CN105651522B - Target practice position measurement device for piston cooling nozzle performance test stand - Google Patents
Target practice position measurement device for piston cooling nozzle performance test stand Download PDFInfo
- Publication number
- CN105651522B CN105651522B CN201610223824.4A CN201610223824A CN105651522B CN 105651522 B CN105651522 B CN 105651522B CN 201610223824 A CN201610223824 A CN 201610223824A CN 105651522 B CN105651522 B CN 105651522B
- Authority
- CN
- China
- Prior art keywords
- hole
- piston cooling
- cooling nozzle
- target
- target practice
- 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.)
- Active
Links
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
- G01M15/02—Details or accessories of testing apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
Abstract
The invention discloses a kind of target practice position measurement device for piston cooling nozzle performance test stand, wherein, on installing plate and it is each provided with vertical or oblique through hole on orifice plate, orifice plate is installed on installing plate and the through hole of orifice plate is located in the through hole of installing plate, the through hole of orifice plate is positioned at the lower section with the spout of the nozzle body of piston cooling nozzle, the umbrella shape target surface of umbrella shape target is located at the lower section of the through hole of orifice plate, the lower end of the center bearing column of umbrella shape target bottom and the pressure input of force cell connect, protective case is set in the center bearing column of umbrella shape target bottom and the outside of force cell.The target practice power of the oil beam jetted for the through hole that the present invention passes through orifice plate by force cell measurement, it can judge whether piston cooling nozzle is qualified by way of setting target practice power lower limit, the whether appropriate evaluation result in piston cooling nozzle target practice position is obtained, there is the influence of high, the not examined medium machine oil atomization of detection efficiency, the blanket advantage of oily beam to arbitrary shape.
Description
Technical field
The present invention relates to a kind of partial structurtes of piston cooling nozzle performance test stand, more particularly to one kind to be used for piston
The target practice position measurement device of cooling nozzles performance test stand.
Background technology
Important component of the piston cooling nozzle (i.e. PCN) as automobile engine, the quality of its performance is to engine
The lubrication of moving piston, cooling effect have extremely important effect.
As shown in figure 1, piston cooling nozzle is made up of check valve 1 and nozzle body 2, based on automobile engine specification, model
Diversity, specification, the model of piston cooling nozzle are also a lot, but its structure type is substantially similar.
The target practice position measurement of piston cooling nozzle is exfactory inspection project, it is desirable to carries out 100% to all products that dispatch from the factory
One hundred percent inspection is tested.
The definition of target practice position is：When charge oil pressure reaches regulation test pressure value, the position of oily beam injection strike.Such as
The detection Eligibility requirements of FL.P68 type piston cooling nozzles：During charge oil pressure 400kPa, it is big that oily beam sprays into flow in designated area
In equal to 90%.
As shown in figure 1, oily beam, which sprays into, specifies area with the space bit of the shape of the wad cutter 3 on target plate 4, size and its central point
Put and provided.The shape of wad cutter 3 is most to be circular, and minority is abnormity.Specification, the model of piston cooling nozzle are different, its target
The locus of the shape in hole 3, size and its central point requires difference.
The test of target practice position is typically completed on piston cooling nozzle performance test stand, with its Opening pressure, closing
The test of pressure, leakage flow, dredge oil amount etc. is together carried out.
Traditional target practice position measurement uses following three kinds of technical methods：
Method one：As shown in Fig. 2 using artificial ocular estimate：High-pressure pump 5 provides high pressure for machine oil, manually adjusts ball
The aperture of valve 6, observation flow sensor 7 (for gathered data, otherwise available stream scale) and pressure sensor 8 are (in order to gather
Data, otherwise available pressure table) reading, when it is determined that the pressure of machine oil reaches target practice position measurement pressure, staff's mesh
The degree that the oily beam sprayed from nozzle body 2 sprays into the wad cutter 3 of target plate 4 is surveyed, whether artificial judgment is qualified.
Method two：As shown in figure 3, using weight method：By the output pressure of program control adjustment pressure regulator 9, one is obtained
The target practice position measurement pressure of the stabilization of section time, control twin shaft cylinder 14 drives baffle plate 11 to move during this, exposes wad cutter 3,
Kept for a period of time by setting value, then control twin shaft cylinder 14 to drive baffle plate 11 to move backward, cover the wad cutter 3 of target plate 4；By
In the effect of wad cutter 3, when oily beam injection target practice position is undesirable, a part for oily beam can be ejected into the outside of wad cutter 3,
The machine oil that measuring cup 12 is collected will be reduced, and collected machine oil weight be measured with weighing sensor 13, by setting weight lower threshold
It is qualified to determine whether.The detection medium machine oil collected in the burst size measuring cup 12 of electromagnet cut off valve 10 is opened in test after terminating.Fig. 3's
High-pressure pump 5, flow sensor 7 and pressure sensor 8 are identical with Fig. 2.
Method three：As shown in Figure 4 and Figure 5, using pattern-recognition method：Apply constant target practice position to piston cooling nozzle
Test pressure, the image of oil beam jetted 17 is obtained by digital camera 18, image procossing is carried out through digital video processing system
Afterwards, the angle of flare, the inclination angle of oil beam jetted 17 are obtained, as shown in fig. 6, determined whether with this it is qualified；Injection is also show in Fig. 4
Case 15 and source of parallel light 16, source of parallel light 16 and reflective mirror 19 are also show in Fig. 5, these parts are to realize number for auxiliary
Word video camera 18 obtains the device of the image of oil beam jetted 17.
The defects of above-mentioned three kinds of conventional methods, is as follows：
Method one：The aperture of the manual regulation ball valve 6 of manual adjustment is needed, when obtaining target practice position measurement pressure, range estimation
Oil beam jetted sprays into the degree of the wad cutter 3 of target plate 4, and whether artificial judgment is qualified, and the detection efficiency of experimental stand is low, operating personnel
Labor intensity it is big, the confidence level of testing result depends on the operative skill and sense of responsibility of operating personnel, not enough accurately.
Method two：The output pressure by program control adjustment pressure regulator 9 is needed, to obtain stable target practice position measurement
Pressure, and the regulation of the output pressure of pressure regulator 9 be the iterative process of an Approach by inchmeal, it is necessary to time-consuming, while machine oil is received
Collection needs enough amounts, it is also desirable to which time-consuming, otherwise test error is larger, and therefore, time-consuming for detection, and detection efficiency is too low, uncomfortable
Close the production testing applied to piston cooling nozzle.
Method three：Situation of the oil beam jetted 17 for cone is only applicable to, is not inherently cone for preferable oily beam
When, preferable oily beam be cone and because piston cooling nozzle nozzle configuration defect causes oil beam jetted when not being cone then not
Be applicable, however, the rejecting of the nozzle configuration defect of the nozzle body of piston cooling nozzle be carry out target practice position measurement purpose it
One, therefore, be not suitable for the production testing applied to piston cooling nozzle；Meanwhile in the production testing of piston cooling nozzle, need
The continuous operation of frequent is wanted, the atomizating phenomenon that detection medium machine oil be present, the image quality of oily beam pattern can be influenceed, cause figure
As producing larger boundary error during processing；In addition, the camera lens of the tank wall of jet box 15, digital camera 18 can also condense, sternly
It will be unable to be imaged during weight, it is also possible to cause this method to be difficult to carry out.
The content of the invention
The purpose of the present invention, which is that, provides that a kind of detection efficiency is high, not examined medium machine in order to solve the above problems
Oil atomization influences and to the oily beam blanket target practice for piston cooling nozzle performance test stand of arbitrary shape
Position measurement device.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of target practice position measurement device for piston cooling nozzle performance test stand, including force cell, umbrella
Shape target, protective case, installing plate and orifice plate, vertical or oblique through hole, institute are each provided with the installing plate and on the orifice plate
State that orifice plate is installed on the installing plate and the through hole of the orifice plate is located in the through hole of the installing plate, the through hole of the orifice plate
Positioned at the lower section of the spout of the nozzle body with the piston cooling nozzle, the umbrella shape target surface of the umbrella shape target is located at the orifice plate
The lower section of through hole, the lower end of the center bearing column of the umbrella shape target bottom are connected with the pressure input of the force cell,
The protective case is set in the center bearing column of the umbrella shape target bottom and the outside of the force cell.
