CN101706369A - Coolant system of heat testing machine of automobile engine and coolant supplying method - Google Patents
Coolant system of heat testing machine of automobile engine and coolant supplying method Download PDFInfo
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- CN101706369A CN101706369A CN200810146938A CN200810146938A CN101706369A CN 101706369 A CN101706369 A CN 101706369A CN 200810146938 A CN200810146938 A CN 200810146938A CN 200810146938 A CN200810146938 A CN 200810146938A CN 101706369 A CN101706369 A CN 101706369A
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- liquid coolant
- coolant
- valve
- control valve
- engine
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- 239000002826 coolant Substances 0.000 title claims abstract description 127
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims description 89
- 238000011084 recovery Methods 0.000 claims description 12
- 238000010926 purge Methods 0.000 claims description 11
- 230000002950 deficient Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000005429 filling process Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract 3
- 230000033764 rhythmic process Effects 0.000 abstract 3
- 238000007664 blowing Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
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Abstract
The invention discloses a coolant system of a heat testing machine of an automobile engine and a treatment method. The invention heats the coolant to be about 80 DEG C, thus saving the warming-up time when in heat test and reducing production rhythm; the filling is carried out automatically and the coolant is recovered, thus reducing the production rhythm; compressed air is used to carry out leakage test on the whole pipeline before the engine runs so as to solve the problem that the coolant pipeline is aged to produce leaked coolant; if the leakage is generated, the following test steps are not carried out. The water pump is used for automatically filling the coolant before the engine runs, and after the engine test is finished, the coolant in the pipeline is recovered by a mode of combining compressed air blowing and a vacuum generator so as to solve the problem of residual coolant after the heat test. Compared with the original cooling system of the heat testing machine, the system and the method shorten the production rhythm and avoid the leakage of the coolant system when the engine is in the heat test.
Description
Technical field
The present invention relates generally to the coolant system and the disposal route of the hot test-run a machine of motor car engine.
Background technology
The coolant system of engine thermal test-run a machine mainly is responsible for liquid coolant necessary when the engine supply engine turns round, and is identical with the function of car load.But the coolant system of hot test-run a machine but has its oneself singularity.
The productive temp of at first whole heat examination is very short.Secondly, after the engine thermal examination finished, remaining a large amount of liquid coolants in the engine connected if directly remove, and will cause remaining liquid coolant to be leaked in a large number, on the one hand contaminated environment, cost of idleness on the other hand.
The coolant system of hot test-run a machine in the past is similar to the coolant system of car load, and just minimum coolant pipe pipeline connector place increases by a water drain valve in the position of engine.The subject matter that exists is:
1, the time that discharges water is very long, influences productive temp;
2, the liquid coolant to the engine filling is the normal temperature state, and the temperature that the engine thermal examination need reach liquid coolant is about about 90 degree, and whole warm-operation process is oversize, influences productive temp.
3, need manually add inject cooling liquid, influence productive temp;
4, the engine cool liquid pipeline is aging, is easy to generate leakage;
5, owing to the scrambling of engine pipelines, some liquid coolants discharge water by water drain valve, can not drain fully, and in the process of engine transportation, liquid coolant is leaked serious;
6, owing to the leakage of liquid coolant, cost of idleness is serious.
Problem to be solved by this invention is to shorten productive temp, and the problem that does not have the liquid coolant leakage in the whole process of test.
Summary of the invention
To achieve these goals: liquid coolant is heated, be about about 80 degree, the warm-up period when saving the heat examination has reduced productive temp.Automatically annotate, reclaim liquid coolant, reduced productive temp.Before engine running, utilize pressurized air to carry out, to solve the aging problem of leaking liquid coolant that produces of liquid coolant pipeline to whole pipeline leak test.Leak if produce, do not carry out follow-up testing procedure.Automatically add inject cooling liquid with water pump before the engine running.After Engine Block Test is finished, blow the mode that combines with vacuum generator by pressurized air, the liquid coolant in the reclaim line is to solve the problem of the remaining liquid coolant after heat is tried.
Adopt said method, compared, shortened productive temp, stop the leakage of coolant system when engine thermal is tried with former hot test-run a machine coolant system.
Description of drawings
Fig. 1 is a systematic schematic diagram of the present invention.
Description of reference numerals:
1, water tank; 2, water pump; 3, pressure-regulating valve; 4, temperature sensor; 5, liquid level gauge;
6, vacuum generator; 7, coolant pressure sensor; 8, liquid coolant fill valve;
9, liquid coolant return control valve; 10, purge valve; 11, vacuum generator operation valve;
12, replenishment valve; 13, ventilation valve; 14, well heater; 15, air release;
16, liquid coolant recovery control valve;
Embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing 1:
One, the effect of critical piece:
Well heater 14: the temperature of heated cooling fluid, reduce productive temp.
Temperature sensor 4: whether the Numerical Control well heater according to sensor measurement works, and the temperature of liquid coolant is controlled between 70～80 degree.
Water pump 2: for engine is supplied with liquid coolant automatically.
Pressure-regulating valve 3: the output pressure of water pump is reduced, otherwise will influence the operate as normal of engine water pump.
Liquid level gauge 5: measure the liquid level of water tank, if liquid level is low excessively, system will control replenishment valve and open, and replenish liquid coolant.
Vacuum generator 6: produce vacuum, suck back liquid coolant;
Replenishment valve 12: after every engine thermal examination, need take away certain liquid coolant; The signal that replenishment valve provides according to liquid level gauge, when liquid level is crossed when low, additional liquid coolant in the water tank.
Ventilation valve 13: have only vacuum pump work, require ventilation valve to close, guarantee that in the water tank be sealed space, produce vacuum; All the other each duties are normally open, to prevent rising or the decline owing to liquid level, produce pressure in water tank.
Imbody in the description that acts on the following course of work of all the other each valves.
Two, the course of work:
The coolant system of hot test-run a machine at first carries out the heating work of liquid coolant, and the temperature of liquid coolant is remained between 70～80 degree.
The coolant system course of work is divided into: leak test, filling, running and four steps of emptying.Coolant system at first carries out leak test to the liquid coolant pipeline; If leak test is qualified, carry out next step filling work; If defective, stop action, wait for artificially and handling.Then, opening water pump annotates.After filling was finished, engine can turn round normally.After Engine Block Test finished, coolant system reclaimed liquid coolant, and concrete substep is described below:
Leak test: liquid coolant fill valve 8, liquid coolant return control valve 9, air release 15 and liquid coolant recovery control valve 16 are closed, purge valve 10 is opened the regular hour inflation, then purge valve 10 is closed, measure coolant pressure by pressure transducer 7 after waiting for the regular hour, gaging pressure once more after waiting for the regular hour again judges according to the coolant pressure difference whether coolant system leaks.The action of all the other each parts is in original state in the leak test stage.
Filling: water pump 2 is started working, and liquid coolant fill valve 8, liquid coolant return control valve 9, air release 15 and liquid coolant recovery control valve 16 are closed.By the coolant pressure of pressure transducer 7 detection systems, after coolant pressure reaches setting, open 1 second of air release, emit the bubble that remains in the engine, filling finishes.Action at these all the other each parts of stage is in original state.
Running: carry out Engine Block Test, coolant system is in operating condition, and the state of the state of each parts when annotating is identical.
Emptying: after Engine Block Test is finished, at first switch off the pump 2 and liquid coolant fill valve 8, open liquid coolant return control valve 9 and liquid coolant recovery control valve 16, the liquid coolant in the discharge conduit; Open purge valve 10, the liquid coolant in the pipeline is blown get back in the water tank; Open vacuum generator operation valve 6, close remaining valve, make coolant pipe produce vacuum, after the regular hour, open liquid coolant return control valve 9 and liquid coolant recovery control valve 16 excessively, liquid coolant remaining in the pipeline is sucked back water tank.
Claims (8)
1. the coolant system of an engine thermal test-run a machine, comprise water tank, well heater, temperature sensor, water pump, pressure-regulating valve, liquid level gauge, vacuum generator and leakage testing device, heater heats liquid coolant wherein, the work of temperature sensor control heater is controlled within the specific limits the temperature of liquid coolant; Leakage testing device is used to judge whether coolant system leaks; Vacuum generator makes coolant pipe produce vacuum, is used for the liquid coolant that pipeline is remaining and sucks back water tank.
2. coolant system as claimed in claim 1 is characterized in that: whether temperature sensor works according to the Numerical Control well heater of measuring, and the temperature of liquid coolant is controlled between 70～80 degree.
3. coolant system as claimed in claim 1 or 2, it is characterized in that: leakage testing device comprises the liquid coolant fill valve, the liquid coolant return control valve, purge valve, the liquid coolant recovery control valve, air release, and pressure transducer, during leak test with the liquid coolant fill valve, the liquid coolant return control valve, air release and liquid coolant recovery control valve are closed, purge valve is opened the regular hour inflation, then purge valve is closed, measure coolant pressure by pressure transducer after waiting for the regular hour, gaging pressure once more after waiting for the regular hour again judges according to the coolant pressure difference whether coolant system leaks.
4. the liquid coolant supply method of an engine thermal test-run a machine comprises the steps:
Heating utilizes the heater heats liquid coolant, and the work of temperature sensor control heater is controlled within the specific limits the temperature of liquid coolant;
Leak test, leakage testing device carries out leak test to the liquid coolant pipeline, if leak test is qualified, carries out next step filling work; If defective, then stop action, wait for artificially and handling;
Filling is opened water pump after leak test is qualified and is annotated, and after filling was finished, engine can run well;
Emptying, after Engine Block Test finished, coolant system carried out liquid coolant and reclaims.
5. liquid coolant supply method as claimed in claim 4 is characterized in that: temperature sensor is controlled between 70～80 degree temperature of liquid coolant.
6. as claim 4 or 5 described liquid coolant supply methods, it is characterized in that: leakage testing device comprises the liquid coolant fill valve, the liquid coolant return control valve, purge valve, the liquid coolant recovery control valve, air release, and pressure transducer, during leak test with the liquid coolant fill valve, the liquid coolant return control valve, air release and liquid coolant recovery control valve are closed, purge valve is opened the regular hour inflation, then purge valve is closed, measure coolant pressure by pressure transducer after waiting for the regular hour, gaging pressure once more after waiting for the regular hour again judges according to the coolant pressure difference whether coolant system leaks.
7. as each described liquid coolant supply method of claim 4-6, it is characterized in that, filling process is: water pump is started working, liquid coolant fill valve, liquid coolant return control valve, air release and liquid coolant recovery control valve are closed, by the coolant pressure of pressure transducer detection system, after coolant pressure reaches setting, open the air release certain hour, emit the bubble that remains in the engine, filling finishes.
8. as each described liquid coolant supply method of claim 4-7, it is characterized in that evacuation procedure is: after Engine Block Test is finished, at first switch off the pump and the liquid coolant fill valve, open liquid coolant return control valve and liquid coolant recovery control valve, the liquid coolant in the discharge conduit; Open purge valve then, the liquid coolant in the pipeline is blown get back in the water tank; Open the vacuum generator operation valve, close remaining valve, make coolant pipe produce vacuum,, open liquid coolant return control valve and liquid coolant recovery control valve, liquid coolant remaining in the pipeline is sucked back water tank through after the regular hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101469389A CN101706369B (en) | 2008-08-27 | 2008-08-27 | Coolant system of heat testing machine of automobile engine and coolant supplying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101469389A CN101706369B (en) | 2008-08-27 | 2008-08-27 | Coolant system of heat testing machine of automobile engine and coolant supplying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101706369A true CN101706369A (en) | 2010-05-12 |
| CN101706369B CN101706369B (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101469389A Expired - Fee Related CN101706369B (en) | 2008-08-27 | 2008-08-27 | Coolant system of heat testing machine of automobile engine and coolant supplying method |
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| Country | Link |
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| CN (1) | CN101706369B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897174A (en) * | 2012-10-31 | 2013-01-30 | 中国北车集团大连机车车辆有限公司 | Liquid filling and recycling device of locomotive cooling system |
| CN106370427A (en) * | 2016-09-12 | 2017-02-01 | 西安航天动力试验技术研究所 | Recyclable cooling medium accurate supply system |
| CN109115504A (en) * | 2018-09-26 | 2019-01-01 | 安徽江淮汽车集团股份有限公司 | Temperature control cooling recirculation system |
| CN109470484A (en) * | 2018-12-26 | 2019-03-15 | 绵阳亿丰达智能装备有限公司 | A kind of engine thermal is on probation to blow water system and blows water method |
| CN109580122A (en) * | 2018-12-12 | 2019-04-05 | 中国北方发动机研究所(天津) | A kind of engine assembly detection hydrostatic testing machine and application method |
| CN114261943A (en) * | 2021-12-20 | 2022-04-01 | 上海空间推进研究所 | Automatic continuous vacuumizing and filling device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1286107B1 (en) * | 1996-06-18 | 1998-07-07 | Simpro S P A | METHOD AND SYSTEM FOR CARRYING OUT COLD TESTS ON AN INTERNAL ICE ENGINE AND ENGINE SUITABLE TO BE TESTED WITH THIS METHOD. |
| US6823726B1 (en) * | 2000-09-21 | 2004-11-30 | General Motors Corporation | Method and system of simulating a cold or hot start automobile emissions test |
-
2008
- 2008-08-27 CN CN2008101469389A patent/CN101706369B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897174A (en) * | 2012-10-31 | 2013-01-30 | 中国北车集团大连机车车辆有限公司 | Liquid filling and recycling device of locomotive cooling system |
| CN102897174B (en) * | 2012-10-31 | 2015-08-19 | 中国北车集团大连机车车辆有限公司 | The liquid filling of motorcycle cooling system and regenerative apparatus |
| CN106370427A (en) * | 2016-09-12 | 2017-02-01 | 西安航天动力试验技术研究所 | Recyclable cooling medium accurate supply system |
| CN109115504A (en) * | 2018-09-26 | 2019-01-01 | 安徽江淮汽车集团股份有限公司 | Temperature control cooling recirculation system |
| CN109580122A (en) * | 2018-12-12 | 2019-04-05 | 中国北方发动机研究所(天津) | A kind of engine assembly detection hydrostatic testing machine and application method |
| CN109580122B (en) * | 2018-12-12 | 2020-10-20 | 中国北方发动机研究所(天津) | Hydraulic testing machine for engine assembly detection and application method |
| CN109470484A (en) * | 2018-12-26 | 2019-03-15 | 绵阳亿丰达智能装备有限公司 | A kind of engine thermal is on probation to blow water system and blows water method |
| CN109470484B (en) * | 2018-12-26 | 2023-11-28 | 绵阳亿丰达智能装备有限公司 | Water blowing system and water blowing method for engine heat trial |
| CN114261943A (en) * | 2021-12-20 | 2022-04-01 | 上海空间推进研究所 | Automatic continuous vacuumizing and filling device |
| CN114261943B (en) * | 2021-12-20 | 2024-04-09 | 上海空间推进研究所 | Automatic continuous vacuumizing and filling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101706369B (en) | 2011-02-16 |
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Granted publication date: 20110216 Termination date: 20210827 |