CN206208531U - One kind simulation in-cylinder direct-jet experimental stand system - Google Patents
One kind simulation in-cylinder direct-jet experimental stand system Download PDFInfo
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- CN206208531U CN206208531U CN201621244773.5U CN201621244773U CN206208531U CN 206208531 U CN206208531 U CN 206208531U CN 201621244773 U CN201621244773 U CN 201621244773U CN 206208531 U CN206208531 U CN 206208531U
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- constant volume
- volume combustion
- combustion bomb
- mounting seat
- cylinder
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Abstract
The utility model discloses one kind simulation in-cylinder direct-jet experimental stand system, belong to constant volume combustion bomb visual research application field, including constant volume combustion bomb (25), it is arranged on the mounting seat (20) at the top of constant volume combustion bomb (25), it is arranged on the spark plug of mounting seat (20) base plate, the injector (24) of constant volume combustion bomb (25) side wall, heating control cabinet (7), compressed gas bottle (13), compressed air bottle (14), streak photograph system, acquisition system, control system, drain tap switchs (17) and vavuum pump (19).The utility model can be used to study the basic datas such as dynamic characteristic, mixed characteristic, firing characteristic, combustion characteristics and emission performance that air-liquid fluid fuel direct-injection is sprayed when in cylinder, for futuristic design, exploitation and optimization direct injection air-liquid fluid fuel engine provide corresponding theoretical foundation.
Description
Technical field
The utility model belongs to constant volume combustion bomb visual research application field, and in particular to one kind simulation in-cylinder direct-jet
Experimental stand system.
Background technology
Under current oil shortage of resources and the increasingly serious background of motor vehicle exhaust emission pollution problem, car engine is realized
Machine energy-saving and emission-reduction are particularly important.Further to have given play to the corresponding advantage of engine fuel, improve engine dynamic property,
Economy simultaneously improves motor vehicle exhaust emission, by direct fuel injection in contributing to realize above-mentioned target in cylinder.Current liquid fuel direct-injection
In in engine cylinder studying and with seeming commonplace, but many basic research equally to be unable to do without constant volume combustion bomb visual
Change system platform, and it is most for gaseous fuel direct injection both at home and abroad be in the experimental study stage, have based on numerical simulation
Research, have based on engine rig test, have based on means such as constant volume combustion bomb visualization system platforms.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of simulation in-cylinder direct-jet experimental stand system, for grinding
Study carefully various data and the observation of phenomenon of the air-liquid fluid fuel direct-injection in engine, be futuristic design, exploitation and optimization direct injection
Air-liquid fluid fuel engine provides corresponding theoretical foundation.
In order to solve the above technical problems, the technical scheme that is used of the utility model for：
One kind simulation in-cylinder direct-jet experimental stand system, including constant volume combustion bomb, constant volume combustion bomb top are provided with mounting seat,
Mounting seat base plate is provided with spark plug and cylinder pressure sensor, and constant volume combustion bomb left side wall is provided with injector, and rear wall is provided with
One form center, front side wall is provided with the second form center；The path that the light that light source sends passes through is followed successively by slit arrangement, first
Speculum, the first perpendicular mirrors, the first form center, the second form center, the second perpendicular mirrors, the second speculum, knife edge device are high
Fast camera；Compressed air bottle is connected with the balloon side of constant volume combustion bomb and bag type accumulator respectively by the first threeway connector
Connect, compressed gas bottle is connected by liquid capsule end of the second threeway connector respectively with injector and bag type accumulator；Fixed
Hold and be respectively equipped with firebomb drain tap switch and vavuum pump；The platform system is provided with for controlling heating constant volume combustion bomb
Heating control cabinet and the injection control plate for controlling injector；Annexation between various instruments is：Cylinder pressure sensor
Charge amplifier is connected to, charge amplifier is connected to NI capture cards, and NI capture cards are connected to computer；Multi-functional controller point
Be not connected with injection control plate, spark plug, charge amplifier, high-speed camera, computer, computer respectively with multi-functional control
Instrument, NI capture cards, high-speed camera, charge amplifier connection.
According to such scheme, the injector is connected with gripping block；The gripping block is by the different cylinder structure of two diameters
Along the circumferential direction be provided with four through holes for connecting constant volume combustion bomb outer wall into, larger diameter end cylinder, smaller diameter end cylinder with
Injector is connected, and gripping block is provided with through hole along its axial centre.
According to such scheme, the mounting seat is a circular cylindrical cavity with flange plate structure；Mounting seat bottom sets
There is base plate, top is provided with flange plate structure, flange plate structure and the constant volume combustion bomb bolt connection, the bottom of mounting seat of mounting seat
Extend constant volume combustion bomb center.
Compared with prior art, the beneficial effects of the utility model are：
One simulation in-cylinder direct-jet experimental system platform is provided, is helped further to study air-liquid fluid fuel direct-injection and is started
The foundation characteristic data such as machine cylinder internal spraying dynamic characteristic, combustion gas mixing characteristic, firing characteristic, combustion characteristics；
There is provided a kind of simulation in-cylinder direct-jet experimental system platform for being easier to and realizing, it is easy to researcher to operate and change experiment
Equipment；
Ignition system directly employs plug ignition in the utility model, instead of electrode ignition, is conducive to trueer
Plug ignition function in real simulated engine cylinder；
In the utility model, use bag type accumulator to set up goal pressure for injector is provided, adopt and obtain in this way
The target liq fueling injection pressure that arrives is relatively stable, pressure oscillation is small.
Brief description of the drawings
The specific embodiment of simulation in-cylinder direct-jet experimental stand system a kind of to the utility model is made below in conjunction with the accompanying drawings
Further illustrate, wherein：
Fig. 1 is a kind of schematic diagram for simulating in-cylinder direct-jet experimental stand system of the utility model；
Fig. 2 is a kind of position for simulating constant volume combustion bomb and schlieren system in in-cylinder direct-jet experimental stand system of the utility model
Put relation schematic diagram.
Each label is interpreted as in figure：1- light sources, 2- slit arrangements, the speculums of 31- first, the speculums of 32- second, 41-
First collimating mirror, the collimating mirrors of 42- second, 5- knife edge devices, 6- high-speed cameras, 7- heating control cabinets, 8- Multi-functional controllers,
9- computers, 10-NI capture cards, 11- charge amplifiers, 12- injection control plates, 13- compressed gas bottle, 14- compressed air bottles,
15- the first threeway connectors, 16- bag type accumulators, 17- drain taps switch, 18- vacuum pumping valve door switch, 19- vacuum
Pump, 20- mounting seats, 21- spark plugs, 22- cylinder pressure sensors, 23- compact heaps, 24- injectors, 25- constant volume combustion bombs, 26-
Two threeway connectors, the joints of 52- first, the joints of 62- second, 51- control joints, 61- computer joints.
Specific embodiment
A kind of simulation in-cylinder direct-jet experimental stand system platform of the utility model include constant volume combustion bomb 25, mounting seat 20,
Spark plug 21, injector 24, compact heap 23, heating control cabinet 7, bag type accumulator 16, streak photograph system, acquisition system and
Control system.The constant volume combustion bomb 25 is the internal spheroid with cavity, and electronic digit pressure gauge, thermocouple are provided with thereon
Deng device, top is provided with mounting seat 20, and injector 24 is additionally provided with the side wall of constant volume combustion bomb 25, with compact heap 23 by injector
24 are fixed on the side wall outside constant volume combustion bomb 25.The function of bladder accumulation of energy 16 is accumulation of energy, pressure accumulation effect, can be divided into
Balloon side and liquid capsule end, liquid capsule end are equipped with liquid fuel, can provide high pressure liquid fuel for injector 24.Pressed by cylinder and sensed
Device 22, charge amplifier 11 and NI capture cards 10 composition acquisition system, acquisition system are used to gather the inside of constant volume combustion bomb 25
Combustion pressure situation of change.By light source 1, slit arrangement 2, the first speculum 31, the second speculum 32, the first collimating mirror 41,
Two collimating mirrors 42, knife edge device 5, the composition streak photograph system of high-speed camera 6, it is various in constant volume combustion bomb 25 for observing
Data, wherein, the first joint 52 of high-speed camera is connected to the control joint 51 of Multi-functional controller 8, high-speed camera
Second joint 62 is connected to the computer joint 61 of computer 9.By 12 groups of computer 9, Multi-functional controller 8 and injection control plate
Into control system, and Multi-functional controller 8 is the control hinge of present gantries system, for the collection of Synchronization Control acquisition system, height
Fast camera 6 is taken a picture, the ignition function of spark plug 21.The heating control cabinet 7 is responsible for specially being heated for constant volume combustion bomb 25, and it can
To realize automatic control function, the target temperature set according to researcher is voluntarily controlled, adjusts heating.
A kind of simulation in-cylinder direct-jet experimental stand system platform of the utility model first will take out inside before the experiments were performed
Into vacuum, concrete operations mode is divided into following two concrete conditions：
When Study of Liquid direct fuel injection is in in-cylinder combustion, with compressed air bottle 14, the first threeway connector 15 and leather bag
Formula accumulator 16 sets up liquid fuel goal pressure jointly, is that injector 24 provides liquid fuel；By injection control plate 12
Control injector 24 carries out injection work, it is to be sprayed after the completion of, send three instructions by Multi-functional controller 8 is synchronous：Triggering line
Cylinder pressure sensor 22 starts during shadow camera chain high speed camera 6 starts to take pictures, spark plug 21 starts igniting and acquisition system
Collection pressure.After finishing an experimental study, gas in constant volume combustion bomb 25 is emptied by drain tap 17, then will by vavuum pump 19
It is evacuated inside constant volume combustion bomb 25, is to test ready work next time.
When learning gas direct fuel injection is in in-cylinder combustion, only compressed gas bottle 13 need to be communicated to injector 24 for it is carried
For object gas fuel, i.e., need not use bag type accumulator 16；Likewise, controlling injector 24 by injection control plate 12
Carry out injection work, it is to be sprayed after the completion of, send three instructions by Multi-functional controller 8 is synchronous：In triggering streak photograph system
Cylinder pressure sensor 22 starts to gather pressure during high-speed camera 6 starts to take pictures, spark plug 21 starts igniting and acquisition system.Finish
After experimental study, gas in constant volume combustion bomb 25 is emptied by drain tap 17, then by vavuum pump 19 by constant volume combustion bomb 25
Inside is evacuated, and is to test ready work next time.
Claims (3)
- It is 1. a kind of to simulate in-cylinder direct-jet experimental stand system, it is characterised in that：Including constant volume combustion bomb (25), constant volume combustion bomb (25) top is provided with mounting seat (20), and mounting seat (20) base plate is provided with spark plug (21) and cylinder pressure sensor (22), constant volume burning Bullet (25) left side wall is provided with injector (24), and rear wall is provided with the first form center, and front side wall is provided with the second form The heart；The path that light that light source (1) sends passes through is followed successively by slit arrangement (2), the first speculum (31), the first perpendicular mirrors (41), First form center, the second form center, the second perpendicular mirrors (42), the second speculum (32), knife edge device (5), high-speed photography Machine (6)；Compressed air bottle (14) by the first threeway connector (15) respectively with constant volume combustion bomb (25) and bag type accumulator (16) balloon side connection, compressed gas bottle (13) by the second threeway connector respectively with injector (24) and bladder accumulation of energy The liquid capsule end connection of device (16)；Drain tap switch (17) and vavuum pump (19) are respectively equipped with constant volume combustion bomb (25)； The platform system is provided with for controlling to heat the heating control cabinet (7) of constant volume combustion bomb (25) and for controlling injector (24) Injection control plate (12)；Annexation between various instruments is：Cylinder pressure sensor (22) is connected to charge amplifier (11), Charge amplifier (11) is connected to NI capture cards (10), and NI capture cards (10) are connected to computer (9)；Multi-functional controller (8) It is connected with injection control plate (12), spark plug (21), charge amplifier (11), high-speed camera (6), computer (9) respectively, is counted Calculation machine (9) is connected with Multi-functional controller (8), NI capture cards (10), charge amplifier (11), high-speed camera (6) respectively.
- 2. one kind according to claim 1 simulates in-cylinder direct-jet experimental stand system, it is characterised in that：The injector (24) it is connected with gripping block (23)；The gripping block (23) is made up of two different cylinders of diameter, and larger diameter end cylinder is along circle Circumferential direction is provided with four through holes for connecting constant volume combustion bomb (25) outer wall, and smaller diameter end cylinder is connected with injector (24), Gripping block (23) is provided with through hole along its axial centre.
- 3. one kind according to claim 1 simulates in-cylinder direct-jet experimental stand system, it is characterised in that：The mounting seat (20) it is a circular cylindrical cavity with flange plate structure；Mounting seat (20) bottom is provided with base plate, and top is provided with ring flange knot Structure, flange plate structure and constant volume combustion bomb (25) bolt connection of mounting seat (20), the bottom of mounting seat (20) extends constant volume combustion Burn bullet (25) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621244773.5U CN206208531U (en) | 2016-11-21 | 2016-11-21 | One kind simulation in-cylinder direct-jet experimental stand system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621244773.5U CN206208531U (en) | 2016-11-21 | 2016-11-21 | One kind simulation in-cylinder direct-jet experimental stand system |
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| Publication Number | Publication Date |
|---|---|
| CN206208531U true CN206208531U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621244773.5U Expired - Fee Related CN206208531U (en) | 2016-11-21 | 2016-11-21 | One kind simulation in-cylinder direct-jet experimental stand system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796629A (en) * | 2017-07-28 | 2018-03-13 | 天津大学 | Simulate the constant volume combustion bomb System and method for of a variety of combustion modes of Methanol/Diesel Dual Fuel Engine |
| CN107796626A (en) * | 2017-10-31 | 2018-03-13 | 浙江大学 | A kind of mounting platform and its application method for automobile engine PIV measurements |
| CN108132152A (en) * | 2018-03-13 | 2018-06-08 | 中国船舶电站设备有限公司 | A kind of spray visualization testing stand control device and its application process |
| CN108361137A (en) * | 2018-01-22 | 2018-08-03 | 哈尔滨工程大学 | A kind of engine gas injection measurement method |
| CN109946082A (en) * | 2019-03-28 | 2019-06-28 | 大连理工大学 | A kind of collection sealing, constant temperature, visually with the integrated experimental system of fast assembling-disassembling |
-
2016
- 2016-11-21 CN CN201621244773.5U patent/CN206208531U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796629A (en) * | 2017-07-28 | 2018-03-13 | 天津大学 | Simulate the constant volume combustion bomb System and method for of a variety of combustion modes of Methanol/Diesel Dual Fuel Engine |
| CN107796629B (en) * | 2017-07-28 | 2023-09-22 | 天津大学 | Constant volume combustion bomb system and method for simulating multiple combustion modes of methanol/diesel dual-fuel engine |
| CN107796626A (en) * | 2017-10-31 | 2018-03-13 | 浙江大学 | A kind of mounting platform and its application method for automobile engine PIV measurements |
| CN107796626B (en) * | 2017-10-31 | 2019-05-14 | 浙江大学 | A kind of mounting platform and its application method for automobile engine PIV measurement |
| CN108361137A (en) * | 2018-01-22 | 2018-08-03 | 哈尔滨工程大学 | A kind of engine gas injection measurement method |
| CN108132152A (en) * | 2018-03-13 | 2018-06-08 | 中国船舶电站设备有限公司 | A kind of spray visualization testing stand control device and its application process |
| CN109946082A (en) * | 2019-03-28 | 2019-06-28 | 大连理工大学 | A kind of collection sealing, constant temperature, visually with the integrated experimental system of fast assembling-disassembling |
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| Date | Code | Title | Description |
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| 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: 20170531 Termination date: 20171121 |