CN104847557A - Diesel fuel atomization characteristic testing device for high-pressure common rail system - Google Patents
Diesel fuel atomization characteristic testing device for high-pressure common rail system Download PDFInfo
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- CN104847557A CN104847557A CN201510279264.XA CN201510279264A CN104847557A CN 104847557 A CN104847557 A CN 104847557A CN 201510279264 A CN201510279264 A CN 201510279264A CN 104847557 A CN104847557 A CN 104847557A
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Abstract
The invention relates to diesel fuel atomization testing devices, in particular to a diesel fuel atomization characteristic testing device for a high-pressure common rail system. The diesel fuel atomization characteristic testing system comprises a diesel fuel tank, an electric fuel pump, a high-pressure oil pump, a common rail fuel pipe, an electronic control unit, a fuel atomizer, a high-pressure gas chamber, a nitrogen container and a computer. The diesel fuel atomization characteristic testing device has the advantages that the testing device can be used for simulating diesel fuel atomization characteristic testing of a single-hole fuel atomizer or a multi-hole fuel atomizer, atomization penetration distance and atomization cone angle can be measured simultaneously, and atomization shapes of the multi-hole fuel atomizer can be measured; total fuel atomization quality of rated fuel atomization can be measured, and fuel atomization quantity change under different atomization pressure and different back pressure (pressure of the high-pressure gas chamber) can be conveniently compared; automation characteristics under the change state of the back pressure and the atomization pressure can be tested.
Description
Technical field
The present invention relates to diesel oil atomization detection facility, specifically, relate to a kind of high pressure co-rail system diesel spray characteristic detection and test device.
Background technique
Traditional diesel spray Characteristics Detection technology general analogue measurement single hole oil sprayer diesel spray characteristic, and be generally only limitted in spray characteristics measure Spray Penetration and spray cone angle.
Summary of the invention
The object of the invention is to, provide a kind of high pressure co-rail system diesel spray characteristic detection and test device, to solve above-mentioned technical problem.
For solving the problem, the technical solution adopted in the present invention is:
A kind of high pressure co-rail system diesel spray characteristic detection and test device, is characterized in that: comprise diesel fuel tanks, electric fuel punp, high pressure oil pump, common rail oil pipe, ECU (Electrical Control Unit), oil sprayer, plenum chamber, nitrogen pot and computer; Described diesel fuel tanks is connected with the input port of electric fuel punp, and is provided with diesel-oil filter therebetween; The output port of described electric fuel punp is connected with the input port of high pressure oil pump; The output port of described high pressure oil pump is connected by the input port of pressure regulator valve with common rail oil pipe; The described output port of common rail oil pipe is connected with the input port of oil sprayer; Described electric fuel punp, high pressure oil pump, pressure regulator valve are controlled by ECU (Electrical Control Unit) simultaneously; Described common rail oil pipe is connected with the return opening of diesel fuel tanks by pressure limiting valve; Described oil sprayer is connected with the return opening of diesel fuel tanks, and is controlled by ECU (Electrical Control Unit); Described common rail oil pipe is provided with pressure transducer, and pressure transducer is connected with ECU (Electrical Control Unit); The oil nozzle of described oil sprayer is positioned at plenum chamber; Plenum chamber is connected with computer by air chamber pressure sensor; Computer is also connected with a vidicon camera and No. two vidicon cameras; Also photoflood lamp is provided with outside described plenum chamber; The bottom quality of connection detection device of described plenum chamber, and be connected with nitrogen pot by pipeline, be connected on the pipeline between plenum chamber and nitrogen pot and pressure gauge is housed, the pipeline between pressure gauge and plenum chamber is equipped with stop valve.
Beneficial effect: compared with prior art, the present invention has the following advantages: 1, can be used for simulating single hole oil sprayer or multiple orifice nozzle diesel spray Characteristics Detection; 2, while Spray Penetration and spray cone angle being measured, multiple orifice nozzle spray shapes can be measured; 3, total oil spout quality of oil sprayer specified oil spout number of times can be measured, be convenient to the fuel injection quantity change under more different jet pressure and different back pressure (plenum chamber pressure) state; 4, the detection of spray characteristics under back pressure, jet pressure change state can be realized; 5, photographic camera single in traditional experiment device is replaced with two high-speed cameras, the continuous image of more sprayings can be obtained from two angles, more clearly see spray process development; 6, flash sync flash of light replaces with photoflood lamp and continues light filling, ensures that image is more clear.
Accompanying drawing explanation
Fig. 1 is workflow schematic diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
With reference to Fig. 1, a kind of high pressure co-rail system diesel spray characteristic detection and test device of the present invention, comprises diesel fuel tanks 1, electric fuel punp 3, high pressure oil pump 4, common rail oil pipe 7, ECU (Electrical Control Unit) 9, oil sprayer 10, plenum chamber 19, nitrogen pot 13 and computer 16; Described diesel fuel tanks 1 is connected with the input port of electric fuel punp 3, and is provided with diesel-oil filter 2 therebetween; The output port of described electric fuel punp 3 is connected with the input port of high pressure oil pump 4; 4 output ports of described high pressure oil pump are connected by the input port of pressure regulator valve 5 with common rail oil pipe 7; The output port of described common rail oil pipe 7 is connected with the input port of oil sprayer 10; Described electric fuel punp 3, high pressure oil pump 4, pressure regulator valve 5 are controlled by ECU (Electrical Control Unit) 9 simultaneously.
