CN202108584U - Dynamic gas supply device of a turbo supercharging diesel motor - Google Patents
Dynamic gas supply device of a turbo supercharging diesel motor Download PDFInfo
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- CN202108584U CN202108584U CN2011202082506U CN201120208250U CN202108584U CN 202108584 U CN202108584 U CN 202108584U CN 2011202082506 U CN2011202082506 U CN 2011202082506U CN 201120208250 U CN201120208250 U CN 201120208250U CN 202108584 U CN202108584 U CN 202108584U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model relates to a dynamic gas supply device of a turbo-charged diesel motor, comprising a main turbo charger connected with a motor exhaust gas discharge tube, wherein the motor exhaust gas discharge tube is provided with an auxiliary turbo charger in serial connected with a main turbo charger; the auxiliary turbo charger comprises an auxiliary turbine and an auxiliary charger which are coaxially connected, a gas outlet tube of the auxiliary charger is connected with a motor gas inlet manifold by a gas storage tank; the auxiliary turbine is provided with an electric by-pass valve in parallel to the auxiliary turbine; an electric gas supply device is arranged between the gas storage tank and the motor gas inlet manifold. Before the 'air/fuel ratio' of the motor is unbalance, the gas is timely supplied. After the motor is at the normal operation state, the dynamic gas supply device timely exits without using the power and electric power resource of the vehicle, thus the bad effect is not generated on the vehicle.
Description
Technical field
The utility model relates to a kind of engine charge making-up air device, the dynamic making-up air device of especially a kind of turbo-charging diesel motor.
Background technique
For solving convenient trip of city dweller and urban road congestion problem, urban mass-transit system is generally first developed in each big and medium-sized cities.Along with the development of urban mass-transit system, the tail gas pollution of public transit vehicle and energy consumption more and more cause the concern of society, and this also is related to the image in city simultaneously.Except that subway and track traffic, each city attempts generally adopting that low emission and zero pollutes such as vehicle that uses rock gas and electric vehicle etc.However, the power system of urban public traffic vehicles is main with DENG still, and public transit vehicle is started to walk, the phenomenon of acceleration over-emitting black exhaust is very general.Not only polluted environment, wasted the energy, returned " city business card " and cover with a slice shade.
Public transit vehicle starting, acceleration over-emitting black exhaust are not the problem of DENG to a great extent.Under declared working condition, the DENG that designs now, makes can satisfy emission request, at least can " over-emitting black exhaust ".Cause the immediate cause of over-emitting black exhaust; Be necessary frequent starting, the operating conditions of acceleration and the hysteresis characteristic of gas handling system of public transit vehicle; Make that " air fuel ratio " (getting into the air of motor and ratio of fuel oil) of motor is seriously unbalance, the essence of over-emitting black exhaust is that burning is insufficient, cause burning bad have two kinds maybe: air inlet very little or fuel feeding undesired; What obviously, we discussed belongs to the former.
Yet motor tonifying Qi technology is not any new technology, before exhaust-gas turbocharger invention, and old brand industrial technology developed countries such as America and Europe this technology that just begins one's study, exhaust turbine pressuring technology continues into the present as outstanding person wherein.Because the high speed development of Modern Manufacturing Technology, make with cheaper price manufacturing high speed, high efficiency, high pressure ratio even the variable cross section exhaust-gas turbocharger become a reality, just make it surplus nearly ten, applied in year.Reflection lags behind and singly increases the dynamic range features of limited to turbocharging technology; Produced the combination supercharging; As: engine driven supercharging+exhaust gas turbocharge, electronic supercharging, electronic supercharging+exhaust gas turbocharge etc., the dynamic range with motor is complementary as far as possible, has obtained suitable effect.But quicken moment (because turbosupercharger lags behind " deficency " that cause) tonifying Qi technology for motor, industry does not have final conclusion always, and main cause possibly be acceleration mode proportion in engine operation too little and relevant " value " problem.
The model utility content
The technical problem that the utility model will solve is: propose a kind of can be before motor " air fuel ratio " be unbalance, in time replenish air inlet; Motor withdraws from the dynamic making-up air device of turbo-charging diesel motor after getting into normal working in good time.
