CN202073647U - Device for Improving Acceleration Performance and Soot Emission of Diesel Engine - Google Patents
Device for Improving Acceleration Performance and Soot Emission of Diesel Engine Download PDFInfo
- Publication number
- CN202073647U CN202073647U CN 201120181584 CN201120181584U CN202073647U CN 202073647 U CN202073647 U CN 202073647U CN 201120181584 CN201120181584 CN 201120181584 CN 201120181584 U CN201120181584 U CN 201120181584U CN 202073647 U CN202073647 U CN 202073647U
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- China
- Prior art keywords
- control unit
- diesel engine
- air
- air nozzle
- electrical control
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- Expired - Fee Related
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- 230000001133 acceleration Effects 0.000 title claims abstract description 20
- 239000004071 soot Substances 0.000 title abstract description 4
- 239000000446 fuel Substances 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 239000000779 smoke Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The utility model relates to a device for improving the acceleration performance and soot emission of a diesel engine, which comprises an electric control unit, and an accelerator pedal position sensor, an engine speed sensor, a camshaft position sensor, an air inlet pipe air flow meter and a fuel flow meter which are electrically connected with the electric control unit, wherein the electric control unit is also connected with an electromagnetic clutch and a high-pressure gas storage tank, and a pressure sensor is arranged in the high-pressure gas storage tank; an air nozzle is arranged on the cylinder cover of the diesel engine, the air nozzle is communicated with a high-pressure air storage tank, and the air nozzle is electrically connected with an electric control unit. The utility model discloses can be used to reform transform with the diesel engine and new diesel engine development, original configuration can be utilized to electrical control unit and sensor, and the cost is lower relatively, and acceleration time shortens 80% ~ 90%, and soot discharges and reduces 30% ~ 40%.
Description
Technical field
The utility model relates to Diesel Engine Technique Field, especially a kind of device that improves diesel engine acceleration performance and carbon smoke exhaust.
Background technique
The modern diesel engine accelerating process is by strengthening fuel injection quantity, promote torque output, obtain good acceleration performance, but cylinder intake air quantity increasing slowly in the accelerating process, causes the deterioration of burning.Oil mass increases soon during acceleration, and then acceleration is good, but carbon smoke exhaust is many; If the control oil mass increases, then acceleration variation, particularly turbo-charged diesel, the increase of air inflow lags behind obviously, has influenced acceleration performance, and carbon smoke exhaust increases sharply.Study the raising acceleration performance and reduce the soot problem from restriction fuel delivery and the instantaneous air demand of increase by two aspects both at home and abroad at present.Carry out the Injection Pump governor control characteristics from restriction oil mass aspect and adjust, reduce the fuel delivery when quickening, but the improper acceleration that can influence automobile of the adjustment of fuel injection quantity.Be pressurization system research on the other hand, the transient response of pressurization system, Flow characteristics and efficient all can influence the problem of smoldering of automobile, main method concentrates on the rotary inertia that reduces turbosupercharger both at home and abroad, dwindle the turbine nozzle area, the variable cross section pressurized machine, adopt combined supercharging device system, directly carry out the inject high pressure air, the interior tonifying Qi of suction tude etc. to compressor impeller.But these schemes all exist such as deficiencies such as mechanism's complexity, motor cost roll up.
The model utility content
The technical problems to be solved in the utility model is: provide a kind of diesel engine that makes to realize the air increment that is complementary with the fuel oil increase when quickening, improve burning, improving acceleration performance simultaneously, reduce the device of carbon smoke exhaust.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of device that improves diesel engine acceleration performance and carbon smoke exhaust, comprise ECU (Electrical Control Unit) and the accelerator pedal position sensor that is electrically connected with ECU (Electrical Control Unit), engine rotation speed sensor, CMPS Camshaft Position Sensor, suction tude Air flow meter and fuel flowmeter, described ECU (Electrical Control Unit) also is connected with magnetic clutch and high pressure tank, in the described high pressure tank pressure transducer is installed; Cylinder of diesel engine covers air nozzle is installed, and described air nozzle is communicated with high pressure tank, and air nozzle is electrically connected with ECU (Electrical Control Unit).Described air nozzle is an electromagnetic valve type.
The method that the utility model improves diesel engine acceleration performance and carbon smoke exhaust is: in diesel engine accelerating, compression stroke behind IC Intake Valve Closes, before the fuel injection, air nozzle (being installed on the cylinder head) is air-flow (eddy current) moving direction in cylinder, by fan-shaped or conical nozzle, the an amount of pressurized air that will be higher than cylinder pressure 0.2～0.3MPa sprays into cylinder, in time increase air quantity, fuel oil increase during with acceleration is complementary, promote mixed combustion, improve acceleration performance, reduce carbon smoke exhaust.Only when accelerating mode, adopt the method.
