CN202065108U - Oil nozzle for diesel engine - Google Patents
Oil nozzle for diesel engine Download PDFInfo
- Publication number
- CN202065108U CN202065108U CN2011201607278U CN201120160727U CN202065108U CN 202065108 U CN202065108 U CN 202065108U CN 2011201607278 U CN2011201607278 U CN 2011201607278U CN 201120160727 U CN201120160727 U CN 201120160727U CN 202065108 U CN202065108 U CN 202065108U
- Authority
- CN
- China
- Prior art keywords
- needle
- oil nozzle
- guide cylinder
- valve
- needle valve
- 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
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to an oil nozzle, in particular to an oil nozzle for a diesel engine. The oil nozzle comprises a needle valve and a needle valve body, wherein two guide columns are arranged on the needle valve, and a spiral groove is arranged on one guide column. The two guide columns can ensure that the axiality of the needle valve and the needle valve body is improved, and the axial movement of the needle valve in the needle valve body is more stable and reliable; the spiral groove is arranged to ensure that the fuel generates force in the tangent direction to drive the needle valve to rotate around the axis when the fuel flows through the spiral groove, and the stability and reliability of the axial movement of the needle valve are further improved.
Description
Technical field:
The utility model relates to a kind of oil nozzle, particularly relates to a kind of oil nozzle that is used for diesel engine.
Background technique:
Along with attention day by day, especially also strict more as the emission standard of the diesel engine of power train in vehicle application at automobile to environmental problem.At present, China's road is a state III emission standard with the diesel car employing, will start state IV emission standard in China in 2012.
In order to satisfy state IV Abgasgesetz or requirements at the higher level, need improve raising to each parts of diesel engine, oil-fired system must adopt the high-pressure injection technology, improves jet pressure.For stability and the reliability that guarantees system, be necessary the structure of oil nozzle is improved.
Present oil nozzle both domestic and external mainly is made up of needle-valve and needle-valve body, and wherein the fitting surface of needle-valve and needle-valve body has smooth cylndrical surface form, cylndrical surface to add annular groove form etc.
The model utility content:
The purpose of this utility model provides a kind of new structure oil nozzle, and this oil nozzle has better stability and reliability satisfying under the condition of oil-fired system to the high injection pressure requirement.
The technological scheme that the utility model adopted is: a kind of use for diesel engine oil nozzle, comprise needle-valve 1 and needle-valve body 2, and described needle-valve 1 is provided with guide cylinder 3 and 4 two sections guide cylinder of guide cylinder, is provided with spiral chute 5 on described guide cylinder 4.
The technological scheme that the utility model adopted and the difference of prior art are: established on needle-valve and have the two guide cylinder of some spiral fluteds.Advantage is: two guide cylinder can improve the coaxality of needle-valve and needle-valve body, make the axial motion of needle-valve in needle-valve body more steadily, reliably; And on the basis of two guide cylinder, offer spiral chute, and can make fuel oil when flowing through spiral chute, produce the power of tangent direction, the generation of promotion needle-valve rotatablely moves around axis, further improves the stability and the reliability of needle-valve axial motion.
According to a kind of favourable structure, spiral fluted quantity described in the utility model, screw pitch value, shape and groove depth can be adjusted the fuel injection quantity of oil-fired system, the requirement of jet pressure according to different diesel engines.
According to a kind of favourable structure, this uses the length of novel described guide cylinder 4 and the position on needle-valve thereof to adjust the fuel injection quantity of oil-fired system, the requirement of jet pressure according to different diesel engines.
Description of drawings:
Fig. 1 is embodiment of the present utility model, the oil nozzle structural representation.
Fig. 2 is the structural representation of needle-valve 1 among Fig. 1.
Label declaration: 1, needle-valve, 2, needle-valve body, 3, guide cylinder, 4, guide cylinder, 5, spiral chute, 6, oil holding slot, 7, pressure accumulating chamber.
Embodiment:
Below in conjunction with structure characteristic and the working condition of accompanying drawing 1-2 detailed description according to the specific embodiment that the utility model proposes.
Embodiment: a kind of use for diesel engine oil nozzle, form by needle-valve 1 and needle-valve body 2, wherein be provided with 4 two sections guide cylinder of guide cylinder 3 and guide cylinder on the needle-valve 1, on guide cylinder 4, offered spiral chute 5.
The mode of execution of spiral chute 5 is the conducting spiral chute, and as shown in Figure 1, its import is positioned at the end of needle-valve guide cylinder 4 near the oil holding slot 6 of needle-valve body 2, and outlet is positioned at the end of needle-valve guide cylinder 4 near the pressure accumulating chamber 7 of needle-valve body 2.
The quantity of spiral chute 5 is 1～16, and the screw pitch value is 1～500mm, is shaped as circular arc, rectangle, triangle; The ratio of the diameter D1 of the depth delta D1 of spiral chute 5 and guide cylinder 4 is 5%～40%.
The length L 1 of guide cylinder 4 is 1%～40% with the ratio of the length L 0 of needle-valve 1; The edge, upper reaches of guide cylinder 4 is 5%～90% to the ratio of the distance L 2 of 1 top of needle-valve and needle-valve 1 length L 0.
