, therefore under various different conditions, the pumping action of piston can cause fuel-air ratio to cross when rare the phenomenon of overrich again sometimes, and promptly traditional Carburetor can not satisfy the demand under the various different operating modes of gasoline engine.
Electric oil spraying unit is provided with electric control device, opening or closing of coolant water temperature by sensor air temperature, gasoline engine, air negative pressure, butterfly valve corner, air conditioner, signals such as automobile rotational speed, at any time revise fuel-air ratio by single-chip microcomputer according to the air input of the procedure auto-control slow train air-regulating valve of storing and the fuel injection quantity of oil nozzle, to satisfy the requirement of the various different operating modes of gasoline engine.
But, because the structural shortcoming of butterfly valve in the single nozzle that uses the at present central authorities fueling injection equipment itself, can hinder the mixed gas air-flow, and the air inlet curve can not be complementary with the performance characteristic of B/P EGR Back Pressure Transducer EGR, particularly the butterfly valve enable possition is when 70 degree are above, the variation of air mass flow is more or less the same, and B/P EGR Back Pressure Transducer EGR sensitivity in this angular range is descended, and it is bad to cause quickening transiting performance.In addition, the acceleration performance of single nozzle central authorities oil injection type electric oil spraying unit is also bad, because air butterfly valve is mounted on the nozzle downflow direction, when this valve of gas mixture process, flow to not smooth, when particularly the butterfly valve small angle is opened, the butterfly valve that the inabundant large particle oil droplet that atomizes is advanced air stops, though electric control device can accurately be controlled fuel-air ratio, but mixed oil and gas is stopped by butterfly valve often, fuel oil could be brought into cylinder by follow-up air stream after forming oil film on the butterfly valve face, form the phenomenon of " oil chases after air ", because the quality of elaioleucite is bigger than air molecule quality, flow velocity is slow, so do not chase after air, cause the instantaneous fuel feeding deficiency of gasoline engine, power can not in time increase, thereby acceleration performance is bad.
The present multiinjector electric oil spraying unit that uses, its fuel oil is to go up in the nozzle DCI direct cylinder injection of air inlet valve inlet alive from being contained in the cylinder top, though acceleration performance is good under the low speed operating mode of gasoline engine, fuel oil in the cylinder is difficult for evenly mixing fully with air, cause and use the gasoline engine of multiinjector electric oil spraying unit when low speed, to burn insufficient, poisonous carbon monoxide gas body burden is higher, when travelling at low speed or in the urban district especially, the single jet nozzle electric control oil spraying carburettor of this structure is more taller than the fuel consumption of traditional Carburetor.In addition, the very complicated maintenance of multiinjector electric controller structure is difficult for, cost height, and also very high to the required precision of each oil nozzle fuel injection quantity, otherwise can cause the oil inlet quantity difference of each cylinder.
The objective of the invention is to design a kind of single jet nozzle electric control oil spraying carburettor, single jet nozzle electric control oil spraying carburettor with a kind of structure can satisfy the air displacement difference, acceleration performance requires different various gasoline engines, have easy disassembling, installation and maintenance conveniently, the characteristics that fuel atomization effect is good, the thermal efficiency is high, acceleration performance is good.
Single jet nozzle electric control oil spraying carburettor of the present invention, it comprises: the water conservancy diversion cover, the Air valves of forming by movable valve plate and fixed valve base, slow train air automatic regulating valve, air negative pressure sensor, fuel pump and the oil pipe thereof that is communicated with Air valves, movable valve plate aperture rotary angle transmitter and oil pressure regulator, automatically controlled single oil nozzle, the electric control device that is connected with air automatic regulating valve, air negative pressure sensor, rotary angle transmitter and engine water temperature, air intake temp sensor, pump switch and Automobile air conditioner switch, base and base plate is characterized in that:
Have leaf lobe formula valve opening on the valve plate of described Air valves and the valve seat, described Air valves also comprises the adjustable displacement backing plate that is installed in valve plate and valve base chamber, have leaf lobe formula valve opening on the adjustable displacement backing plate, described valve plate, adjustable displacement backing plate and valve seat are flatly located up and down respectively, form the leaf lobe formula valve with the airintake direction vertical unlocking;
Described automatically controlled single oil injecting nozzle is arranged in the recessed oil pocket of described Air valves lower seat;
Also comprise be arranged in the base bowl chamber, the eddy current guide ring of two-layer at least upper and lower intussusception.
Described eddy current guide ring is a hollow cone, is arranged at intervals with the blade of rotation direction to the left or to the right on the outer circumferential face of cone, the opposite rotation direction that becomes to interlock of the blade rotation direction on the eddy current guide ring of two-layer at least intussusception up and down.
Described fuel pump and oil pipe are installed on the outer periphery of described Air valves valve seat.
Described electric control device is set in place in the air-strainer of single nozzle electronic controlled carburetor top.
Described base plate is the removable flat board made from the heat insulation material of insulation.
The Air valves device that the present invention will be made up of valve plate, adjustable displacement backing plate, valve seat is above automatically controlled single oil nozzle, the butterfly valve that is about to traditional control fuel-air mixture changes over the leaf lobe formula valve with the airintake direction vertical unlocking, makes air evenly enter the Carburetor equally from circumferencial direction; In the adjustable displacement backing plate that valve plate and fixing valve base chamber are set up, different operating modes that can be required according to the gasoline engine of dissimilar and different air displacemenies.Different acceleration performance require to select the transposing backing plate; The eddy current guide ring that multilayer can make the staggered rotation direction of air is set in the base under automatically controlled single oil nozzle, make the little eddy current that through the eddy current guide ring time, forms staggered rotation direction from the air of Air valves with abundant atomized fuel and oil particles is evenly mixed with air swirl stream, more directly, enter in the cylinder with having no to stop.
Further specify technology of the present invention below in conjunction with embodiment's accompanying drawing
Fig. 1 single jet nozzle electric control oil spraying carburettor decomposition texture schematic representation
The plan structure schematic representation of Fig. 2 single jet nozzle electric control oil spraying carburettor
Referring to Fig. 1, be respectively air-strainer 19 among the figure from top to bottom, be installed in electronic control plate 18, water conservancy diversion cover 1, valve plate 2, adjustable displacement backing plate 3, valve seat 5, a plurality of eddy current guide ring 6, base 7 and base plate 8 in the air-strainer.
The heat insulation material of base plate 8 usefulness insulation is made, base plate 8 is dismantled and assembled form with being connected and fixed of base 7, can provide for simple replacement of base plate according to the installation dimension of different manufacturers different model gasoline engine, a kind of electronic oil injection device of specification is contained on the gasoline engine of different model at an easy rate, base plate 8 is not only as thermal baffle but also be used as the base plate of electronic oil injection device, dual-use material.
Base 7 is for leaking the bowl body structure at the end, and the bottom is fuel-air mixture outlet 71, has screw 72 on the end face periphery of bowl body, be used for valve seat 5 spiral shells that are positioned at its top solid, bowl body bottom surface periphery is provided with fin 73, and fin 73 bottoms have screw, are used for base plate 8 spiral shells solid.
Eddy current guide ring 6 is the hollow-cone body, at interval a plurality of blades 61 is set on the outer periphery, become left-handed to or dextrorotation to arrangement.A plurality of eddy current guide rings 6 are together nestable by size, as three among the figure large, medium and small eddy current guide rings, the staggered rotation direction structure that the rotation direction of their outer periphery upper blades 61 is respectively left and right, left (or right, left and right), the nestable eddy current guide ring 61 of set multilayer crouches in the bowl chamber of base 7, its effect is to make the air rotation direction of interlocking, the little eddy current that can form staggered rotation direction when being air process eddy current guide ring atomizes fuel oil fully, oil particles after the atomizing evenly mixes with air swirl stream, and enters in the cylinder with having no to stop.
Valve seat 5 is a disc, and center position has recessed oil pocket 51, the oil pocket bottom opening, and electronic control injection mouth 10 places this oil pocket 51.The valve seat card along the circumferential direction has leaf lobe formula valve opening 52, the outer periphery of valve seat 5 end faces and bottom surface are provided with respectively and water conservancy diversion cover 1, the solid screw 53,54 of base 7 spiral shells, circumferencial direction along valve seat 5 is provided with air automatic regulating valve 12, air negative pressure sensor 13, oil pump 9, rotary angle transmitter 14, sector bevel gear 4 and the oil pressure regulator 11 that is communicated with valve seat 5,16 is oil inlet pipe among the figure, and 15 is return tube.
Usually the fuel pump of electronic oil injection device is the outer mounting structure that separates with Carburetor, and the present invention is installed in oil pump 9 on the carburetor main body, and fuel pump and electronic oil injection device are fused, and can shorten oil line pipe, avoids fault, for ease of maintenaince.
Adjustable displacement pad valve plate plate face along the circumferential direction also has the throttle wiring that leaf lobe formula valve opening 22,17 rotates for pulling valve plate 2.
The present invention is provided with discoideus adjustable displacement backing plate 3 at valve plate 2 and 5 of valve seats, be embedded in valve seat 5 above, play regulating valve seat leaf lobe formula valve opening 52 sizes and shape.Plate body center drilling 31, can with center drilling 21,51 consistencies from top to bottom of valve plate 2, valve seat 5.Leaf lobe formula valve opening 32 along the circumferential direction is set on the plate body of adjustable displacement backing plate 3, and the big I of the switch of valve opening 32, area and shape is made according to the power of gasoline engine, changes according to power selection during use.
The effect of sector bevel gear 4 is that the action of stepping on the gas through wire rope transfers is passed to rotary angle transmitter 14 on the valve seat 5, the rotation that control valve plate 2 is done with respect to valve seat 5, promptly control the unlatching space of 5 of valve plate 2 and valve seats, movable valve plate 2 and the acting in conjunction formation leaf lobe formula of fixing adjustable displacement backing plate 3, valve seat 5 and the valve of airintake direction vertical unlocking.
1 is the water conservancy diversion cover, has screw 101 on its outer periphery, water conservancy diversion cover center drilling 102, water conservancy diversion overlaps 1 spiral-lock on valve seat 5, and its screw 101 and valve seat screw 53 times are corresponding, and available bolt is connected water conservancy diversion cover 1 and locks together with valve seat 5,20 is fixing rod among the figure, and locking is on valve seat 5.
The present invention is installed in electronic control plate 18 in the air-strainer, not only simplified and shortened elastic cable paper but also electric control device is in the environment of cleaning solar heat protection, simultaneously owing to the enclosing cover of air-strainer is made of sheet metal usually, so the electronic control plate needn't be made electromagnetic shielding by the added metal box.
Single jet nozzle electric control oil spraying carburettor after the assembling can be referring to the plan view of Fig. 2,1 is the water conservancy diversion cover among the figure, 2 is that valve plate, 9 is oil pump, 11 is that oil pressure regulator, 12 is that air automatic regulating valve, 13 is the air negative pressure sensor, and 14 is that rotary angle transmitter, 16 is that oil inlet pipe, 15 is that return tube, 17 is the throttle wiring.
Advantage of the present invention is: can pass through to change base plate and adjustable displacement with a kind of single injector electronic controlled carburetor of model Backing plate satisfies the capacity difference, acceleration requires different various gasoline engines; Adopt modular structural design, Simple and parts are concentrated again, easy disassembling, and installation and maintenance are convenient; Fuel atomization effect is good, and fuel oil energy and sky Gas mixes equably, and thermal efficiency height, the saving energy can both will have suitable fuel-air under various operating mode The mist of ratio is sent in the gasoline engine, and burning fully, reduced the content of carbon monoxide in the exhaust, have Benefit environmental protection; Owing to do not use traditional butterfly valve, fuel-air mixed gas can enter in the cylinder with not stopped, Therefore acceleration is good.

Claims (5)

1, a kind of single jet nozzle electric control oil spraying carburettor, it comprises: the water conservancy diversion cover, the Air valves of forming by movable valve plate and fixed valve base, the air automatic regulating valve that is communicated with valve seat, air negative pressure sensor, fuel pump and oil pipe, rotary angle transmitter and oil pressure regulator, automatically controlled single oil nozzle, the electric control device that is connected with air automatic regulating valve, air negative pressure sensor, rotary angle transmitter and engine water temperature, air intake temp sensor, pump switch and Automobile air conditioner switch, base and base plate is characterized in that:
Have leaf lobe formula valve opening on the valve plate of described Air valves and the valve seat, described Air valves also comprises the adjustable displacement backing plate that is installed in valve plate and valve base chamber, have leaf lobe formula valve opening on the adjustable displacement backing plate, described valve plate, adjustable displacement backing plate and valve seat are flatly located up and down respectively, form the leaf lobe formula valve with the airintake direction vertical unlocking;
The oil nozzle of described single jet nozzle electric control oil spraying carburettor is arranged on the below of described Air valves;
Also comprise be arranged in the base bowl chamber, the eddy current guide ring of two-layer at least upper and lower intussusception.
2, single jet nozzle electric control oil spraying carburettor according to claim 1, it is characterized in that: described eddy current guide ring is a hollow cone, be arranged at intervals with the blade of rotation direction to the left or to the right on the outer circumferential face of cone, the opposite rotation direction that becomes to interlock of the blade rotation direction on the eddy current guide ring of two-layer at least intussusception up and down.
3, single jet nozzle electric control oil spraying carburettor according to claim 1 is characterized in that: described fuel pump and oil pipe are installed on the outer periphery of described Air valves valve seat.
4, single jet nozzle electric control oil spraying carburettor according to claim 1 is characterized in that: described electric control device is set in place in the air-strainer of single nozzle electronic controlled carburetor top.
5, single jet nozzle electric control oil spraying carburettor according to claim 1 is characterized in that: described base plate is the removable flat board made from the heat insulation material of insulation.
CN94116564A 1994-10-08 1994-10-08 Single jet nozzle electric control oil spraying carburettor Expired - Fee Related CN1048539C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN94116564A CN1048539C (en) 1994-10-08 1994-10-08 Single jet nozzle electric control oil spraying carburettor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN94116564A CN1048539C (en) 1994-10-08 1994-10-08 Single jet nozzle electric control oil spraying carburettor

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CN1124325A CN1124325A (en) 1996-06-12
CN1048539C true CN1048539C (en) 2000-01-19

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CN94116564A Expired - Fee Related CN1048539C (en) 1994-10-08 1994-10-08 Single jet nozzle electric control oil spraying carburettor

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187819A (en) * 1977-04-05 1980-02-12 Roberto Longobardi Frusto-conical, spiral fuel economization and pollution reduction device for use with carburetors of internal combustion engines
RU1774051C (en) * 1989-05-06 1992-11-07 Т.Х.Вильданов Device for homogenizing fuel-air mixture in internal combustion engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187819A (en) * 1977-04-05 1980-02-12 Roberto Longobardi Frusto-conical, spiral fuel economization and pollution reduction device for use with carburetors of internal combustion engines
RU1774051C (en) * 1989-05-06 1992-11-07 Т.Х.Вильданов Device for homogenizing fuel-air mixture in internal combustion engine

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