CN204941758U - Electronic fuel injection throttle body - Google Patents
Electronic fuel injection throttle body Download PDFInfo
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- CN204941758U CN204941758U CN201520676241.8U CN201520676241U CN204941758U CN 204941758 U CN204941758 U CN 204941758U CN 201520676241 U CN201520676241 U CN 201520676241U CN 204941758 U CN204941758 U CN 204941758U
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Abstract
The utility model relates to electronic fuel injection technical field; Specifically, a kind of electronic fuel injection throttle body is related to.The utility model comprises body, the middle part of described body is provided with the transversely arranged cavity of some groups of upper/lower terminal opening, the upper end of body is provided with oil circuit, each cavity is connected with oil-feed nebulization channel, oil-feed nebulization channel is communicated with oil circuit, and oil-feed nebulization channel is provided with the nozzle for controlling oil-feed, the lower end of body is provided with the valve mechanism for controlling to motor transferring oil tolerance; Valve mechanism is provided with the valve block matched with each cavity; Described body is provided with air by-pass road, the outlet in air by-pass road and the outlet of all cavitys; The middle part in air by-pass road is provided with modulating valve.The utility model structure is simple, easy to operate, is applicable to multicylinder engine.
Description
Technical field
The utility model relates to electronic fuel injection technical field; Specifically, a kind of electronic fuel injection throttle body is related to.
Background technique
Along with the development of society, people more and more pay attention to the energy, also pay attention to gradually the energy-conservation of automobile, be car are at present increase year by year, and oil consumption is very big; In car running, in order to improve fuel utilization ratio, be proposed the automobile much carrying electric control fuel oil jet system in the market, by improving the fuel oil and air ratio that enter in motor car engine, make it to reach an effective ratio, improve the utilization ratio of fuel oil.Current throttle body great majority adopt a Valve controlling, and when motor is in idling, the pressure at both sides difference of valve is comparatively large, thus causes valve to produce vibration, and control accuracy is low.
Model utility content
The purpose of this utility model is to solve the deficiencies in the prior art, provides a kind of electronic fuel injection throttle body, and this throttle valve structure is stablized, and control accuracy is high.
Electronic fuel injection throttle body, comprise body, the middle part of described body is provided with the transversely arranged cavity of some groups of upper/lower terminal opening, the upper end of body is provided with oil circuit, each cavity is connected with oil-feed nebulization channel, oil-feed nebulization channel is communicated with oil circuit, and oil-feed nebulization channel is provided with the nozzle for controlling oil-feed, and the lower end of body is provided with the valve mechanism for controlling to motor transferring oil tolerance; Valve mechanism is provided with the valve block matched with each cavity; Described body is provided with air by-pass road, the outlet in air by-pass road and the outlet of all cavitys; The middle part in air by-pass road is provided with modulating valve.
Further, described air by-pass road comprises gas-entered passageway, outlet passageway and center-aisle, and gas-entered passageway and outlet passageway stagger and arrange, and gas-entered passageway is communicated with outlet passageway by center-aisle; Described modulating valve is arranged at center-aisle.
Further, be arranged with atomizing cup in cavity, the atomization annular groove that oil-feed nebulization channel comprises the outer side surface being arranged at atomizing cup and the oil inlet passage be communicated with oil circuit, described atomizing cup is provided with several spray holes, spray holes is communicated with oil inlet passage by atomization annular groove, and nozzle is arranged at oil inlet passage.
Further, valve mechanism comprises and often organizes rotating shaft that is that cavity matches and cross setting, and one end of rotating shaft is successively through all cavitys of respective sets, and described valve block is fixed on corresponding rotating shaft; Be provided with linkage structure between two adjacent rotating shafts, and adjacent two rotating shafts are connected by linkage structure.
Further, two adjacent rotating shafts are respectively active rotating shaft and driven spindle, described linkage structure comprises the active rotation sheet be fixedly connected with active rotating shaft and the driven rotating plate be connected with driven spindle, active rotation sheet is connected with active rotation head near one end of driven spindle, driven rotating plate is connected with driven swivel head, drive link is provided with between active rotation head and driven swivel head, one end of drive link is provided with transverse holes, active rotation head is flexibly connected with active rotation sheet through transverse holes, and active rotation head can rotate relative to active rotation sheet; Driven swivel head is provided with the perforation matched with the drive link the other end, and driven swivel head and drive link are slidably connected, and driven swivel head is flexibly connected with driven rotating plate and driven swivel head can rotate relative to driven rotating plate.
Further, the underpart of body is provided with the intermediate connection groove for being communicated with by adjacent two cavity outlets, and body is also provided with the air communication groove outlet in air by-pass road be communicated with one of them cavity outlet.
Preferably, the middle part of described body is provided with two groups of transversely arranged cavitys, often organize cavity and comprise at least two cavitys, the lower end surface of body is provided with criss-cross intermediate connection groove between adjacent 4 cavitys, and the outlet in air by-pass road at least and between one of them cavity outlet is provided with air communication groove.
Further, one end of rotating shaft is connected with banking stop, body is provided with the adjustable position-limit mechanism matched with banking stop, described position-limit mechanism comprises the fixing rod be threaded with body, one end of fixing rod is stretched out body and is oppositely arranged with banking stop, is provided with fastening spring between other one end of fixing rod and body.
Further, described oil circuit comprises the longitudinal oil duct and horizontal oil duct that are arranged on body upper end, and one of them longitudinal oil duct is provided with pressure governor.
Further, the side of body is provided with pcb board, and one of them rotating shaft is provided with position sensor for throttle body, is provided with sensor in one of them cavity, and sensor comprises temperature transducer and pressure transducer; Pcb board is connected with temperature transducer, pressure transducer, position sensor for throttle body, nozzle and modulating valve signal respectively.
Further, the outlet of cavity is provided with the oxygen sensor for responding to oxygen content, and pcb board is also connected with oxygen sensor signal.
Further, the lower end of body is provided with the vacuum tube for adjusting pressure, one end of vacuum tube and the outlet of cavity.
The beneficial effect that the utility model obtains is: the utility model structural stability, control accuracy are high, are applicable to multicylinder engine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is a kind of partial exploded view of the present utility model.
Fig. 3 is the schematic diagram at the another kind of visual angle of Fig. 1.
Fig. 4 is another kind of partial exploded view of the present utility model.
Reference character is:
1---body; 2---valve mechanism; 21---rotating shaft; 22---valve block; 3---oil-feed nebulization channel; 31---atomization annular groove; 32---oil inlet passage; 4---air by-pass road; 5---stepper motor; 6---atomizing cup; 61---spray holes; 7---active rotation sheet; 71---active rotation head; 8---driven rotating plate; 81---driven swivel head; 9---drive link; 10---intermediate connection groove; 11---air communication groove; 12---banking stop; 13---position-limit mechanism; 131---fixing rod; 132---fastening spring; 14---longitudinal oil duct; 15---pressure governor, 16---horizontal oil duct; 17---vacuum tube; 18---sensor; 19---nozzle; 20---cavity; 211---active rotating shaft; 212---driven spindle 41---gas-entered passageway; 42---outlet passageway; 43---center-aisle.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment 1: see Fig. 1 to Fig. 4.
Electronic fuel injection throttle body, comprise body 1, the middle part of described body 1 is provided with the transversely arranged cavity 20 of some groups of upper/lower terminal opening, the upper end of body 1 is provided with oil circuit, each cavity 20 is connected with oil-feed nebulization channel 3, oil-feed nebulization channel 3 is communicated with oil circuit, and oil-feed nebulization channel 3 is provided with the nozzle 19 for controlling oil-feed, the lower end of body 1 be provided with for control to motor transferring oil tolerance valve mechanism 2; Valve mechanism 2 is provided with the valve block 22 matched with each cavity; Described body 1 is provided with air by-pass road 4, the outlet in air by-pass road 4 and the outlet of all cavitys 20; The middle part in air by-pass road 4 is provided with modulating valve.In the present embodiment, outlet is arranged at the lower end of body 1.
The technical program is applied in electric control fuel oil jet system, be connected with air-strainer etc. in the upper end of body 1, when automobile normal running, oil pump pumps into gasoline in oil circuit, and oil pressure is formed in oil circuit, gasoline enters in oil-feed nebulization channel 3, cavity 20 by nozzle 19 successively; Nozzle 19 controls oil inlet quantity; The gasoline of atomization mixes in cavity 20 with air, valve mechanism 2 according to the amount of connection of travelling state adjustment cavity 20 and motor cavity, namely cavity 20 lower end valve block 22 open area.When automobile is in the idling stage, valve block 22 is in closed condition substantially, air is not almost had to enter cavity by air-strainer, substantially the gasoline of atomization is only had in cavity 20, enter amount of gasoline in motor cavity little, air needs to enter from air by-pass road 4 and mix in the outlet port of body 1 with atomization gas and also together enters in motor cavity.Secondly, when motor is in idling mode, the both sides gasoline difference of valve block 22 is larger, the vibration of bearing larger pressure for avoiding valve block 22 and bringing, the technology that the technical program adopts multiple cavity to be combined with multiple valve block 22, the area of each valve block 22 is relatively little, thus effective pressure reducing valve block 22 and bear, keep stability.
Further, described air by-pass road 4 comprises gas-entered passageway 41, outlet passageway 42 and center-aisle 43, and gas-entered passageway 41 and outlet passageway 42 stagger and arrange, and gas-entered passageway 41 is communicated with outlet passageway 42 by center-aisle 43; Described modulating valve is arranged at center-aisle.
In the specific implementation, gas-entered passageway and outlet passageway are all vertically arranged, center-aisle is longitudinally arranged, and center-aisle is in communication with the outside, center-aisle is connected with stepper motor 5, the rotating shaft of stepper motor 5 is connected with modulating valve, and stepper motor 5 drives modulating valve to move along center-aisle, thus reaches the openings of sizes controlling center-aisle 43 and outlet passageway 42 jointing place or the openings of sizes controlling center-aisle 43 and gas-entered passageway 41 jointing place; And then reach the effect of adjusting air inflow quantity.
Further, atomizing cup 6 is arranged with in cavity 20, the atomization annular groove 31 that oil-feed nebulization channel 3 comprises the outer side surface being arranged at atomizing cup 6 and the oil inlet passage 32 be communicated with oil circuit, described atomizing cup 6 is provided with several spray holes 61, spray holes 61 is communicated with oil inlet passage 32 by atomization annular groove 31, and nozzle 19 is arranged at oil inlet passage 32.
Preferably, the cross-section area being atomized annular groove 31 is less than 1/10 of oil inlet passage 32 cross-section area.When gasoline enters atomization annular groove 31 from oil circuit, gasoline is in high pressure conditions; When spraying from spray holes 61, formed spray pattern, exist in the mode of droplet so that in motor Thorough combustion.
Further, valve mechanism 2 comprises and the rotating shaft 21 often organizing the cross setting that cavity 20 matches, rotating shaft 21 cross setting, and one end of rotating shaft 21 is successively through all cavitys 20 of respective sets, and rotating shaft 21 is provided with the valve block 22 matched with cavity 20 lower ending opening; Be provided with linkage structure between two adjacent rotating shafts 21, and adjacent two rotating shafts 21 are connected by linkage structure.Keep closedown trend for ease of valve mechanism 2, at least one rotating shaft 21 is provided with the torsion spring moved to closed condition for drive shaft 21.
The Throughput of cavity 20 is controlled by the rotating shaft 21 of cross setting, due to when controlling, valve mechanism 2 controls by means of only an actuating motor, namely actuating motor only drives one of them rotating shaft 21, other rotating shafts 21 are driven by linkage structure and rotate, and realize the folding of the synchronous lower ending opening of each cavity 20.
Further, two adjacent rotating shafts 21 are respectively active rotating shaft 211 and driven spindle 212, described linkage structure comprises the active rotation sheet 7 be fixedly connected with active rotating shaft 211 and the driven rotating plate 8 be connected with driven spindle 212, active rotation sheet 7 is connected with active rotation 71 near one end of driven spindle 212, driven rotating plate 8 is connected with driven swivel head 81, active rotation is provided with drive link 9 between 71 and driven swivel head 81, one end of drive link 9 is provided with transverse holes, active rotation 71 is flexibly connected with active rotation sheet 7 through transverse holes, and active rotation 71 can rotate relative to active rotation sheet 7, driven swivel head 81 is provided with the perforation matched with drive link 9 the other end, and driven swivel head 81 is slidably connected with drive link 9, and driven swivel head 81 is flexibly connected with driven rotating plate and driven swivel head 81 can rotate relative to driven rotating plate.
At present when realizing Dual-spindle linked, generally adopt driving mechanism, as driving mechanisms such as gear, belt, sprocket wheels, these driving mechanisms will certainly increase installing space, and cost is higher.Adopt drive link 9 transmission, structure is simple, and synchronizing is high.When active rotating shaft 211 rotates, active rotation sheet 7 drives active rotation 71 and drive link 9 to rotate, and drive link 9 drives driven swivel head 81 and driven rotating plate 8 to rotate, and then drives driven spindle 212 to rotate.Finally reach, the valve block 22 on active rotating shaft 211 and valve block 22 synchronous on-off on driven spindle 212.
Further, the underpart of body 1 is provided with for the intermediate connection groove 10 by adjacent two cavity 20 outlet, is also provided with the air communication groove 11 by the outlet in air by-pass road 4 and one of them cavity 20 outlet.
Preferably, the middle part of described body 1 is provided with two groups of transversely arranged cavitys 20, often organize cavity 20 and comprise at least two cavitys 20, the lower end surface of body 1 is provided with criss-cross intermediate connection groove 10 between adjacent 4 cavitys 20, the outlet in air by-pass road 4 at least and one of them cavity 20 export between be provided with air communication groove 11.
In real work, the corresponding engine cylinder of each cavity 20; Vehicle is when idling, and each motor needs maintenance work, and now cavity 20 needs each engine cylinder conveying atomization gas and air, and air by-pass road 4 is by the outlet of air communication groove 11, intermediate connection groove 10 and each cavity 20.
Further, one end of rotating shaft 21 is connected with banking stop 12, body 1 is provided with the adjustable position-limit mechanism 13 matched with banking stop 12, described position-limit mechanism 13 comprises the fixing rod 131 be threaded with body 1, one end of fixing rod 131 is stretched out body 1 and is oppositely arranged with banking stop 12, is provided with fastening spring 132 between other one end of fixing rod 131 and body 1.
Banking stop 12 coordinates the angle of swing for limiting rotating shaft 21 with position-limit mechanism 13, namely control the folding size of the opening of cavity 20; Avoid angle of swing excessive.Meanwhile, adopt adjustable position-limit mechanism 13, make this device be applicable to the automobile of different models; The maximum horsepower of automobile, speed are limited, avoids hypervelocity.Fixing rod 131 can adopt screw, screw rod.
Further, described oil circuit comprises the longitudinal oil duct 14 and the longitudinal oil duct 14 of horizontal oil duct 16, two that are arranged on body 1 upper end and a horizontal oil duct 16 forms oil circuit, and one of them longitudinal oil duct 14 is provided with the pressure governor 15 for adjusting oil pressure.
When specifically arranging, another longitudinal oil duct 14 is provided with filler opening, and this longitudinal oil duct is oil input channel, and one of them longitudinal oil duct described is provided with oil outlet, and this longitudinal oil duct is oil road, and gasoline flows out through oil input channel, horizontal oil duct, oil road; Gasoline forms oil pressure in oil circuit, enters cavity 20 by oil-feed nebulization channel 3; Pressure governor 15 in order to adjust the oil pressure of oil circuit, to ensure that oil pressure is relatively stable, so that gasoline enters oil-feed nebulization channel 3.Work due to oil pump is external gasoline feed in the form of a pulse, thus cause gasoline pressure in oil circuit to be in state of changing, in the technical program, U-shaped loop is designed to regard to oil circuit, oil pressure is adjusted by pressure governor 15, when oil pressure is larger, the cross section that pressure governor 15 blocks oil circuit reduces, pressure release; When oil pressure is less, the cross section that pressure governor 15 blocks oil circuit increases, and increases the oil pressure in oil circuit.
U-shaped oil circuit can be convenient to all cavity 20 fuel feeding, and pressure governor 15 can regulate the oil pressure of oil circuit.
Further, the side of body 1 is provided with pcb board, and one of them rotating shaft 21 is provided with position sensor for throttle body, and be provided with sensor 18 in one of them cavity 20, sensor 18 comprises temperature transducer and pressure transducer; The outlet of cavity 20 is provided with the oxygen sensor for responding to oxygen content, and pcb board is connected with temperature transducer, pressure transducer, oxygen sensor, position sensor for throttle body, nozzle and modulating valve signal respectively.
Pcb board calculates the oil mass of cavity 20 according to the temperature in cavity 20, pressure and oxygen, thus the fuel injection quantity of Control Nozzle; According to the transferring the files of automobile, rotation angle that position sensor for throttle body adjusts rotating shaft 21; Secondly, when idling, according to oxygen content, adjustment stepper motor 5 drives modulating valve to move and regulates the air inflow of air bypass.Modulating valve is connected with the rotating shaft of stepper motor 5.
Further, the lower end of body 1 is provided with the vacuum tube 17 for adjusting pressure, one end of vacuum tube 17 and the outlet of cavity 20.
During the technical program work, valve block 22 beginning of rotating shaft 21 is in closed condition, and form atomization gas and the air of high pressure in cavity 20, now valve block 22 is in side high pressure conditions, and opposite side is in atmospheric pressure state, is unfavorable for that rotating shaft 21 rotates; Now vacuum tube 17 can by temporary for the outlet of cavity 20 connection, the pressure balance of adjustment valve block 22 both sides, and to be easy to open rotating shaft 21, thus the effective prior art middle valve plate 22 that solves is opened by force, the problem that easy deformation, life-span are shorter.
Below be only the preferred embodiment of the application, equivalent technical solutions on this basis still falls into application protection domain.
Claims (10)
1. electronic fuel injection throttle body, it is characterized in that: comprise body, the middle part of described body is provided with the transversely arranged cavity of some groups of upper/lower terminal opening, the upper end of body is provided with oil circuit, each cavity is connected with oil-feed nebulization channel, oil-feed nebulization channel is communicated with oil circuit, and oil-feed nebulization channel is provided with the nozzle for controlling oil-feed, and the lower end of body is provided with the valve mechanism for controlling to motor transferring oil tolerance; Valve mechanism is provided with the valve block matched with each cavity; Described body is provided with air by-pass road, the outlet in air by-pass road and the outlet of all cavitys; The middle part in air by-pass road is provided with modulating valve.
2. electronic fuel injection throttle body according to claim 1, it is characterized in that: in cavity, be arranged with atomizing cup, the atomization annular groove that oil-feed nebulization channel comprises the outer side surface being arranged at atomizing cup and the oil inlet passage be communicated with oil circuit, described atomizing cup is provided with several spray holes, spray holes is communicated with oil inlet passage by atomization annular groove, and nozzle is arranged at oil inlet passage.
3. electronic fuel injection throttle body according to claim 1, it is characterized in that: valve mechanism comprises and often organizes rotating shaft that is that cavity matches and cross setting, one end of rotating shaft is successively through all cavitys of respective sets, and described valve block is fixed on corresponding rotating shaft; Be provided with linkage structure between two adjacent rotating shafts, and adjacent two rotating shafts are connected by linkage structure.
4. electronic fuel injection throttle body according to claim 3, it is characterized in that: two adjacent rotating shafts are respectively active rotating shaft and driven spindle, described linkage structure comprises the active rotation sheet be fixedly connected with active rotating shaft and the driven rotating plate be connected with driven spindle, active rotation sheet is connected with active rotation head near one end of driven spindle, driven rotating plate is connected with driven swivel head, drive link is provided with between active rotation head and driven swivel head, one end of drive link is provided with transverse holes, active rotation head is flexibly connected with active rotation sheet through transverse holes, and active rotation head can rotate relative to active rotation sheet, driven swivel head is provided with the perforation matched with the drive link the other end, and driven swivel head and drive link are slidably connected, and driven swivel head is flexibly connected with driven rotating plate and driven swivel head can rotate relative to driven rotating plate.
5. electronic fuel injection throttle body according to claim 1, it is characterized in that: the underpart of body is provided with the intermediate connection groove for being communicated with by adjacent two cavity outlets, and body is also provided with the air communication groove outlet in air by-pass road be communicated with one of them cavity outlet.
6. electronic fuel injection throttle body according to claim 1, it is characterized in that: the middle part of described body is provided with two groups of transversely arranged cavitys, often organize cavity and comprise at least two cavitys, the lower end surface of body is provided with criss-cross intermediate connection groove between adjacent 4 cavitys, and the outlet in air by-pass road at least and between one of them cavity outlet is provided with air communication groove.
7. electronic fuel injection throttle body according to claim 3, it is characterized in that: one end of rotating shaft is connected with banking stop, body is provided with the adjustable position-limit mechanism matched with banking stop, described position-limit mechanism comprises the fixing rod be threaded with body, one end of fixing rod is stretched out body and is oppositely arranged with banking stop, is provided with fastening spring between other one end of fixing rod and body.
8. electronic fuel injection throttle body according to claim 1, is characterized in that: described oil circuit comprises the longitudinal oil duct and horizontal oil duct that are arranged on body upper end, and one of them longitudinal oil duct is provided with pressure governor.
9. electronic fuel injection throttle body according to claim 3, it is characterized in that: the side of body is provided with pcb board, one of them rotating shaft is provided with position sensor for throttle body, is provided with sensor in one of them cavity, and sensor comprises temperature transducer and pressure transducer; Pcb board is connected with temperature transducer, pressure transducer, position sensor for throttle body, nozzle and modulating valve signal respectively; The lower end of body is provided with the vacuum tube for adjusting pressure, one end of vacuum tube and the outlet of cavity.
10. electronic fuel injection throttle body according to claim 1, it is characterized in that: described air by-pass road comprises gas-entered passageway, outlet passageway and center-aisle, gas-entered passageway and outlet passageway stagger and arrange, and gas-entered passageway is communicated with outlet passageway by center-aisle; Described modulating valve is arranged at center-aisle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520676241.8U CN204941758U (en) | 2015-09-02 | 2015-09-02 | Electronic fuel injection throttle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520676241.8U CN204941758U (en) | 2015-09-02 | 2015-09-02 | Electronic fuel injection throttle body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204941758U true CN204941758U (en) | 2016-01-06 |
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ID=55009196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520676241.8U Active CN204941758U (en) | 2015-09-02 | 2015-09-02 | Electronic fuel injection throttle body |
Country Status (1)
| Country | Link |
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| CN (1) | CN204941758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041536A (en) * | 2015-09-02 | 2015-11-11 | 东莞传动电喷科技有限公司 | Electrically-controlled fuel-oil ejection throttle valve body |
-
2015
- 2015-09-02 CN CN201520676241.8U patent/CN204941758U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041536A (en) * | 2015-09-02 | 2015-11-11 | 东莞传动电喷科技有限公司 | Electrically-controlled fuel-oil ejection throttle valve body |
| CN105041536B (en) * | 2015-09-02 | 2017-10-20 | 东莞传动电喷科技有限公司 | Electronic fuel injection throttle body |
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