CN2895778Y - Double-liquid nozzle - Google Patents
Double-liquid nozzle Download PDFInfo
- Publication number
- CN2895778Y CN2895778Y CNU2005200293992U CN200520029399U CN2895778Y CN 2895778 Y CN2895778 Y CN 2895778Y CN U2005200293992 U CNU2005200293992 U CN U2005200293992U CN 200520029399 U CN200520029399 U CN 200520029399U CN 2895778 Y CN2895778 Y CN 2895778Y
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- valve
- chamber
- valve body
- needle
- double
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Abstract
The utility model relates to a double-liquid nozzle, in particular to a nozzle used on DI compression ignition engine for jetting a double-liquid. Aim of the device is to solve the problem of difficult arrangement of a double-nozzle for the double-fuel and difficult matching between the jetting beam direction of dual-fuel and the combustion chamber. The specific technical solution is that the device is composed by a needle valve, a valve sleeve and a valve body with a spray orifice. The device is characterized in that the valve sleeve (3) is provided between the needle valve (5) and the valve body (2). The three parts are cooperating couples with each other. The outer conical surface of the valve sleeve (3) is arranged on the inner conical surface of the valve body (2) to form a first valve, the conical surface of the needle valve (5) and the inner conical surface of the valve sleeve (3) form a second valve. Different parts of between the needle valve (5), the valve sleeve (3) and the valve body (2) form respectively a pressure-chamber (1), a first looped chamber (10), second looped chamber (9). A first channel (4) connecting with the first looped chamber (10) and a second channel (8) connecting with the second looped chamber (9) are arranged on the valve body (2).
Description
Technical field
The utility model relates to a kind of biliquid pressure nozzle, especially relates to being used in spraying two kinds of liquid fuel nozzles on motor.
Background technique
At present, known diesel engine be with diesel oil with the form of high pressure in nozzle sprays into the firing chamber, improve temperature by the air in the Piston Compression cylinder, and utilize the characteristic of the easy involuntary ignition of diesel oil, make diesel oil in cylinder, produce pressure after the spontaneous combustion and promote the piston acting.But, along with oil shortage gradually, diesel engine must use other liquid fuel (as, alcohols, LPG, CNG etc.) deficiency of replenishing diesel oil.Diesel engine with double ejecting system can utilize a small amount of diesel oil of nozzle ejection as igniter fuel, other liquid fuel of another nozzle ejection is as main fuel, diesel engine is mixed the ratio of burning other liquid fuel and is reached 50%-90%, the method that adopts two nozzles not only can vast scale the application alternative energy resources, and mix and burn the wide in variety of liquid fuel, the double ejecting system diesel engine is a very practicable good method to the nervous situation of alleviating following diesel oil
[1-5]But, utilize two nozzles to spray diesel oil and other liquid fuel respectively, cylinder of diesel engine covers will arrange two nozzles and inlet and exhaust valve, makes air cylinder head structure more complicated, and two nozzles can not be arranged in the centre in combustion recess space simultaneously.When nozzle is in centre position, combustion recess space, a plurality of spray orifices not only can evenly distribute in 360 ° of angular ranges, and each spray orifice is equal to the Edge Distance of pit, and a plurality of fuel beam energies that sprayed are evenly distributed in the whole firing chamber, and quality of mixing gas mixture is good; When nozzle is in the marginal position of the bags, the distribution of spray orifice direction is less than 180 °, could guarantee that each spray orifice all injects fuel in the combustion recess, and the spray orifice number of nozzle is restricted, because the jet nozzle angle distribution is little and nozzle hole number is few, the fuel that nozzle sprayed forms the poor quality of mixed gas in the firing chamber, combustion efficiency is low, power character and less economical.Adopt two nozzles to exist a combustion efficiency height, the shortcoming that another combustion efficiency is low to the indoor fuel that sprays into of diesel combustion.
Summary of the invention
It is unreasonable that above-mentioned purpose of the present utility model is to overcome the layout that double fuel in the prior art adopts twin nipple to exist, and the problems such as coupling difficulty of two kinds of fuel beams and firing chamber provide a kind of novel double liquid body nozzle rational in infrastructure.
Above-mentioned purpose of the present utility model is achieved in that accompanying drawings is as follows:
Double-liquid nozzle is made up of needle-valve, valve pocket and the valve body that is provided with spray orifice, between needle-valve 5 and the valve body 2 valve pocket 3 is housed, mated pair each other between three parts, the male cone (strobilus masculinus) of sleeving valve 3 is landed on the inner conical surface of valve body 2, constitute first valve, the inner conical surface of the conical surface of needle-valve 5 and sleeving valve 3 constitutes second valve, formed 10, the second ring-like chamber 9,1, the first ring-like chamber, a pressure chamber between needle-valve 5, valve pocket 3 and valve body 2 diverse locations respectively, valve body 2 is provided with first passage 4 that communicates with the first ring-like chamber 10 and the second channel 8 that communicates with the second ring-like chamber 9.
Said pressure chamber 1 be by when first valve and second valve all are in closed condition and the inner chamber of valve body 2 ends constitute.
The said first ring-like chamber 10 is made of valve pocket 3 and valve body 2.
The said second ring-like chamber 9 is made of needle-valve 5 and valve pocket 3 and valve body 2 inwalls.
The utility model is on the nozzle idol part basis of being made up of needle-valve and valve body, nozzle that part constituted that is sleeving valve of middle increase.Mated pair each other between three parts, needle-valve is installed in and constitutes a valve in the sleeving valve, sleeving valve is installed in and constitutes a valve in the valve body again, constitute a pressure chamber between three part diverse locations, two ring-like chambeies, two valves are controlled two ring-like chambeies respectively and are communicated with the pressure chamber, use identical spray orifice to spray jointly, reach the function that a nozzle can spray two kinds of liquid.
The beneficial effects of the utility model are: two kinds of fuel of a nozzle ejection, the one, overcome the problem of two nozzles of bad layout on the cylinder head, the 2nd, overcome two nozzles and can not be in the Centromedian shortcoming in combustion recess space simultaneously, can well solve the matching problem of two kinds of fuel beams and firing chamber, make two kinds of fuel beams in the firing chamber, all have identical optimal spatial position, the all equally good air that utilizes in intake swirl and the combustion recess guarantees two kinds of all extraordinary abundant burnings of fuel.
Description of drawings
Fig. 1 double-liquid nozzle structural representation.
First kind of fuel of Fig. 2 sprays schematic representation.
Second kind of fuel of Fig. 3 sprays schematic representation.
Embodiment
Below in conjunction with the accompanying drawing illustrated embodiment the utility model is further specified.
The utility model structure as shown in Figure 1, its core part is: needle-valve 5, sleeving valve 3 and valve body 2, needle-valve and sleeving valve all are installed in the valve body, mated pair each other between needle-valve, sleeving valve and the valve body.Under the effect of spring 6, through spring seat 7 spring force is passed to needle-valve, the conical surface of needle-valve is landed on the inner conical surface of sleeving valve, and then power is passed to sleeving valve, the male cone (strobilus masculinus) of sleeving valve is landed on the inner conical surface of valve body.The conical surface of sleeving valve and valve body constitutes first valve, and the conical surface of needle-valve and sleeving valve constitutes second valve.Formed 10, the second ring-like chamber 9,1, the first ring-like chamber, a pressure chamber between three part diverse locations respectively.Valve body is provided with first passage 4 and second channel 8, and first passage 4 communicates with the first ring-like chamber 10, and second channel 8 communicates with the second ring-like chamber 9.
Shown in figure-2, enter first passage when first kind of fuel sprays, be full of the first ring-like chamber then from first kind of fuel of high-pressure service pump.First ring-like chamber inner high voltage fuel produces thrust upwards to sleeving valve, after the frictional force that overcomes between spring force and sleeving valve, needle-valve and valve body, moves on the sleeving valve, and the fuel in the ring-like chamber enters in the pressure chamber and penetrates from spray orifice 11.When high-pressure service pump stopped to supply with first kind of fuel, the fuel pressure in the first passage descended rapidly, and spring force is passed to the rapid throttle down of sleeving valve through spring seat and needle-valve, stopped first kind of fuel and sprayed.