In said structure, orifice plate, umbrella shape target and force cell are most important test components, and other parts are assisted parts
Part；Orifice plate is used for spacing to oil beam jetted progress standard；The umbrella shape target surface of umbrella shape target is easy to the smooth shunting of oil beam jetted, also has
Certain offset load resistance；Force cell is used to detect the target practice power that umbrella shape target receives in real time and be changed into electric signal
Output；Due to being in corresponding linear relationship between target practice power and oil pressure, it is possible to it is determined that in target practice position measurement pressure pair
The lower limit for the target practice power answered, oil beam jetted distort cause can not be completely by the through hole on orifice plate when, target practice power can decline,
When the target practice power of actual test is less than above-mentioned lower limit, then can determine whether for piston cooling nozzle it is unqualified.Above-mentioned force-measuring sensing
Device is using conventional force cell.
Further, Z-shaped rebound, the Z-shaped mistake are also included for the ease of installation, the target practice position measurement device
One end of cab apron is installed on below the force cell and the other end is installed on the installing plate, the Z-shaped transition
Plate is provided with cable-through hole, and the signal transmssion line of the force cell passes through the cable-through hole.
According to application demand, the piston cooling nozzle is installed on the fixture of experimental stand, the target practice position measurement
Device is installed on the fixture and positioned at the lower section of the piston cooling nozzle.
For the ease of installing and applying, the installing plate is generally " l " shaped plate, and the vertical plate of the installing plate, which is provided with, to be used
The transverse plate of the installing plate is located in through hole vertical or oblique on the mounting hole being connected with the fixture, the installing plate
On, plane and the central axis of the nozzle body of the piston cooling nozzle are mutually perpendicular to where the transverse plate of the installing plate.
Overload protective function, the free end of the protective case and the force cell are played to force cell in order to realize
Between gap be 0.5mm.
In order to discharge the detection medium machine oil accidentally entered in protective case in time, the bottom of the protective case is provided with oil leak
Hole.
The beneficial effects of the present invention are：
The target practice power of the oil beam jetted for the through hole that the present invention passes through orifice plate by force cell measurement, so as to pass through
The mode of setting target practice power lower limit judges whether piston cooling nozzle is qualified, obtains whether piston cooling nozzle target practice position fits
When evaluation result, there is high detection efficiency, influence of not examined medium machine oil atomization, universal to the oily beam of arbitrary shape
The advantages of being applicable；Embody as follows：
1st, it is artificial ocular estimate relative to conventional method one, its advantage is as follows：
1.1st, the target practice power of the oil beam jetted of the through hole of orifice plate is passed through using force cell measurement, by under setting target practice power
Limit value determines whether qualified indirect test method, realizes the detection automation of target practice position measurement, the work of operating personnel
Intensity significantly reduces, and the confidence level of testing result is no longer dependent on the operative skill and sense of responsibility of operating personnel；
1.2nd, it is adapted to support the use with automatically controlling the fueller of oil pressure, detection efficiency significantly improves.
2nd, it is weight method relative to conventional method two, its advantage is as follows：
2.1st, real-time target practice power reading is carried out using instantaneous pressure value to measure, without the voltage stabilizing Fuel injection system of certain time,
Detection efficiency significantly improves；
2.2nd, carry out real-time target practice power reading using instantaneous pressure value to measure, avoid charge oil pressure fluctuation weighing results
Influence, experimental stand repeatability increased substantially with repeatability evaluation index.
3rd, it is pattern-recognition method relative to conventional method three, its advantage is as follows：
3.1st, the target practice power of the oil beam jetted of the through hole of orifice plate is passed through using force cell measurement, by under setting target practice power
Limit value determines whether qualified indirect test method, is made to the oily beam of cone, not rounded taper oil beam, because of PCN nozzle configuration defects
Generally it is applicable into oil beam jetted shape variation etc.；
3.2nd, test sensing element uses force cell, the influence of not examined medium machine oil atomization；
3.3rd, target practice position measurement device is relatively inexpensive, install, change, repair it is relatively easy, conveniently.