The technological scheme that the utility model adopted is: the dynamic making-up air device of a kind of turbo-charging diesel motor; Comprise the main turbosupercharger that is connected with the engine exhaust outlet pipe, also be provided with the auxilliary turbosupercharger of connecting on the described engine exhaust outlet pipe with main turbosupercharger; Described auxilliary turbosupercharger comprises coaxial continuous auxiliary turbine and auxilliary pressurized machine, and the steam outlet pipe of described auxilliary pressurized machine is connected with engine intake manifold through gas holder; Be in parallel installed with electronic bypass valve on the described auxiliary turbine; Be provided with electronic aeration valve between described gas holder and the engine intake manifold.
Further say, in order not need extra energy resource supply, also do not consume vehicle-mounted electric weight, the described auxilliary turbosupercharger of the utility model is gas holder inflation by exhaust gas drive when engine idle.
The utility model also comprises central unit, and described central unit is gathered gas pedal acceleration/position signal, Vehicle Speed signal, engine rotational speed signal, gas holder pressure signal, gearbox gear signal and engine ignition switch signal respectively through a plurality of sensors; And through to the unlatching of electronic bypass valve of the analysis and Control of above-mentioned signal and electronic aeration valve or close.Can guarantee that like this this device is operated in rational state.
Further say again, in order be better not cause the waste of the energy, on the steam outlet pipe of the described auxilliary pressurized machine of the utility model, the place, air outlet of closely auxilliary pressurized machine is provided with check valve to the gas holder inflation.
The gas holder pressure gauge of measuring and showing gas holder pressure is installed on the described gas holder of the utility model.Can clearly detect and show the force value in the gas holder, thereby better grasp the time of opening bypass valve.
The steam outlet pipe of the described auxiliary turbine of the utility model is provided with first order baffler and second level baffler, the noise that is produced when being used to reduce exhaust emissions.
The working principle of the utility model is: utilize a low power exhaust-gas turbocharger, promptly auxilliary turbosupercharger when engine idle, utilizes engine exhaust to drive, and it is inflated to gas holder.The moment of engine start or acceleration, open aeration valve, to the engine intake manifold tonifying Qi, suitably proofread and correct the air fuel ratio imbalance state.When engine speed reaches certain value, main turbosupercharger can proper functioning after, open bypass valve when closing aeration valve, air compensating system withdraws from, motor gets into normal working.In all processes, the tight monitoring accelerator pedal signal of control unit, engine rotational speed signal and gas holder air pressure signal etc. are controlled the keying of aeration valve and the switch of bypass valve etc. in good time, guarantee that whole device is operated in rational state.
The beneficial effect of the utility model is: 1, can before motor " air fuel ratio " is unbalance, in time replenish air inlet.Motor withdraws from after getting into normal working in good time, and does not use the power and the electric power resource of vehicle, can not produce harmful effect to vehicle; To such an extent as to 2, can improve and eliminate the deficency phenomenon that motor quickens moment fully; Eliminate " over-emitting black exhaust " through improving fuel combustion conditions; Can effectively reduce exhaust pollution; Simultaneously can also reduce oil consumption, have good social benefit and certain economic benefits, being particularly suitable for urban mass-transit system is the vehicle of fuel with diesel oil.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation block diagram of the preferred embodiment of the utility model;
Fig. 2 is the structural principle block diagram of the utility model;
Among the figure: 1, suction tude; 3, gas exhaust manifold; 4, main turbine; 5, main pressurized machine; 7, electronic bypass valve; 8, auxiliary turbine; 9, auxilliary pressurized machine; 11～12, check valve; 13, low pressure gasholder; 14, electronic aeration valve; 15, intake manifold; 16, gas holder pressure gauge; 17, first order baffler; 18, second level baffler.
Embodiment
Combine accompanying drawing and preferred embodiment that the utility model is done further detailed explanation now.These accompanying drawings are the schematic representation of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The dynamic making-up air device of a kind of turbo-charging diesel motor as shown in Figure 1 comprises the main turbosupercharger that is connected with the engine exhaust outlet pipe, and main turbosupercharger comprises main turbine 4 and main pressurized machine 5; Main turbine 4 connects gas exhaust manifold 3; Also be provided with the auxilliary turbosupercharger of connecting on the described engine exhaust outlet pipe with main turbosupercharger; Described auxilliary turbosupercharger comprises coaxial continuous auxiliary turbine 8 and auxilliary pressurized machine 9, and the steam outlet pipe of described auxilliary pressurized machine 9 is connected with engine intake manifold 15 through gas holder 13; Be in parallel installed with electronic bypass valve 7 on the described auxiliary turbine 8; Be provided with electronic aeration valve 14 between described gas holder 13 and the engine intake manifold 15.