Shown in figure-3, enter second channel when second kind of fuel sprays, be full of the second ring-like chamber then from second kind of fuel of high-pressure service pump.Second ring-like chamber inner high voltage fuel produces thrust upwards to needle-valve, after the frictional force that overcomes between spring force and needle-valve and valve body, moves on the needle-valve, and the fuel in the ring-like chamber also enters in the pressure chamber and penetrates from spray orifice 11.When high-pressure service pump stopped to supply with second kind of fuel, the fuel pressure in the second channel descended rapidly, and needle-valve is rapid throttle down under the effect of spring force, stopped second kind of fuel and sprayed.
Claims (4)
1, a kind of double-liquid nozzle is by needle-valve, valve pocket is formed with the valve body that is provided with spray orifice, it is characterized in that between needle-valve (5) and the valve body (2) valve pocket (3) being housed, mated pair each other between three parts, the male cone (strobilus masculinus) of sleeving valve (3) is landed on the inner conical surface of valve body (2), constitute first valve, the inner conical surface of the conical surface of needle-valve (5) and sleeving valve (3) constitutes second valve, needle-valve (5), formed a pressure chamber (1) respectively between valve pocket (3) and the valve body (2), the first ring-like chamber (10), the second ring-like chamber (9), valve body (2) are provided with first passage (4) that communicates with the first ring-like chamber (10) and the second channel (8) that communicates with the second ring-like chamber 9.
2, double-liquid nozzle according to claim 1, it is characterized in that said pressure chamber (1) be by when first valve and second valve all are in closed condition and the inner chamber of valve body (2) end constitute.
3, require 1 described double-liquid nozzle according to the right profit, it is characterized in that the said first ring-like chamber (10) is made of valve pocket (3) and valve body (2).
4, double-liquid nozzle according to claim 1 is characterized in that the said second ring-like chamber (9) is made of needle-valve (5) and valve pocket (3) and valve body (2) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200293992U CN2895778Y (en) | 2005-11-04 | 2005-11-04 | Double-liquid nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200293992U CN2895778Y (en) | 2005-11-04 | 2005-11-04 | Double-liquid nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895778Y true CN2895778Y (en) | 2007-05-02 |
Family
ID=38065355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200293992U Expired - Fee Related CN2895778Y (en) | 2005-11-04 | 2005-11-04 | Double-liquid nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895778Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963244A (en) * | 2010-10-12 | 2011-02-02 | 中冶南方工程技术有限公司 | Multi-spray-gun water-feeding type tapered annular seam regulating valve |
| CN101368740B (en) * | 2007-08-16 | 2012-07-25 | 王抗美 | Enclosed fluctuation centrifugal injection nozzle |
| CN102698895A (en) * | 2012-05-10 | 2012-10-03 | 太仓戴尔塔精密模具有限公司 | Spray head |
| CN105422278A (en) * | 2015-11-13 | 2016-03-23 | 吉林大学 | Dual-fuel unitized engine, fuel oil control method and power device |
-
2005
- 2005-11-04 CN CNU2005200293992U patent/CN2895778Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368740B (en) * | 2007-08-16 | 2012-07-25 | 王抗美 | Enclosed fluctuation centrifugal injection nozzle |
| CN101963244A (en) * | 2010-10-12 | 2011-02-02 | 中冶南方工程技术有限公司 | Multi-spray-gun water-feeding type tapered annular seam regulating valve |
| CN101963244B (en) * | 2010-10-12 | 2013-02-06 | 中冶南方工程技术有限公司 | Multi-spray-gun water-feeding type tapered annular seam regulating valve |
| CN102698895A (en) * | 2012-05-10 | 2012-10-03 | 太仓戴尔塔精密模具有限公司 | Spray head |
| CN105422278A (en) * | 2015-11-13 | 2016-03-23 | 吉林大学 | Dual-fuel unitized engine, fuel oil control method and power device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070502 Termination date: 20101104 |