CN103195632B - Oil injection nozzle matching part flow grouping testing device and testing method - Google Patents
Oil injection nozzle matching part flow grouping testing device and testing method Download PDFInfo
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- CN103195632B CN103195632B CN201310110136.3A CN201310110136A CN103195632B CN 103195632 B CN103195632 B CN 103195632B CN 201310110136 A CN201310110136 A CN 201310110136A CN 103195632 B CN103195632 B CN 103195632B
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Abstract
The invention relates to an oil injection nozzle matching part flow grouping testing device which comprises an oil injection device performance testing table and testing parts. The testing parts comprise an oil injection device body 1, oil injection nozzle matching parts 2 to be subjected flow grouping, a fastening cap 3, a mist removing device 4 and a pressure screw 5. The oil injection nozzle matching parts 2 to be subjected to flow grouping are installed under the oil injection device body 1 and tightly pressed by the fastening cap 3. The mist removing device 4 is installed under the oil injection nozzle matching parts to be subjected to flow grouping and tightly pressed by the pressure screw 5. The oil injection device body 1 is connected with a pressure accumulator of the oil injection device performance testing table through a high pressure oil pipe, and high pressure fuel oil in the pressure accumulator flows into the oil injection nozzle matching parts 2 to be subjected to flow grouping through the oil injection device body 1 to be sprayed into the mist removing device 4 through spraying holes of the oil injection nozzle matching part bodies. The oil injection nozzle matching part bodies can be subjected to flow consistency grouping quickly and accurately by reading rotating speed of the oil injection nozzle performance test table by means of the device and the corresponding oil injection nozzle part flow grouping testing method, and a special flow testing table can be replaced to reduce detection cost of the oil injection nozzle matching parts.
Description
Technical field
The invention belongs to engine components experimental technique field, be specifically related to a kind of injector nozzle matching parts traffic packet testing apparatus and test method thereof.
Background technique
Oil nozzle is the important component part of fuel system for diesel engine, the structure of injector nozzle matching parts and the fuel flow characteristic of spray orifice inside not only decide atomization quality, sprayed oil beam coordinates with firing chamber, and affect oil injection time, oil injection duration, the injection characteristics such as fuel injection characteristic, but due to reasons such as machining accuracies, even if the flow of the injector nozzle matching parts of same batch neither be on all four, when diesel engine is installed, injector nozzle matching parts traffic packet must be carried out, good for flow conformity injector nozzle matching parts is installed on same motor, ensure each cylinder working conformity of motor, improve the power character of motor, Economy and emission performance.
General injector nozzle matching parts traffic packet test adopts flow test stand.Flow test stand critical component is flow transducer, is directly measured the flow of injector nozzle matching parts by flow transducer, although its measuring accuracy is high, expensive, have certain measuring range, flow transducer is fragile.Add the cost of injector nozzle matching parts traffic packet test.
Summary of the invention
To be solved by this invention is the technical problem that fuel injector flow test stand is expensive, measuring range is less, flow transducer is fragile, the experimentation cost of injector nozzle matching parts traffic packet is high.
Technological scheme of the present invention:
A kind of injector nozzle matching parts traffic packet testing apparatus, comprises fuel injector performance test platform and test parts, and described test parts comprises oil injector body 1, treats the injector nozzle matching parts 2 of traffic packet, tight cap 3, defogger 4, pressure screw 5 form; Treat that the injector nozzle matching parts 2 of traffic packet is arranged on oil injector body 1 time, compressed by tight cap 3, under defogger 4 is arranged on the injector nozzle matching parts treating traffic packet, compressed by pressure screw 5, oil injector body 1 is connected by high-pressure oil pipe with the accumulator of fuel injector performance test platform, high pressure fuel in accumulator is flowed into after the injector nozzle matching parts 2 of traffic packet by oil injector body 1, through the spray orifice of injector nozzle matching parts, sprays into defogger 4.
Described oil injector body 1 adopts inverted funnel structure with the surface of contact of the injector nozzle matching parts 2 treating traffic packet.
A kind of injector nozzle matching parts traffic packet test method, comprises following experimental procedure:
The first step, test parts is installed to fuel injector performance test platform;
Second step, startup fuel injector performance test platform;
The accumulator of the 3rd step, fuel injector performance test platform pressurizes to test(ing) medium, the test(ing) medium after pressurization through test parts oil injector body and treat the injector nozzle matching parts of traffic packet, spray into defogger through injector nozzle matching parts spray orifice;
In 4th step, accumulator, test(ing) medium pressure reduces, and result of variations is passed to fuel injector performance test platform after pressure change being detected by the pressure transducer on accumulator, and fuel injector performance test platform drives oil feed pump rotating speed to change;
After 5th step, fuel injector performance test platform accumulator pressure and oil feed pump stabilization of speed, record accumulator pressure and oil feed pump rotating speed;
The injector nozzle matching parts that 6th step, selection oil feed pump rotating speed are suitable organizes oil sprayer couple as same.
The present invention compared with prior art has following beneficial effect: this testing apparatus adds the test function that fuel injector performance test platform mating plate flow conformity carries out dividing into groups.After fuel injector performance test platform rotating speed, pressure stability, by reading fuel injector performance test platform rotating speed, force value, can mating plate flow conformity divide into groups.Avoid using special couple flow test stand, decrease the loss of flow transducer, reduce the testing cost of couple flow conformity group experiment.
Accompanying drawing explanation
Fig. 1 is test parts structural representation.
Embodiment
A kind of injector nozzle matching parts traffic packet testing apparatus, comprises oil injector body 1, treats the injector nozzle matching parts 2 of traffic packet, tight cap 3, defogger 4, pressure screw 5.
Injector nozzle matching parts traffic packet testing apparatus is connected with high-pressure oil pipe with the accumulator of fuel injector performance test platform.
Oil injector body 1 adopts inverted funnel structure with the surface of contact of the injector nozzle matching parts 2 treating traffic packet.
Fuel injector performance test platform produces test high pressure fuel, and can show oil feed pump rotating speed, accumulator pressure.Accumulator inner high voltage fuel oil flows into oil injector body and treats the injector nozzle matching parts of traffic packet, sprays into defogger through injector nozzle matching parts spray orifice.When high pressure fuel sprays into defogger, accumulator fuel pressure reduces, and result of variations is passed to fuel injector performance test platform after pressure change being detected by the pressure transducer on accumulator, and fuel injector performance test platform drives oil feed pump rotating speed to change.Through after a period of time, accumulator internal pressure is stablized, and after oil feed pump rotating speed is stablized thereupon, reads pressure, the tachometer value of test stand.Utilize the principle that fixed volume internal pressure value increases with oil inlet quantity increase, oil pump capacity increases and reduces.Replace the different injector nozzle matching partses treating traffic packet, read the rotating speed of test stand respectively, parameters speed discrepancy equals to be multiplied by 100% as the objective function of flow conformity group experiment divided by little rotating speed again after large rotating speed deducts little rotating speed, preferred speed discrepancy is less than two injector nozzle matching partses of 2% as same group, can complete the flow conformity group experiment of the injector nozzle matching parts treating traffic packet.
The test(ing) medium used in optimization test is diesel oil or school pump oil.
In optimization test, the test temperature of test(ing) medium is 20 DEG C-30 DEG C.
In test, performance test stand accumulator is 100MPa-180MPa to the steady pressure of test(ing) medium, preferred 150MPa.
Claims (8)
1. an injector nozzle matching parts traffic packet testing apparatus, comprise fuel injector performance test platform and test parts, described test parts comprise oil injector body (1), treat the injector nozzle matching parts (2) of traffic packet, tight cap (3), defogger (4), pressure screw (5) composition; It is characterized in that: under treating that the injector nozzle matching parts (2) of traffic packet is arranged on oil injector body (1), compressed by tight cap (3), under defogger (4) is arranged on the injector nozzle matching parts treating traffic packet, compressed by pressure screw (5), oil injector body (1) is connected by high-pressure oil pipe with the accumulator of fuel injector performance test platform, high pressure fuel in accumulator is flowed into after the injector nozzle matching parts (2) of traffic packet by oil injector body (1), through the spray orifice of injector nozzle matching parts, spray into defogger (4).
2. injector nozzle matching parts traffic packet testing apparatus according to claim 1, is characterized in that: described oil injector body (1) adopts inverted funnel structure with the surface of contact of the injector nozzle matching parts (2) treating traffic packet.
3. an injector nozzle matching parts traffic packet test method, comprises following experimental procedure:
The first step, test parts is installed to fuel injector performance test platform;
Second step, startup fuel injector performance test platform;
The accumulator of the 3rd step, fuel injector performance test platform pressurizes to test(ing) medium, the test(ing) medium after pressurization through test parts oil injector body and treat the injector nozzle matching parts of traffic packet, spray into defogger through injector nozzle matching parts spray orifice;
In 4th step, accumulator, test(ing) medium pressure reduces, and result of variations is passed to fuel injector performance test platform after pressure change being detected by the pressure transducer on accumulator, and fuel injector performance test platform drives oil feed pump rotating speed to change;
After 5th step, fuel injector performance test platform accumulator pressure and oil feed pump stabilization of speed, record accumulator pressure and oil feed pump rotating speed;
The injector nozzle matching parts that 6th step, selection oil feed pump rotating speed are suitable organizes oil sprayer couple as same.
4. injector nozzle matching parts traffic packet test method according to claim 3, is characterized in that: described test(ing) medium is diesel oil or school pump oil.
5. injector nozzle matching parts traffic packet test method according to claim 3, is characterized in that: the test temperature of test(ing) medium is 20 DEG C-30 DEG C.
6. injector nozzle matching parts traffic packet test method according to claim 3, is characterized in that: performance test stand accumulator is 100MPa-180MPa to the steady pressure of test(ing) medium.
7. injector nozzle matching parts traffic packet test method according to claim 3, is characterized in that: performance test stand accumulator is 150MPa to the steady pressure of test(ing) medium.
8. injector nozzle matching parts traffic packet test method according to claim 3, is characterized in that: speed discrepancy is less than two injector nozzle matching partses of 2% as same group.
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| CN201310110136.3A CN103195632B (en) | 2013-04-01 | 2013-04-01 | Oil injection nozzle matching part flow grouping testing device and testing method |
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| CN201310110136.3A CN103195632B (en) | 2013-04-01 | 2013-04-01 | Oil injection nozzle matching part flow grouping testing device and testing method |
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| CN103195632A CN103195632A (en) | 2013-07-10 |
| CN103195632B true CN103195632B (en) | 2015-06-10 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762305B (en) * | 2016-12-27 | 2022-08-09 | 中国船舶重工集团公司第七一一研究所 | Device for preventing oil sprayer positioning pin from being disassembled and assembled and broken and use method thereof |
| CN109372672A (en) * | 2018-09-07 | 2019-02-22 | 机科发展科技股份有限公司 | Flow performance detection method |
| CN109083792A (en) * | 2018-10-09 | 2018-12-25 | 广西玉柴机器股份有限公司 | Judge the system and method for gas nozzle consistency |
| CN109882331B (en) * | 2019-02-28 | 2020-11-13 | 一汽解放汽车有限公司 | Long needle valve fuel sprayer mating parts high pressure flow measuring device |
| CN110555470B (en) * | 2019-08-19 | 2021-10-01 | 一汽解放汽车有限公司 | Oil sprayer grouping method |
| CN113790119B (en) * | 2021-10-09 | 2022-06-10 | 重庆红江机械有限责任公司 | Oil sprayer testing device |
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|---|---|---|---|---|
| US2800791A (en) * | 1952-09-23 | 1957-07-30 | Hartridge Leslie | Apparatus for testing and timing fuel injection pumps |
| CN2856465Y (en) * | 2005-07-22 | 2007-01-10 | 贺启宇 | Automatic detection test bed for oil jetting pump |
| DE102009058932A1 (en) * | 2009-12-17 | 2011-06-22 | AVL Pierburg Instruments Flow Technology GmbH, 41460 | System and method for measuring injection events |
| CN202811157U (en) * | 2012-08-01 | 2013-03-20 | 中国石油化工股份有限公司 | Combined injector checking device |
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2013
- 2013-04-01 CN CN201310110136.3A patent/CN103195632B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2800791A (en) * | 1952-09-23 | 1957-07-30 | Hartridge Leslie | Apparatus for testing and timing fuel injection pumps |
| CN2856465Y (en) * | 2005-07-22 | 2007-01-10 | 贺启宇 | Automatic detection test bed for oil jetting pump |
| DE102009058932A1 (en) * | 2009-12-17 | 2011-06-22 | AVL Pierburg Instruments Flow Technology GmbH, 41460 | System and method for measuring injection events |
| CN202811157U (en) * | 2012-08-01 | 2013-03-20 | 中国石油化工股份有限公司 | Combined injector checking device |
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