Shown in Figure 2 is the structural principle frame of the utility model, wherein:
IN1: gas pedal acceleration/position signal, through regulating the signal that the engine fuel supply amount is controlled engine speed (power).Tentative 6 grades, acceleration: A0-A5, position: W0-W5; Digital quantity or analog amount are provided by sensor special.
IN2: engine rotational speed signal, engine speed are 0-3000r/min, and corresponding S0-S5 takes out from engine speed indicator, and analog amount needs HR high resistance to isolate.
IN3: Vehicle Speed signal; Vehicle Speed is pressed 0-60KM/h temporarily and is provided with, corresponding V0-V5; Take out from speedometer, analog amount needs HR high resistance to isolate.
IN4: gas holder pressure signal: switching value, two groups: 1, upper limit pressure P 1,2, threshold pression P2.
IN5: gearbox gear signal: switching value, B0-B5.
OUT1: the bypass valve control signal, switching value is controlled opening/closing of bypass valve.
OUT2: the aeration valve control signal, switching value is controlled opening/closing of aeration valve.
OUT3-5: spare control signal, switching value (not shown).
The working procedure of the utility model is:
Original state: gas holder air pressure is normal, aeration valve 14 is closed, bypass valve cuts out, accelerator pedal signal A=0, W=0 ....
Engine ignition: the starting ignition switch, aeration valve 14 is opened, after aeration valve is opened; Pressurized air in the gas holder (about 130 grams of quality; Be roughly equal to following 100 liters of normal pressure), in engine intake manifold, replenish rapidly, guarantee the air inlet demand of motor first few work cycle; Start the pressurized air of coming with auxilliary pressurized machine, replenish through gas holder endlessly.Engine start, the air displacement of engine start is enough to start auxiliary turbine work; Auxiliary turbine starts subsequently, and auxiliary turbine links to each other with auxilliary pressurized machine is coaxial → → auxilliary pressurized machine proper functioning, assist the wheel of calming the anger of pressurized machine; With air suction from auxilliary suction tude, be pressed into endlessly gas holder → → check valve opens, when the air pressure of auxilliary pressurized machine output during greater than the air pressure of gas holder; Check valve is opened; To gas holder inflation → → the gas holder inflation, before aeration valve was closed, gas holder used as buffer.After aeration valve is closed, in the gas holder air pressure raise gradually → → engine idle, through the start up period after; Motor can be stable with minimum speed (idling) operation → → aeration valve 14 closes, during the engine idle operation, because the minimizing of fuel delivery and the rising of cylinder temperature; Air fuel ratio and combustion case all in the reasonable scope, but need not tonifying Qi also proper functioning → → gas holder 13 air pressure raise, after aeration valve 14 is closed; Auxilliary pressurized machine 9 air compressed also are pressed into gas holder endlessly, and the air pressure of gas holder is raise, and at this moment should suitably open bypass valve; Make the tail gas " bypass " that drives auxiliary turbine fall a part, can alleviate the working load of auxilliary turbosupercharger group, increase the service life → bypass valve 7 opens; After gas holder air pressure reached certain value, tonifying Qi that gas-storing capacity can satisfy motor when quickening was required, can be progressively until opening bypass valve fully; → → check valve 11 is closed, and the unlatching of bypass valve makes auxilliary turbosupercharger break away from the high pressure ratio working area; Auxilliary pressurized machine delivery pressure descends, and gas holder air pressure is higher than auxilliary pressurized machine delivery pressure, and check valve closes naturally → → gas holder 13 air pressure are normal → → motor continues idle.
Motor quickens: gas pedal is stepped on; The moment of gas pedal action; Can send one group of electrical signal; Be respectively applied for open aeration valve 14 carry out tonifying Qi and be used to close bypass valve 7 for auxiliary turbine raise speed → → aeration valve 14 opens → → motor quickens → → auxiliary turbine 8 quickens → → auxilliary pressurized machine 9 acceleration work → → check valve 11 opens → → gas holder 13 inflations → → the motor speed stabilizing → → aeration valve 14 closes the moment that aeration valve is closed, the duration of just opening; The accekeration A and the final position value W that depend on gas pedal; → → gas holder 13 air pressure raise → → bypass valve 7 opens, when bypass valve reaches appropriate value in engine speed, must progressively open; On the one hand the auxilliary stack of protection avoids the hypervelocity overload, avoid on the other hand influencing the motor proper functioning → → check valve (11) closes → → gas holder 13 air pressure are normal → → motor continues the stable speed operation.
Though it is obvious that supercharging technology of the prior art reduces the effect of discharging, power source is very big problem.Usually adopt two kinds of power source: A, electric boosters to utilize vehicle power, this is unconventional consumption on-vehicle battery.Public transit vehicle particularly, because the restriction of operating conditions, battery pack own is just than being easier to " power shortage ".So long-term the use can be shortened battery life even influenced vehicle driving safety.Go back the life period delay problem simultaneously.B, to deposit the gas tank tonifying Qi be to utilize motor to drive compressor operating, and power that like this certainly will consumption of engine increases oil consumption.Because the rotation speed change scope of engine operation is very big, the coupling of compressor and motor is also difficult simultaneously.
And the utility model is integrated the little and simple advantage of electric booster gas supplementary structure of gas holder tonifying Qi hysteresis; Taked on former waste gas exhaust pipe, to increase changeable small-sized exhaust-gas turbocharger has been installed; This small-sized exhaust-gas turbocharger utilizes exhaust gas-driven turbine, and pressurized machine can be the gas that motor provides capacity when engine low rotation speed, breaks away from automatically during high engine speeds; Do not influence the motor proper functioning, do not need extra energy resource supply yet.
And the working state of the tonifying Qi of the utility model also changes to some extent: tonifying Qi mode in the past is divided into lasting relatively tonifying Qi and moment tonifying Qi, and A, electric booster are to continue tonifying Qi, the hysteresis quality that it exists electric motor starting to bring relatively.Continuing the tonifying Qi time simultaneously must be very short, otherwise the battery pack burden is too heavy.B, gas holder tonifying Qi are the moment tonifying Qi, have hysteresis quality hardly, but it belongs to static tonifying Qi basically, and source of the gas is in time replenished very difficulty, have the relatively poor problem of sustainability.The compressor coupling is difficult simultaneously.
The utility model is got the advantage of A and B scheme, can the moment tonifying Qi, can also continue tonifying Qi as required, and these 2 is indispensable key factor.More crucial is the deadly defect that has overcome A and B scheme, has solved " power source " problem.
According to the laboratory data of the utility model, diesel engine moment acceleration mode reduces more than 50% oil consumption energy-conservation 8% after using the dynamic making-up air device of turbo-charging diesel motor than former engine emission.
The just embodiment of describing in the above specification of the utility model; The various fleshes and bloods that illustrate not the utility model constitute restriction; Under the those of ordinary skill of technical field after having read specification can to before described embodiment make an amendment or be out of shape, and do not deviate from the essence and the scope of model utility.
Claims (6)
1. the dynamic making-up air device of turbo-charging diesel motor comprises the main turbosupercharger that is connected with the engine exhaust outlet pipe, it is characterized in that: also be provided with the auxilliary turbosupercharger of connecting with main turbosupercharger on the described engine exhaust outlet pipe; Described auxilliary turbosupercharger comprises coaxial continuous auxiliary turbine (8) and auxilliary pressurized machine (9), and the steam outlet pipe of described auxilliary pressurized machine (9) is connected with engine intake manifold (15) through gas holder (13); Be in parallel installed with electronic bypass valve (7) on the described auxiliary turbine (8); Be provided with electronic aeration valve (14) between described gas holder (13) and the engine intake manifold (15).
2. the dynamic making-up air device of a kind of turbo-charging diesel motor as claimed in claim 1 is characterized in that: described auxilliary turbosupercharger is gas holder inflation by exhaust gas drive when engine idle.