The beneficial effects of the utility model are, solved the defective that exists in the background technique, the independently air increase method of working, realize device and other air inlet system mutual noninterferences of this method, be used in diesel engine transformation and new diesel engine exploitation, ECU (Electrical Control Unit) and sensor can utilize original configuration, and cost is relatively low, time for acceleration shortens 80%～90%, and carbon smoke exhaust reduces by 30%～40%.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an apparatus structure theory diagram of the present utility model.
Embodiment
With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, accelerator pedal sensor perception signal for faster, the suction tude Air flow meter detects air flow rate signal when quickening, and the oil meter measuring device detects the fuel consumption that increases sharply, and passes to ECU (Electrical Control Unit).ECU (Electrical Control Unit) is calculated air excess factor when quickening according to air mass flow, fuel flow, and compares with excess air coefficient desired value 4～5, calculates the air quantity of the required postinjection of every circulation.ECU (Electrical Control Unit) is according to CMPS Camshaft Position Sensor simultaneously, determine that the air jet initial point (can be according to the port timing of different diesel engines, after being chosen at valve-closing, a certain moment of budc, this moment, cylinder pressure can be thought a steady state value as the air jet initial point).Air pressure pump is by Diesel Driven, and the pressurized air of generation enters gas holder after cooling, and the pressure of gas holder remains on the cylinder pressure 0.2～0.3MPa that is higher than beginning of injection.Because compressed air pressure and inner pressure of air cylinder difference are steady state values, the air quantity of injection only depends on discharge time, and ECU (Electrical Control Unit) is calculated discharge time according to the air flow meter that need spray, and sends pulse signal to air nozzle.Air nozzle is an electromagnetic valve type, accepts the pulse signal that computer sends, the time that pulsewidth decision is opened, i.e. what of air jet amount.After accelerator pedal began to quicken 10～12 seconds, air jet system quit work.
Diesel engine drives air pressure pump by magnetic clutch, and the pressure transducer in the gas holder is given ECU (Electrical Control Unit) pressure signal transmission, and ECU (Electrical Control Unit) guarantees that according to the clutch of pressure signal decision magnetic clutch the pressure of gas holder is a steady state value.The selected principle of air jet initial point is far away as far as possible apart from top dead center, and this moment, inner pressure of air cylinder was lower, can reduce keep-uping pressure of gas holder, reduced the diesel engine wasted work.
What describe in the above specification is embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, the person of an ordinary skill in the 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 (2)
1. device that improves diesel engine acceleration performance and carbon smoke exhaust, it is characterized in that: comprise ECU (Electrical Control Unit) and the accelerator pedal position sensor that is electrically connected with ECU (Electrical Control Unit), engine rotation speed sensor, CMPS Camshaft Position Sensor, suction tude Air flow meter and fuel flowmeter, described ECU (Electrical Control Unit) also is connected with magnetic clutch and high pressure tank, in the described high pressure tank pressure transducer is installed; Cylinder of diesel engine covers air nozzle is installed, and described air nozzle is communicated with high pressure tank, and air nozzle is electrically connected with ECU (Electrical Control Unit).
2. the device that improves diesel engine acceleration performance and carbon smoke exhaust as claimed in claim 1 is characterized in that: described air nozzle is an electromagnetic valve type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120181584 CN202073647U (en) | 2011-05-31 | 2011-05-31 | Device for Improving Acceleration Performance and Soot Emission of Diesel Engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120181584 CN202073647U (en) | 2011-05-31 | 2011-05-31 | Device for Improving Acceleration Performance and Soot Emission of Diesel Engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073647U true CN202073647U (en) | 2011-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120181584 Expired - Fee Related CN202073647U (en) | 2011-05-31 | 2011-05-31 | Device for Improving Acceleration Performance and Soot Emission of Diesel Engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202073647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278239A (en) * | 2011-05-31 | 2011-12-14 | 常州机电职业技术学院 | Method and device for improving acceleration performance and soot emission of diesel engine |
-
2011
- 2011-05-31 CN CN 201120181584 patent/CN202073647U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278239A (en) * | 2011-05-31 | 2011-12-14 | 常州机电职业技术学院 | Method and device for improving acceleration performance and soot emission of diesel engine |
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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: 20111214 Termination date: 20150531 |
|
| EXPY | Termination of patent right or utility model |