CN109630238B - Fuel injection atomizer - Google Patents
Fuel injection atomizer Download PDFInfo
- Publication number
- CN109630238B CN109630238B CN201910082684.7A CN201910082684A CN109630238B CN 109630238 B CN109630238 B CN 109630238B CN 201910082684 A CN201910082684 A CN 201910082684A CN 109630238 B CN109630238 B CN 109630238B
- Authority
- CN
- China
- Prior art keywords
- nozzle
- cooling fluid
- mounting
- hole
- fuel injection
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 27
- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 239000012809 cooling fluid Substances 0.000 claims abstract description 60
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 239000000428 dust Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/11—Adding substances to exhaust gases the substance or part of the dosing system being cooled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
Abstract
The invention discloses a fuel injection atomizing device, which comprises a nozzle and a mounting bracket; the side surface of the nozzle is provided with a part to be cooled; the mounting bracket is characterized by comprising a cooling fluid inlet, a cooling fluid outlet and a mounting through hole extending along the height direction; the nozzle penetrates through the mounting through hole, the nozzle is respectively and hermetically connected with two ends of the mounting through hole, a cooling circulation cavity is formed between the nozzle and the mounting through hole, and the cooling circulation cavity is respectively communicated with the cooling fluid inlet and the cooling fluid outlet; the part of the nozzle to be cooled is positioned in the cooling circulation cavity. The invention can lead the cooling fluid to be directly contacted with the area of the nozzle surface needing cooling so as to achieve good heat dissipation effect.
Description
Technical Field
The present invention relates to a fuel injection atomizer.
Background
With the implementation of the national six/ohexa standard, in order to increase the fuel emission requirements of the engine, it is necessary to install a fine dust filter in the exhaust system of the fuel engine to filter particles and reduce the emission of fine dust. To prevent the particulate filter from being exhausted after a certain application time, the particulate filter needs to be regenerated periodically. This regeneration is accomplished by raising the temperature to about 600 c, at which the dust particles, especially soot, are burned. The temperature increase is usually achieved by burning a fuel, such as diesel fuel, which is injected via an injection valve into an oxidation catalyst in the exhaust system upstream of the dust filter, and which is oxidized or burnt to increase the temperature of the exhaust gas, so that the corresponding exhaust gas reaches the rear dust filter and is regenerated there.
In the existing fuel injection atomizing device, a split structure is adopted for a nozzle and a mounting bracket, a cooling fluid cannot be in direct contact with a region, which needs to be cooled, of the surface of the nozzle, the heat dissipation effect is poor, the nozzle is easy to be heated and deformed, and the nozzle is invalid and has a short service life. In addition, the nozzle is sealed with the mounting bracket by welding an additional sealing ring, and leakage is easily generated after high and low temperature and vibration impact.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the fuel injection atomizing device which can enable cooling fluid to directly contact with the area of the surface of the nozzle to be cooled so as to achieve good heat dissipation effect, is simple to assemble, and can realize reliable sealing between the nozzle and the mounting bracket.
The embodiment of the invention provides a fuel injection atomizing device, which comprises a nozzle and a mounting bracket; the side surface of the nozzle is provided with a part to be cooled; the mounting bracket is characterized by comprising a cooling fluid inlet, a cooling fluid outlet and a mounting through hole extending along the height direction; the nozzle penetrates through the mounting through hole, the nozzle is respectively and hermetically connected with two ends of the mounting through hole, a cooling circulation cavity is formed between the nozzle and the mounting through hole, and the cooling circulation cavity is respectively communicated with the cooling fluid inlet and the cooling fluid outlet; the part of the nozzle to be cooled is positioned in the cooling circulation cavity.
The fuel injection atomizing device is characterized in that the nozzles are respectively welded with two ends of the mounting through hole.
The invention has at least the following technical effects:
1. in the fuel injection atomizing device provided by the embodiment of the invention, the area of the surface of the nozzle to be cooled can be in direct contact with the cooling fluid flowing in from the cooling fluid inlet of the mounting bracket, so that the heat dissipation effect of the nozzle is improved, and the cooling fluid can also take away the heat transferred by the exhaust pipe, thereby preventing the nozzle from being deformed due to heating and the material failure caused by repeated heating;
2. according to the embodiment of the invention, the nozzle and the two ends of the mounting through hole of the mounting bracket are welded together, so that the effective fixation of the nozzle and the mounting bracket is realized, meanwhile, the good sealing of the cooling circulation cavity is realized, the process is simple, and the reliability is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows an external schematic view of a fuel injection atomizer according to an embodiment of the present invention.
Fig. 2 and 3 show schematic cross-sectional views of a fuel injection atomizer according to an embodiment of the present invention from two directions perpendicular to each other, respectively.
Fig. 4 shows a schematic view of a nozzle according to an embodiment of the invention.
Fig. 5 shows a schematic flow direction of a cooling fluid of the fuel injection atomizing apparatus according to an embodiment of the present invention, and arrows in fig. 5 indicate the flow direction of the cooling fluid.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Please refer to fig. 1 to 5. The fuel injection atomizer according to an embodiment of the present invention includes a nozzle 1 and a mounting bracket 2.
The upper end and the lower end of the nozzle 1 are respectively provided with an oil inlet 11 and an oil outlet 12, and the side surface of the nozzle 1 is provided with a part to be cooled 13. The position of the part to be cooled 13 corresponds to the actuator in the nozzle 1, which mainly comprises a needle valve, a spring and the like, the working frequency of the parts is 0.5Hz-10Hz, and if the parts are subjected to high temperature for a long time, high-temperature deformation and abrasion occur, and the risks of fatigue fracture and abrasion exist, so that the cooling is required to ensure the service life.
The mounting bracket 2 has a cooling fluid inlet 21, a cooling fluid outlet 22, and a mounting through hole 20 extending in the height direction. The cooling fluid inlet 21 and the cooling fluid outlet 22 are for connection with a line for cooling fluid. The nozzle 1 passes through the mounting through hole 20, and the nozzle 1 is respectively connected with two ends of the mounting through hole 20 in a sealing way, a cooling circulation cavity 2a is formed between the nozzle 1 and the mounting through hole 20, and the cooling circulation cavity 2a is respectively communicated with the cooling fluid inlet 21 and the cooling fluid outlet 22. The portion to be cooled 13 of the nozzle 1 is located in the cooling circulation chamber 2 a. Wherein the cooling fluid inlet 21 communicates with the cooling circulation chamber 2a through an inlet channel 23 and the cooling fluid outlet 22 communicates with the cooling circulation chamber 2a through an outlet channel 24.
Since the cooling fluid can directly contact with the portion 13 to be cooled of the nozzle, the heat transfer efficiency of the nozzle 1 to the outside is improved, and the heat transferred in the exhaust pipe can be effectively taken away by the cooling fluid, so that the portion of the nozzle 1 in the cooling circulation cavity 2a can be better cooled. If the portion 13 of the nozzle to be cooled is subjected to high and low temperatures for a long period of time, repeated quenching and annealing effects are generated on the material, and deformation and fracture failure of the material after fatigue are easily caused. Through the structure, the cooling effect is effectively improved, the temperature of the nozzle is controlled, and the part at the part to be cooled 13 is prevented from being deformed and failed after being subjected to high-temperature durability.
In the present embodiment, the nozzles 1 are welded to both ends of the mounting through-hole 20, respectively. The welding connection can ensure the tightness and the connection strength at the same time, and prevents the cooling circulation cavity formed by the nozzle 1 and the mounting bracket 2 from leaking.
Further, the upper port portion of the mounting through hole 20 has an annular groove 204 extending in the radial direction, the side surface of the nozzle 1 is provided with an annular flange 14 which is matched with the annular groove 204, and the annular flange 14 extends into the annular groove 204 and is in sealing connection with the annular groove 204 by welding. The mounting through hole 20 includes a small hole 20a having a smaller diameter and a large hole 20b having a larger diameter, the small hole 20a is located at the lower end of the mounting through hole 20, the upper end of the small hole 20a is connected to the lower end of the large hole 20b, and the annular groove 204 is located at the upper end of the large hole 20 b. The side of the nozzle 1 is hermetically connected to the side of the orifice 20a by welding.
In the present embodiment, the side surface of the nozzle 1 is provided with a first flow guiding portion 15 for guiding the cooling fluid flowing into the cooling circulation chamber 2a to the portion to be cooled 13 and a second flow guiding portion 16 for guiding the cooling fluid at the portion to be cooled to the cooling fluid outlet. The cooling fluid flowing out from the cooling fluid inlet 21 flows toward the portion to be cooled 13 of the nozzle 1 under the guidance of the first diversion portion 15, sufficiently contacts the portion to be cooled 13, and then flows toward the cooling fluid outlet 22 along the second diversion portion 16. The first diversion part 15 and the second diversion part 16 can guide the cooling fluid to quickly flow to the part to be cooled 13 of the nozzle 1, so that the phenomenon that the cooling fluid directly flows to the cooling fluid outlet 22 without passing through the part to be cooled 13 is restrained, and the part to be cooled 13 is quickly cooled. The cooling fluid may be cooling water or cooling wind.
In the present embodiment, the cooling fluid inlet 21 and the cooling fluid outlet 22 are located on both sides of the cooling circulation chamber 2a, respectively. The first flow guiding portion 15 and the second flow guiding portion 16 are symmetrically arranged about the central axis of the nozzle 1, the first flow guiding portion 15 is close to the cooling fluid inlet 21, and the second flow guiding portion 16 is close to the cooling fluid outlet 22. The number of the first diversion parts 15 and the second diversion parts 16 is one. In other embodiments, when the mounting bracket 2 is provided with a plurality of inlets for the cooling fluid and a plurality of outlets for the cooling fluid in the circumferential direction of the cooling circulation chamber 2a, the number of the first and second flow guiding portions 15 and 16 is also set to be plural.
Further, the nozzle side surfaces in the circumferential extension direction of the first flow guiding portion 15 and the second flow guiding portion 16 (the nozzle side surface portions between the first flow guiding portion 15 and the second flow guiding portion 16 when the number of the first flow guiding portion 15 and the second flow guiding portion 16 is one) are closely attached to the side surfaces of the mounting through holes 20, whereby the cooling fluid can be prevented from directly flowing from the first flow guiding portion 15 to the cooling fluid outlet 22 along the gap between the side surfaces of the nozzle 1 and the mounting through hole side walls (i.e., flowing to the cooling fluid outlet 22 without flowing to the portion to be cooled 13), thereby improving the cooling effect of the portion to be cooled 13.
Alternatively, the first flow guiding portion 15 is composed of a flat surface portion 151 and a concave arc surface portion 152, and the second flow guiding portion 16 is composed of a flat surface portion 161 and a concave arc surface portion 162. The plane part of each flow guiding part extends along the axial direction of the nozzle 1, the upper end of the plane part is connected with one end of the concave arc surface part, and the other end of the concave arc surface part extends to the side surface of the nozzle 1. This shape facilitates processing and passage of fluids without fluid impingement and interception. In other embodiments, the planar portions of the first flow guiding portion 15 and the second flow guiding portion 16 may be designed in other shapes, such as arc-shaped or V-shaped grooves, and the flow guiding function can be achieved as well.
Further, the mounting bracket 2 includes a bracket body 2b and a protruding portion 2c protruding downward from the bottom of the bracket body, and the lower end of the mounting through hole 20 is opened to the top surface of the protruding portion 2 c. The fuel injection atomizer further comprises a sealing gasket 3. The sealing gasket 3 includes a gasket body 3a and a bulge portion 3b bulging downward from the gasket body 3a, the bulge portion 3b having a receiving cavity 3c, the gasket body 3a being closely attached to the bottom surface of the bracket body 2b and being connected to the bracket body 2 b. In the present embodiment, the bracket body 2b is provided with a plurality of first bolt holes 21b extending in the height direction, and the gasket body 3a is provided with second bolt holes 31a corresponding to the plurality of first bolt holes 21 b. When the mounting is performed, the bolts penetrate through the first bolt holes 21b and the second bolt holes 31a, the mounting bracket 2 and the sealing gasket 3 are fixed on the exhaust pipe, sealing is realized, and gas in the exhaust pipe is prevented from being diffused to the outside through the mounting holes on the exhaust pipe. The protruding portion 2c protrudes into the accommodating cavity 3c of the bulge portion 3b, and a gap g is provided between the top surface of the protruding portion 2c and the bottom surface of the accommodating cavity 3 c. The gap g constitutes an insulating cavity that prevents heat from being transferred directly through the mounting bracket 2 to the portion 13 to be cooled. The top surface of the bulge part 3b is provided with an opening 32b at a position corresponding to the oil outlet 12 arranged on the lower end surface of the nozzle, the lower end of the nozzle 1 is abutted against the bottom surface of the accommodating cavity 3c or stretches into the opening 32b, and a gap or interference fit can be formed between the nozzle 1 and the opening 32 b.
Optionally, the entire surface of the sealing gasket 3 is covered with a heat insulating coating, which can further improve the heat insulating effect.
In the fuel injection atomizing device according to the embodiment of the invention, the area of the nozzle surface to be cooled can be in direct contact with the cooling fluid flowing in from the cooling fluid inlet of the mounting bracket, so that the heat dissipation effect of the nozzle is improved, and the cooling fluid can also take away the heat transferred by the exhaust pipe, thereby preventing the nozzle from being deformed due to heating and the material failure caused by repeated heating.
In the description of the present invention, it will be understood that the use of directional terms "upper", "lower", etc. are used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. A fuel injection atomizer comprises a nozzle and a mounting bracket; the side surface of the nozzle is provided with a part to be cooled; the mounting bracket is characterized by comprising a cooling fluid inlet, a cooling fluid outlet and a mounting through hole extending along the height direction; the nozzle penetrates through the mounting through hole, the nozzle is respectively connected with two ends of the mounting through hole in a sealing way, a cooling circulation cavity is formed between the nozzle and the mounting through hole, and the cooling circulation cavity is respectively communicated with the cooling fluid inlet and the cooling fluid outlet; the part to be cooled of the nozzle is positioned in the cooling circulation cavity;
the side surface of the nozzle is provided with a first diversion part used for guiding the cooling fluid flowing into the cooling circulation cavity to flow to the part to be cooled and a second diversion part used for guiding the cooling fluid at the part to be cooled to flow to the cooling fluid outlet; the side surface of the nozzle in the circumferential extension direction of the first flow guiding part and the second flow guiding part is tightly attached to the side surface of the mounting through hole.
2. The fuel injection atomizer according to claim 1, wherein the nozzles are welded to both ends of the mounting through hole, respectively.
3. The fuel injection atomizer according to claim 1 or 2, wherein the upper port portion of the mounting through hole has an annular groove extending in a radial direction, and an annular flange fitted with the annular groove is provided on a side surface of the nozzle, and the annular flange extends into the annular groove and is connected with the annular groove in a sealing manner.
4. The fuel injection atomizer according to claim 1 or 2, wherein the mounting through hole comprises a small hole having a smaller diameter and a large hole having a larger diameter, the small hole is located at the lower end of the mounting through hole, and the upper end of the small hole is connected to the lower end of the large hole;
the side face of the nozzle is in sealing connection with the side face of the small hole.
5. The fuel injection atomizer according to claim 1, wherein the cooling fluid inlet and the cooling fluid outlet are located on both sides of the cooling circulation chamber, respectively;
the first diversion part and the second diversion part are symmetrically arranged about the central axis of the nozzle, the first diversion part is close to the cooling fluid inlet, and the second diversion part is close to the cooling fluid outlet.
6. The fuel injection atomizer according to claim 1 or 5, wherein the first flow guide portion and the second flow guide portion are each composed of a flat surface portion and a concave arc surface portion; the plane part extends along the axial direction of the nozzle, the plane part is connected with one end of the concave arc surface part, and the other end of the concave arc surface part extends to the side surface of the nozzle.
7. The fuel injection atomizer according to claim 1, wherein the mounting bracket includes a bracket body and a projection projecting downward from a bottom of the bracket body, a lower end of the mounting through hole being open to a top surface of the projection;
the fuel injection atomizing device further comprises a sealing gasket; the sealing gasket comprises a gasket body and a bulge part which bulges downwards from the gasket body, wherein the bulge part is provided with a containing cavity; the gasket body is tightly attached to the bottom surface of the bracket body and is connected with the bracket body; the convex part stretches into the accommodating cavity of the bulge part, and a gap is formed between the top surface of the convex part and the bottom surface of the accommodating cavity;
the top surface of the bulge part is provided with an opening at a position corresponding to the oil outlet arranged on the lower end surface of the nozzle, and the lower end of the nozzle is abutted against the bottom surface of the accommodating cavity or stretches into the opening.
8. The fuel injection atomizer according to claim 7, wherein the sealing gasket is coated with a heat insulating coating over the entire surface thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082684.7A CN109630238B (en) | 2019-01-28 | 2019-01-28 | Fuel injection atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082684.7A CN109630238B (en) | 2019-01-28 | 2019-01-28 | Fuel injection atomizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109630238A CN109630238A (en) | 2019-04-16 |
| CN109630238B true CN109630238B (en) | 2024-03-19 |
Family
ID=66064004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910082684.7A Active CN109630238B (en) | 2019-01-28 | 2019-01-28 | Fuel injection atomizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630238B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020214468A1 (en) * | 2020-11-18 | 2022-05-19 | Robert Bosch Gesellschaft mit beschränkter Haftung | Device for admixing a liquid reducing agent into an exhaust gas pipe of an internal combustion engine, arrangement for an exhaust gas aftertreatment system |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008169711A (en) * | 2007-01-09 | 2008-07-24 | Denso Corp | Reducer supply device |
| CN101629506A (en) * | 2008-07-14 | 2010-01-20 | 三菱自动车工业株式会社 | Exhaust gas purifying device |
| CN102459836A (en) * | 2009-06-25 | 2012-05-16 | 罗伯特·博世有限公司 | Sealing unit |
| CN105257378A (en) * | 2015-11-18 | 2016-01-20 | 天纳克（苏州）排放系统有限公司 | Spray nozzle assembly |
| CN105473831A (en) * | 2013-06-20 | 2016-04-06 | 罗伯特·博世有限公司 | Cooling element for injection valve |
| CN105793532A (en) * | 2013-12-03 | 2016-07-20 | 罗伯特·博世有限公司 | Metering module for metering AdBlue |
| WO2017029076A1 (en) * | 2015-08-20 | 2017-02-23 | Robert Bosch Gmbh | Fuel injector |
| CN107387206A (en) * | 2017-08-17 | 2017-11-24 | 无锡威孚高科技集团股份有限公司 | A kind of fuel nozzle for dpf regeneration system |
| CN207634150U (en) * | 2017-10-31 | 2018-07-20 | 凯龙高科技股份有限公司 | A kind of metering injector of the spliced cooling jacket of band |
| CN209671050U (en) * | 2019-01-28 | 2019-11-22 | 浙江科博达工业有限公司 | Fuel oil jet atomization device |
| CN211314326U (en) * | 2019-12-31 | 2020-08-21 | 潍柴动力股份有限公司 | HC measures injection system |
-
2019
- 2019-01-28 CN CN201910082684.7A patent/CN109630238B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008169711A (en) * | 2007-01-09 | 2008-07-24 | Denso Corp | Reducer supply device |
| CN101629506A (en) * | 2008-07-14 | 2010-01-20 | 三菱自动车工业株式会社 | Exhaust gas purifying device |
| CN102459836A (en) * | 2009-06-25 | 2012-05-16 | 罗伯特·博世有限公司 | Sealing unit |
| CN105473831A (en) * | 2013-06-20 | 2016-04-06 | 罗伯特·博世有限公司 | Cooling element for injection valve |
| CN105793532A (en) * | 2013-12-03 | 2016-07-20 | 罗伯特·博世有限公司 | Metering module for metering AdBlue |
| WO2017029076A1 (en) * | 2015-08-20 | 2017-02-23 | Robert Bosch Gmbh | Fuel injector |
| CN105257378A (en) * | 2015-11-18 | 2016-01-20 | 天纳克（苏州）排放系统有限公司 | Spray nozzle assembly |
| CN107387206A (en) * | 2017-08-17 | 2017-11-24 | 无锡威孚高科技集团股份有限公司 | A kind of fuel nozzle for dpf regeneration system |
| CN207634150U (en) * | 2017-10-31 | 2018-07-20 | 凯龙高科技股份有限公司 | A kind of metering injector of the spliced cooling jacket of band |
| CN209671050U (en) * | 2019-01-28 | 2019-11-22 | 浙江科博达工业有限公司 | Fuel oil jet atomization device |
| CN211314326U (en) * | 2019-12-31 | 2020-08-21 | 潍柴动力股份有限公司 | HC measures injection system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109630238A (en) | 2019-04-16 |
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