CN117990376A - Visual precombustion chamber oil injection ignition and thermal jet optical measurement system - Google Patents
Visual precombustion chamber oil injection ignition and thermal jet optical measurement system Download PDFInfo
- Publication number
- CN117990376A CN117990376A CN202410270569.3A CN202410270569A CN117990376A CN 117990376 A CN117990376 A CN 117990376A CN 202410270569 A CN202410270569 A CN 202410270569A CN 117990376 A CN117990376 A CN 117990376A
- Authority
- CN
- China
- Prior art keywords
- visual
- constant volume
- observation body
- precombustion chamber
- observation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000007 visual effect Effects 0.000 title claims abstract description 46
- 230000003287 optical effect Effects 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 title claims abstract description 17
- 238000002347 injection Methods 0.000 title claims abstract description 11
- 239000007924 injection Substances 0.000 title claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000010453 quartz Substances 0.000 claims abstract description 35
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 102100020760 Ferritin heavy chain Human genes 0.000 description 3
- 101001002987 Homo sapiens Ferritin heavy chain Proteins 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012800 visualization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000001499 laser induced fluorescence spectroscopy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses an optical measurement system for oil injection ignition and thermal jet flow of a visual precombustion chamber, which comprises a high-speed camera, a light source, a constant volume bomb and a test module, wherein a first observation body, a second observation body and a jet flow end body are formed outside the visual precombustion chamber from top to bottom, the first observation body and the second observation body are of square column structures and are of stepped laminated structures with large top and small bottom, the first observation body, four first side planes and four second side planes of the second observation body are respectively and correspondingly parallel to quartz windows on four sides of the constant volume bomb one by one, and the bottom end face of the first observation body and the bottom end face of the second observation body are respectively parallel to the quartz windows on the bottom end face of the constant volume bomb; the jet end body is in a frustum structure, and the bottom plane of the jet end body is parallel to a quartz window of the bottom end face of the constant volume cartridge; the optical measurement system reduces refraction of shining light and shooting light and reflection to other directions through the square column structure and the visual precombustor body designed in a stepped mode, and optimizes and improves the distortion phenomenon of shooting.
Description
Technical Field
The invention relates to the technical field of engine testing, in particular to a visual pre-combustion chamber oil injection ignition and thermal jet optical measurement system.
Background
The active pre-combustion chamber engine adopts a lean combustion technology to improve the thermal efficiency of the engine, the conditions of fire failure and the like are easy to generate under the condition that the mixed gas in the engine cylinder is too lean, and the conditions of knocking and the like are easier to generate when the local flame propagates slowly, so that the active pre-combustion chamber can be utilized to perform jet flame ignition, a plurality of ignition points are formed in the main combustion chamber, and the combustion of the lean mixed gas is ensured.
The method has the advantages that the formation, ignition, flame propagation and jet development evolution processes of the mixed gas in the precombustion chamber are researched by using a visualization technology, the defect of experimental data of the information in the precombustion chamber is filled, the method has important promotion significance for deep research of the jet flow in the precombustion chamber by a system, and particularly, the formation of the mixed gas caused by the impact of spray in the precombustion chamber on complex wall surfaces, complex wall surfaces and air flow induction is not published at present, so that the international blank in the aspect can be further filled by the visualization of the precombustion chamber;
Because the volume in the initiative precombustion chamber is narrow and small, the structure is compact and complex, the refraction and reflection of the light path are complex and changeable, and a certain difficulty exists in acquiring a real effective image, the initiative precombustion chamber is required to be structurally designed, and the structural distribution of the measuring system is required to be integrally designed.
Disclosure of Invention
The present invention is directed to overcoming the shortcomings of the prior art and providing a visual prechamber fuel injection ignition and thermal jet optical measurement system that, to a certain extent, overcomes one or more of the problems due to the limitations and disadvantages of the related art.
In order to achieve the above object, the technical scheme of the present invention is as follows:
The utility model provides a visual precombustion chamber oil spout ignition and thermal jet optical measurement system, including high-speed camera, the light source, constant volume bullet and test module, constant volume bullet is the regular hexahedron, test module cartridge is on constant volume bullet top end face, four sides of constant volume bullet and bottom end face all are provided with quartz window, test module includes the sprayer, the spark plug, pressure sensor, intermediate junction body and visual precombustion chamber body, the sprayer, spark plug and pressure sensor all insert to install on intermediate junction body, the nozzle end of sprayer and the firing end of spark plug stretch out from intermediate junction body lower extreme, and stretch into the precombustion chamber of visual precombustion chamber body, pressure sensor's detection tip can communicate the precombustion chamber;
the visual precombustion chamber body is connected with the middle connecting body, a precombustion chamber positioned in the visual precombustion chamber body is formed on the lower end face of the middle connecting body, and five quartz windows are aligned to the precombustion chamber and used for collecting image information in the precombustion chamber; the precombustion chamber comprises a conical cavity with a conical shape at the upper part, a columnar cavity at the middle part and a jet cavity with a conical shape at the lower part, wherein the conical cavity, the columnar cavity and the jet cavity are all provided with collinear rotation center lines, and a plurality of jet holes are uniformly distributed on the conical surface of the jet cavity in an annular shape;
The visual precombustion chamber body is formed by integrally processing quartz glass, a first observation body, a second observation body and a jet flow end body are formed outside the visual precombustion chamber body from top to bottom, the first observation body, the second observation body and the jet flow end body are all positioned in the constant volume bomb cavity, the complete precombustion chamber can be observed by the first observation body, the second observation body and the jet flow end body, the first observation body corresponds to the conical chamber, and the second observation body corresponds to the columnar chamber; the first observation body and the second observation body are of square column structures and are of stepped laminated structures with large upper part and small lower part, the first observation body is provided with four first side planes which are respectively and correspondingly parallel to quartz windows on four sides of the constant volume projectile, the bottom end surface of the first observation body is parallel to the quartz windows on the bottom end surface of the constant volume projectile, the second observation body is provided with four second side planes which are respectively and correspondingly parallel to the quartz windows on the four sides of the constant volume projectile, and the bottom end surface of the second observation body is parallel to the quartz windows on the bottom end surface of the constant volume projectile; the jet end body is in a frustum-shaped structure and corresponds to the jet cavity, and the bottom plane of the jet end body is parallel to a quartz window of the bottom end face of the constant volume cartridge; the symmetrical central lines of the first observation body and the second observation body and the central axis of the jet end body are all collinear with the rotation central line.
Preferably, the upper end of the first observation body of the visual precombustion chamber body extends outwards from the bullet cavity, a mounting hole which is connected with the conical cavity in the forward direction is formed in the first observation body, the middle connecting body comprises an upper sealing step and a lower inserting cylinder, the inserting cylinder is in transition fit with the mounting hole, and the step end face of the sealing step is in sealing connection with the upper end face of the first observation body through a first sealing gasket.
More preferably, the test module is mounted on the constant volume bomb through a mounting base and a press-fit ring, and the press-fit ring is detachably connected with the mounting base; the mounting base is fixedly connected with the assembly hole at the upper end of the constant volume bomb, a mounting groove is formed in the mounting base, and a positioning square hole is formed in the bottom of the mounting groove; the upper end of the sealing step is provided with an annular boss, and the annular surface of the press-fit ring is pressed on the annular boss; the upper end of the visual precombustion chamber body is provided with a mounting step, the first observation body is in transitional insertion with the positioning square hole and is in sealing connection with the bottom of the mounting groove through the mounting step, and a second sealing gasket is arranged between the mounting step and the bottom of the mounting groove.
Further preferably, the light source adopts an LED light source or a laser light source, and the light source and the high-speed camera are respectively arranged outside two mutually perpendicular quartz windows and are respectively aligned with the quartz windows for forming mutually perpendicular shining rays and shooting rays.
Further preferably, the wall thickness of the visible prechamber body is not less than 3mm.
Compared with the prior art, the visual precombustor oil injection ignition and thermal jet optical measurement system has the following beneficial effects:
The optical measurement system is provided with the visual precombustor body which is of a square column structure and is designed in a stepped mode, parallel light rays vertically enter the precombustor from a step plane or a flat side plane at the bottom end of the visual precombustor body, refraction of the light rays and reflection to other directions are reduced, spraying or free radicals in the precombustor body are illuminated, mie scattering or PLIF self-luminescence is excited, and likewise, a high-speed camera shoots outside or at the bottom of the side face of the constant volume bomb, shooting light rays are vertical to the step plane at the side face or the step plane at the bottom of the visual precombustor body, refraction of the light rays and reflection to other directions are reduced, and shooting distortion is optimized and improved.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a test module according to the present invention after being partially cut away;
FIG. 2 is a schematic cross-sectional view of a test module according to the present disclosure;
Fig. 3 is a schematic structural diagram of an optical measurement system according to the present disclosure.
In the figure: 1. an oil injector; 2. a spark plug; 3. an intermediate connector; 31. a sealing step; 32. a plug-in column body; 4. a visual precombustor body; 41. mounting steps; 42. a first observation body; 421. a first side plane; 422. a first horizontal step surface; 43. a second observation body; 431. a second side plane; 432. a second horizontal step surface; 44. a jet end body; 441. jet holes; 45. a visual precombustor; 451. a conical chamber; 452. a columnar chamber; 453. a jet cavity; 5. a second sealing gasket 6 and a pressure sensor; 7. a first gasket; 8. a constant volume bomb; 81. a mounting base; 82. a base fixing ring; 83. a quartz window; 9. a high-speed camera; 10. a light source; 11. and (5) pressing the ring.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is apparent that the described embodiments are only preferred embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment provides a visual precombustor 45 oil injection ignition and thermal jet optical measurement system, as shown in fig. 1-3, which comprises a high-speed camera 9, a light source 10, a constant volume bomb 8 and a test module, wherein the light source 10 adopts an LED light source 10 or a laser light source 10 for exciting rice scattering or PLIF luminescence;
The constant volume bomb 8 is made of quartz constant volume bomb 8 with a conventional regular hexahedral structure, the top end surface of the constant volume bomb 8 is an inserting installation end surface of the test module, the end surface is provided with an installation step 41 hole, the four side surfaces and the bottom end surface of the constant volume bomb 8 are respectively provided with a quartz window 83, and the quartz windows 83 are made of planar quartz glass sheets;
Specifically, the test module comprises an oil sprayer 1, a spark plug 2, a pressure sensor 6, an intermediate connector 3 and a visual precombustion chamber 45 body 4, wherein the oil sprayer 1, the spark plug 2 and the pressure sensor 6 are inserted and fixedly installed on the intermediate connector 3 in a sealing manner, the installation positions and the installation angles of the oil sprayer 1 and the spark plug 2 are set according to the actual assembly requirements of the oil sprayer in an engine, the nozzle end of the oil sprayer 1 and the ignition end of the spark plug 2 extend out from the lower end of the intermediate connector 3 and extend into the precombustion chamber constructed in the visual precombustion chamber 45 body 4, and in addition, the detection end part of the pressure sensor 6 can be communicated with the precombustion chamber for collecting the gas pressure in the precombustion chamber;
As shown in fig. 1, the visible precombustor 45 is in sealing connection with the middle connector 3, so as to construct a sealed narrow precombustor space at the lower end surface of the middle connector 3, wherein the precombustor is located in an observable area of a bullet cavity of the constant volume bullet 8, namely, the precombustor is located in an observation area of five quartz windows 83, the precombustor structure is designed according to a test scheme and generally comprises an upper frustum-shaped conical cavity 451, a middle columnar cavity 452 and a lower frustum-shaped jet cavity 453, the conical cavity 451, the columnar cavity 452 and the jet cavity 453 are sequentially and smoothly transited and have the same rotation center line, and a plurality of jet holes 441 with the same length and the same angle are uniformly distributed on the conical surface of the jet cavity 453 in an annular shape;
The visual precombustor 45 is formed by quartz glass integrated processing, refraction and reflection of light rays are reduced for truly reflecting the jet flow state in the precombustor, parallel light reaching the interior of the precombustor is constructed to serve as lighting rays and shooting rays, meanwhile, in consideration of large radial change of a plurality of chambers in the visual precombustor 45, the exterior of the visual precombustor 45 is specifically designed to be a first observation body 42, a second observation body 43 and a jet flow end body 44 from top to bottom as far as possible in order to avoid an oversized light ray refraction area, wherein the first observation body 42 and the second observation body 43 are designed to be a stepped square cylinder structure with the upper part being large and the lower part being small, so that four first side planes 421 of the first observation body 42 in a plane shape and a first horizontal step surface 422 in a square shape are formed, and four second side planes 431 of the second observation body 43 and a second horizontal step surface 432 in a square shape are formed; the first observation body 42 is internally provided with a conical cavity 451 correspondingly, the second observation body 43 is internally provided with a columnar cavity 452 correspondingly, the first side plane 421 and the second side plane 431 are respectively in one-to-one correspondence with the quartz windows 83 on the four sides of the constant volume projectile 8, and the first horizontal step surface 422 and the second horizontal step surface 432 are both parallel with the quartz windows 83 on the bottom surface of the constant volume projectile; in addition, in order to construct the equal-length jet holes 441, the jet end body 44 is designed into a frustum shape, a jet cavity 453 is correspondingly constructed in the frustum shape, and the bottom end surface of the jet end body 44 is also parallel to the quartz window 83 of the bottom end surface of the constant volume bomb 8;
Because the visual precombustor 45 body 4 adopts quartz glass, the structural strength is weaker under the action of air pressure in the bullet cavity, the wall thickness of the visual precombustor 45 body 4 is more than or equal to 3mm, the wall thickness on the same cross section is kept uniform as much as possible, and the symmetrical central lines of the first observation body 42 and the second observation body 43 and the central line of the jet end body 44 are all collinear with the rotation central line.
In addition, the fuel injector 1 and the spark plug 2 on the intermediate connector 3 have position requirements with the rotation center line of the precombustor, in order to ensure the installation precision, the first observation body 42 of the visual precombustor 45 body 4 is extended, an installation hole which is in smooth connection with the conical cavity 451 is formed in the first observation body, and the installation hole is in transition fit with the plug-in column 32 at the lower end of the intermediate connector 3 to control the assembly precision; the step end surface of the middle connector 3 under the sealing step 31 is in contact connection with the upper end surface of the first observation body 42 and is sealed by the first sealing gasket 7 between the two;
In this embodiment, as shown in fig. 3, the test module is mounted on the constant volume bomb 8 through the press-fit ring 11 and the mounting base 81; the press-fit ring 11 is arranged at the bottom of the mounting groove and connected with the mounting base 81 through screws, an annular boss is arranged at the upper end of the sealing step 31, the annular surface of the press-fit ring 11 is pressed on the annular boss, and the test module is pressed and fixed on the mounting base 81; the installation base 81 is inserted in the assembly hole and is fixed on the constant volume bullet 8 through the base retainer plate 82, the test module is located the mounting groove, and insert through the square hole of location at its tank bottom middle part and establish the installation, the square cylinder transition adaptation of location square hole and first observation body 42 is in order to fix a position the test module, in order to realize the reliable seal in bullet chamber, the upper end of visual precombustion chamber 45 body 4 is for mounting step 41, be provided with second sealed pad 5 between mounting step 41 and the mounting groove tank bottom, in order to sealing connection mounting step 41 and the tank bottom of mounting groove. The test module is installed on the constant volume bullet 8 through the installation base 81 and the press-fit ring 11, and the press-fit ring 11 is detachably connected with the installation base 81.
In this embodiment, as shown in fig. 3, the optical path of the optical measurement system is optimally designed, specifically: the light source 10 and the high-speed camera 9 are respectively arranged outside two mutually perpendicular quartz windows 83 and respectively aligned with the quartz windows 83, and are used for forming mutually perpendicular lighting rays and shooting rays, for example, when the side surface forms of jet flow or flame are collected, lighting can be carried out from the quartz windows 83 on the bottom end surface of the constant volume bomb 8, and the high-speed camera 9 is arranged outside the quartz windows 83 on any side surface of the constant volume bomb 8 for image capturing; or alternatively; when jet flow or flame end surface forms need to be collected, polishing can be carried out from a quartz window 83 on any side surface of the constant volume bomb 8, and the high-speed camera 9 is arranged outside the quartz window 83 on the bottom end surface of the constant volume bomb 8; the light path design can reduce the reflection quantity of the light source 10 to the high-speed camera 9, improve and optimize the shooting effect, and avoid the damage of the high-speed camera 9 by the high-brightness light source 10, so that the rice scattering or PLIF laser induced fluorescence enhanced natural chemiluminescence method is comprehensively utilized to visually diagnose the formation, ignition, flame propagation and jet development and evolution process of the spray wall-striking mixed gas in the visual precombustor 45.
Reference herein to "upper", "lower", "side", "end", "bottom", "inner", "outer" and like directional terms refer to the orientation or positional relationship shown in fig. 1-3. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the apparatus, elements or components indicated to the particular orientation or to be constructed and operated in a particular orientation;
also, some of the above terms may be used to indicate other meanings besides azimuth or positional relationships, for example, the terms "upper", "inner", etc. may also be used to indicate some kind of dependency or connection relationship in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A visual precombustion chamber oil spout ignition and thermal jet optical measurement system which characterized in that: the device comprises a high-speed camera, a light source, a constant volume bomb and a test module, wherein the constant volume bomb is a regular hexahedron, the test module is inserted on the top end face of the constant volume bomb, quartz windows are arranged on the four side faces and the bottom end face of the constant volume bomb, the test module comprises an oil sprayer, a spark plug, a pressure sensor, a middle connector and a visual precombustion chamber body, the oil sprayer, the spark plug and the pressure sensor are inserted and installed on the middle connector, the nozzle end of the oil sprayer and the ignition end of the spark plug extend out from the lower end of the middle connector and extend into the precombustion chamber of the visual precombustion chamber body, and the detection end of the pressure sensor can be communicated with the precombustion chamber;
The visual precombustion chamber body is connected with the middle connector, the precombustion chamber positioned in the visual precombustion chamber body is formed on the lower end face of the middle connector, and the five quartz windows are aligned to the precombustion chamber; the precombustion chamber comprises a conical chamber with a conical upper part, a columnar chamber in the middle and a jet flow chamber with a conical lower part, wherein the conical chamber, the columnar chamber and the jet flow chamber are all provided with collinear rotation center lines, and a plurality of jet flow holes are uniformly distributed on the conical surface of the jet flow chamber in an annular shape;
The visual precombustion chamber body is formed by integrally processing quartz glass, a first observation body, a second observation body and a jet flow end body are formed outside the visual precombustion chamber body from top to bottom, the first observation body, the second observation body and the jet flow end body are all positioned in a bullet cavity of the constant volume bullet, the first observation body, the second observation body and the jet flow end body can observe the complete precombustion chamber, the first observation body corresponds to the conical chamber, and the second observation body corresponds to the columnar chamber; the first observation body and the second observation body are of square column structures and are of stepped laminated structures with large upper parts and small lower parts, the first observation body is provided with four first side planes which are respectively in one-to-one correspondence with the quartz windows on the four sides of the constant volume projectile, the bottom end surface of the first observation body is parallel with the quartz windows on the bottom end surface of the constant volume projectile, and likewise, the second observation body is provided with four second side planes which are respectively in one-to-one correspondence with the quartz windows on the four sides of the constant volume projectile, and the bottom end surface of the second observation body is parallel with the quartz windows on the bottom end surface of the constant volume projectile; the jet flow end body is in a frustum structure and corresponds to the jet flow cavity, and the bottom plane of the jet flow end body is parallel to the quartz window of the constant volume bullet bottom end surface; the symmetrical central lines of the first observation body and the second observation body and the central axis of the jet flow end body are all collinear with the rotation central line.
2. The visual prechamber fuel injection ignition and thermal jet optical measurement system as recited in claim 1 wherein: the upper end of the first observation body extends out of the elastic cavity, a mounting hole which is connected with the conical cavity in the clockwise direction is formed in the first observation body, the middle connection body comprises an upper sealing step and a lower inserting cylinder, the inserting cylinder is in transition fit with the mounting hole, and the step end face of the sealing step is in sealing connection with the upper end face of the first observation body through a first sealing gasket.
3. The visual prechamber fuel injection ignition and thermal jet optical measurement system as recited in claim 2 wherein: the test module is arranged on the constant volume bomb through an installation base and a press-fit ring, the press-fit ring is detachably connected with the installation base, an annular boss is arranged at the upper end of the sealing step, and the annular surface of the press-fit ring is pressed on the annular boss; the mounting base is fixedly connected with the assembly hole at the upper end of the constant volume bomb, a mounting groove is formed in the mounting base, and a positioning square hole is formed in the bottom of the mounting groove; the upper end of the visual precombustion chamber body is provided with a mounting step, the first observation body is in transitional insertion with the positioning square hole and is in sealing connection with the bottom of the mounting groove through the mounting step, and a second sealing gasket is arranged between the mounting step and the bottom of the mounting groove.
4. The visual prechamber fuel injection ignition and thermal jet optical measurement system as recited in claim 1 wherein: the light source adopts an LED light source or a laser light source, and the light source and the high-speed camera are respectively arranged outside the two mutually perpendicular quartz windows and are respectively aligned with the quartz windows for forming mutually perpendicular lighting rays and shooting rays.
5. A visual prechamber fuel injection ignition and thermal jet optical measurement system as recited in claim 3 wherein: the wall thickness of the visual precombustion chamber body is more than or equal to 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410270569.3A CN117990376A (en) | 2024-03-11 | 2024-03-11 | Visual precombustion chamber oil injection ignition and thermal jet optical measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410270569.3A CN117990376A (en) | 2024-03-11 | 2024-03-11 | Visual precombustion chamber oil injection ignition and thermal jet optical measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117990376A true CN117990376A (en) | 2024-05-07 |
Family
ID=90891455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410270569.3A Pending CN117990376A (en) | 2024-03-11 | 2024-03-11 | Visual precombustion chamber oil injection ignition and thermal jet optical measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117990376A (en) |
-
2024
- 2024-03-11 CN CN202410270569.3A patent/CN117990376A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106353098B (en) | A kind of constant volume body for diesel spray and combustion visualization experiment | |
| CN108709749B (en) | Experimental system for simulating interaction between turbulent flame and wall surface oil film | |
| CN106525443B (en) | A kind of the multi-functional combustion test device and test method of simulated engine condition | |
| CN106168540B (en) | Can flexible modulation flowing-pressure wave-burning interaction visualization combustion chamber | |
| CN105840382B (en) | A kind of evaluation method and measuring device of each spray orifice uniformity of fuel injector | |
| US7395699B2 (en) | Spark-plug LDV, LIF, and LII probe for engine flow and combustion analysis | |
| CN112834231B (en) | Atomizing, combustion and emission characteristic experiment device and method for collision spraying | |
| CN107290133A (en) | A kind of system for realizing intracavitary microwave ignition combustion event visual inspection | |
| CN108663475A (en) | A kind of real-time Burning rate testing apparatus and method of micro- powder column | |
| CN111077046A (en) | Schlieren porous spray test system suitable for ultrahigh back pressure | |
| CN117990376A (en) | Visual precombustion chamber oil injection ignition and thermal jet optical measurement system | |
| CN105445033B (en) | A kind of CONSTANT VOLUME MODEL COMBUSTION CHAMBER for studying spray discharge pattern and its microscopic characteristics | |
| CN109488488B (en) | Test section suitable for longitudinal combustion unstable optical measurement under high-temperature and high-pressure environment | |
| CN110806318B (en) | Two-dimensional flat visual constant-volume combustion bomb | |
| Nakamura et al. | Application of image converter camera to measure flame propagation in SI engine | |
| CN111664450B (en) | Visualization system for accelerating interaction of flame with multi-walled surface boundary | |
| Rahman | Experimental investigation and CFD simulation of mixture formation and combustion in hydrogen direct injection spark-ignition engine | |
| CN217380735U (en) | Piston group structure of novel optical diagnosis platform | |
| CN107044638B (en) | Gas-liquid dual-purpose burner | |
| CN220063968U (en) | Constant volume combustion bomb device for simulating direct injection of liquid ammonia and diesel oil in cylinder | |
| CN212054921U (en) | Piston structure for optical single-cylinder engine and optical single-cylinder engine | |
| CN205482808U (en) | Shell case size optical measurements appearance | |
| CN221570615U (en) | Dual-fuel injection and combustion device with rapid heating of whole inner wall | |
| CN219369553U (en) | Long optical path absorption cell structure | |
| Witze | In-cylinder diagnostics for production spark ignition engines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |