CN200982262Y - Common rail fuel injector rapid run-in test table - Google Patents
Common rail fuel injector rapid run-in test table Download PDFInfo
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- CN200982262Y CN200982262Y CN 200620121468 CN200620121468U CN200982262Y CN 200982262 Y CN200982262 Y CN 200982262Y CN 200620121468 CN200620121468 CN 200620121468 CN 200620121468 U CN200620121468 U CN 200620121468U CN 200982262 Y CN200982262 Y CN 200982262Y
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Abstract
Provided a co-rail fuel injector quick-speed sharpening experimental bench used for diesel engine co-rail oil spout system, characterized in that the utility model has an electronic distributor (11) and an electronic controller (12) used for controlling the production program of the experimental bench and a hydraulic fuel oil pulsate attenuator (20) used for stabilizing the co-rail pressure. The experimental bench is provided with an anti-oil fog automatic gate (9), an oil temperature controller (40), a multi-station fuel injector fixture (30), a quick change joint (31) and the like. Twelve fuel injectors can be sharpened quickly at the same time. The experimental bench has the advantages that the micro flash in the inner of the fuel injector can be cleared, and running part and the shape and dimension of the metering jet can be stable, thereby stabilizing the properties of the fuel injector and improving the operational reliability. The experimental bench in high working efficiency can set the co-rail pressure, oil spout frequency and the like according to the test requirement.
Description
Technical field
The utility model relates to a kind of run-in stand of diesel injector, particularly relates to a kind of quick run-in stand of common-rail injector that is used for the common rail for diesel engine oil injection system electric control oil injector.
Background technique
The Electrocontrolled high-pressure common rail injection system is a kind of novel fuel system that is applicable to emission control diesel of new generation.Common-rail injector in the co-rail oil injection system (its typical structure is referring to Fig. 1) is by solenoid valve part (8-1), and hydraulic control part (8-2) and oil nozzle part (8-3) are formed.The pressure of high-pressure common rail injection system can be up to more than the 1500bar to 2000bar.So to the turbidity test of common-rail injector inner body, and the break-in of moving parts requires very high.Common-rail injector manufactory must be by quick run-in test before oil sprayer dispatches from the factory, so that residual small burr on the removing part, overlap makes the shape of various movement parts and metering-orifice, and size and surface condition reach steady state by running-in test (running-in test).Thereby occur early stage heel and toe wear after avoiding oil sprayer to dispatch from the factory, influence the stability and the functional reliability of oil sprayer.
In existing patent documentation, the Chinese utility model patent 98208843.4 of Wuxi Oil Pump Nozzle Inst (notification number CN2348125) " oil sprayer short time test platform " is a kind of test stand that is used for the quick run-in of diesel injector, and per minute oil spout number of times can reach 5000 to 20000 times.But it only is applicable to traditional positive injector, is not suitable for new common-rail injector.The pressure source of this test stand does not reach the requirement of common-rail injector, and the electrical pulsing signal of control oil sprayer injection time and fuel injection quantity can not be provided.Chinese patent 95230832.0 can provide pulse signal, but it only is applicable to the maintenance work of gasoline-injection engine oil sprayer.Chinese patent 03232401.4. " diesel engine electric nozzle detection triggers " can be used for the electric-controlled fuel injector of diesel engine, but it does not provide pressure source, can not be used for the quick running-in test of electric-controlled fuel injector.
Summary of the invention:
The purpose of this utility model provides a kind of new quick run-in stand of common rail for diesel engine oil sprayer.
The technical solution of the utility model is a kind of quick run-in stand of common-rail injector that is used for diesel engine electric-controlled oil ejector of design, it comprises: fuel tank (1), oil transfer pump (2), filter cleaner (3), high-pressure fuel-feed pump (4), motor (5) is total to rail (6), safety valve (7), a plurality of common-rail injectors that tried (8), it is characterized in that: (a) have an electronic divider (11), be used to control the oil spout frequency of common-rail injector, fuel injection pulse width and dutycycle; (b). have a test stand electronic controller (12), be used to control the working procedure of test stand; (c). have a high pressure fuel pulsation dampening (20), be used for the common rail pressure in the stable rail (6) altogether.Multi-position injector clamp (30) and quick release coupling (31) are housed on the test stand, can test a plurality of common-rail injectors (8) simultaneously.High-pressure fuel-feed pump in the test stand (4) should adopt in-line arrangement or the rotator type oil feed pump with enough fuel deliveries.For example, can adopt double plunger type oil feed pump.Test stand can be pressurized to 500bar with the common rail pressure that is total in the rail (6), and the fluctuation that can make common rail pressure is less than 0.5%.
The beneficial effects of the utility model are: the running-in effect of test stand is good, and high working efficiency is applicable to that many kinds of common-rail injector are produced in enormous quantities.Test stand adopts the control automatically of electronic divider (11) and electronic controller (12), can set common rail pressure according to test requirements document, oil spout frequency, test parameters such as high-pressure oil feed revolution speed.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is typical common-rail injector structural drawing.
Fig. 2 is embodiment of the present utility model---total figure of the quick run-in stand of common-rail injector.
Fig. 3 is the oil-way system figure of the quick run-in stand of common-rail injector.
Fig. 4 is the circuit block diagram of the quick run-in stand of common-rail injector.
Fig. 5 is the workflow diagram of the quick run-in stand of common-rail injector.
1. fuel tanks among the figure, 2. oil transfer pump, 3. filter cleaner, 4. high-pressure fuel-feed pump, 5. motor 6. is total to rail, 7. safety valve, 8. common-rail injector, 8-1. the solenoid valve part, 8-2. hydraulic part, 8-3. oil nozzle part, 9. automatic door, 10. electrical control cabinet, 11. electronic dividers, 12. electronic controllers, 13. high-pressure oil pipe, 14. return tubes, 20. high pressure fuel pulsation dampenings, 30. multi-station clamp, 31. quick release couplings, 40. oily temperature controllers.
Embodiment:
Common-rail injector shown in Figure 1 (8) is by solenoid valve (8-1), and hydraulic unit (8-2) and oil nozzle (8-3) three parts are formed.Solenoid valve partly comprises the pulse signal input interface, electromagnet or piezo actuator, turnover oil mass hole; Hydraulic part comprises fuel inlet fitting, back leakage connection and control piston; Oil nozzle partly comprises injector valve and needle-valve body.
Fig. 2 is embodiment of the present utility model---total figure of the quick run-in stand of a kind of common-rail injector.In test stand shown in Figure 2, fuel tank (1) is equipped with in the test stand bottom, oil transfer pump (2), filter cleaner (3), high-pressure fuel-feed pump (4) motor (5).Be equipped with more than the test stand table top: be total to rail (6), safety valve (7), the common-rail injector that is tried (8), multi-station clamp (30) and quick release coupling (31) are convenient to test operation.Wherein common-rail injector divides two rows to install, and 6 of every rows can test 12 oil sprayers simultaneously.Oil sprayer (8) according to the break-in of testing regulations regulated procedure after, can remove small burr residual on the common-rail injector inner body, overlap makes the shape of various movement parts and metering-orifice, size and surface condition reach steady state.Electrical control cabinet (10) is arranged in the upper right portion of test stand, comprising electronic divider (11), and electronic controller (12) and circuit board, switch, electric components such as tutorial light.The transparent automatic door (9) that mist of oil splashes when preventing running-in test is housed on test stand.Automatic door during running-in test (9) is closed, and automatic door (9) was opened when break-in finished, so that loading and unloading oil sprayer (8).
Figure .3 is the oil-way system figure of the quick run-in stand of common-rail injector.Shown the glide path of testing in the experimental bench system with fuel oil among the figure.At first, the fuel oil in the fuel tank (1) is by oil transfer pump (2) suction filter (3) upwards.Fuel oil after the filtering enters in the high-pressure fuel-feed pump (4) through oil transfer pump (2).High pressure fuel after the pressurization flows into rail (6) altogether.When common rail pressure was too high, safety valve (7) was opened automatically, and unnecessary fuel oil flows back to fuel tank (1).High pressure fuel pulsation dampening (20) and common rail (6) communicate, and are used for reducing the fluctuation of common rail (6) oil pressure.Altogether rail (6) is connected with each common-rail injector (8) on being installed in test stand by high-pressure oil pipe (13).The order oil spout successively that the oil sprayer follow procedure is set.The injection time of oil sprayer and fuel injection quantity all are subjected to the control of electronic divider (11).Fuel oil by the oil sprayer ejection flows back in the fuel tank (1) through return tube (14).Run-in stand turns round for a long time fast, and back oil is warm can to raise.In order to control the oil temperature, an oily temperature controller (40) that reduces the oil temperature with cooling water is housed on the quick run-in stand of common-rail injector.
In the utility model embodiment's shown in Figure 4 circuit block diagram, electronic controller (12) is a programmable logic controller (PLC) PLC.There is both-way communication to connect between electronic divider among the figure (11) and the electronic controller (12).Electronic divider (11) is being controlled the rotating speed and the fuel delivery of high-pressure fuel-feed pump (4), and is controlling the common rail pressure that is total in the rail (6).Electronic divider (11) is also being controlled the priority job order of 12 common-rail injectors (8) simultaneously; Also control the oil spout frequency of oil sprayer (8) in addition, recently control the injection time and the fuel injection quantity of oil sprayer (8) by adjusting fuel injection pulse width and duty by the signal pulse of output.Programmable logic controller (PLC) PLC (12) is mainly used in according to the test stand working procedure of setting, running by motor (5) control oil transfer pump (2) and high-pressure fuel-feed pump (4), control the opening and closing of transparent automatic door (9), and controlling unclamping and clamping action of multi-station clamp (30) and quick release coupling (31).
Fig. 5 is a kind of embodiment's of the utility model a test stand workflow diagram.In basic procedure shown in Figure 5, first program S01 is on-test, connects power supply.Enter S10 then, starting motor (5) makes oil transfer pump (2) and high-pressure fuel-feed pump (4) entry into service.Program S20 installs the common-rail injector (8) that is tried.After being in place, clamp automatically, and utilize rapid pipe joint (31) to connect the circuit and the oil circuit (S30) of oil sprayer (8) with multi-station clamp (30).In program S40, transparent automatic door (9) follow procedure is closed automatically.Test stand just carries out running-in test (S50) by pressure and the time parameter set then.After break-in finishes, the test stand automatic pressure-relieving, after the retard time that test procedure is set (for example 3 seconds), automatic door (9) is just opened (S60) voluntarily then.At this moment anchor clamps (30) and rapid pipe joint (31) is unclamped automatically, just 12 oil sprayers (8) of finishing break-in can be unloaded (S60).Then, whether need to continue break-in (S80) by tester's decision.Continue other oil sprayers of break-in if desired, then return information S20.If do not need break-in again, then enter program S90.After the shutdown, experiment process finishes (S99).
More than help to understand technology contents of the present utility model about the utility model embodiment's explanation, but do not limit or dwindle the protection domain of the utility model patent.In this scope, fully multiple variation or modification can be arranged.As long as this variation does not have creationary breakthrough to the design of this patent test stand, is that affiliated technical field is well-known, just do not exceed the scope of this patent independence claim yet.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (8)
1. quick run-in stand of common-rail injector, it comprises: fuel tank (1), oil transfer pump (2), filter cleaner (3), high-pressure fuel-feed pump (4), motor (5), rail (6) altogether, safety valve (7), a plurality of common-rail injectors that tried (8) is characterized in that:
A. have an electronic divider (11), be used to control the oil spout order of common-rail injector, oil spout frequency, fuel injection pulse width and dutycycle;
B. have a test stand electronic controller (12), be used to control the working procedure of test stand;
C. have a high pressure fuel pulsation dampening (20), be used for the fuel common-rail pressure in the stable rail (6) altogether.
2. the quick run-in stand of common-rail injector according to claim 1 is characterized in that being equipped with on the test stand multi-position injector clamp (30) and quick release coupling (31).
3. the quick run-in stand of common-rail injector according to claim 1 it is characterized in that wherein the interior common rail pressure of rail (6) is 500bar altogether, and the fluctuation of common rail pressure is less than 0.5%.
4. the quick run-in stand of common-rail injector according to claim 1 is characterized in that the quantity of the common-rail injector (8) wherein tested simultaneously is 12.
5. the quick run-in stand of common-rail injector according to claim 1 is characterized in that high-pressure fuel-feed pump (4) wherein adopts double plunger type oil feed pump.
6. the quick run-in stand of common-rail injector according to claim 1 is characterized in that electronic controller (12) wherein is a programmable logic controller (PLC) PLC.
7. the quick run-in stand of common-rail injector according to claim 1 is characterized in that being equipped with the transparent automatic door (9) that mist of oil splashes when preventing running-in test on test stand.
8. the quick run-in stand of common-rail injector according to claim 1 is characterized in that being equipped with an oily temperature controller (40) that reduces the oil temperature with cooling water on test stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620121468 CN200982262Y (en) | 2006-06-30 | 2006-06-30 | Common rail fuel injector rapid run-in test table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620121468 CN200982262Y (en) | 2006-06-30 | 2006-06-30 | Common rail fuel injector rapid run-in test table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982262Y true CN200982262Y (en) | 2007-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620121468 Expired - Fee Related CN200982262Y (en) | 2006-06-30 | 2006-06-30 | Common rail fuel injector rapid run-in test table |
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| CN (1) | CN200982262Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062106A (en) * | 2013-07-30 | 2014-09-24 | 湖北三江航天万山特种车辆有限公司 | Control system for hydraulic running-in test of slewing raceway |
| CN108223227A (en) * | 2017-12-29 | 2018-06-29 | 中船动力研究院有限公司 | A kind of gas fuel injection valves it is multifunction detection-test bed |
| CN108301920A (en) * | 2018-01-29 | 2018-07-20 | 中国第汽车股份有限公司 | Common rail pipe assembly impurity collection device |
| CN110067685A (en) * | 2019-04-30 | 2019-07-30 | 上海海事大学 | A kind of needle valve movement speed is controllable and the adjustable ejection testing device of needle lift |
| RU206134U1 (en) * | 2021-06-07 | 2021-08-24 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | UNIT FOR HYDRAULIC LOADING OF COMMON RAIL SYSTEMS |
-
2006
- 2006-06-30 CN CN 200620121468 patent/CN200982262Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062106A (en) * | 2013-07-30 | 2014-09-24 | 湖北三江航天万山特种车辆有限公司 | Control system for hydraulic running-in test of slewing raceway |
| CN104062106B (en) * | 2013-07-30 | 2016-11-02 | 湖北三江航天万山特种车辆有限公司 | Revolution raceway hydraulic pressure running-in test control system |
| CN108223227A (en) * | 2017-12-29 | 2018-06-29 | 中船动力研究院有限公司 | A kind of gas fuel injection valves it is multifunction detection-test bed |
| CN108301920A (en) * | 2018-01-29 | 2018-07-20 | 中国第汽车股份有限公司 | Common rail pipe assembly impurity collection device |
| CN110067685A (en) * | 2019-04-30 | 2019-07-30 | 上海海事大学 | A kind of needle valve movement speed is controllable and the adjustable ejection testing device of needle lift |
| CN110067685B (en) * | 2019-04-30 | 2020-05-05 | 上海海事大学 | Injection test device with controllable needle valve movement speed and adjustable needle valve lift |
| RU206134U1 (en) * | 2021-06-07 | 2021-08-24 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | UNIT FOR HYDRAULIC LOADING OF COMMON RAIL SYSTEMS |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA FIRST AUTOMOBILE WORKS GROUP CORPORATION Free format text: FORMER OWNER: WUXI INST. OF OIL PUMP INJECTOR Effective date: 20120229 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214063 WUXI, JIANGSU PROVINCE TO: 130011 CHANGCHUN, JILIN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120229 Address after: 130011 No. 2259 Dongfeng Avenue, West New Economic and Technological Development Zone, Changchun Patentee after: China FAW Group Corporation Address before: 214063 Jiangsu city of Wuxi province Qian Rong Lu No. 15 Patentee before: Wuxi Inst. of Oil Pump Injector |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20130630 |