CN202547943U - Low-pressure simulation test platform for engine - Google Patents
Low-pressure simulation test platform for engine Download PDFInfo
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- CN202547943U CN202547943U CN2012201298014U CN201220129801U CN202547943U CN 202547943 U CN202547943 U CN 202547943U CN 2012201298014 U CN2012201298014 U CN 2012201298014U CN 201220129801 U CN201220129801 U CN 201220129801U CN 202547943 U CN202547943 U CN 202547943U
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Abstract
The utility model discloses a low-pressure simulation test platform for an engine. The low-pressure simulation test platform comprises a closed box, a temperature adjusting device, a pressure adjusting device and an engine cooling device are arranged on the box, and a dynamometer, a dynamometer cooling device and an engine oil supply device are arranged in the box. The low-pressure simulation test platform for the engine can be used for simulating a low-pressure environment of a plateau in a low-altitude zone, so that the engine is conveniently tested.
Description
Technical field
The utility model relates to a kind of engine performance measuring platform, relates in particular to a kind of engine performance measuring platform that can simulate the low pressure atmospheric environment.
Background technology
Common vehicular engine uses diesel oil or gasoline to act as a fuel.Because the air pressure on the plateau is low, oxygen level is low; For example the atmospheric pressure in Golmud, Qinghai almost is the half the of Yulin Prefecture, Guangxi; When common engine was worked in high height above sea level area, there was very big difference in-engine oil inflame situation and low altitude area.The vehicle of common engine is equipped with; In a single day work is very normal in the low altitude area, just is easy on the plateau cast anchor but arrived, exactly because the air atmosphere on plateau forces down, oxygen level is low; Fuel oil can not fully burn in engine, can't export enough power.For let engine can be on the plateau operate as normal, must adjust parameters such as the air inflow of engine under low-pressure state, oil mass.Be transported to engine that to test on the plateau be a fit closely way, still, set up the financial resource and material resource that the laboratory not only needs labor, staff's health is also had very adverse influence in the area, plateau.Need to occur a kind of can be on the simulated high altitude of flat-bottomed land the proving installation of hypobaric.
The utility model content
The utility model is in order to overcome above-mentioned defective of the prior art, a kind of engine low pressure analog testing platform to be provided, and it can provide convenience for the test of engine at the hypobaric of low height above sea level area simulated high altitude.
For realizing above-mentioned purpose, the openly following technical scheme of the utility model:
A kind of engine low pressure analog testing platform comprises an airtight casing, and this casing is provided with temperature control equipment, barometric control unit and engine cooling apparatus, is provided with dynamometer machine, dynamometer machine cooling device and oil-feeding device for engine in this casing.
Further, also be provided with Temperature Humidity Sensor, pressure transducer and at least one camera in the said casing.
Further, said temperature control equipment is the air-conditioning unit, and it is that enclosure-type connects with being connected of said casing.
Further, said barometric control unit is the exhausting unit, and it is that enclosure-type connects with being connected of said casing, and its air pressure adjustment scope is 55KPa～101KPa, and its air intake opening place is provided with the air inlet adjustment valve; The air-supply inlet of said air-conditioning unit is positioned at above-mentioned exhausting unit.
Further, said engine cooling apparatus is a water cooling plant, and the heat exchanging part of this water cooling plant is arranged on the outside of said casing; In said casing, be provided with the expansion tank of opened type, this expansion tank is connected with the circulation waterway of said engine cooling apparatus, and the water in the expansion tank is directly exposed in the air in the said casing.
Further, said dynamometer machine is reaction type electric power dynamometer machine or electric eddy current dynamometer.
Further, said dynamometer machine cooling device is a water-cooled chiller, has the chilled water circulation line of sealing and heat interchanger independently.
Further, said oil-feeding device for engine comprises the oil feed line of sealing and fuel cools device independently.
Further, said casing is a steel box section, and its maximum compressive resistance is 50 tons/square metre at least.
Compared with prior art, the utlity model has following beneficial effect:
1, through in the confined space of the scalable negative pressure while pressure of anti-high strength, testing; Cooperate with it through outdoor air-conditioning unit simultaneously; Solve engine and can't simulate engine test problem under the low-pressure state at normal temperatures and pressures, be similar to the environment on plateau, make the data that test out more near truth through simulating a ultralow pressure; Have more reference value, thereby the financial resources, the material resources that need not labor reach and test to extremely frigid zones in certain period of time.
2, the air pressure adjustment scope of exhausting unit is 55KPa～101KPa, can guarantee that like this air pressure in the casing can simulate the air pressure environmental baseline that (is slightly less than 100KPa) from the Plain to Qinghai-Tibet (being slightly larger than 55KPa).
3, the air-supply inlet (being the inlet scoop) with the air-conditioning unit is arranged in the exhausting unit; Make the entrance and exit air pressure of air-conditioning unit all with in the casing keep unanimous on the whole; Can prevent air-conditioning unit suction air outside casing, thereby avoid the danger of the excessive generation of air-conditioning unit inside and outside differential pressure.
4, reaction type electric power dynamometer machine and electric eddy current dynamometer can not receive the influence that atmospheric pressure changes in the course of the work, can access enough accurate numerical value, guarantee that result of experiment is reliable.
5, oil-feeding device for engine is arranged in the casing; Can reduce gaseous tension disturbs the fluctuation of engine oil and test macro generation; The fuel cools device adopts independently that heat interchanger can completely cut off the influence of gaseous tension to fuel pipe, guarantees that result of experiment is reliable.
6, uncovered expansion tank is arranged in the casing, and independently heat interchanger heat exchange is adopted in the engine cool water route, can completely cut off the influence that the outside gaseous tension of casing produces the engine cool water route, guarantees that result of experiment is reliable.
7, use the circulation waterway of sealing and heat interchanger independently in the cooling device of dynamometer machine, can completely cut off the influence that the outside gaseous tension of casing produces the engine cool water route, guarantee that result of experiment is reliable.
8, the camera that is provided with in the casing can make things convenient for the experimenter to monitor and write down whole test process, helps to improve the intuitive of experimentation, also helps the ex-post analysis experimentation.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the schematic diagram of dynamometer machine cooling device;
Fig. 3 is the cool cycles schematic diagram of fueller.
In conjunction with the accompanying drawing following Reference numeral of mark above that:
The 1-casing, 2-air-conditioning unit, 3-exhausting unit, 4-air inlet adjustment valve, the 5-exhaust pipe of engine, 6-Temperature Humidity Sensor; The 7-pressure transducer, 8-dynamometer machine cooling device, 9-dynamometer machine, 10-engine, 11-fueller; The 12-engine cooling apparatus, 13-expansion tank, 21-camera, 81-pump motor, 82-separate exchangers; The 83-water supply electromagnetic valve, 111-fuel tank, 112-fuel solenoid valve, 113-fuel consumption meter, 114-separate exchangers.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiment of the utility model is described in detail, but the protection domain that is to be understood that the utility model does not receive the restriction of embodiment.
A kind of engine low pressure analog testing platform, as shown in Figure 1, comprise an airtight casing 1 of processing by withstand voltage special steel, its maximum compressive resistance is at least 50 tons/square metre.Casing 1 is provided with air-conditioning unit 2, exhausting unit 3 and engine cooling apparatus 12.Be provided with dynamometer machine 9, dynamometer machine cooling device 8 in the casing 1 and give the fueller 11 of engine 10 fuel feeding.In order to guarantee the impermeability of casing 1, air-conditioning unit 2 all is that enclosure-type connects with exhausting unit 3 and being connected of casing 1.The air pressure adjustment scope of exhausting unit 3 is 55KPa～101KPa, to guarantee in experimentation, can control the purpose that air pressure in the casing 1 reaches simulated high altitude air pressure environment.The air-supply inlet (being the inlet scoop) of air-conditioning unit 2 is positioned at exhausting unit 3, to avoid causing danger in the atmospheric pressure introducing casing 1 with the outside.The air inlet adjustment valve 4 that is arranged on the air intake opening place of exhausting unit 3 can be controlled the air quantity of exhausting, and its purpose is to control the admission pressure of engine 10, makes the air inlet situation of engine 10 be modeled into the not enough and hypoxic situation of highlands air inlet.To the monitoring and the record of experimentation, also be provided with Temperature Humidity Sensor 6, pressure transducer 7 in the casing 1 and lay respectively at four cameras 21 on four sidewalls for ease.Because casing 1 has adopted lighttight withstand voltage special steel to process; The people can't see inside from the outside; Thereby the intuitives that 21 pairs of these four cameras strengthen whole test platforms have very big help, can also record with the information that computer is gathered camera 21 in addition, so that ex-post analysis.
For simulating actual conditions better, engine cooling apparatus 12 adopts common water-cooling pattern, and the heat exchanging part of this water cooling plant 12 is arranged on the outside of casing 1, and the heat of avoiding chilled water to take away is directly absorbed by the air in the casing 1.In casing 1, be provided with the expansion tank 13 of opened type, the water in the expansion tank 13 is directly exposed in the air in the casing 1.This expansion tank 13 is connected with the circulation waterway of engine cooling apparatus 12, and the water in the expansion tank 13 will be discharged the air in the water route after being full of circulation waterway like this.The arrangement of engine cooling apparatus 12 and expansion tank 13 can guarantee that the engine cycles coolant-temperature gage is followed the variation of confined space pressure and overall variation is not influenced by ambient pressure.
As shown in Figure 2, dynamometer machine cooling device 8 is water-cooleds, and the circulation waterway in it is divided into A, two mutual disconnected parts of B, and separate exchangers 82 can realize the heat exchange between these two parts.B partly has the chilled water circulation line of sealing.Pump motor 81 is sent to dynamometer machine 9 with chilled water, and the water that has absorbed heat then gets in the separate exchangers 82, and exchange heat in the water route of A part, is accomplished once circulation.Water supply electromagnetic valve 83 is used for controlling the water cycle break-make of B part.The pipeline of A part can make heat be dispersed in the air.
As shown in Figure 3; Fueller 11 has also adopted and the dynamometer machine cooling device 8 similar types of cooling; The pipeline of fueller 11 comprises A part that is used to dispel the heat and the B part that is used for fuel feeding, and the two is not connected for A, B, and separate exchangers 114 can realize the heat exchange between this two.The oil feed line of B part seals.After the fuel oil of fuel tank 111 stored got in the engine 10, a part of fuel oil was burnt, and another part fuel oil then is being with heat to get into heat exchange in the separate exchangers 114, accomplished once circulation.Fuel solenoid valve 112 is used to control the break-make of fuel pipe, and fuel consumption meter 113 is used to monitor the consumption of fuel oil.
During test, engine 10 is connected with dynamometer machine 9, then air pressure and temperature in the casing 1 is transferred to predetermined value, carry out Engine Block Test again, the record experimental data gets final product.The waste gas that engine 10 produces need be discharged to outside the casing 1 through the exhaust pipe of engine 5, can avoid the temperature and the oxygen level of air in the exhaust gases casing 1 like this, thereby guarantees the reliability of experimental result.The data that under low-pressure state, test out like this are favourable to the plateau performance of research engine; For parts such as oil pump for engine, supercharger coupling provides a verification platform, whether can effective foundation be provided for the checking engine simultaneously in the highlands operate as normal.
More than the disclosed more excellent specific embodiment that is merely the utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into the protection domain of the utility model.
Claims (9)
1. engine low pressure analog testing platform; It is characterized in that; Comprise an airtight casing, this casing is provided with temperature control equipment, barometric control unit and engine cooling apparatus, is provided with dynamometer machine, dynamometer machine cooling device and oil-feeding device for engine in this casing.
2. engine low pressure analog testing platform according to claim 1 is characterized in that, also is provided with Temperature Humidity Sensor, pressure transducer and at least one camera in the said casing.
3. engine low pressure analog testing platform according to claim 1 is characterized in that said temperature control equipment is the air-conditioning unit, and it is that enclosure-type connects with being connected of said casing.
4. engine low pressure analog testing platform according to claim 3; It is characterized in that said barometric control unit is the exhausting unit, it is that enclosure-type connects with being connected of said casing; Its air pressure adjustment scope is 55KPa～101KPa, and its air intake opening place is provided with the air inlet adjustment valve; The air-supply inlet of said air-conditioning unit is positioned at above-mentioned exhausting unit.
5. engine low pressure analog testing platform according to claim 1 is characterized in that said engine cooling apparatus is a water cooling plant, and the heat exchanging part of this water cooling plant is arranged on the outside of said casing;
In said casing, be provided with the expansion tank of opened type, this expansion tank is connected with the circulation waterway of said engine cooling apparatus, and the water in the expansion tank is directly exposed in the air in the said casing.
6. engine low pressure analog testing platform according to claim 1 is characterized in that said dynamometer machine is reaction type electric power dynamometer machine or electric eddy current dynamometer.
7. engine low pressure analog testing platform according to claim 1 is characterized in that said dynamometer machine cooling device is a water-cooled chiller, has the chilled water circulation line of sealing and heat interchanger independently.
8. engine low pressure analog testing platform according to claim 1 is characterized in that, said oil-feeding device for engine comprises the oil feed line of sealing and fuel cools device independently.
9. engine low pressure analog testing platform according to claim 1 is characterized in that said casing is a steel box section, and its maximum compressive resistance is 50 tons/square metre at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201298014U CN202547943U (en) | 2012-03-30 | 2012-03-30 | Low-pressure simulation test platform for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201298014U CN202547943U (en) | 2012-03-30 | 2012-03-30 | Low-pressure simulation test platform for engine |
Publications (1)
| Publication Number | Publication Date |
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| CN202547943U true CN202547943U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201298014U Expired - Lifetime CN202547943U (en) | 2012-03-30 | 2012-03-30 | Low-pressure simulation test platform for engine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048140A (en) * | 2012-12-27 | 2013-04-17 | 东南大学 | Device for testing low-temperature low-air-pressure starting and operating characteristics of engine |
| CN103364197A (en) * | 2012-03-30 | 2013-10-23 | 广西玉柴机器股份有限公司 | An engine low-pressure simulation testing platform |
| CN104502111A (en) * | 2014-11-24 | 2015-04-08 | 华晨汽车集团控股有限公司 | Engine friction work analysis device and method |
| CN105352735A (en) * | 2015-11-18 | 2016-02-24 | 河北华北柴油机有限责任公司 | Engine plateau air inlet simulation device |
| CN106769071A (en) * | 2017-02-16 | 2017-05-31 | 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 | A kind of performance detection testing bench of Stirling engine |
| US10379002B2 (en) | 2014-01-24 | 2019-08-13 | Universitat Politécnica De Valencia | Device for atmosphere conditioning for testing combustion engines, and associated method and use |
| CN110793776A (en) * | 2019-11-15 | 2020-02-14 | 中国第一汽车股份有限公司 | Plateau high-low temperature test environment cabin for engine |
| CN111076936A (en) * | 2019-12-07 | 2020-04-28 | 武汉安立杰工程技术有限公司 | Engine air inlet test device |
-
2012
- 2012-03-30 CN CN2012201298014U patent/CN202547943U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364197A (en) * | 2012-03-30 | 2013-10-23 | 广西玉柴机器股份有限公司 | An engine low-pressure simulation testing platform |
| CN103048140A (en) * | 2012-12-27 | 2013-04-17 | 东南大学 | Device for testing low-temperature low-air-pressure starting and operating characteristics of engine |
| CN103048140B (en) * | 2012-12-27 | 2015-04-08 | 东南大学 | Device for testing low-temperature low-air-pressure starting and operating characteristics of engine |
| US10379002B2 (en) | 2014-01-24 | 2019-08-13 | Universitat Politécnica De Valencia | Device for atmosphere conditioning for testing combustion engines, and associated method and use |
| CN104502111A (en) * | 2014-11-24 | 2015-04-08 | 华晨汽车集团控股有限公司 | Engine friction work analysis device and method |
| CN105352735A (en) * | 2015-11-18 | 2016-02-24 | 河北华北柴油机有限责任公司 | Engine plateau air inlet simulation device |
| CN106769071A (en) * | 2017-02-16 | 2017-05-31 | 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 | A kind of performance detection testing bench of Stirling engine |
| CN110793776A (en) * | 2019-11-15 | 2020-02-14 | 中国第一汽车股份有限公司 | Plateau high-low temperature test environment cabin for engine |
| CN111076936A (en) * | 2019-12-07 | 2020-04-28 | 武汉安立杰工程技术有限公司 | Engine air inlet test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
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| CX01 | Expiry of patent term |