Brief description of the drawings
Fig. 1 is the structural representation of piston cooling nozzle and corresponding target plate, and wherein target plate is sectional structure；
Fig. 2 is the test device that the i.e. artificial ocular estimate of conventional method one uses；
Fig. 3 is the test device that conventional method two i.e. weight method uses；
Fig. 4 is one of test device that conventional method three i.e. pattern-recognition method uses；
Fig. 5 is the two of the test device that conventional method three i.e. pattern-recognition method uses；
Fig. 6 is the angle of flare for the oil beam jetted that conventional method three i.e. pattern-recognition method is related to, the image schematic diagram at inclination angle；
Fig. 7 is the main view for the piston cooling nozzle performance test stand for including target practice position measurement device of the present invention
Figure；
Fig. 8 is that the right side for the piston cooling nozzle performance test stand for including target practice position measurement device of the present invention regards
Figure；
Fig. 9 is the right view of the present invention for piston cooling nozzle performance test stand target practice position measurement device；
Figure 10 is that master cuts open in the office of the present invention for piston cooling nozzle performance test stand target practice position measurement device
View；
Figure 11 is the sectional view of force cell of the present invention, umbrella shape target and protective case；
Figure 12 is the front view of rebound of the present invention；
Figure 13 is the top view of rebound of the present invention；
Figure 14 is the schematic view of the mounting position of piston cooling nozzle of the present invention and target practice position measurement device；
Figure 15 is the structure chart of the auxiliary installation piece of target practice position measurement device of the present invention；
Figure 16 is that main view is cutd open by the office that target practice position measurement device of the present invention is installed on by auxiliary installation piece on fixture
Figure；
Figure 17 is the right view that target practice position measurement device of the present invention is installed on by auxiliary installation piece on fixture；
Target practice position measurement pressure, target practice power and time when Figure 18 is target practice position measurement device application of the present invention
Corresponding relation curve synoptic diagram.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 7-Figure 14, piston cooling nozzle (including check valve 1 and nozzle body 2) of the present invention is installed on experiment
On the fixture 20 of stand, in the installs fixture 20 of target practice position measurement device 21 of the present invention and it is located at the piston cooling nozzle
Lower section；Target practice position measurement device 21 of the present invention includes force cell 25, umbrella shape target 27, protective case 26, installing plate
22nd, orifice plate 23 and Z-shaped rebound 24, installing plate 22 are generally " l " shaped plate, and the vertical plate of installing plate 22, which is provided with, to be used for and folder
The mounting hole (non-indicating note in figure) of the connection of tool 20, plane where the transverse plate of installing plate 22 and the spray of the piston cooling nozzle
The central axis of mouth body 2 is mutually perpendicular to, and on the transverse plate of installing plate 22 and is each provided with vertical or oblique through hole on orifice plate 23
(not shown), orifice plate 23 is installed on the transverse plate of installing plate 22 and the through hole of orifice plate 23 is located at the transverse plate of installing plate 22
In through hole, the through hole of orifice plate 23 is positioned at the lower section with the spout of the nozzle body 2 of piston cooling nozzle, the umbrella shape target surface of umbrella shape target 27
Positioned at the lower section of the through hole of orifice plate 23, the lower end of the center bearing column of the bottom of umbrella shape target 27 inputs with the pressure of force cell 25
End connection, protective case 26 are set in the center bearing column of the bottom of umbrella shape target 27 and the outside of force cell 25, protective case 26 with
Gap between the free end of force cell 25 is 0.5mm, and the bottom of protective case 26 is provided with oil leaking hole, Z-shaped rebound 24
One end be installed on below force cell 25 and the other end is installed on installing plate 22, Z-shaped rebound 24 was provided with
String holes (non-indicating note in figure), the signal transmssion line of force cell 25 passes through the cable-through hole.
In said structure, because the piston cooling nozzle of different model is to the shape of its wad cutter, size and its central point
Locus requires difference, installing plate, the knot of orifice plate of the target practice position measurement device of different model piston cooling nozzle
Structure size also difference, but its structure type is identical.The range that the force cell 25 of the present embodiment is chosen：2N, test essence
Degree：0.05%.
The part oil-control part used in piston cooling nozzle performance test is also show in Fig. 7：High-pressure pump 5, pressure are adjusted
Device 9, flow sensor 7 are saved, the pressure gauge 8 used in piston cooling nozzle performance test is also show in Fig. 8, also shows in Figure 14
Go out on fixture 20 and be used for the mounting hole 28 for installing installing plate 22.
As shown in Figure 15-Figure 17, in order to facilitate the mounting and adjusting of target practice position measurement device, the present invention also provides a kind of auxiliary
Help installed part, including the mounting seat 29 of interconnection and simulation oil beam post 30, the shape and size simulation spray of simulation oil beam post 30
Penetrate the locus of oily beam and wad cutter central point.
As shown in Figure 16 and Figure 17, the auxiliary installation piece is installed to test on fixture 20 and places piston cooling nozzle to be tried
Position, carry out the contraposition mounting and adjusting of target practice position measurement device wad cutter central point.Using 4 × M3,4 × M5,3 × M8 screws with
Micro adjustment is done to make up the influence of mismachining tolerance in its gap installed between via, makes target practice position measurement device wad cutter center
The locus of point meets the regulation of technical requirements.Finally make in the center of through hole and the summit of simulation oil beam post 30 of orifice plate 23
The heart overlaps, that is, completes the installation of target practice position measurement device 21.
As shown in Fig. 7-Figure 14, when carrying out target practice position measurement, detection charge oil pressure is produced by pressure regulator 9, with pressure
Force snesor 8 tests charge oil pressure, the target practice power of oil beam jetted strike umbrella shape target 27 is tested with target practice position measurement device 21, obtains
Pressure, target practice power test curve are obtained, as shown in figure 18.
Force value of being practiced shooting corresponding to target practice position measurement pressure is read from curve, is determined whether by setting target practice power lower limit
It is qualified；When the target practice position for trying piston cooling nozzle is inappropriate, having the strike of part oil beam to beyond the through hole of orifice plate 23,
Target practice position measurement device 21, which will obtain test target practice power, to be reduced less than setting target practice power lower limit, then can determine whether the piston
Cooling nozzles are unqualified.
Above-described embodiment is presently preferred embodiments of the present invention, is not the limitation to technical solution of the present invention, as long as
The technical scheme that can be realized on the basis of above-described embodiment without creative work, it is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (6)
- A kind of 1. target practice position measurement device for piston cooling nozzle performance test stand, it is characterised in that：Including dynamometry Sensor, umbrella shape target, protective case, installing plate and orifice plate, it is each provided with the installing plate and on the orifice plate vertical or oblique Through hole, the orifice plate is installed on the installing plate and the through hole of the orifice plate is located in the through hole of the installing plate, described The through hole of orifice plate is located at positioned at the lower section with the spout of the nozzle body of the piston cooling nozzle, the umbrella shape target surface of the umbrella shape target The lower section of the through hole of the orifice plate, the lower end of the center bearing column of the umbrella shape target bottom and the pressure of the force cell are defeated Enter end connection, the protective case is set in the center bearing column of the umbrella shape target bottom and the outside of the force cell.
- 2. the target practice position measurement device according to claim 1 for piston cooling nozzle performance test stand, it is special Sign is：The target practice position measurement device also includes Z-shaped rebound, and one end of the Z-shaped rebound is installed on described Below force cell and the other end is installed on the installing plate, and the Z-shaped rebound is provided with cable-through hole, the survey The signal transmssion line of force snesor passes through the cable-through hole.
- 3. the target practice position measurement device according to claim 1 or 2 for piston cooling nozzle performance test stand, its It is characterised by：The piston cooling nozzle is installed on the fixture of experimental stand, described in the target practice position measurement device installation On fixture and positioned at the lower section of the piston cooling nozzle.
- 4. the target practice position measurement device according to claim 3 for piston cooling nozzle performance test stand, it is special Sign is：The installing plate is generally " l " shaped plate, and the vertical plate of the installing plate is provided with the peace for being used for being connected with the fixture Hole is filled, vertical or oblique through hole is on the transverse plate of the installing plate on the installing plate, the transverse plate of the installing plate Place plane and the central axis of the nozzle body of the piston cooling nozzle are mutually perpendicular to.
- 5. the target practice position measurement device according to claim 1 or 2 for piston cooling nozzle performance test stand, its It is characterised by：Gap between the free end of the protective case and the force cell is 0.5mm.
- 6. the target practice position measurement device according to claim 1 or 2 for piston cooling nozzle performance test stand, its It is characterised by：The bottom of the protective case is provided with oil leaking hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223824.4A CN105651522B (en) | 2016-04-12 | 2016-04-12 | Target practice position measurement device for piston cooling nozzle performance test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223824.4A CN105651522B (en) | 2016-04-12 | 2016-04-12 | Target practice position measurement device for piston cooling nozzle performance test stand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105651522A CN105651522A (en) | 2016-06-08 |
| CN105651522B true CN105651522B (en) | 2017-11-24 |
Family
ID=56497274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610223824.4A Active CN105651522B (en) | 2016-04-12 | 2016-04-12 | Target practice position measurement device for piston cooling nozzle performance test stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105651522B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813918B (en) * | 2017-03-15 | 2023-12-29 | 机科发展科技股份有限公司 | Automatic measuring device for piston cooling nozzle |
| CN108051198B (en) * | 2018-01-16 | 2024-04-26 | 重庆安木科技有限公司 | Detection system of piston cooling nozzle |
| CN109141897A (en) * | 2018-08-30 | 2019-01-04 | 航成（天津）科技有限公司 | A kind of aero-engine nozzle flow integrated test system |
| CN110848064B (en) * | 2019-10-31 | 2021-04-16 | 河南百川畅银环保能源股份有限公司 | Device and method for testing oil injection condition of oil injection nozzle in generator set target test |
| CN112781845A (en) * | 2020-12-22 | 2021-05-11 | 中国北方发动机研究所(天津) | Piston cooling nozzle performance test evaluation test bed and evaluation method thereof |
| CN114646460B (en) * | 2022-03-16 | 2023-07-25 | 江铃汽车股份有限公司 | Accurate testing device and method for piston cooling spray pipe |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8661876B2 (en) * | 2011-05-06 | 2014-03-04 | General Electric Company | Apparatus, system, and method for testing a turbocharger |
| CN202693295U (en) * | 2012-07-20 | 2013-01-23 | 法可赛(太仓)汽车配件有限公司 | Nozzle testing device |
| CN103884499B (en) * | 2014-03-27 | 2017-05-10 | 潍柴动力股份有限公司 | Piston hitting test stand |
| CN105181221A (en) * | 2015-09-24 | 2015-12-23 | 北京精密机电控制设备研究所 | Cold air nozzle thrust calibration device and installation method thereof |
| CN105352710B (en) * | 2015-10-20 | 2017-09-05 | 辽宁工程技术大学 | A kind of nozzle real impact domain range test system |
| CN105300221A (en) * | 2015-11-25 | 2016-02-03 | 安徽全柴动力股份有限公司 | Diesel engine piston cooling nozzle testing tool and use method thereof |
| CN205607646U (en) * | 2016-04-12 | 2016-09-28 | 中国工程物理研究院总体工程研究所 | A target practice position testing arrangement for piston cooling nozzle performance experiment bench |
-
2016
- 2016-04-12 CN CN201610223824.4A patent/CN105651522B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105651522A (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105651522B (en) | Target practice position measurement device for piston cooling nozzle performance test stand | |
| CN104977148B (en) | The detection means and method of test chamber angle of attack mechanism pivot | |
| CN102854098B (en) | Nozzle granularity laser test apparatus | |
| CN105257448B (en) | A kind of diesel engine high-pressure fuel system cone valve dynamic and visual realizes device and implementation method | |
| CN204758255U (en) | Detection apparatus for test chamber angle of attack rotation center of mechanism | |
| CN107560836A (en) | A kind of fuel oil single injector circumferentially distributed experimental rig and its test method | |
| CN205607646U (en) | A target practice position testing arrangement for piston cooling nozzle performance experiment bench | |
| CN112683853A (en) | Quantitative test system for liquid phase fuel equivalence ratio of spray section | |
| CN108301952B (en) | Spray oil beam converter and test system and method | |
| CN104048557B (en) | One launches additional load simulation experiment system | |
| CN109029211A (en) | The measuring instrument and measurement method of speed changer shaft axial gap | |
| CN107560838A (en) | A kind of fuel oil single injector radial distribution experimental rig and its test method | |
| CN208187998U (en) | A kind of novel solder skip rosin joint detection line | |
| CN111076875A (en) | Adjustable runner high temperature dynamic seal directly links test device | |
| CN110174356A (en) | A kind of transparency window simulator | |
| CN106092464B (en) | The measurement method of leak detector | |
| CN105784375B (en) | Target practice position measurement sensor for piston cooling nozzle performance test stand | |
| CN208902145U (en) | A kind of unmanned plane sprinkling downwash flow field measuring device based on PIV system | |
| CN108981789A (en) | A kind of unmanned plane sprinkling downwash flow field measuring device and method based on PIV system | |
| CN208921349U (en) | A kind of thrust measurement calibrating installation of aircraft engine test stand frame | |
| DE102014001661A1 (en) | Method for measuring gas stream discharging from nozzle, involves detecting measurement value at different dots of gas stream in flow direction to nozzle where back pressure measurement takes place on different dots | |
| CN204154470U (en) | A kind of supercavity test unit | |
| CN113252440A (en) | Sand creep and stress relaxation coupling test device and using method thereof | |
| CN107883886A (en) | A kind of torque-motor air gap test device and method of testing | |
| CN210243104U (en) | Valve leak detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |