CN2599267Y - Device for fast testing spray form of fuel spray nozzle - Google Patents
Device for fast testing spray form of fuel spray nozzle Download PDFInfo
- Publication number
- CN2599267Y CN2599267Y CNU022938222U CN02293822U CN2599267Y CN 2599267 Y CN2599267 Y CN 2599267Y CN U022938222 U CNU022938222 U CN U022938222U CN 02293822 U CN02293822 U CN 02293822U CN 2599267 Y CN2599267 Y CN 2599267Y
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- digital camera
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- sensor
- stroboscopic
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Abstract
The utility model relates to a device for fast testing spray form of fuel spray nozzle, belonging to combustion engine testing technology. The device mainly comprises a sensor, a central controller, and a stroboscopic camera assembly. The stroboscopic camera assembly comprises a stroboscopic lamp with a stroboscopic lamp controller, a digital camera with a digital camera controller. An amplifying and shaping circuit is arranged for treating the check electric signal outputted from the sensor. In other words, the amplifying and shaping circuit amplifies the electric signal outputted from the sensor and shapes the signal into a square wave signal, which is sent into the central controller via the external signal interface of the central controller. The central control outputs two signals, wherein one is sent to the stroboscopic lamp controller for controlling the stroboscopic lamp, and the other one is sent to the digital camera controller for controlling the digital camera. The utility model can shot the spray form at certain time, and the spray form can be used for analyzing and judging the working ability of the fuel spray nozzle and the impaction to the performance of diesel engine.
Description
Affiliated technical field
The utility model belongs to Measuring Technology for Internal-Combustion Engine, mainly proposes a kind of oil nozzle spray discharge pattern device for fast detecting.
Background technique
At present, spray discharge pattern is as the final form of expression of fuel of internal combustion engine course of injection, and its quality directly has influence on power character, Economy and the emission performance of internal-combustion engine.At present, domestic each internal-combustion engine and oil nozzle manufacturer all can't the large batch of oil nozzle spray discharge patterns of fast detecting, and the nonconforming oil nozzle of oil bundle form will cause the performance of internal-combustion engine bad, and it is very necessary therefore proposing the device that a kind of spray discharge pattern to oil nozzle carries out fast detecting.
Summary of the invention
The purpose of this utility model promptly is to propose a kind of oil nozzle spray discharge pattern device for fast detecting, in order to the quality of detection record oil nozzle spray discharge pattern, thereby provides technical guarantee for quality and the engine performance that improves the oil nozzle product.
The utility model is finished the technological scheme that its invention task taked: device for fast detecting is mainly by sensor, central control unit and stroboscopic photographic device constitute, the stroboscopic photographic device is by frequently interior lamp and strobe lamp controller, digital camera and digital camera controller constitute, wherein, the detection electrical signal of respective sensor output is provided with amplification and rectification circuit, be that the electrical signal that amplification and rectification circuit is exported sensor amplifies, the output square signal is sent into central control unit through the external signal interface of central control unit after the shaping, central control unit output two paths of signals, one the tunnel sends into the strobe lamp controller of control strobe lamp work, the digital camera controller of control digital camera work is sent on another road, digital camera picked-up spray discharge pattern image.
The oil nozzle spray discharge pattern device for fast detecting that the utility model proposes is shot the image of required moment spray discharge pattern, and the image of taking the photograph can be used for analyzing the quality of processing of judging oil nozzle and to the influence of diesel engine performance.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is the amplification and rectification circuit electrical schematic diagram.
Among the figure, 1, fuel injection pump tester, 2, oil nozzle, 3, sensor, 4, strobe lamp, 5, digital camera, 6, the digital camera controller, 7, the strobe lamp controller, 8, amplification and rectification circuit, 9, central control unit.
Embodiment
The embodiment who provides is in conjunction with the accompanying drawings further specified its structure:
As shown in Figure 1, the oil nozzle 2 that detects is installed in fuel injection pump tester 1 or other can provide on the test stand and multi-cylinder engine of oil spout energy, the sensor 3 that detects the oil nozzle state is set, it can be inductive displacement transducer, as the needle lift sensor, utilize iron core the moving in inductance coil that links together with injector valve, the magnitude of voltage at coil two ends is changed, this voltage signal is corresponding with the motion of injector valve; Voltage signal is sent into amplification and rectification circuit, sends into comparator after secondary amplifies, and finally with the form output of square wave, comparative voltage can be regulated on request by potentiometer.The sensor that is provided with also can be piezoelectric pressure transducer, it is installed in the high-pressure oil passage of injection system, and sensor is measured the pressure surge in the oil spout moment high-pressure oil passage according to the piezoelectric principle of crystal, produce different voltage signals, send into amplification and rectification circuit as trigger signal.Inductive displacement transducer (as the needle lift sensor), piezoelectric pressure transducer are existing mature technology.The amplification and rectification circuit that the voltage signal of sensor output is handled is existing ripe circuit engineering, is not described further at this.The square signal of amplification and rectification circuit output is sent to central control unit 9 by the signaling interface of central control unit, central control unit 9 is exported two paths of signals after to the signal comparison process, by 4 work of strobe lamp controller 7 control strobe lamps, another road is by the digital image of digital camera controller 6 control digital cameras 5 picked-up oil nozzle spray discharge patterns respectively.Strobe lamp controller 7 and strobe lamp 4, digital camera controller 6 is existing mature technology with digital camera 5, does not elaborate.
Claims (1)
1, a kind of oil nozzle spray discharge pattern device for fast detecting, it is characterized in that: mainly by sensor (3), central control unit (9) and stroboscopic photographic device constitute, the stroboscopic photographic device is by frequently interior lamp (4) and strobe lamp controller (7), digital camera (5) and digital camera controller (6) constitute, wherein, the detection electrical signal of respective sensor output is provided with amplification and rectification circuit, be that the electrical signal that amplification and rectification circuit is exported sensor amplifies, the output square signal is sent into central control unit (9) through the external signal interface of central control unit after the shaping, central control unit output two paths of signals, one the tunnel sends into the strobe lamp controller (7) of control strobe lamp work, and the digital camera controller (6) of control digital camera work is sent on another road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022938222U CN2599267Y (en) | 2002-12-29 | 2002-12-29 | Device for fast testing spray form of fuel spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022938222U CN2599267Y (en) | 2002-12-29 | 2002-12-29 | Device for fast testing spray form of fuel spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2599267Y true CN2599267Y (en) | 2004-01-14 |
Family
ID=34151869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU022938222U Expired - Fee Related CN2599267Y (en) | 2002-12-29 | 2002-12-29 | Device for fast testing spray form of fuel spray nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2599267Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446742B (en) * | 2008-12-12 | 2010-06-09 | 浙江工业大学 | Abrasive particle strobe photographic equipment |
| CN101657714B (en) * | 2007-03-19 | 2012-05-23 | 报国株式会社 | Mist measuring apparatus |
| CN102506765A (en) * | 2011-10-21 | 2012-06-20 | 中国航空动力机械研究所 | Device for measuring spray cone angle |
| RU2467197C1 (en) * | 2011-07-21 | 2012-11-20 | Государственное образовательное учреждение высшего профессионального образования "Самарский государственный университет путей сообщения" (СамГУПС) | Method of testing and adjusting injectors and test bench to this end |
| CN104142607A (en) * | 2014-07-28 | 2014-11-12 | 天津大学 | Light condensing device used for high-speed camera in microscopic shooting process of nozzle spraying form |
| CN104634279A (en) * | 2013-11-13 | 2015-05-20 | 中国科学院沈阳计算技术研究所有限公司 | Vision-based automatic aviation oil mist nozzle atomization angle detection device and method |
| CN104948369A (en) * | 2015-05-04 | 2015-09-30 | 江苏大学 | Near-field spray imaging device for common-rail injector of diesel engine |
| CN110006906A (en) * | 2019-02-20 | 2019-07-12 | 上海鋆雪自动化有限公司 | A kind of finer atomization spray head detection device and its control method |
| CN110160799A (en) * | 2018-03-23 | 2019-08-23 | 中国人民解放军陆军工程大学 | Timing mark circuit for determining oil injection time of diesel engine |
-
2002
- 2002-12-29 CN CNU022938222U patent/CN2599267Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101657714B (en) * | 2007-03-19 | 2012-05-23 | 报国株式会社 | Mist measuring apparatus |
| CN101446742B (en) * | 2008-12-12 | 2010-06-09 | 浙江工业大学 | Abrasive particle strobe photographic equipment |
| RU2467197C1 (en) * | 2011-07-21 | 2012-11-20 | Государственное образовательное учреждение высшего профессионального образования "Самарский государственный университет путей сообщения" (СамГУПС) | Method of testing and adjusting injectors and test bench to this end |
| CN102506765A (en) * | 2011-10-21 | 2012-06-20 | 中国航空动力机械研究所 | Device for measuring spray cone angle |
| CN102506765B (en) * | 2011-10-21 | 2014-03-26 | 中国航空动力机械研究所 | Device for measuring spray cone angle |
| CN104634279A (en) * | 2013-11-13 | 2015-05-20 | 中国科学院沈阳计算技术研究所有限公司 | Vision-based automatic aviation oil mist nozzle atomization angle detection device and method |
| CN104142607A (en) * | 2014-07-28 | 2014-11-12 | 天津大学 | Light condensing device used for high-speed camera in microscopic shooting process of nozzle spraying form |
| CN104142607B (en) * | 2014-07-28 | 2016-08-17 | 天津大学 | Beam condensing unit for high-speed camera microscopic photography nozzle spray form |
| CN104948369A (en) * | 2015-05-04 | 2015-09-30 | 江苏大学 | Near-field spray imaging device for common-rail injector of diesel engine |
| CN110160799A (en) * | 2018-03-23 | 2019-08-23 | 中国人民解放军陆军工程大学 | Timing mark circuit for determining oil injection time of diesel engine |
| CN110006906A (en) * | 2019-02-20 | 2019-07-12 | 上海鋆雪自动化有限公司 | A kind of finer atomization spray head detection device and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |