CN201292903Y - Fuel injector - Google Patents
Fuel injector Download PDFInfo
- Publication number
- CN201292903Y CN201292903Y CNU2008203028352U CN200820302835U CN201292903Y CN 201292903 Y CN201292903 Y CN 201292903Y CN U2008203028352 U CNU2008203028352 U CN U2008203028352U CN 200820302835 U CN200820302835 U CN 200820302835U CN 201292903 Y CN201292903 Y CN 201292903Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- valve seat
- liquid nitrogen
- spool
- 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 - Fee Related
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Abstract
The utility model relates to a fuel injector which belongs to a device for injecting fully mixed fuel and air into a combustion chamber of a liquid nitrogen evaporator to combust. The utility model can solve the problems of uneven mixing, poor combustion effect, energy waste and environmental pollution of the prior fuel injector. The fuel injector mainly consists of a valve body, a valve core, fastening nuts, a needle valve and a needle valve seat, wherein the valve core with three gas vents is arranged in the valve body, the valve body is provided with a fuel passage and an air passage, the fuel passage is communicated with the inner cavity of the valve core, the air passage is communicated with a cavity between the valve core and the valve body, the needle valve is arranged between the inner cavity of the valve body and the needle valve seat and embedded in the needle valve seat, the valve body and the needle valve seat are fastened by the fastening nuts. The radial gradient of the gas vents and the valve core is more than or equal to 20 degrees and less than or equal to 45 degrees. A fixed board is arranged and connected with the liquid nitrogen evaporator. The fuel injector can be widely used in liquid nitrogen evaporation equipment.
Description
Technical field
The utility model relates to a kind of being used for fuel oil and the device that sprays into liquid nitrogen vaporization device firing chamber internal combustion after even air is mixed.
Background technique
Existing oil sprayer is that fuel oil and air are sprayed into a small-sized seal container simultaneously, rely on ambient pressure with air with spray into liquid nitrogen vaporization device firing chamber after fuel oil mixes, this structure makes fuel oil and air mixing inhomogeneous, can not fully burn after entering the firing chamber, firing effect is poor, and causes a series of problems such as energy waste and environmental pollution.Especially for the liquid nitrogen vaporization device of oil field operation, how to allow fuel oil fully mix with air, atomize well, become the key technology that influences liquid nitrogen vaporization device performance.
The model utility content
The purpose of this utility model provides a kind of oil sprayer, solve existing oil sprayer mix inhomogeneous, firing effect is poor, waste energy and problem of environment pollution caused, realization with air with after fuel oil fully mixes, spray pattern with the best sprays into liquid nitrogen vaporization device firing chamber, improve firing effect, improve the evaporativity and the economic performance of liquid nitrogen vaporization device.
The utility model is achieved through the following technical solutions above-mentioned purpose: a kind of oil sprayer, mainly form by valve body, spool, tightening nut, needle-valve, pintle valve seat, a spool that gas port is arranged is set in valve body, valve body has fuel gallery and two passages of air passageways, the fuel gallery leads to valve core cavity, and air passageways leads to the cavity between spool and the valve body; Needle-valve and is embedded in the pintle valve seat between body cavity and pintle valve seat, and tightening nut is fixed together valve body and pintle valve seat.Described gas port has three.The radial tilt of described gas port and spool 〉=20 °, and≤45 °.Fixed plate is set to be connected with the liquid nitrogen vaporization device.
The beneficial effect that the utility model is had compared with the prior art is: by adopting the said structure design, air forms swirling eddy at valve core cavity, fuel oil mixes rapidly with air under the effect of swirling eddy, disperse ejection by the gap of needle-valve and pintle valve seat with umbrella at last, mixing, atomizing effect have been improved, and then can improve firing effect after gas mixture sprays into liquid nitrogen vaporization device firing chamber, improve the evaporativity and the economic performance of liquid nitrogen vaporization device.
Description of drawings
Fig. 1 is the integrally-built longitudinal sectional view of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
A kind of oil sprayer, mainly form by valve body 1, spool 3, tightening nut 4, needle-valve 5, pintle valve seat 6, a spool 3 that gas port 7 is arranged is set in valve body 1, valve body 1 has fuel gallery 8 and 9 two passages of air passageways, fuel gallery 8 leads to spool 3 inner chambers, the cavity that air passageways 9 leads between spool 3 and the valve body 1; Needle-valve 5 and is embedded in the pintle valve seat 6 between valve body 1 inner chamber and pintle valve seat 6, and tightening nut 4 is fixed together valve body 1 and pintle valve seat 6.Described gas port 7 has three.Radial tilt 〉=20 of described gas port 7 and spool 3 °, and≤45 °.Fixed plate 2 is set to be connected with the liquid nitrogen vaporization device.
By fixed plate 2 oil sprayer is fixed on the liquid nitrogen vaporization device, air enters cavity between valve body 1 and the spool 3 through air passageways 9, enters spool 3 inner chambers by the gas port on the spool 37, forms circinate flowing gas---swirl gas.At this moment, swirl gas mixes with the fuel oil that is entered spool 3 inner chambers by fuel gallery 8.The gas of rotation is broken up the fuel oil that enters spool 3 inner chambers, makes fuel oil and air mix rapidly, has improved the fogging degree of fuel oil and air.Mixed fuel oil and air are divergent state and spray into liquid nitrogen vaporization device firing chamber under the conical surface effect of needle-valve 5 and pintle valve seat 6, improved mixing, atomizing effect.
Claims (4)
1. oil sprayer, mainly form by valve body (1), spool (3), tightening nut (4), needle-valve (5), pintle valve seat (6), it is characterized in that: a spool (3) that gas port (7) are arranged is set in valve body (1), valve body (1) has fuel gallery (8) and (9) two passages of air passageways, fuel gallery (8) leads to spool (3) inner chamber, and air passageways (9) leads to the cavity between spool (3) and the valve body (1); Needle-valve (5) is positioned between valve body (1) inner chamber and the pintle valve seat (6), and is embedded in the pintle valve seat (6), and tightening nut (4) is fixed together valve body (1) and pintle valve seat (6).
2. oil sprayer according to claim 1 is characterized in that: described gas port (7) has three.
3. according to claim 1 or 2 described oil sprayers, it is characterized in that: radial tilt 〉=20 of described gas port (7) and spool (3) °, and≤45 °.
4. according to claim 1 or 2 described oil sprayers, it is characterized in that: fixed plate (2) is set is connected with the liquid nitrogen vaporization device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203028352U CN201292903Y (en) | 2008-11-19 | 2008-11-19 | Fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203028352U CN201292903Y (en) | 2008-11-19 | 2008-11-19 | Fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292903Y true CN201292903Y (en) | 2009-08-19 |
Family
ID=41006380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203028352U Expired - Fee Related CN201292903Y (en) | 2008-11-19 | 2008-11-19 | Fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292903Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852710A (en) * | 2020-07-29 | 2020-10-30 | 无锡工艺职业技术学院 | Fuel atomizing nozzle of engine |
-
2008
- 2008-11-19 CN CNU2008203028352U patent/CN201292903Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852710A (en) * | 2020-07-29 | 2020-10-30 | 无锡工艺职业技术学院 | Fuel atomizing nozzle of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cai Xiaojing Inventor after: Zhang Junfeng Inventor after: Cheng Jijie Inventor after: Song Yuanhong Inventor before: Cai Xiaojing Inventor before: Zhang Junfeng Inventor before: Cheng Jijie |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CAI XIAOJING; ZHANG JUNFENG; CHENG JIJIE TO: CAI XIAOJING; ZHANG JUNFENG; CHENG JIJIE; SONG YUANHONG |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 264003 Yantai street, Laishan District, Shandong, No. 7 AUCMA Co-patentee after: Jereh Energy Services Co., Ltd. Patentee after: Yantai Jereh Oilfield Services Group Co., Ltd. Address before: 264003 Yantai street, Laishan District, Shandong, No. 7 AUCMA Co-patentee before: Yantai Jereh Energy Petroleum Development Co.,Ltd. Patentee before: Yantai Jereh Oilfield Services Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20131119 |