CN206274285U - A kind of experiment porch suitable for dual fuel engine - Google Patents
A kind of experiment porch suitable for dual fuel engine Download PDFInfo
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- CN206274285U CN206274285U CN201621423427.3U CN201621423427U CN206274285U CN 206274285 U CN206274285 U CN 206274285U CN 201621423427 U CN201621423427 U CN 201621423427U CN 206274285 U CN206274285 U CN 206274285U
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Abstract
The utility model discloses a kind of experiment porch suitable for dual fuel engine, including the Diesel engine and its single intake and exhaust, fuel oil supply system that multi-cylinder is changed to single cylinder；Wherein air inlet system and exhaust system mainly include：Air compressor, inlet air flow gauge, air vacuum tank, air intake heater, charge air cooler, EGR valve, cooler for recycled exhaust gas, exhaust backpressure valve；Fuel system includes：Nitrogen cylinder, high voltage stabilizing tank, pressure regulator valve, GDI fuel injectors, diesel oil oil pump, oily rail and diesel injector；Acquisition system：Cylinder pressure sensor, photoelectric encoder, temperature sensor, pressure sensor.The utility model can be by the intake air temperature of precise control engine, pressure, EGR rate and gaseous mixture activity in cylinder；The interference between Multi-Cylinder Diesel Engine middle cylinder and cylinder is eliminated, device simple is easy for installation, and strong operability, controllable parameter is more.
Description
Technical field
The utility model belongs to alcohol-ether fuel clean energy technology field, more particularly to a kind of to be applied to research double fuel hair
The experiment porch of motivation.
Background technology
In recent years, the most important thing of the engine research task as human economic development of more low emission, higher efficiency.Directly
Spray combustion engine (Diesel engine) turns into the optimal power source of highway communication with its high thermal efficiency.In order that obtaining diesel oil
Machine realizes lower nitrogen oxides and soot emissions, while also reaching efficiency higher, many new combustion modes are gradually by state
Inside and outside researcher proposes.Wherein RCCI (Reactivity controlled compression ignition) combustion mode is led to
Cross spray into that octane number is higher in air intake duct and fuel oil that Cetane number is relatively low (such as：Gasoline, methane, butanol), collocation diesel oil is straight
The control of strategy is sprayed, the layering of the gaseous mixture activity set up in cylinder so can be under the collocation of low EGR rate, by adjustment
The mixed proportion of the height active fuel under different load so that in-cylinder combustion is presented sequential combustion, i.e. activity diesel oil higher
(Cetane number is high) spontaneous combustion, then flame is gradually extended to the relatively low region (octane number is higher) of activity and timing of combustion is maintained
In near top dead center, there is experiment to prove this combustion mode, can reach cause nitrogen oxygen in the case of not using after-treatment device
Compound and soot reduce to obtain indicated thermal efficiency increase simultaneously.
But during real engine platform experiment, the influence factor for engine cylinder fuel combustion is too many,
Particularly it is pressurized multicylinder engine.Such as：Intake air temperature and admission pressure, the two parameters directly affect the inflation effect of engine
Rate, the charging efficiency between cycle of engine and circulation has differences will cause the data fluctuations obtained by experiment big.Additionally, right
In the fuel oil of intake port injection, current most of control pressures taken are 0.3Mpa, in high load capacity, in particular for bigger
Intake port injection amount of fuel when, the too low and less angle of apray of fuel pressure will cause to be formed uniform gaseous mixture and
Mixed proportion higher, causes more fuel oils to be attached in air inlet pipe and does not enter into cylinder participation burning, therefore theoretical meter
The result of calculation is larger with experimental data difference, influences the conclusion of research.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of experiment porch suitable for dual fuel engine, this
Experiment porch has the intake manifold injection device of higher pressure and with the controllable single cylinder diesel of air-suction state parameter.This practicality
It is new can by the intake air temperature of precise control engine, pressure, EGR rate and in cylinder gaseous mixture activity.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of experiment porch suitable for dual fuel engine, air compressor, gas vacuum tank, air intake heater, electricity
Dynamic by-passing valve, inlet air flow gauge, charge air cooler, the inlet manifold of test cylinder (jar) are sequentially connected, and the discharge manifold of test cylinder (jar) is successively
It is connected between inlet air flow gauge and the air flue of charge air cooler by EGR valve, cooler for recycled exhaust gas, discharge manifold is also passed sequentially through
Exhaust backpressure valve, exhaust sampling valve are connected to tails assay instrument；
Nitrogen pot, one-level pressure regulator valve, second voltage regulation valve, high voltage stabilizing tank, pressure regulator valve, GDI fuel injectors are sequentially connected, described
GDI fuel injectors are connected to inlet manifold；Direct-injection fuel injector is additionally provided with test cylinder (jar)；
The GDI fuel injectors, direct-injection fuel injector are all connected to ECU, and the ECU is connected to computer；
Inlet air flow gauge gas outlet is provided with air temperature sensor, air pressure probe, goes out in charge air cooler
Gas port is provided with intake air temperature sensor, air inlet pressure sensor, and exhaust backpressure valve air inlet is provided with delivery temperature sensing
Device, back pressure transducer, the air pressure probe, intake air temperature sensor, air inlet pressure sensor, delivery temperature are passed
Sensor, back pressure transducer are all connected to NI capture cards；
Photoelectric encoder and cylinder pressure sensor are provided with test cylinder (jar), the photoelectric encoder is connected to NI capture cards；Institute
State cylinder pressure sensor and NI capture cards are connected to by charge amplifier, NI capture cards are connected to computer.
According to such scheme, the GDI fuel injectors are installed in air inlet pipe, the inlet valve upstream of its distance test (DT) cylinder
0.45m, and be 30 ° with horizontal angle.
According to such scheme, the cylinder pressure sensor is arranged on test cylinder (jar) cylinder cap and stretches into engine chamber, passes through
Timing is triggered with the photoelectric encoder that engine flywheel is axially connected, every 0.5 ° of crank angle gathers a signal.
Compared with prior art, the beneficial effects of the utility model are：1) built by air compressor and gas vacuum tank
Vertical stabilization and adjustable admission pressure, then the regulation of intake air temperature is realized by air intake heater, EGR rate is carried on the back by being vented in addition
Pressure valve realizes continuous regulation, and maximum can reach 70%；2) the 3MPA pressure of stabilization is provided by nitrogen pot, is adjusted by one-level
Pressure valve is adjusted to the fuel pressure in high voltage stabilizing tank, then by the GDI fuel injectors being installed in air inlet pipe spurt into
Tracheae mixes with engine fresh air；3) temperature, pressure sensor, cylinder pressure sensor pass through photoelectric encoder trigger signal,
Every 0.5 ° of crank angle gathers a secondary data so that the state parameter of the whole circulation of engine obtains the monitoring at moment；4) arrange
Except the interference between Multi-Cylinder Diesel Engine middle cylinder and cylinder, to the fired state in research alcohol ether dual fuel engine cylinder, with equipment letter
Easily, it is easy for installation, strong operability, the advantages of controllable parameter is more.
Brief description of the drawings
Fig. 1 is a kind of structural representation of experiment porch suitable for dual fuel engine of the utility model.
In figure：1- air compressors；2- gas vacuum tanks；3- air intake heaters；The electronic by-passing valves of 4-；5- charge flow rates
Meter；6- charge air coolers；7- inlet manifolds；8- discharge manifolds；9-EGR (Exhaust Gas Recycling, exhaust gas recirculatioon)
Valve；10-EGR coolers；11- exhaust backpressure valves；12- exhaust sampling valves；13- tails assay instruments；14- nitrogen pots；15- one-levels
Pressure regulator valve；16- second voltage regulation valves；17- high voltage stabilizing tanks；18- pressure regulator valves；19-GDI(Gasoline Direct
Injection, gasoline direct projection) fuel injector；20- direct-injection fuel injectors；21-ECU (Electronic Control Unit, electronics control
Unit processed)；22- air temperature sensor；23- air pressure probes；24- intake air temperature sensor；25- admission pressures are sensed
Device；26- exhaust gas temperature sensors；27- back pressure transducers；28- photoelectric encoders；29- cylinder pressure sensors；30- electric charges are put
Big device；31-NI capture cards；32- computers.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, the utility model includes：It is installed in air inlet pipe, the air compression in the upstream of gas vacuum tank 2
The air intake heater 3 in machine 1 and downstream, initially sets up the air with uniform temperature and pressure of stabilization, is connected with air inlet pipe
Electronic by-passing valve 4 adjusts the pressure in air inlet pipe and flow, inlet air flow gauge 5, Air Temperature by the opening and closing of valve
Degree sensor 22, air pressure probe 23 are monitored to the flow of air inlet air in tube, temperature, pressure.
Exhaust backpressure valve 11 in blast pipe ensures EGR by adjusting its aperture to control exhaust back pressure can normally be drawn
Enter air inlet pipe, the aperture of EGR valve 9 controls EGR rate, and cooler for recycled exhaust gas 10 and charge air cooler 6 are mixed to EGR and EGR with air gas
Close gas to be cooled down, 25 pairs of temperature and pressures now of intake air temperature sensor 24 and air inlet pressure sensor are monitored.
The nitrogen pot 14 being connected with high voltage stabilizing tank 17, by one-level pressure regulator valve 15 and second voltage regulation valve 16, realizes in height
The regulation of the internal pressure of vacuum tank 17 is pressed, the fuel oil of intake port injection is pre-added in high voltage stabilizing tank 17, by high-voltage tube
It is connected with GDI fuel injectors 19, so by adjusting the output pressure of nitrogen pot 14, it becomes possible to realize the fuel feeding pressure of GDI fuel injectors 19
The regulation of power, pressure maximum can reach 3MPA, and GDI fuel injectors 19 are installed in air inlet pipe, at inlet valve 0.45m and be in
With 30 ° of angles of horizontal line, GDI fuel injectors 19 are connected by controlling wire harness with ECU21, by the host computer procedure control in computer 32
System.
Direct-injection fuel injector 20 is former machine fuel injector, by high-pressure oil pump of engine from fuel tank pump oil, pressure is set up in oily rail
Power, direct-injection fuel injector 20 is connected by controlling wire harness with ECU21, is controlled by the host computer procedure in computer 32.Cylinder pressure sensor
29, it is installed on engine cylinder and covers, engine chamber is stretched into, after charge amplifier 30 amplifies to signal, access NI and adopt
Truck 31, photoelectric encoder 28 is axially connected with engine flywheel, and every 0.5 ° of crank angle gives NI capture cards 31 1 pulse letters
Number, the triggering for gathering signal.Temperature sensor (22,24,26), pressure sensor (23,25,27), by holding wire with
NI capture cards 31 are connected, and the trigger signal of photoelectric encoder 28 and the host computer capture program in computer 32 are acquired.Tail
Gas analytical instrument 13 is pumped into sample gas and composition is analyzed by exhaust sampling valve 12 from blast pipe, and shows reading.
Originally the utility model is better described, is below intake port injection fuel oil with butanol, with diesel oil as direct fuel injection, hair
Motivation is by taking a certain operating condition as an example：
1) butanol is previously added in high voltage stabilizing tank 17, by the output pressure for adjusting nitrogen pot 14 so that GDI fuel injectors
The 19 injection pressure with stabilization；By the Injection Control module in ECU21, emitted dose is controlled.2) diesel oil direct-injection fuel injector 20
By the Injection Control module in ECU21, its injection pressure, distributive value and injection timing are controlled.3) by adjusting electronic bypass
Valve 4, adjusts the admission pressure and air inflow of engine.4) by the heating power of air intake heater 3, intake air temperature is adjusted.5)
Monitored by air temperature sensor 22 and air pressure probe 23, whether intake air temperature and pressure maintain desired value.6)
Exhaust back pressure is adjusted by adjusting exhaust backpressure valve 11, the regulation EGR introduction volumes of EGR valve 9, EGR is cooled down by cooler for recycled exhaust gas 10
Afterwards, mix with air into air inlet pipe, again pass by charge air cooler 6, if changing little in mixed temperature, enter air cooling
But device 6 is not worked, and after EGR causes intake air temperature to rise, charge air cooler 6 is started working.7) He of intake air temperature sensor 24
25 pairs of mixture temperatures being mixed into after EGR of air inlet pressure sensor and pressure are monitored.8) after engine brings into operation, flywheel
Drive photoelectric encoder 28 to start to rotate, after NI capture cards 31 obtain trigger signal, start to gather cylinder with every 0.5 ° of crank angle
The cylinder pressure signal of the output of pressure sensor 29, at the same time, intake air temperature, pressure, delivery temperature, pressure are equally gathered.9)
Tails assay instrument 13 is pumped into sample gas and composition is analyzed by exhaust sampling valve 12 from blast pipe, and shows the number of degrees.
Claims (3)
1. a kind of experiment porch suitable for dual fuel engine, it is characterised in that
Air compressor (1), gas vacuum tank (2), air intake heater (3), electronic by-passing valve (4), inlet air flow gauge (5), enter
Gas Cooler (6), the inlet manifold (7) of test cylinder (jar) are sequentially connected, the discharge manifold (8) of test cylinder (jar) pass sequentially through EGR valve (9),
Cooler for recycled exhaust gas (10) is connected between the air flue of inlet air flow gauge (5) and charge air cooler (6), and discharge manifold (8) also leads to successively
Cross exhaust backpressure valve (11), exhaust sampling valve (12) and be connected to tails assay instrument (13)；
Nitrogen pot (14), one-level pressure regulator valve (15), second voltage regulation valve (16), high voltage stabilizing tank (17), pressure regulator valve (18), GDI sprays
Oily device (19) is sequentially connected, and the GDI fuel injectors (19) are connected to inlet manifold (7)；Direct-injection oil spout is additionally provided with test cylinder (jar)
Device (20)；
The GDI fuel injectors (19), direct-injection fuel injector (20) are all connected to ECU (21), and the ECU (21) is connected to computer
(32)；
Inlet air flow gauge (5) gas outlet is provided with air temperature sensor (22), air pressure probe (23), enters air cooling
But device (6) gas outlet is provided with intake air temperature sensor (24), air inlet pressure sensor (25), in exhaust backpressure valve (11) air inlet
Mouth is provided with exhaust gas temperature sensor (26), back pressure transducer (27), the air pressure probe (23), intake air temperature
Sensor (24), air inlet pressure sensor (25), exhaust gas temperature sensor (26), back pressure transducer (27) are all connected to NI
Capture card (31)；
Photoelectric encoder (28) and cylinder pressure sensor (29) are provided with test cylinder (jar), the photoelectric encoder (28) is connected to NI and adopts
Truck (31)；The cylinder pressure sensor (29) is connected to NI capture cards (31), NI capture cards (31) by charge amplifier (30)
It is connected to computer.
2. a kind of experiment porch suitable for dual fuel engine as claimed in claim 1, it is characterised in that the GDI sprays
Oily device (19) is installed in air inlet pipe, the inlet valve upstream 0.45m of its distance test (DT) cylinder, and is 30 ° with horizontal angle.
3. a kind of experiment porch suitable for dual fuel engine as claimed in claim 1, it is characterised in that the cylinder pressure is passed
Sensor (29) is on test cylinder (jar) cylinder cap and stretches into engine chamber, is compiled by with the photoelectricity that engine flywheel is axially connected
Code device (28) triggering timing, every 0.5 ° of crank angle gathers a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621423427.3U CN206274285U (en) | 2016-12-23 | 2016-12-23 | A kind of experiment porch suitable for dual fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621423427.3U CN206274285U (en) | 2016-12-23 | 2016-12-23 | A kind of experiment porch suitable for dual fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206274285U true CN206274285U (en) | 2017-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621423427.3U Expired - Fee Related CN206274285U (en) | 2016-12-23 | 2016-12-23 | A kind of experiment porch suitable for dual fuel engine |
Country Status (1)
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525678A (en) * | 2017-09-20 | 2017-12-29 | 西华大学 | A kind of internal combustion engine cooler for recycled exhaust gas particulate matter deposition path simulation test device and method |
| CN107560863A (en) * | 2017-09-18 | 2018-01-09 | 武汉理工大学 | A kind of dual fuel engine testing stand for performance test peculiar to vessel and method |
| CN107576507A (en) * | 2017-11-02 | 2018-01-12 | 西华大学 | The optical engine visualization system and its analogy method of simulation activity control compression ignition |
| CN107884199A (en) * | 2017-12-01 | 2018-04-06 | 西华大学 | A kind of single-cylinder engine platform experiment system and its control method for carrying towing astern function |
| CN108254196A (en) * | 2017-12-08 | 2018-07-06 | 中国北方发动机研究所(天津) | Cold start single cylinder engine test platform under a kind of simulated high altitude environment |
| CN108519237A (en) * | 2018-04-26 | 2018-09-11 | 吉林大学 | A kind of test system measuring air-charging efficiencies of different cylinders for multi-cylinder internal combustion engine |
| CN109883718A (en) * | 2019-03-29 | 2019-06-14 | 天津大学 | Single cylinder diesel engine bench test system based on integrated cylinder cover multi-cylinder diesel engine |
| CN110207993A (en) * | 2019-04-30 | 2019-09-06 | 天津大学 | A kind of pilot system of double fuel single-cylinder engine machine frame |
| CN110206661A (en) * | 2019-04-30 | 2019-09-06 | 天津大学 | A kind of dual fuel engine single cylinder engine test platform pressurized fuel gas feed system |
| CN110398372A (en) * | 2019-07-16 | 2019-11-01 | 上海理工大学 | Optic visualization combustion system for engine |
| CN110645105A (en) * | 2019-09-11 | 2020-01-03 | 奇瑞汽车股份有限公司 | Engine |
| CN110821722A (en) * | 2019-11-22 | 2020-02-21 | 江苏大学 | Intake charge heating device of diesel/alcohol binary fuel engine and control method |
| CN112963861A (en) * | 2021-03-11 | 2021-06-15 | 哈尔滨工业大学 | Dual-fuel precooler with distributable heat exchange area |
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- 2016-12-23 CN CN201621423427.3U patent/CN206274285U/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560863A (en) * | 2017-09-18 | 2018-01-09 | 武汉理工大学 | A kind of dual fuel engine testing stand for performance test peculiar to vessel and method |
| CN107525678A (en) * | 2017-09-20 | 2017-12-29 | 西华大学 | A kind of internal combustion engine cooler for recycled exhaust gas particulate matter deposition path simulation test device and method |
| CN107525678B (en) * | 2017-09-20 | 2023-08-29 | 西华大学 | Device and method for simulating particulate matter deposition path of EGR cooler of internal combustion engine |
| CN107576507A (en) * | 2017-11-02 | 2018-01-12 | 西华大学 | The optical engine visualization system and its analogy method of simulation activity control compression ignition |
| CN107576507B (en) * | 2017-11-02 | 2024-04-02 | 西华大学 | Optical engine visualization system for simulating active control compression ignition and simulation method thereof |
| CN107884199B (en) * | 2017-12-01 | 2023-08-29 | 西华大学 | Single-cylinder engine bench experiment system with reverse towing function and control method thereof |
| CN107884199A (en) * | 2017-12-01 | 2018-04-06 | 西华大学 | A kind of single-cylinder engine platform experiment system and its control method for carrying towing astern function |
| CN108254196A (en) * | 2017-12-08 | 2018-07-06 | 中国北方发动机研究所(天津) | Cold start single cylinder engine test platform under a kind of simulated high altitude environment |
| CN108519237A (en) * | 2018-04-26 | 2018-09-11 | 吉林大学 | A kind of test system measuring air-charging efficiencies of different cylinders for multi-cylinder internal combustion engine |
| CN108519237B (en) * | 2018-04-26 | 2023-09-22 | 吉林大学 | Test system for measuring inflation efficiency of each cylinder of multi-cylinder internal combustion engine |
| CN109883718A (en) * | 2019-03-29 | 2019-06-14 | 天津大学 | Single cylinder diesel engine bench test system based on integrated cylinder cover multi-cylinder diesel engine |
| CN110206661B (en) * | 2019-04-30 | 2023-07-14 | 天津大学 | High-pressure gas fuel supply system of dual-fuel engine single-cylinder engine test platform |
| CN110206661A (en) * | 2019-04-30 | 2019-09-06 | 天津大学 | A kind of dual fuel engine single cylinder engine test platform pressurized fuel gas feed system |
| CN110207993A (en) * | 2019-04-30 | 2019-09-06 | 天津大学 | A kind of pilot system of double fuel single-cylinder engine machine frame |
| CN110207993B (en) * | 2019-04-30 | 2024-04-02 | 天津大学 | Test system of dual-fuel single-cylinder engine bench |
| CN110398372A (en) * | 2019-07-16 | 2019-11-01 | 上海理工大学 | Optic visualization combustion system for engine |
| CN110398372B (en) * | 2019-07-16 | 2021-03-19 | 上海理工大学 | Optical visual combustion system for engine |
| CN110645105A (en) * | 2019-09-11 | 2020-01-03 | 奇瑞汽车股份有限公司 | Engine |
| CN110821722A (en) * | 2019-11-22 | 2020-02-21 | 江苏大学 | Intake charge heating device of diesel/alcohol binary fuel engine and control method |
| CN110821722B (en) * | 2019-11-22 | 2023-11-10 | 江苏大学 | Air inlet charge heating device of diesel/alcohol binary fuel engine and control method |
| CN112963861A (en) * | 2021-03-11 | 2021-06-15 | 哈尔滨工业大学 | Dual-fuel precooler with distributable heat exchange area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170623 Termination date: 20171223 |