By changing quantity, screw pitch value, shape and the groove depth of spiral chute 5, and the length of guide cylinder 4 and position, can obtain the different characteristics of motion of needle-valve 1, to satisfy of the requirement of different diesel engines to oil nozzle oil mass, jet pressure.
Claims (8)
1. a use for diesel engine oil nozzle comprises needle-valve (1) and needle-valve body (2), it is characterized in that: described needle-valve (1) is provided with guide cylinder (3) and (4) two sections guide cylinder of guide cylinder, is provided with spiral chute (5) on described guide cylinder (4).
2. oil nozzle according to claim 1, it is characterized in that: described spiral chute (5) is the conducting spiral chute, import is positioned at the end of needle-valve guide cylinder (4) near oil holding slot (6), and outlet is positioned at the end of needle-valve guide cylinder (4) near pressure accumulating chamber (7).
3. oil nozzle according to claim 1 is characterized in that: the screw pitch value of described spiral chute (5) is 1～500mm.
4. oil nozzle according to claim 1 is characterized in that: the quantity of described spiral chute (5) is 1～16.
5. oil nozzle according to claim 1 is characterized in that: described spiral chute (5) be shaped as circular arc, rectangle, triangle.
6. oil nozzle according to claim 1 is characterized in that: the diameter ratio of the degree of depth of described spiral chute (5) and guide cylinder (4) is 5%～40%.
7. oil nozzle according to claim 1 is characterized in that: the length of described guide cylinder (4) and needle-valve (1) length ratio are 1%～40%.
8. oil nozzle according to claim 1 is characterized in that: the edge, upper reaches of described guide cylinder (4) is 5%～90% to the distance of top of needle-valve (1) with needle-valve (1) length ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201607278U CN202065108U (en) | 2011-05-12 | 2011-05-12 | Oil nozzle for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201607278U CN202065108U (en) | 2011-05-12 | 2011-05-12 | Oil nozzle for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065108U true CN202065108U (en) | 2011-12-07 |
Family
ID=45058973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201607278U Expired - Lifetime CN202065108U (en) | 2011-05-12 | 2011-05-12 | Oil nozzle for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670859A (en) * | 2012-09-12 | 2014-03-26 | 北京亚新科天纬油泵油嘴股份有限公司 | Ejection nozzle of ejector |
-
2011
- 2011-05-12 CN CN2011201607278U patent/CN202065108U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670859A (en) * | 2012-09-12 | 2014-03-26 | 北京亚新科天纬油泵油嘴股份有限公司 | Ejection nozzle of ejector |
| CN103670859B (en) * | 2012-09-12 | 2016-08-03 | 北京亚新科天纬油泵油嘴股份有限公司 | The jet blower of ejector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104314725A (en) | Middle hole pressure storage static leakage-free oil sprayer | |
| CN204200442U (en) | A kind of mesopore pressure accumulation is without static leakage oil sprayer | |
| CN202065108U (en) | Oil nozzle for diesel engine | |
| CN103670851B (en) | Be applicable to two high-pressure oil pipe oil sprayers of dimethyl ether fuel | |
| CN102322378B (en) | Low-viscosity fuel injector of diesel engine | |
| CN202900500U (en) | Oil inlet and outlet valve assembly for common rail high-pressure oil pump | |
| CN203919611U (en) | Wax injector casting valve body mechanical mechanism | |
| CN203867753U (en) | Oil sprayer | |
| CN203099824U (en) | Inner oil return mechanical atomizing nozzle | |
| CN201723518U (en) | Electric-controlled hydraulic servo valve | |
| CN203146834U (en) | Axial-flow type single-seat regulating valve | |
| CN203570481U (en) | Mechanical oil atomizer with variable oil injection rate | |
| CN203730191U (en) | Gasoline engine injection nozzle | |
| CN202108711U (en) | Proportion adjustment pump of ternary injection and polymer injection for oil field | |
| CN204253222U (en) | A kind of fuel economizer | |
| CN201531347U (en) | metering valve | |
| CN204476640U (en) | A kind of control valve assembly | |
| CN104632488A (en) | Oil nozzle mechanism for gasoline engine | |
| CN202628351U (en) | Mechanical oil sprayer of diesel engine for engineering machinery | |
| CN2898419Y (en) | Self-locking static-pressure guide rail | |
| CN201603645U (en) | Double freedom degree electric-hydraulic control oil sprayer | |
| CN202811092U (en) | Dual-fuel oil path control system | |
| CN204327364U (en) | The diesel engine fuel injecting device of architecture advances | |
| CN202266818U (en) | Auxiliary refueling device for electromagnetic drum | |
| CN202768176U (en) | Device capable of automatically adjusting oil supply density according to road condition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170718 Address after: 214063 Jiangsu city of Wuxi province Qian Rong Lu No. 15 Patentee after: China FAW Group Corporation Address before: 214063 Jiangsu city of Wuxi province Qian Rong Lu No. 15 Patentee before: Wuxi Fuel Injection Equipment Institute, China FAW Group Corporation |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |