CN201488877U - Altitude simulator - Google Patents
Altitude simulator Download PDFInfo
- Publication number
- CN201488877U CN201488877U CN2009201746127U CN200920174612U CN201488877U CN 201488877 U CN201488877 U CN 201488877U CN 2009201746127 U CN2009201746127 U CN 2009201746127U CN 200920174612 U CN200920174612 U CN 200920174612U CN 201488877 U CN201488877 U CN 201488877U
- Authority
- CN
- China
- Prior art keywords
- vacuum tank
- plateau
- simulator
- vacuum
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 claims abstract description 29
- 239000002828 fuel tank Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 239000000295 fuel oil Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 238000004088 simulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Testing Of Engines (AREA)
Abstract
The utility model provides an altitude simulator applied to a hydraulic test bench, an engine test bench or an automobile. The altitude simulator comprises a vacuum tank, and a vacuum pump, a pressure sensor and a throttle which are connected with the vacuum tank, wherein the vacuum tank is provided with an interface; the interface is used for ensuring that the vacuum tank replaces an oil tank on the hydraulic test bench, the engine test bench or the car, and is connected with other parts; the vacuum pump is used for vacuumizing the vacuum tank; the pressure sensor is used for detecting the pressure in the vacuum tank; and the throttle is used for controlling the quantity of air which is absorbed in the vacuum tank.
Description
Technical field
The utility model relates to a kind of plateau simulator, is particularly useful for the exploitation and the check of common rail fuel injection system (CRS).
Background technology
Along with the rising of height above sea level, atmospheric pressure descends in the highlands, and the excess air coefficient of engine descends, and is difficult for igniting, and the thermal efficiency reduces.And common rail fuel injection system may need work under extreme conditions in practice, for example high height above sea level.What common rail fuel injection system can be subjected to low environment pressure influence on function mainly is low tension loop, startup ability, system pressure control/monitoring etc.Therefore, must verify common rail fuel injection system under high height above sea level condition: all correlation parameters (as pressure, temperature) are in the boundary of regulation.According to normal process of the test, each testing program all needs to carry out altitude test, for this reason, must deliver to the plateau to automobile for each scheme and carry out on-the-spot test run.This means a large amount of consumption and high cost.
Summary of the invention
The utility model proposes a kind of plateau simulator, it can be used on hydraulic test bench, block testing stand or the automobile, so that the high height above sea level of simplation examination is to the influence of common rail fuel injection system.Like this, can carry out assessment in research and development place simulated high altitude condition to the common rail fuel injection system operating mode.Test findings can compare with the test result of comparable applicable cases under actual high conditions.Based on this, can determine whether to be necessary to carry out field test on the plateau.
The technical solution of the utility model is: a kind of hydraulic test bench that is used in, plateau simulator on block testing stand or the automobile, wherein, this plateau simulator comprise vacuum tank and with the tank connected vacuum pump of vacuum, pressure transducer and throttling valve, wherein, this vacuum tank is provided with interface, described interface is used to make this vacuum tank to replace hydraulic test bench, fuel tank on block testing stand or the automobile is connected with miscellaneous part, this vacuum pump is used for vacuum tank is vacuumized, this pressure transducer is used for surveying the pressure of vacuum tank, and this throttling valve is used for controlling the air capacity that is inhaled into vacuum tank.
This throttling valve can be adjustable throttling valve, is used to regulate the air capacity of input, so that the stress level in the control vacuum tank.Can regulate pressure in the vacuum tank by the aperture that changes throttling valve, with the atmospheric pressure of simulation different altitude height.
This throttling valve porch can be equipped with filter cleaner.
Also can connect the energy resource supply device on the vacuum tank, so that the fuel oil of plateau simulator supplement consumed when on automobile, using.
In addition, also can be provided with fluid level gauge on the vacuum tank, be used for indicating the liquid level of vacuum tank.
The utility model has the advantages that: small investment, simple and practical, the atmospheric pressure that can simulate different altitude height.Altitude test can carry out in the project stage very early in the research and development place, and irrelevant with season.This plateau simulator can be used on hydraulic test bench, block testing stand or the automobile, can holding components and the exploitation of system.If comparing by the result of plateau simulation result who obtains and the measurement of having carried out under true high height above sea level condition does not have significant deviation, then no longer carry out the test under the true high height above sea level condition, thereby avoid unnecessary altitude test.This causes low cost of development, improves and checks and raise the efficiency.
Description of drawings
Accompanying drawing illustrates embodiment of the present utility model, wherein:
Fig. 1 shows basic functional principle;
Embodiment
As shown in Figure 1, the illustrating under 4200 meters actual sea level elevation of left side, common rail fuel injection system (CRS) synoptic diagram of no plateau simulator, wherein pressure is consistent with atmospheric pressure in the fuel tank, is 0.6bar.Illustrating under 200 meters sea level elevation of right side, the common rail fuel injection system synoptic diagram that has the plateau simulator, wherein, vacuum tank has substituted fuel tank, and (CRS) is connected with common rail fuel injection system, and atmospheric pressure is 1.0bar, under the effect of vacuum pump and adjustable throttling valve, pressure in the vacuum tank is adjusted to 0.6bar, has realized thus, highly tests for 4200 meters by plateau simulator simulation height above sea level under the height of 200 meters of height above sea level.
This plateau simulator comprises vacuum tank, vacuum pump, pressure transducer, fluid level gauge, adjustable throttling valve, energy resource supply device etc.This plateau simulator is used in hydraulic test bench, block testing stand or is loaded on the automobile.In this case, original fuel tank is connected with miscellaneous part on vacuum tank replacement testing table or the automobile, and the stress level in the vacuum tank can be adjusted to the stress level under the sea level elevation of being simulated.Vacuum pump is the stress level of sucking-off air to obtain to reduce from vacuum tank.Pressure transducer is measured the pressure in the vacuum tank.Fluid level gauge indicates the liquid level in the vacuum tank.When the plateau simulator uses on automobile, in vacuum tank, replenish fuel oil by the energy resource supply device, to keep suitable fuel oil storage capacity.Adjustable throttle valve control is inhaled into the air capacity in the vacuum tank, so that the stress level in adjusting or the maintenance vacuum tank.Can regulate admission pressure in the vacuum tank by the aperture that changes throttling valve, with the atmospheric pressure of simulation different altitude height.In addition, in the throttling valve porch air cleaner is installed.
Claims (5)
1. plateau simulator that is used on hydraulic test bench, block testing stand or the automobile, it is characterized in that, this plateau simulator comprise vacuum tank and with the tank connected vacuum pump of vacuum, pressure transducer and throttling valve, wherein, this vacuum tank is provided with interface, the fuel tank that described interface is used to this vacuum tank is replaced on hydraulic test bench, block testing stand or the automobile is connected with miscellaneous part, this vacuum pump is used for vacuum tank is vacuumized, this pressure transducer is used for surveying the pressure of vacuum tank, and this throttling valve is used for controlling the air capacity that is inhaled into vacuum tank.
2. plateau according to claim 1 simulator is characterized in that, this throttling valve is adjustable throttling valve.
3. according to the plateau simulator of claim 1 or 2, it is characterized in that this plateau simulator also comprises and the tank connected energy resource supply device of vacuum, is used for replenishing fuel oil to vacuum tank.
4. according to the plateau simulator of claim 1 or 2, it is characterized in that this vacuum tank is provided with fluid level gauge.
5. according to the plateau simulator of claim 1 or 2, it is characterized in that this throttling valve porch is equipped with filter cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201746127U CN201488877U (en) | 2009-09-04 | 2009-09-04 | Altitude simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201746127U CN201488877U (en) | 2009-09-04 | 2009-09-04 | Altitude simulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201488877U true CN201488877U (en) | 2010-05-26 |
Family
ID=42427750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201746127U Expired - Lifetime CN201488877U (en) | 2009-09-04 | 2009-09-04 | Altitude simulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201488877U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353648A (en) * | 2015-11-19 | 2016-02-24 | 东莞氢宇新能源科技有限公司 | altitude simulator |
| CN111927668A (en) * | 2020-09-07 | 2020-11-13 | 思达耐精密机电（常熟）有限公司 | High-pressure fuel oil common rail system and application thereof in plateau environment simulation |
| CN112943500A (en) * | 2021-03-11 | 2021-06-11 | 西华大学 | Device and method for simulating influence of plateau environment on spraying characteristic of aviation piston engine |
-
2009
- 2009-09-04 CN CN2009201746127U patent/CN201488877U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353648A (en) * | 2015-11-19 | 2016-02-24 | 东莞氢宇新能源科技有限公司 | altitude simulator |
| CN111927668A (en) * | 2020-09-07 | 2020-11-13 | 思达耐精密机电（常熟）有限公司 | High-pressure fuel oil common rail system and application thereof in plateau environment simulation |
| CN112943500A (en) * | 2021-03-11 | 2021-06-11 | 西华大学 | Device and method for simulating influence of plateau environment on spraying characteristic of aviation piston engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BOSCH AUTOMATIVE DISEL SYSTEM CO., LTD. Free format text: FORMER NAME: BOSCH AUTOMOTIVE DIESEL OIL SYSTEM CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 214028 Xinhua Road national hi tech Industrial Development Zone, Jiangsu, China, No. 17, No. Patentee after: Bosch Automotive Diesel Systems Co.,Ltd. Patentee after: Robert Bosch Ltd. Address before: 214028 Xinhua Road national hi tech Industrial Development Zone, Jiangsu, China, No. 17, No. Patentee before: Bosch Automotive Diesel Systems Co.,Ltd. Patentee before: Robert Bosch Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |
|
| CX01 | Expiry of patent term |