CN110173382A - A kind of fuel valve cooling system tested for spray burning in firebomb - Google Patents
A kind of fuel valve cooling system tested for spray burning in firebomb Download PDFInfo
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- CN110173382A CN110173382A CN201910342129.3A CN201910342129A CN110173382A CN 110173382 A CN110173382 A CN 110173382A CN 201910342129 A CN201910342129 A CN 201910342129A CN 110173382 A CN110173382 A CN 110173382A
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- Prior art keywords
- fuel injector
- coolant
- cooling
- firebomb
- fuel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
- F02M53/04—Injectors with heating, cooling, or thermally-insulating means
- F02M53/043—Injectors with heating, cooling, or thermally-insulating means with cooling means other than air cooling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of fuel valve cooling systems tested for spray burning in firebomb, it is related to dynamic power machine spray burning field, including fuel injector cooling water set, tank for coolant, coolant inlet pipeline, cooling liquid outlet pipeline, coolant pump and temperature sensor；Fuel injector cooling water is set on the outside of fuel injector, and fuel injector is fixed on the middle of fuel injector cooling water set by mechanical clamp；Cooling sap cavity is constituted by nozzle holder cap, support ring, fuel injector installation cover in this fuel injector cooling water set；The inlet and outlet of the fuel injector cooling water set are respectively arranged with coolant inlet pipeline and cooling liquid outlet pipeline, are connected with coolant liquid in pipeline；The coolant inlet pipeline is connected with coolant pump；The coolant inlet pipeline and cooling liquid outlet pipeline are respectively equipped with a temperature sensor.The cooling system can adjust different coolant temperatures according to the difference of target experiment condition, to realize the accurate control to fuel oil temperature in fuel injector.
Description
Technical field
The present invention relates to the research fields such as basis burning and dynamic power machine spray burning, more particularly to in firebomb
The fuel valve cooling system of spray burning experiment.
Background technique
With global energy crisis and the influence of increasing environmental pollution, reinforce the research of engine spray burning process,
It is particularly important to improvement engine combustion process, reduction pollutant emission；Due to combustion-chamber shape complicated in engine and move
The work condition environment of state, so that very difficult in spray burning research wherein.Therefore many researchers pass through firebomb first
Carry out the research in terms of the spray burning characteristic under static work condition environment.But since fuel oil temperature is to spraying in current research
Combustion process has very big influence, such as time lag of inflammation, flame float length, soot content, and do Numerical-Mode later
When quasi-, calculating is analyzed, fuel oil temperature is an important factor in order of input, and input is uncontrollable, and output result will have height
Spend error.Therefore realize that fuel oil temperature is controllable, Experiments of Optics result just can be relatively reliable in firebomb, so fuel injector fuel oil temperature
Effective control of degree is most important to research engine spray burning process.
Summary of the invention
It is uncontrollable based on oil injector body temperature and fuel oil temperature in firebomb progress spray burning experimentation to overcome
The problem of, the present invention provide it is a set of can adjust different coolant temperatures according to the difference of target experiment condition, thus realize pair
The cooling system that fuel oil temperature accurately controls in fuel injector.
The present invention is that above-mentioned technical purpose is realized by following technological means:
A kind of fuel valve cooling system tested for spray burning in firebomb, including fuel injector cooling water set, cooling
Liquid case, coolant inlet pipeline, cooling liquid outlet pipeline, coolant pump and temperature sensor；The fuel injector cooling water is arranged
It sets on the outside of fuel injector, fuel injector is fixed on the centre of fuel injector cooling water set by fixture；By nozzle holder cap, support ring, spray
The cooling sap cavity setting that oily device installation cover is constituted is in fuel injector cooling water set；The import of fuel injector cooling water set with
Outlet is respectively arranged with coolant inlet pipeline and cooling liquid outlet pipeline.
Further, the fuel injector cooling water is set in firebomb cylinder, and entire spray burning experiment occurs firing
It burns in environment closed in bullet.
Further, the fuel injector cooling water, which is put on, offers cooling liquid flowing channel, and cooling liquid flowing channel and cooling sap cavity
Lower part communicates.
Further, the fuel injector cooling water set and nozzle holder cap contact position, nozzle holder cap and nozzle contact position, oil spout
Respectively there are a seal groove in device installation cover and fuel injector contact position.
Further, the coolant inlet pipeline is connect with coolant pump.
Further, the coolant inlet pipeline and cooling liquid outlet pipeline are provided with temperature sensor, with measurement
And show the temperature of inlet and outlet coolant liquid.
Further, the nozzle holder cap is hollow back taper rotary structure；And nozzle holder cap offers several circles and leads to
Hole.
Further, coolant liquid is connected in the coolant inlet pipeline and cooling liquid outlet pipeline；Tank for coolant supply
Coolant liquid, and coolant temperature can be adjusted according to the difference of target experiment condition.
Further, according to the difference of target experiment condition, different coolant temperatures can be adjusted in tank for coolant, when
When temperature difference shown in two temperature sensors is less than 2 DEG C, then represents fuel oil temperature and have reached stable state.
Further, the nozzle holder cap material is aluminum material.
The utility model has the advantages that
The fuel valve cooling system tested for spray burning in firebomb is provided, control is simple, can be according to target reality
The difference for testing operating condition adjusts different coolant temperatures, thus realize the accurate control to fuel oil temperature in fuel injector, if two
Temperature difference shown in temperature sensor then represents fuel oil temperature and has reached stable state less than 2 DEG C.The static error of fuel oil temperature
Control is in 2 DEG C of zone of reasonableness, control precision with higher.
Detailed description of the invention
Fig. 1 is the overall structure section view in the present invention for the fuel valve cooling system of spray burning experiment in firebomb
Figure；
Fig. 2 is the partial structure sectional view of fuel injector cooling water set in Fig. 1 of the present invention.
Appended drawing reference is as follows:
1, fuel injector cooling water set；2, cooling liquid flowing channel；3, cooling sap cavity；4, seal groove；5, nozzle holder cap；6, it supports
Ring；7, fuel injector installation cover；8, tank for coolant；9, coolant inlet pipeline；10, cooling liquid outlet pipeline；11, coolant pump；
12, temperature sensor.
Specific embodiment
The present invention is further elaborated with reference to the accompanying drawing.
Exemplary embodiment of the present invention is described in conjunction with attached drawing 1, Fig. 2.It describes in an exemplary embodiment of the present invention
The size of each component part, material and shape, positioned opposite etc., which are not intended to, is limited to them for technical scope of the invention, removes
It is non-otherwise indicated.It should be understood that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, the application range as defined in the appended claims is fallen within to the modification of various equivalent forms of the invention.
It is of the present invention for a kind of fuel injector cooling system tested for spray burning in firebomb referring to attached drawing 1, Fig. 2
System, including fuel injector cooling water cover 1, tank for coolant 8, coolant inlet pipeline 9, cooling liquid outlet pipeline 10, coolant pump 11
With temperature sensor 12；The fuel injector cooling water set 1 is arranged on the outside of fuel injector, and fuel injector is fixed on spray by mechanical clamp
The middle of oily device cooling jacket 1；By nozzle holder cap 5, support ring 6, fuel injector installation cover 7 in the fuel injector cooling water set 1
Constitute cooling sap cavity 3；The inlet and outlet of the fuel injector cooling water set 1 are respectively arranged with coolant inlet pipeline 9 and coolant liquid goes out
Mouthful pipeline 10 is connected with coolant liquid in pipeline.
