CN104142607B - Beam condensing unit for high-speed camera microscopic photography nozzle spray form - Google Patents
Beam condensing unit for high-speed camera microscopic photography nozzle spray form Download PDFInfo
- Publication number
- CN104142607B CN104142607B CN201410364218.5A CN201410364218A CN104142607B CN 104142607 B CN104142607 B CN 104142607B CN 201410364218 A CN201410364218 A CN 201410364218A CN 104142607 B CN104142607 B CN 104142607B
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- China
- Prior art keywords
- conical surface
- condenser lens
- speed camera
- condensing unit
- regulation bolt
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- 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.)
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Abstract
The invention mainly relates to engine fuel injector technology, further to a kind of for high-speed camera microscopic photography fuel injector spray discharge pattern time strengthen fuel injector nozzle brightness beam condensing unit.For the beam condensing unit of high-speed camera microscopic photography nozzle spray form, including: conical surface condenser lens 1, the fixing device 6 being connected with conical surface condenser lens vertex of a cone position；Described conical surface condenser lens is connected by fixed mount 5 with described fixing device.The present invention has the beneficial effect that the reflection by the optically focused conical surface relative to prior art, it is ensured that after light intensity light source irradiates nozzle, and reflection light as much as possible enters the microlens of high-speed camera, tiny area has been effectively ensured and has entered the light-inletting quantity of camera lens.
Description
Technical field:
The invention mainly relates to engine fuel injector technology, further to one for taking the photograph at a high speed
The beam condensing unit of fuel injector nozzle brightness is strengthened during camera microscopic photography fuel injector spray discharge pattern.
Background technology:
In engine fuel injector spraying high-speed camera research, it is the most several that shooting speed reaches several ten thousand
100000 frames are per second, and this needs exist for enough light intensity and ensures to shoot the definition of picture, especially
Use microscopic study observation fuel injector open, close moment spray orifice topical spray feature time
Wait, directly use intense light source to irradiate and also be difficult to meet the light intensity requirement of high-speed capture, additionally, due to
The problems such as shake during oil spout can affect spotlight effect, and these light intensities all used to shooting propose
The highest requirement.Scholar is had to propose to use convex lens that light source carries out optically focused process, this side
Method can improve the brightness of shooting picture to a certain extent, when more speed shoots, the most not
Requirement can be met.Direct spray petrol engine in cylinder fuel injector, the spray orifice of oil injection of high pressure common rail diesel engine device
It is typically located on nonplanar taper surface, because the existence of cone angle, can make to be reflected into height
The light quantity of speed camera lens reduces, thus affects the definition of shooting.Especially it is mounted with to show
After micro lens, effective observation area area is the least, and the requirement to light is higher, is only merely and adopts
Its demand studied further can not have been met by the method for light source surface polishing.It addition, it is right
In the GDI fuel injector of spray-guided, its spray angle non-homogeneous direct projection, but and vertical
There is certain angle in direction, therefore strengthening image intensity when, ensures fuel injector spray simultaneously
Being normally carried out of mist.Therefore, design a kind of energy optically focused, and difference can be met according to obstructed occasion
The device of the requirement of light is particularly important.
Summary of the invention:
The present invention is to solve above-mentioned technical problem, invent a kind of can be by incident light by cone
Face effectively reflects back, and meets high-speed camera, is especially mounted with after microlens light
Strong requirement.
For the beam condensing unit of high-speed camera microscopic photography nozzle spray form, including: the conical surface
Condenser lens 1, vertex of a cone position has one along the first through hole of circular cone centerline direction；With conical surface optically focused
The fixing device 6 that mirror vertex of a cone position connects, has a through hole 11 in fixing device, nozzle depends on
Secondary after through hole, the first through hole, it is positioned at conical surface condenser lens；Described conical surface condenser lens and institute
State fixing device to be connected by fixed mount 5.
Preferably, described conical surface condenser lens rolled by the fan-shaped reflector of a piece of flexibility and
Become；And also include: it is positioned at the scalable clip 3 of conical surface condenser lens cone end outer peripheral face, by rotation
Rotate button 2, it is achieved the tightening up and loosen of scalable clip, and then the cone of cone governor face condenser
Angle.
As one of further preferred scheme, described scalable clip cone governor face condenser cone angle
In the range of more than 0 degree, and less than or equal to 120 degree.
As the two of further preferred scheme, immediately below described conical surface condenser lens, there is a rectangular opening
4, the fuel that nozzle ejects falls outside by this hole, it is therefore prevented that fall at conical surface inwall.
As the three of further preferred scheme, described fixing device includes 4 regulation bolts, point
It is not that the first regulation bolt 7, second regulates bolt the 9, the 3rd regulation bolt the 8, the 4th regulation
Bolt 10；First regulation bolt and the 3rd regulation bolt are relative, and the axis of the two is same
On straight line；Second regulation bolt and the 4th regulation bolt are relative, and the axis of the two is with always
On line；First regulation bolt is vertical with the axis of the second regulation bolt, and not in a plane.
As the four of further preferred scheme, described conical surface condenser lens inner surface is galvanizing surface.
The present invention having the beneficial effect that relative to prior art
(1) present invention reflection by the optically focused conical surface, it is ensured that after light intensity light source irradiates nozzle,
Reflection light as much as possible enters the microlens of high-speed camera, and tiny area has been effectively ensured
Enter the light-inletting quantity of camera lens.
(2) in prioritization scheme, it is achieved that optically focused conical surface cone angle adjustable, device is enhanced
Adaptability.
(3) in prioritization scheme, four regulation bolts in fixing device achieve in nozzle
Mandrel line is adjustable with optically focused conical surface centerlines, for multi-faceted, observe spray with multi-angle
The physical aspect of mouth spraying.
(4) in prioritization scheme, the square hole immediately below the optically focused conical surface, effectively by nozzle
The fuel of ejection has been discharged to outside the conical surface, it is ensured that the cleaning on conical surface surface, maintains optical reflection
The stability of ability.
Accompanying drawing illustrates:
Fig. 1 is the integral layout of the present invention in embodiment.In figure, 1 represents conical surface condenser lens,
2 represent knob, and 3 represent scalable clip, and 4 represent rectangular opening, and 5 represent fixed mount, and 6
Representing fixing device, 7 represent the first regulation 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 regulation bolt, 8 generations
Table the 3rd regulates bolt, and 9 represent the second regulation bolt, and 10 represent the 4th regulation bolt, and 11
Represent through hole.
Fig. 7 is fuel injector structure schematic diagram.
Light and the situation of reflection when Fig. 8 is prior art shooting nozzle spray form.
When Fig. 9 shoots nozzle spray form after technical solution of the present invention for using light and
The situation of reflection.
Figure 10 is in embodiment, and four regulation bolts in fixing device achieve nozzle center
Axis is adjustable with optically focused conical surface centerlines, shooting nozzle spray form time light and
The situation of reflection.
Detailed description of the invention:
Embodiment:
For the beam condensing unit of high-speed camera microscopic photography nozzle spray form, including:
Conical surface condenser lens 1, vertex of a cone position has one along the first through hole of circular cone centerline direction；With
The fixing device 6 that conical surface condenser lens vertex of a cone position connects, has a through hole in fixing device,
Nozzle is positioned at conical surface condenser lens after sequentially passing through through hole the 11, first through hole；The described conical surface
Condenser lens is connected by fixed mount 5 with described fixing device；
Described conical surface condenser lens is rolled by the fan-shaped reflector of a piece of flexibility and forms；And also include:
It is positioned at the scalable clip 3 of conical surface condenser lens cone end outer peripheral face, by rotary knob 2, it is achieved
The tightening up and loosen of scalable clip, and then the cone angle of cone governor face condenser.
Described scalable clip cone governor face condenser cone angle is in the range of more than 0 degree, and is less than
Equal to 120 degree.Having a rectangular opening 4 immediately below described conical surface condenser lens, nozzle ejects
Fuel falls outside by this hole, it is therefore prevented that fall at conical surface inwall.Described fixing device includes 4
Individual regulation bolt, the respectively first regulation bolt 7, second regulates bolt the 9, the 3rd and regulates spiral shell
Bolt the 8, the 4th regulates bolt 10；First regulation bolt and the 3rd regulation bolt are relative, and the two
Axis on the same line；Second regulation bolt and the 4th regulation bolt are relative, and the two
Axis is on the same line；First regulation bolt is vertical with the axis of the second regulation bolt, and not
In a plane.Described conical surface condenser lens inner surface is galvanizing surface.
From the point of view of the contrast of Fig. 8-Figure 10, use technical scheme, the former direction of light
The ratio relatively prior art returned is greatly increased, it is ensured that during microscopic, enters camera lens
Light quantity.
Claims (6)
1. for the beam condensing unit of high-speed camera microscopic photography nozzle spray form, its feature
It is, including:
Conical surface condenser lens (1), vertex of a cone position has one along the first through hole of circular cone centerline direction；
The fixing device (6) being connected with conical surface condenser lens vertex of a cone position, has one in fixing device
Through hole (11), nozzle is positioned at conical surface condenser lens after sequentially passing through through hole, the first through hole；
Described conical surface condenser lens is connected by fixed mount (5) with described fixing device.
The most according to claim 1 for high-speed camera microscopic photography nozzle spray form
Beam condensing unit, it is characterised in that described conical surface condenser lens is by the fan-shaped reflector of a piece of flexibility
Roll and form；And also include:
It is positioned at the scalable clip (3) of conical surface condenser lens cone end outer peripheral face, passes through rotary knob
, it is achieved the tightening up and loosen of scalable clip, and then the cone angle of cone governor face condenser (2).
The most according to claim 2 for high-speed camera microscopic photography nozzle spray form
Beam condensing unit, it is characterised in that the model of described scalable clip cone governor face condenser cone angle
Enclose for more than 0 degree, and less than or equal to 120 degree.
The most according to claim 2 for high-speed camera microscopic photography nozzle spray form
Beam condensing unit, it is characterised in that have a rectangular opening (4) immediately below described conical surface condenser lens,
The fuel that nozzle ejects falls outside by this hole, it is therefore prevented that fall at conical surface inwall.
The most according to claim 2 for high-speed camera microscopic photography nozzle spray form
Beam condensing unit, it is characterised in that described fixing device include 4 regulation bolts, be respectively
First regulation bolt (7), the second regulation bolt (9), the 3rd regulation bolt (8), the 4th tune
Joint bolt (10)；First regulation bolt and the 3rd regulation bolt are relative, and the axis of the two exists
On same straight line；Second regulation bolt and the 4th regulation bolt are relative, and the axis of the two is same
On one straight line；First regulation bolt is vertical with the axis of the second regulation bolt, and does not puts down at one
In face.
The most according to claim 2 for high-speed camera microscopic photography nozzle spray form
Beam condensing unit, it is characterised in that described conical surface condenser lens inner 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 CN104142607A (en) | 2014-11-12 |
| CN104142607B true 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 |
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| Country | Link |
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| CN (1) | CN104142607B (en) |
Citations (5)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8351780B2 (en) * | 2011-02-01 | 2013-01-08 | Hamilton Sundstrand Corporation | Imaging system for hollow cone spray |
-
2014
- 2014-07-28 CN CN201410364218.5A patent/CN104142607B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| 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 |
|---|---|
| CN104142607A (en) | 2014-11-12 |
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