3. the dynamic making-up air device of a kind of turbo-charging diesel motor as claimed in claim 1; It is characterized in that: also comprise central unit, described central unit is gathered gas pedal acceleration/position signal, Vehicle Speed signal, engine rotational speed signal, gas holder pressure signal, gearbox gear signal and engine ignition switch signal respectively through a plurality of sensors; And through to the unlatching of electronic bypass valve of the analysis and Control of above-mentioned signal (7) and electronic aeration valve (14) or close.
4. the dynamic making-up air device of a kind of turbo-charging diesel motor as claimed in claim 1 is characterized in that: on the steam outlet pipe of described auxilliary pressurized machine (9), the place, air outlet of closely auxilliary pressurized machine is provided with check valve.
5. the dynamic making-up air device of a kind of turbo-charging diesel motor as claimed in claim 1 is characterized in that: the gas holder pressure gauge (16) of measuring and showing gas holder pressure is installed on the described gas holder (13).
6. the dynamic making-up air device of a kind of turbo-charging diesel motor as claimed in claim 1 is characterized in that: the steam outlet pipe of described auxiliary turbine is provided with first order baffler (17) and second level baffler (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202082506U CN202108584U (en) | 2011-06-20 | 2011-06-20 | Dynamic gas supply device of a turbo supercharging diesel motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202082506U CN202108584U (en) | 2011-06-20 | 2011-06-20 | Dynamic gas supply device of a turbo supercharging diesel motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108584U true CN202108584U (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202082506U Expired - Fee Related CN202108584U (en) | 2011-06-20 | 2011-06-20 | Dynamic gas supply device of a turbo supercharging diesel motor |
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| CN (1) | CN202108584U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242668A (en) * | 2011-06-20 | 2011-11-16 | 常州天大龙成节能环保科技有限公司 | Dynamic air supplying device of turbocharged diesel engine |
| CN104500213A (en) * | 2014-10-27 | 2015-04-08 | 浙江大学 | Compressed air recycling and supplying system and method of turbo supercharged engine |
| WO2015143741A1 (en) * | 2014-03-27 | 2015-10-01 | 天津大学 | Systematic device for controlling combustion noise of common rail engine in transient operating conditions |
| CN106555711A (en) * | 2015-09-29 | 2017-04-05 | 长城汽车股份有限公司 | Electromotor supplementing method for air |
| CN108443009A (en) * | 2015-07-24 | 2018-08-24 | 吴红平 | Grass trimmer with exhaust gas turbocharge auxiliary device |
| CN108798905A (en) * | 2015-07-24 | 2018-11-13 | 丁永新 | Power loosens the grass trimmer weakened immediately with accelerator control device |
| CN114810373A (en) * | 2017-07-10 | 2022-07-29 | 康明斯公司 | Integrated auxiliary air system for heavy duty engines |
-
2011
- 2011-06-20 CN CN2011202082506U patent/CN202108584U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242668A (en) * | 2011-06-20 | 2011-11-16 | 常州天大龙成节能环保科技有限公司 | Dynamic air supplying device of turbocharged diesel engine |
| WO2015143741A1 (en) * | 2014-03-27 | 2015-10-01 | 天津大学 | Systematic device for controlling combustion noise of common rail engine in transient operating conditions |
| CN104500213A (en) * | 2014-10-27 | 2015-04-08 | 浙江大学 | Compressed air recycling and supplying system and method of turbo supercharged engine |
| CN108443009A (en) * | 2015-07-24 | 2018-08-24 | 吴红平 | Grass trimmer with exhaust gas turbocharge auxiliary device |
| CN108798905A (en) * | 2015-07-24 | 2018-11-13 | 丁永新 | Power loosens the grass trimmer weakened immediately with accelerator control device |
| CN106555711A (en) * | 2015-09-29 | 2017-04-05 | 长城汽车股份有限公司 | Electromotor supplementing method for air |
| CN106555711B (en) * | 2015-09-29 | 2019-03-12 | 长城汽车股份有限公司 | Engine supplementing method for air |
| CN114810373A (en) * | 2017-07-10 | 2022-07-29 | 康明斯公司 | Integrated auxiliary air system for heavy duty engines |
| CN114810373B (en) * | 2017-07-10 | 2023-11-07 | 康明斯公司 | Integrated auxiliary air system for heavy duty engines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20140620 |
|
| EXPY | Termination of patent right or utility model |