CN101419128B - Water cooler for engine test - Google Patents
Water cooler for engine test Download PDFInfo
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- CN101419128B CN101419128B CN200810171542XA CN200810171542A CN101419128B CN 101419128 B CN101419128 B CN 101419128B CN 200810171542X A CN200810171542X A CN 200810171542XA CN 200810171542 A CN200810171542 A CN 200810171542A CN 101419128 B CN101419128 B CN 101419128B
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- water
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- switching value
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
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- Testing Of Engines (AREA)
Abstract
The invention discloses a water temperature cooler and a method for utilizing the water temperature cooler to carry out an engine test. The water temperature cooler comprises a water pump, an electromagnetic valve, a control box and two tee water pipes; a water outlet of the water pump is connected to one tee water pipe through the electromagnetic valve; the other two ends of the tee water pipe are connected with a water inlet of an engine and one end of a PID device; a water return port of the water pump is connected with the other tee water pipe; and the other two ends of the other tee water pipe are connected with a water outlet of the engine and the other end of the PID device. The inside of the control box is provided with a direct current contactor; and the connection between the direct current contactor and a positive electrode of a control power supply is controlled through a switching value control and output port of a bench control system. The water temperature cooler as external equipment utilizes the prior testing system of an engine pedestal and uses an instruction to control and output the switching value signal so as to control the suction of a coil of the direct current contactor, thereby controlling operation of the water pump. The water temperature cooler has the advantages of simple manufacture, cost conservation and obvious effect.
Description
Technical field
The present invention relates to the engine test corollary apparatus, particularly relate to a kind of water cooler and utilize it to carry out the method for engine test.
Background technology
In the engine cold-start fail-test, require sometimes the gentle oil temperature of engine water is quickly cooled to 20 ± 5 ℃, but present opertaing device can't meet this requirement.In order to carry out test and can accurately to control temperature according to test routine fully, therefore carry out this respect research work.
Summary of the invention
When the present invention's solution caused the engine operation because of external equipment, the fluctuation of the difference that Inlet and outlet water warm water is pressed was big, the problem that PID loses control of.Under engine state out of service.Water temperature can be reduced to 20 ± 5 ℃ rapidly.
The invention discloses a kind of water cooler, comprise water pump, solenoid valve, control enclosure and two three water service pipes, the water delivering orifice of water pump is connected to one three water service pipe by solenoid valve, and the two ends in addition of this three water service pipe are used to connect an end of engine water inlet and PID device; The water return outlet of water pump is connected with another three water service pipe, and the two ends in addition of this another three water service pipes are used to connect the other end of engine water delivering orifice and PID device.Be provided with D.C. contactor in the control enclosure, the power lead of water pump and solenoid valve all is connected on the power supply terminal of D.C. contactor.D.C. contactor was controlled with being connected by the switching value control output end mouth of pedestal control system of control positive source.
When utilizing water cooler to carry out engine test, water cooler is linked in the engine water route; Each pipe adapter and flexible pipe junction are with clip card jail; In the expansion kettle, inject chilled water; Water pump and solenoid valve are opened, allowed water be full of its inside; Sth. made by twisting unclasps the gas bolt, and water pipe is exitted, and when waiting expansion kettle water level no longer to descend, stops water filling, the beginning engine test.
Water cooler is as an external equipment, utilize engine pedestal to have test macro now, with an instruction on the computer interface, test macro utilizes the switching value signal to control the adhesive of D.C. contactor coil, thereby reach the open and close of controlling water pump and solenoid valve simultaneously, pump working, the water in the water route will flow, just can control with PID, so just can reach testing requirements water temperature.
The present invention makes simply, saves cost, and effect is obvious.
Description of drawings
Fig. 1: water cooler connection layout;
Fig. 2: water cooler automatically controlled circuit schematic diagram.
Description of reference numerals:
The 1-water cooler;
2-water pump: for the water route circulation provides pressure;
The 3-solenoid valve: two water pipe threeways of may command connect the break-make in this section of water pump water route;
The 4-control enclosure: be used to load the plastic casing of D.C. contactor, waterproof dustproof;
5-three water service pipes: the metal tube head is
Shape is used to transform the water route;
6-D.C. contactor: common control element in the electrical control;
The 10-engine: the object of pilot development, water cooler are mainly served it;
The 11-PID device: proportional plus integral plus derivative controller, belong to intelligent regulating device, the value that can be used for regulating controlling object is infinitely close to desired value.
Embodiment
As shown in Figure 1, water cooler 1 comprises: water pump 2, solenoid valve 3, control enclosure 4 and three water service pipes 5 are parallel in the circulation of engine water route according to the mode of Fig. 1.Water pump 2 water delivering orifices pass through solenoid valve 3 sending and receiving motivations 10 water inlets, engine water delivering orifice water pump 2 water return outlets, and all receive on the PID device 11 by water pipe threeway 5.Solenoid valve 3 place's water pipes are added with bleeder screw.
Under engine 10 running statuses, outer water pump 2 must quit work, and by computer control water pump 2 and solenoid valve 3 is closed simultaneously, and water cycle just without outer water pump 2, reduces hydraulic losses like this; Under engine 10 halted states, engine carries water pump and can not work, and provides hydraulic pressure by external water pump 2, opens water pump 2 and solenoid valve 3 simultaneously by computer, hydraulic pressure is provided for engine 10, plays the effect into the fast prompt drop of engine " temperature ".
Automatically controlled circuit principle such as Fig. 2 of water cooler 1, be provided with D.C. contactor 6 in the control enclosure 4, because of the power supply and the power of electromagnetic valve 3 of water pump 2 all is 220V voltage, so can receive on the power supply terminal of D.C. contactor 6 simultaneously, because of D.C. contactor 6 coil pick-up voltages need a direct-current control voltage, so a direct-current control voltage is provided, just can controls the switch of water pump and solenoid valve as DC24V.6 one control ends of D.C. contactor are directly received stand control power cathode, and another control end is received the switching value control output end mouth of pedestal control system earlier, draws from switching value control output end mouth and connects the control positive source.What switching value control output end mouth was exported is that switching value (close by 0 representative, 1 representative is opened), in computer panel input 0 or 1, by an instruction on the computer interface, system utilizes the switching value signal to control the adhesive of D.C. contactor 5 coils, thereby controls the open and close of water pump 2 and solenoid valve 3 simultaneously.Water pump 2 work, the water in the water route will flow, and just can control water temperature with PID, the opening of device inside so just can directly outside test bay, controlling with closed, thereby reduction labour intensity, the realization safety work reaches testing requirements.
During use, water cooler 1 is linked in the engine water route by Fig. 1 mode goes, each pipe adapter and flexible pipe junction are with clip card jail.In the expansion kettle, inject chilled water, water pump 2 and solenoid valve 3 are opened, allow water be full of its inside, twist with the fingers the bleeder screw at loose vent port place again, it is exitted, when waiting expansion kettle water level no longer to descend, do not need water filling, just can carry out engine test.
Should check earlier also before use that both positive and negative polarity has does not connect instead, and whether the stand electric quantity of power supply is sufficient.
When not having water receiving temperature refrigeratory, it is air-cooled that stand uses blower fan that chilled water is carried out, and approximately needs 25 minutes when reaching 25 ℃ etc. water temperature, and after using water cooler now, probably as long as just can drop to ideal temperature in 10-15 minutes.Shorten the test cycle period greatly, accelerated the test process.
Claims (7)
1. a water cooler (1), comprise water pump (2), solenoid valve (3), control enclosure (4) and two three water service pipes (5), it is characterized in that: the water delivering orifice of water pump is connected to one three water service pipe by solenoid valve, and the two ends in addition of this three water service pipe are used to connect an end of engine (10) water inlet and PID device (11); The water return outlet of water pump (2) is connected with another three water service pipe, the two ends in addition of this another three water service pipes are used to connect the other end of engine (10) water delivering orifice and PID device (11), be provided with D.C. contactor (6) in the control enclosure (4), D.C. contactor (6) was controlled with being connected by the switching value control output end mouth of pedestal control system of stand control positive source, and the three water service pipe places that are connected with solenoid valve (3) are added with bleeder screw.
2. water cooler as claimed in claim 1 (1) is characterized in that: the power lead of water pump (2) and solenoid valve (3) all is connected on the power supply terminal of D.C. contactor (6).
3. water cooler as claimed in claim 1 (1), it is characterized in that: a control end of D.C. contactor (6) is directly received stand control power cathode, another control end is received the switching value control output end mouth of pedestal control system earlier, draws from switching value control output end mouth and connects stand control positive source.
4. utilize each described water cooler of claim 1-3 to carry out the method for engine test, it is characterized in that: water cooler is linked in the engine water route; Each pipe adapter and flexible pipe junction are with clip card jail; In the expansion kettle, inject chilled water; Water pump (2) and solenoid valve (3) are opened, allowed water be full of its inside; Sth. made by twisting unclasps the gas bolt, and water pipe is exitted, and when waiting expansion kettle water level no longer to descend, stops water filling, the beginning engine test.
5. the method for engine test as claimed in claim 4, it is characterized in that: water cooler (1) is linked in the engine water route comprises: an end that will connect three water service pipes (5) of solenoid valve (3) is connected with engine (10) water inlet, and the other end is connected with an end of PID device (11); One end that will connect three water service pipes of water pump (2) is connected with the water delivering orifice of engine (10), and the other end is connected with the other end of PID device (11); One control end of D.C. contactor (6) in the control enclosure (4) is received stand control power cathode, and another control end is received the switching value control output end mouth of pedestal control system, draws from switching value control output end mouth and connects stand control positive source.
6. the method for engine test as claimed in claim 5 is characterized in that: by an instruction on the computer interface, and the switching value signal of gauge tap amount control output end mouth output, and then the adhesive of control D.C. contactor (6) coil.
7. the method for engine test as claimed in claim 6 is characterized in that: check before the beginning engine test whether both positive and negative polarity connects correct, and whether stand is controlled electric quantity of power supply sufficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810171542XA CN101419128B (en) | 2008-10-17 | 2008-10-17 | Water cooler for engine test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810171542XA CN101419128B (en) | 2008-10-17 | 2008-10-17 | Water cooler for engine test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101419128A CN101419128A (en) | 2009-04-29 |
| CN101419128B true CN101419128B (en) | 2011-01-26 |
Family
ID=40630026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810171542XA Active CN101419128B (en) | 2008-10-17 | 2008-10-17 | Water cooler for engine test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101419128B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507201A (en) * | 2011-11-30 | 2012-06-20 | 重庆长安汽车股份有限公司 | Engine cooling system for engine bench test |
| CN103994879A (en) * | 2014-04-18 | 2014-08-20 | 中国北方发动机研究所(天津) | Piston thermal fatigue test apparatus |
-
2008
- 2008-10-17 CN CN200810171542XA patent/CN101419128B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101419128A (en) | 2009-04-29 |
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