In conjunction with attached drawing 2, fuel injector cooling water set 1 is intracavitary to offer stepped hole, is separately installed with from top to bottom in stepped hole
Fuel injector installation cover 7, support ring 6 and nozzle holder cap 5, and fuel injector installation cover 7, support ring 6 and nozzle holder cap 5 are close between the two
Sealing-in is touched or is fixedly connected；Wherein, nozzle holder cap 5 is hollow back taper rotary structure, and nozzle holder cap 5 and fuel injector are cooling
There is certain gap between water jacket 1, and offer several round tube holes on nozzle holder cap 5, the coolant liquid in cooling liquid flowing channel 2 is by cold
But liquid inlet duct 9 is entered in cooling sap cavity 3 by the round tube hole opened up on nozzle holder cap 5, meanwhile, in cooling sap cavity 3
Coolant liquid is covered between 1 by the round tube hole outflow opened up on nozzle holder cap 5 hence into nozzle holder cap 5 and fuel injector cooling water
Gap in, passed back into tank for coolant 8 eventually by coolant inlet pipeline 9.This hollow back taper revolution of nozzle holder cap 5
Body structure increases the contact area of coolant liquid Yu nozzle holder cap 5, while the round tube hole on nozzle holder cap 5 also increases coolant liquid and connects
Contacting surface product improves the cooling effect to fuel injector so that quickly taking away the heat at fuel injector tip by nozzle holder cap 5
Rate.
The fuel injector cooling water set 1 is the structure of cooling liquid flowing channel 2 to be offered in entity, and there are hollow for solid centre
Cooling sap cavity 3, its underpart offers round tube hole.On the one hand the cooling liquid flowing channel 2 is conducive to be conveyed by coolant inlet pipeline 9
Coolant liquid fuel injector cooling water set 1 in circulating, on the other hand by nozzle holder cap 5, support ring 6 and fuel injector assemble
The cooling sap cavity 3 that lid 7 is constituted can make coolant liquid full of sufficiently large space, and come into full contact with fuel injector, to realize to spray
The oily good cooling effect of device；And it is contacted with 5 contact position of nozzle holder cap, nozzle holder cap 5 with nozzle in fuel injector cooling water set 1
Respectively there are a seal groove 4 in place, fuel injector installation cover 7 and fuel injector contact position, are sealed, are prevented cold with installing rubber seal
But liquid leaks out.In addition round tube hole is offered in lower part, to facilitate fuel injector to extend there through, does not influence normal oil spout, and conveniently
The subsequent observation to combustion case.Wherein, 5 material of nozzle holder cap is aluminum material.
Attached drawing 1 is overall structure section view of the present embodiment for the fuel valve cooling system of spray burning experiment in firebomb
Figure.The fuel injector cooling water set 1 is arranged on the outside of fuel injector, and fuel injector is fixed on the fuel injector of aluminium material by mechanical clamp
The middle of cooling jacket 1；The coolant inlet pipeline 9 and cooling liquid outlet pipeline 10 are provided with temperature sensor 12,
With coolant temperature in measurement and display pipes；The tank for coolant 8 supplies coolant liquid, according to the difference of target experiment condition,
Adjustable different coolant temperature, so that fuel oil temperature is all consistent under different experiments operating condition；The coolant liquid enters
Mouth pipeline 9 is connected with coolant pump 11；The coolant pump 11 provides a constant current from tank for coolant 8 to coolant inlet pipeline 9
The coolant liquid of amount；Coolant liquid in the cooling liquid outlet pipeline 10 flows back to tank for coolant 8.
Attached drawing 2 is that the present embodiment is used in firebomb fuel injector cooling water in the fuel valve cooling system of spray burning experiment
The partial structure sectional view of set.The fuel injector cooling water set 1 is arranged on the outside of fuel injector, and is fixed on firebomb experimental provision
On, fuel injector is fixed on the middle of fuel injector cooling water set 1 by mechanical clamp；1 top two of fuel injector cooling water set
Side is connected with coolant inlet pipeline 9 and cooling liquid outlet pipeline 10 respectively, and cooling liquid flowing channel 2 is offered in cooling jacket,
Coolant liquid enters cooling liquid flowing channel 2 by coolant inlet pipeline 9, then six holes by opening up on nozzle holder cap 5 enter
In the cooling sap cavity 3 be made of nozzle holder cap 5, support ring 6, fuel injector installation cover 7, come into full contact with fuel injector, to realize
To the good cooling effect of fuel injector；The nozzle holder cap 5 is aluminium material, can be transmitted preferably between nozzle and coolant liquid
Heat enhances cooling effect；Fuel injector cooling water set 1 and 5 contact position of nozzle holder cap, nozzle holder cap 5 and nozzle contact position,
Respectively there are a seal groove 4 in fuel injector installation cover 7 and fuel injector contact position, are sealed with installing rubber seal, prevent from cooling down
Liquid leaks out；The fuel injector cooling water covers 1 lower part and offers a round tube hole, to facilitate fuel injector to extend there through, does not influence normal
Oil spout, and facilitate the subsequent observation to combustion case.
Working principle: carrying out spray burning experiment with firebomb, has different target operating conditions, and different operating conditions are to fuel oil
The influence of temperature is different, and different fuel oil temperatures can also generate different influences to spray burning experiment, so must assure that
Fuel oil temperature is all consistent under all experiment conditions.It is right under target experiment condition first before doing spray burning experiment
Fuel injector is demarcated.Calibration experiment is done with the blank fuel injector of no spray orifice, thermocouple is installed in fuel injector and is put into combustion
Oil adjusts different coolant temperatures by tank for coolant 8 under target experiment condition, and the temperature measured by the thermocouple reaches
The measurement of temperature sensor 12 and display when Targeted fuel temperature, and on coolant inlet pipeline 9 and cooling liquid outlet pipeline 10
Inlet and outlet coolant temperature difference less than 2 DEG C when, it is believed that fuel oil temperature has reached stable state, fuel oil temperature at this time
The average value of as shown temperature difference, records coolant temperature at this time.Then change different experiment conditions, carry out again
Above-mentioned calibration experiment, when showing that fuel oil temperature is consistent, the corresponding relationship of coolant temperature and experiment condition.Then by blank oil spout
Device is changed to the true fuel injector for being connected to high-pressure common rail, can be adjusted to different target experiment condition pair by tank for coolant 8
The coolant temperature answered carries out spray burning experiment.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Claims (10)
1. a kind of fuel valve cooling system tested for spray burning in firebomb, which is characterized in that cooling including fuel injector
Water jacket (1), tank for coolant (8), coolant inlet pipeline (9), cooling liquid outlet pipeline (10), coolant pump (11) and temperature pass
Sensor (12)；The fuel injector cooling water set (1) is arranged on the outside of fuel injector, and fuel injector is fixed on fuel injector cooling by fixture
The centre of water jacket (1)；Cooling sap cavity (3) setting being made of nozzle holder cap (5), support ring (6), fuel injector installation cover (7) exists
In the fuel injector cooling water set (1)；The import and outlet of the fuel injector cooling water set (1) are respectively arranged with coolant inlet
Pipeline (9) and cooling liquid outlet pipeline (10).
2. the fuel valve cooling system according to claim 1 for spray burning experiment in firebomb, which is characterized in that
The fuel injector cooling water set (1) is arranged in firebomb cylinder, and ring closed in firebomb occurs for entire spray burning experiment
In border.
3. the fuel valve cooling system according to claim 1 for spray burning experiment in firebomb, which is characterized in that
It is offered cooling liquid flowing channel (2) on the fuel injector cooling water set (1), and cooling liquid flowing channel (2) and cooling sap cavity (3) lower part phase
It is logical.
4. the fuel valve cooling system according to claim 1 for spray burning experiment in firebomb, which is characterized in that
The fuel injector cooling water set (1) and nozzle holder cap (5) contact position, nozzle holder cap (5) and nozzle contact position, fuel injector installation cover
(7) respectively there is a seal groove (4) with fuel injector contact position.
5. the fuel valve cooling system according to claim 1 for spray burning experiment in firebomb, which is characterized in that
The coolant inlet pipeline (9) connect with coolant pump (11).
6. the fuel valve cooling system according to claim 1 for spray burning experiment in firebomb, which is characterized in that
The coolant inlet pipeline (9) and cooling liquid outlet pipeline (10) are provided with temperature sensor (12), to measure and show
Import and export the temperature of coolant liquid.
7. the fuel valve cooling system according to claim 1 for spray burning experiment in firebomb, which is characterized in that
The nozzle holder cap (5) is hollow back taper rotary structure；And nozzle holder cap (5) offers several round tube holes.
8. the fuel valve cooling system according to claim 1 for spray burning experiment in firebomb, which is characterized in that
Coolant liquid is connected in the coolant inlet pipeline (9) and cooling liquid outlet pipeline (10) pipeline；Tank for coolant (8) supply cooling
Liquid, and coolant temperature can be adjusted according to the difference of target experiment condition.
9. the fuel valve cooling system according to any one of claims 1 to 8 for spray burning experiment in firebomb,
It is characterized in that, according to the difference of target experiment condition, different coolant temperatures can be adjusted in tank for coolant (8), when two
When temperature difference shown in temperature sensor (12) is less than 2 DEG C, then represents fuel oil temperature and have reached stable state.
10. the fuel valve cooling system according to any one of claims 1 to 8 for spray burning experiment in firebomb,
It is characterized in that, nozzle holder cap (5) material is aluminum material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342129.3A CN110173382B (en) | 2019-04-26 | 2019-04-26 | Oil sprayer cooling system for spray combustion experiment in combustion bomb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342129.3A CN110173382B (en) | 2019-04-26 | 2019-04-26 | Oil sprayer cooling system for spray combustion experiment in combustion bomb |
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| Publication Number | Publication Date |
|---|---|
| CN110173382A true CN110173382A (en) | 2019-08-27 |
| CN110173382B CN110173382B (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910342129.3A Active CN110173382B (en) | 2019-04-26 | 2019-04-26 | Oil sprayer cooling system for spray combustion experiment in combustion bomb |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702874A (en) * | 2021-07-28 | 2021-11-26 | 广东电网有限责任公司广州供电局 | Water bath type liquid level stabilizing pool fire burner used as external fire source of transformer |
| CN114810442A (en) * | 2022-04-11 | 2022-07-29 | 哈尔滨工程大学 | Fuel injector cooling device and method based on constant volume bomb high-temperature experiment |
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| JP2002070686A (en) * | 2000-08-30 | 2002-03-08 | Yanmar Diesel Engine Co Ltd | Fuel injection valve for internal combustion engine and disassembling tool therefor |
| CN103917755A (en) * | 2011-11-09 | 2014-07-09 | 罗伯特·博世有限公司 | Dosing module |
| CN103953454A (en) * | 2014-04-03 | 2014-07-30 | 中国北方发动机研究所(天津) | Water cavity structure of air cylinder cover of internal combustion engine |
| CN104819850A (en) * | 2015-03-27 | 2015-08-05 | 天津大学 | Constant-volume firebomb system for simulating combustion of engine |
| CN106932202A (en) * | 2017-05-19 | 2017-07-07 | 堀场仪器（上海）有限公司 | A kind of Temperature-controlled appliance for being applied to engine test |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002070686A (en) * | 2000-08-30 | 2002-03-08 | Yanmar Diesel Engine Co Ltd | Fuel injection valve for internal combustion engine and disassembling tool therefor |
| CN103917755A (en) * | 2011-11-09 | 2014-07-09 | 罗伯特·博世有限公司 | Dosing module |
| CN103953454A (en) * | 2014-04-03 | 2014-07-30 | 中国北方发动机研究所(天津) | Water cavity structure of air cylinder cover of internal combustion engine |
| CN104819850A (en) * | 2015-03-27 | 2015-08-05 | 天津大学 | Constant-volume firebomb system for simulating combustion of engine |
| CN106932202A (en) * | 2017-05-19 | 2017-07-07 | 堀场仪器（上海）有限公司 | A kind of Temperature-controlled appliance for being applied to engine test |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702874A (en) * | 2021-07-28 | 2021-11-26 | 广东电网有限责任公司广州供电局 | Water bath type liquid level stabilizing pool fire burner used as external fire source of transformer |
| CN114810442A (en) * | 2022-04-11 | 2022-07-29 | 哈尔滨工程大学 | Fuel injector cooling device and method based on constant volume bomb high-temperature experiment |
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| CN110173382B (en) | 2021-09-10 |
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