Described common rail oil pipe 7 is connected by the return opening of pressure limiting valve 6 with diesel fuel tanks 1; Described oil sprayer 10 is connected with the return opening of diesel fuel tanks 1, and is controlled by ECU (Electrical Control Unit) 9.Described common rail oil pipe 7 is provided with pressure transducer 8, and pressure transducer 8 is connected with ECU (Electrical Control Unit) 9.The oil nozzle of described oil sprayer 10 is positioned at plenum chamber 19; Plenum chamber 19 is connected with computer 16 by air chamber pressure sensor 18; Computer 16 is also connected with a vidicon camera 15 and No. two vidicon cameras 17; Photoflood lamp 11 is also provided with outside described plenum chamber 19; The bottom quality of connection detection device 14 of described plenum chamber 19, and be connected with nitrogen pot 13 by pipeline, be connected on the pipeline between plenum chamber 19 and nitrogen pot 13 and pressure gauge 12 is housed, the pipeline between pressure gauge 12 and plenum chamber 19 is equipped with stop valve 20.
In testing apparatus, diesel fuel tanks 1 intermediate fuel oil is flowed to high pressure oil pump through diesel-oil filter 2 by electric fuel punp 3 under ECU (Electrical Control Unit) 9 controls; High pressure oil pump 4 fuel oil delivery pressure is regulated by pressure regulator valve 5, common rail oil pipe 7 will be supplied after diesel supercharging according to ECU (Electrical Control Unit) 9 instruction, common rail pipe plays accumulator, common rail fuel pressure controls by ECU (Electrical Control Unit) 9, the fuel delivery per cycle choosing circulating fuel injection quantity and the high pressure oil pump 4 considering diesel engine of common rail oil pipe 7 volume, ensures that the pressure surge less and rail pressure change response in fuel feeding and injection process mesohigh oil rail 7 is fast; Pressure limiting valve 6 limits common rail oil pipe 7 overpressure, and when instantaneous pressure exceedes limit value, fluid is back to diesel fuel tanks 1 by pressure limiting valve 6, prevents common rail oil pipe burst; Oil sprayer 10 is connected with common rail oil pipe 7 by high-pressure oil pipe, and the solenoid valve of oil sprayer 10 is opened under ECU (Electrical Control Unit) 9 controls, and controls oil sprayer open the endurance by the length of each time pulse; Fuel injector magnetic system open plenum chamber 19, two high-speed cameras of fuel-oil atmozation being sprayed into and being full of nitrogen by light transmission device record atomization image and real-time Transmission to computer 16; The fuel oil post liquefaction presetting injecting times flows into the graduated quality detection device 14 of band, can measure total oil spout quality of specified oil spout number of times; Wherein the gas pressure (back pressure) of plenum chamber 19 can change in test optimum configurations and display in real time.
Claims (1)
1. a high pressure co-rail system diesel spray characteristic detection and test device, is characterized in that: comprise diesel fuel tanks (1), electric fuel punp (3), high pressure oil pump (4), common rail oil pipe (7), ECU (Electrical Control Unit) (9), oil sprayer (10), plenum chamber (19), nitrogen pot (13) and computer (16); Described diesel fuel tanks (1) is connected with the input port of electric fuel punp (3), and is provided with diesel-oil filter (2) therebetween; The output port of described electric fuel punp (3) is connected with the input port of high pressure oil pump (4); The output port of described high pressure oil pump (4) is connected by the input port of pressure regulator valve (5) with common rail oil pipe (7); The output port of described common rail oil pipe (7) is connected with the input port of oil sprayer (10); Described electric fuel punp (3), high pressure oil pump (4), pressure regulator valve (5) are controlled by ECU (Electrical Control Unit) (9) simultaneously; Described common rail oil pipe (7) is connected by the return opening of pressure limiting valve (6) with diesel fuel tanks (1); Described oil sprayer (10) is connected with the return opening of diesel fuel tanks (1), and is controlled by ECU (Electrical Control Unit) (9); Described common rail oil pipe (7) is provided with pressure transducer (8), and pressure transducer (8) is connected with ECU (Electrical Control Unit) (9); The oil nozzle of described oil sprayer (10) is positioned at plenum chamber (19); Plenum chamber (19) is connected with computer (16) by air chamber pressure sensor (18); Computer is also connected with a vidicon camera (15) and No. two vidicon cameras (17); Described plenum chamber (19) outside is also provided with photoflood lamp (11); Bottom quality of connection detection device (14) of described plenum chamber (19), and be connected with nitrogen pot (13) by pipeline, be connected on the pipeline between plenum chamber (19) and nitrogen pot (13) and pressure gauge (12) is housed, the pipeline between pressure gauge (12) and plenum chamber (19) is equipped with stop valve (20).
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| CN201510279264.XA CN104847557A (en) | 2015-05-27 | 2015-05-27 | Diesel fuel atomization characteristic testing device for high-pressure common rail system |
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| CN201510279264.XA CN104847557A (en) | 2015-05-27 | 2015-05-27 | Diesel fuel atomization characteristic testing device for high-pressure common rail system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275700A (en) * | 2015-11-13 | 2016-01-27 | 广西玉柴机器股份有限公司 | Detecting device for electronic control oil injector |
| CN105909444A (en) * | 2016-05-09 | 2016-08-31 | 江苏科技大学 | Marine diesel engine spray field measuring system and method based on three-dimensional PIV |
| CN106153266A (en) * | 2016-06-29 | 2016-11-23 | 无锡职业技术学院 | The tiny leakage test of a kind of fuel injector and seal tightness test system |
| CN106523231A (en) * | 2016-12-30 | 2017-03-22 | 广西玉柴机器股份有限公司 | Detecting device and method for electric controlled fuel sprayer atomization |
| CN106989914A (en) * | 2017-05-28 | 2017-07-28 | 西安成立航空制造有限公司 | A kind of fuel nozzle air pulling liquid type multi-function test stand and its test method |
| CN107269438A (en) * | 2017-06-22 | 2017-10-20 | 北京理工大学 | High pressure co-rail system pressure oscillation and the synchronous acquisition device and method of optical image |
| CN107542614A (en) * | 2017-08-30 | 2018-01-05 | 成都航利电气有限公司 | Fuel nozzle performance test device system |
| RU185419U1 (en) * | 2017-12-21 | 2018-12-04 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный университет путей сообщения" | Diesel injector test bench |
| CN109723591A (en) * | 2018-09-04 | 2019-05-07 | 深圳众为智慧技术有限公司 | Fuel injector detection system |
| CN113175404A (en) * | 2021-04-27 | 2021-07-27 | 中船澄西船舶修造有限公司 | Oil sprayer atomization test bed and test method |
| CN114483406A (en) * | 2022-04-02 | 2022-05-13 | 潍柴动力股份有限公司 | Linear cavitation promotion method and device for diesel engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105275700A (en) * | 2015-11-13 | 2016-01-27 | 广西玉柴机器股份有限公司 | Detecting device for electronic control oil injector |
| CN105909444A (en) * | 2016-05-09 | 2016-08-31 | 江苏科技大学 | Marine diesel engine spray field measuring system and method based on three-dimensional PIV |
| CN106153266A (en) * | 2016-06-29 | 2016-11-23 | 无锡职业技术学院 | The tiny leakage test of a kind of fuel injector and seal tightness test system |
| CN106153266B (en) * | 2016-06-29 | 2018-11-16 | 无锡职业技术学院 | A kind of the tiny leakage test and seal tightness test system of fuel injector |
| CN106523231A (en) * | 2016-12-30 | 2017-03-22 | 广西玉柴机器股份有限公司 | Detecting device and method for electric controlled fuel sprayer atomization |
| CN106989914A (en) * | 2017-05-28 | 2017-07-28 | 西安成立航空制造有限公司 | A kind of fuel nozzle air pulling liquid type multi-function test stand and its test method |
| CN107269438B (en) * | 2017-06-22 | 2019-08-20 | 北京理工大学 | The synchronous acquisition device and method of high pressure co-rail system pressure oscillation and optical image |
| CN107269438A (en) * | 2017-06-22 | 2017-10-20 | 北京理工大学 | High pressure co-rail system pressure oscillation and the synchronous acquisition device and method of optical image |
| CN107542614A (en) * | 2017-08-30 | 2018-01-05 | 成都航利电气有限公司 | Fuel nozzle performance test device system |
| RU185419U1 (en) * | 2017-12-21 | 2018-12-04 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный университет путей сообщения" | Diesel injector test bench |
| CN109723591A (en) * | 2018-09-04 | 2019-05-07 | 深圳众为智慧技术有限公司 | Fuel injector detection system |
| CN109723591B (en) * | 2018-09-04 | 2024-02-23 | 深圳众为智慧技术有限公司 | Oil sprayer detection system |
| CN113175404A (en) * | 2021-04-27 | 2021-07-27 | 中船澄西船舶修造有限公司 | Oil sprayer atomization test bed and test method |
| CN113175404B (en) * | 2021-04-27 | 2024-02-02 | 中船澄西船舶修造有限公司 | Atomization test bed and method for oil sprayer |
| CN114483406A (en) * | 2022-04-02 | 2022-05-13 | 潍柴动力股份有限公司 | Linear cavitation promotion method and device for diesel engine |
| CN114483406B (en) * | 2022-04-02 | 2022-07-29 | 潍柴动力股份有限公司 | Linear cavitation promotion method and device for diesel engine |
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Application publication date: 20150819 |