CN104142607A - Light condensing device used for high-speed camera in microscopic shooting process of nozzle spraying form - Google Patents
Light condensing device used for high-speed camera in microscopic shooting process of nozzle spraying form Download PDFInfo
- Publication number
- CN104142607A CN104142607A CN201410364218.5A CN201410364218A CN104142607A CN 104142607 A CN104142607 A CN 104142607A CN 201410364218 A CN201410364218 A CN 201410364218A CN 104142607 A CN104142607 A CN 104142607A
- Authority
- CN
- China
- Prior art keywords
- conical surface
- adjusting bolt
- speed camera
- cone
- condenser
- 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.)
- Granted
Links
Landscapes
- Nozzles (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention mainly relates to engine oil sprayer technologies, in particular to a light condensing device used for a high-speed camera to improve nozzle brightness of an oil sprayer in the microscopic shooting process of the nozzle spraying form. The light condensing device used for the high-speed camera in the microscopic shooting process of the nozzle spraying form comprises a conical surface collecting lens (1) and a fixed device (6) connected with the top of the conical surface light condensing lens. The conical surface collecting lens and the fixed device are connected through a fixing frame (5). Compared with the prior art, the light condensing device has the advantages that through reflection of the light condensing conical surface, it is guaranteed that after a strong light source irradiates a nozzle, reflection light enters a microscopic camera lens of the high-speed camera as much as possible, and the amount of light entering the lens in small regions is effectively guaranteed.
Description
Technical field:
The present invention relates generally to engine fuel injector technology, further relates to a kind of beam condensing unit that strengthens fuel injector nozzle brightness during for high-speed camera microscopic photography fuel injector spray discharge pattern.
Background technology:
In the research of engine fuel injector spraying high-speed camera, shooting speed reaches several ten thousand, and even hundreds of thousands frame is per second, this just need to have enough light intensity to ensure the sharpness of pictures taken, especially when using the unlatching of microscopic study observation fuel injector, the local spray feature of close moment spray orifice, directly use intense light source to irradiate the light intensity requirement that is also difficult to meet high-speed capture, the problems such as the shake during in addition due to oil spout can affect spotlight effect, and these have all proposed very high requirement to taking light intensity used.Have scholar to propose to use convex lens to carry out optically focused processing to light source, this method can improve the brightness of pictures taken to a certain extent, in the time that more speed is taken, often can not meet the demands.The spray orifice of direct spray petrol engine in cylinder fuel injector, oil injection of high pressure common rail diesel engine device is generally arranged on nonplanar taper surface, because the existence of cone angle, the light quantity that can make reflection enter into high-speed camera camera lens reduces, thus the sharpness that impact is taken.Especially after microlens being installed, effectively observation area area is very little, higher to the requirement of light, only just adopts the method for light source surface polishing can not meet its further demand of research.In addition, for the GDI fuel injector of spray-guided, its spray angle non-homogeneous direct projection, but have certain angle with vertical direction, therefore, in strengthening image intensity, ensure normally carrying out of fuel injector spraying simultaneously.Therefore, a kind of energy of design optically focused, and can seem particularly important according to the device of the satisfied different requirements to light of obstructed occasion.
Summary of the invention:
The present invention, in order to solve the problems of the technologies described above, invents a kind of light of incident can being gone back by conical surface usable reflection, meets high-speed camera, and the microlens requirement to light intensity afterwards has especially been installed.
For the beam condensing unit of high-speed camera microscopic photography nozzle spray form, comprising: conical surface condenser 1, there is first through hole along circular cone centerline direction at vertex of a cone position; With the stationary installation 6 that conical surface condenser vertex of a cone position is connected, in stationary installation, there is a through hole 11, mister head is successively through being positioned at conical surface condenser after through hole, the first through hole; Described conical surface condenser is connected by fixed mount 5 with described stationary installation.
As preferred version, described conical surface condenser is rolled and is formed by the fan-shaped reflector of a slice flexibility; And also comprise: be positioned at the adjustable clip 3 of conical surface condenser cone end outer peripheral face, by rotation knob 2, realize tightening up and loosening of clip, and then the cone angle of cone governor face condenser.
As one of further preferred version, the scope of described adjustable clip cone governor face condenser cone angle is for being greater than 0 degree, and is less than or equal to 120 degree.
As two of further preferred version, under described conical surface condenser, there is a rectangular opening 4, the fuel that nozzle ejection goes out is fallen outside by this hole, has prevented from dropping on conical surface inwall.
As three of further preferred version, described stationary installation comprises 4 adjusting bolts, is respectively the first adjusting bolt 7, the second adjusting bolt 9, the 3rd adjusting bolt 8, the 4th adjusting bolt 10; The first adjusting bolt is relative with the 3rd adjusting bolt, and axis is on same straight line; The second adjusting bolt is relative with the 4th adjusting bolt, and axis is on same straight line; The first adjusting bolt is vertical with the axis of the second adjusting bolt, and not in a plane.
As four of further preferred version, described conical surface condenser inside surface is galvanizing surface.
The present invention with respect to the beneficial effect of prior art is:
(1) the present invention, by the reflection of the optically focused conical surface, has guaranteed that high light light source irradiates after nozzle, and reflected light as much as possible enters the microlens of high-speed camera, has effectively ensured that tiny area enters the light-inletting quantity of camera lens.
(2) in prioritization scheme, realize the adjustable of optically focused conical surface cone angle, strengthen the adaptability of device.
(3) in prioritization scheme, four adjusting bolts in stationary installation have realized the adjustable of nozzle centre axis and optically focused conical surface center line angle, for physical aspect multi-faceted, that observe with multi-angle nozzle spray.
(4), in prioritization scheme, the square hole under the optically focused conical surface, has been discharged to the fuel of nozzle ejection outside the conical surface effectively, has guaranteed the clean of conical surface surface, has kept the stability of optical reflection ability.
Brief description of the drawings:
Fig. 1 is integral layout of the present invention in embodiment.In figure, 1 represents conical surface condenser, and 2 represent knob, and 3 represent adjustable clip, and 4 represent rectangular opening, and 5 represent fixed mount, and 6 represent stationary installation, and 7 represent the first adjusting bolt.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the longitudinal sectional drawing of Fig. 2.
Fig. 4 is the upward view of Fig. 1.
Fig. 5 is the left view of Fig. 1.
Fig. 6 is fixture structure schematic diagram, and in figure, 7 represent the first adjusting bolt, and 8 represent the 3rd adjusting bolt, and 9 represent the second adjusting bolt, and 10 represent the 4th adjusting bolt, and 11 represent through hole.
Fig. 7 is fuel injector structure schematic diagram.
The situation of light incident and reflection when Fig. 8 is prior art shooting nozzle spray form.
Fig. 9 is the situation that adopts light incident and reflection while taking nozzle spray form after technical solution of the present invention.
Figure 10 is in embodiment, and four adjusting bolts in stationary installation have realized the adjustable of nozzle centre axis and optically focused conical surface center line angle, the situation of light incident and reflection while taking nozzle spray form.
Embodiment:
Embodiment:
For the beam condensing unit of high-speed camera microscopic photography nozzle spray form, comprising:
Conical surface condenser 1, there is first through hole along circular cone centerline direction at vertex of a cone position; With the stationary installation 6 that conical surface condenser vertex of a cone position is connected, in stationary installation, there is a through hole, mister head is successively through being positioned at conical surface condenser after through hole 11, the first through hole; Described conical surface condenser is connected by fixed mount 5 with described stationary installation;
Described conical surface condenser is rolled and is formed by the fan-shaped reflector of a slice flexibility; And also comprise: be positioned at the adjustable clip 3 of conical surface condenser cone end outer peripheral face, by rotation knob 2, realize tightening up and loosening of clip, and then the cone angle of cone governor face condenser.
The scope of described adjustable clip cone governor face condenser cone angle is for being greater than 0 degree, and is less than or equal to 120 degree.Under described conical surface condenser, have a rectangular opening 4, the fuel that nozzle ejection goes out is fallen outside by this hole, has prevented from dropping on conical surface inwall.Described stationary installation comprises 4 adjusting bolts, is respectively the first adjusting bolt 7, the second adjusting bolt 9, the 3rd adjusting bolt 8, the 4th adjusting bolt 10; The first adjusting bolt is relative with the 3rd adjusting bolt, and axis is on same straight line; The second adjusting bolt is relative with the 4th adjusting bolt, and axis is on same straight line; The first adjusting bolt is vertical with the axis of the second adjusting bolt, and not in a plane.Described conical surface condenser inside surface is galvanizing surface.
From Fig. 8-Figure 10 to recently, adopt technical scheme of the present invention, the ratio that the former direction of light is returned increases greatly compared with prior art, while having ensured microscopic, enters the light quantity of camera lens.
Claims (6)
1. for the beam condensing unit of high-speed camera microscopic photography nozzle spray form, it is characterized in that, comprising:
Conical surface condenser (1), there is first through hole along circular cone centerline direction at vertex of a cone position;
The stationary installation (6) being connected with conical surface condenser vertex of a cone position, has a through hole (11) in stationary installation, mister head is successively through being positioned at conical surface condenser after through hole, the first through hole;
Described conical surface condenser is connected by fixed mount (5) with described stationary installation.
2. according to claim 1 for the beam condensing unit of high-speed camera microscopic photography nozzle spray form, it is characterized in that, described conical surface condenser is rolled and is formed by the fan-shaped reflector of a slice flexibility; And also comprise:
Be positioned at the adjustable clip (3) of conical surface condenser cone end outer peripheral face, by rotation knob (2), realize tightening up and loosening of clip, and then the cone angle of cone governor face condenser.
3. according to claim 2 for the beam condensing unit of high-speed camera microscopic photography nozzle spray form, it is characterized in that, the scope of described adjustable clip cone governor face condenser cone angle is for being greater than 0 degree, and is less than or equal to 120 degree.
4. according to claim 2 for the beam condensing unit of high-speed camera microscopic photography nozzle spray form, it is characterized in that, under described conical surface condenser, have a rectangular opening (4), the fuel that nozzle ejection goes out is fallen outside by this hole, has prevented from dropping on conical surface inwall.
5. according to claim 2 for the beam condensing unit of high-speed camera microscopic photography nozzle spray form, it is characterized in that, described stationary installation comprises 4 adjusting bolts, is respectively the first adjusting bolt (7), the second adjusting bolt (9), the 3rd adjusting bolt (8), the 4th adjusting bolt (10); The first adjusting bolt is relative with the 3rd adjusting bolt, and axis is on same straight line; The second adjusting bolt is relative with the 4th adjusting bolt, and axis is on same straight line; The first adjusting bolt is vertical with the axis of the second adjusting bolt, and not in a plane.
6. according to claim 2 for the beam condensing unit of high-speed camera microscopic photography nozzle spray form, it is characterized in that, described conical surface condenser inside surface is galvanizing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364218.5A CN104142607B (en) | 2014-07-28 | 2014-07-28 | Beam condensing unit for high-speed camera microscopic photography nozzle spray form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364218.5A CN104142607B (en) | 2014-07-28 | 2014-07-28 | Beam condensing unit for high-speed camera microscopic photography nozzle spray form |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104142607A true CN104142607A (en) | 2014-11-12 |
| CN104142607B CN104142607B (en) | 2016-08-17 |
Family
ID=51851825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410364218.5A Expired - Fee Related CN104142607B (en) | 2014-07-28 | 2014-07-28 | Beam condensing unit for high-speed camera microscopic photography nozzle spray form |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104142607B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2599267Y (en) * | 2002-12-29 | 2004-01-14 | 河南科技大学 | Device for fast testing spray form of fuel spray nozzle |
| DE102005055747A1 (en) * | 2005-11-23 | 2007-05-24 | Robert Bosch Gmbh | Fuel injecting valve`s spraying image optical detection device, has several cameras circularly or laminarly arranged to each other in angular separation aligned in equidistant on object geometry, and covering common visual field |
| CN202304805U (en) * | 2011-10-21 | 2012-07-04 | 中国航空动力机械研究所 | Atomization taper angle measuring device |
| US20120195578A1 (en) * | 2011-02-01 | 2012-08-02 | Hamilton Sundstrand Corporation | Imaging system for hollow cone spray |
| CN103760142A (en) * | 2014-01-14 | 2014-04-30 | 中国科学院工程热物理研究所 | Optical measuring method and device for spatial distribution of liquid droplets of fuel nozzle |
| CN204044499U (en) * | 2014-07-28 | 2014-12-24 | 天津大学 | For the beam condensing unit of high-speed camera microscopic photography nozzle spray form |
-
2014
- 2014-07-28 CN CN201410364218.5A patent/CN104142607B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2599267Y (en) * | 2002-12-29 | 2004-01-14 | 河南科技大学 | Device for fast testing spray form of fuel spray nozzle |
| DE102005055747A1 (en) * | 2005-11-23 | 2007-05-24 | Robert Bosch Gmbh | Fuel injecting valve`s spraying image optical detection device, has several cameras circularly or laminarly arranged to each other in angular separation aligned in equidistant on object geometry, and covering common visual field |
| US20120195578A1 (en) * | 2011-02-01 | 2012-08-02 | Hamilton Sundstrand Corporation | Imaging system for hollow cone spray |
| CN202304805U (en) * | 2011-10-21 | 2012-07-04 | 中国航空动力机械研究所 | Atomization taper angle measuring device |
| CN103760142A (en) * | 2014-01-14 | 2014-04-30 | 中国科学院工程热物理研究所 | Optical measuring method and device for spatial distribution of liquid droplets of fuel nozzle |
| CN204044499U (en) * | 2014-07-28 | 2014-12-24 | 天津大学 | For the beam condensing unit of high-speed camera microscopic photography nozzle spray form |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104142607B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2306073B1 (en) | Light module for a lighting device of a motor vehicle | |
| EP2587125B1 (en) | Headlamp projection module for a motor vehicle | |
| DE102007027615B4 (en) | Device for coupling light into a fiber optic light guide | |
| CN105403568A (en) | Nozzle detecting system and method | |
| EP2505910B1 (en) | Motor vehicle headlamp with a semiconductor light source | |
| Wang et al. | Microscopic and macroscopic characterization of spray impingement under flash boiling conditions with the application of split injection strategy | |
| FI2165224T3 (en) | Sheeting with composite image that floats | |
| WO2012038173A1 (en) | Light-emitting device | |
| US20180045634A1 (en) | Multiple beam and convergent light illumination crossed-beam imaging | |
| CN204044499U (en) | For the beam condensing unit of high-speed camera microscopic photography nozzle spray form | |
| KR20160010364A (en) | Telecentric bright field and annular dark field seamlessly fused illumination | |
| CN209265169U (en) | A kind of multi-angle camera-shooting device | |
| EP1606579A1 (en) | Lateral surface sensor and imaging lens system therefor | |
| CN104142607A (en) | Light condensing device used for high-speed camera in microscopic shooting process of nozzle spraying form | |
| WO2018185218A2 (en) | Device for displaying an image | |
| CN106271120B (en) | A kind of tapered micro holes laser rotary-cut processing machine | |
| CN103104848B (en) | Lamp lampshade | |
| CN104948369A (en) | Near-field spray imaging device for common-rail injector of diesel engine | |
| CN109870790A (en) | A kind of telecentric lens | |
| CN207817313U (en) | A kind of laser new line display optical system in windshield imaging | |
| US12092559B2 (en) | Method, system, and lighting module for fast-moving particle characterization | |
| Crua et al. | Image-based analysis of evaporating diesel sprays in the near-nozzle region | |
| CN209341012U (en) | A kind of multichannel high uniformity columnar light source | |
| CN205447639U (en) | Mixed light condenser system | |
| Liu et al. | Visual test analysis of injector carbon deposition based on image processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160817 Termination date: 20210728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |