CN202756145U - Diesel engine injector nozzle matching part - Google Patents
Diesel engine injector nozzle matching part Download PDFInfo
- Publication number
- CN202756145U CN202756145U CN 201220420746 CN201220420746U CN202756145U CN 202756145 U CN202756145 U CN 202756145U CN 201220420746 CN201220420746 CN 201220420746 CN 201220420746 U CN201220420746 U CN 201220420746U CN 202756145 U CN202756145 U CN 202756145U
- Authority
- CN
- China
- Prior art keywords
- needle
- valve body
- needle valve
- oil
- diesel engine
- 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
Links
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a diesel engine injector nozzle matching part which comprises a needle valve body and a needle valve arranged in a guide central hole of the needle valve body. An annular oil accommodation tank is arranged in the middle of the guide central hole, a low pressure cavity communicated with the guide central hole is arranged at he lower portion of the oil accommodation tank, a needle valve body sealing conical face is formed at the lower end of the low pressure valve, an oil inlet communicated with the oil accommodation tank from an end face of the needle valve body is positioned in the needle valve body, and a cooling mechanism is arranged at the head portion of the needle valve body. The cooling mechanism is arranged at the head portion of the needle valve body of the injector nozzle matching part. Thus, the diesel engine injector nozzle matching part has the advantages of preventing materials of the needle valve and the needle valve body from overheating to change, preventing the needle valve from being clamped and slowing down carbon deposit of a spray hole.
Description
Technical field
The utility model relates to a kind of injector nozzle matching parts, relates in particular to a kind of oil nozzle for diesel engine couple.
Background technique
Common oil nozzle for diesel engine couple generally comprises needle-valve body and is located at the interior needle-valve of needle-valve body, also be provided with oil inlet hole in the needle-valve body, high pressure fuel enters on the conical surface that oil holding slot acts on needle-valve through oil inlet hole from inlet connector, the pretightening force that overcomes spring is lifted needle-valve, when needle-valve one is lifted off a seat, its pressure-bearing surface increases suddenly, and needle-valve is risen fast, makes fuel oil spray into cylinder through spray orifice decidedly.During diesel engine work, the temperature of oil nozzle should not surpass the temperature requirement of its material regulation, to guarantee good normal work, especially for the higher diesel engine of reinforcing degree, the cooling of oil nozzle is even more important, in case oil nozzle is overheated, the material generation qualitative change of needle-valve and needle-valve body, cause needle-valve to block or the phenomenon such as spray orifice carbon distribution, even can stop up spray orifice, and common common oil nozzle does not generally arrange cooling mechanism, so can cause excess Temperature during the oil sprayer continuous firing and affect its usability.
Chinese patent notice of authorization number: CN102003320A, disclose a kind of injector nozzle matching parts April 6 2011 notice of authorization day, comprises needle-valve body and needle-valve, the upper end of described needle-valve body is the seal face of fitting with the oil-injection machine assembly, and the lower end of needle-valve body is provided with spray orifice; Be provided with the guiding mesopore that can place needle-valve in the inside of described needle-valve body, form spherical oil holding slot at the middle part of guiding mesopore, in the bottom of oil holding slot be and the low-pressure cavity of guiding mesopore UNICOM, the lower end of low-pressure cavity forms the needle-valve body sealing cone; Needle-valve comprises the guiding cylindrical on top and the little cylindrical of bottom, above the guiding cylindrical, be provided with pressure mandril, set gradually first conical surface, second conical surface, spray boom transition cylinder and spray boom below little cylindrical, the cone angle of described first conical surface is less than the cone angle of second conical surface.The present invention has improved product percent of pass, has improved atomization quality, burns more abundant, further improves the demand that product is energy-conservation, reduce discharging.Its deficiency is that cooling mechanism is not set on this kind injector nozzle matching parts, thereby when oil nozzle was overheated, qualitative change easily occured the material of needle-valve and needle-valve body, causes needle-valve to block or the phenomenon such as spray orifice carbon distribution, has a strong impact on the usability of oil sprayer.
The model utility content
The utility model lacks cooling mechanism in order to overcome injector nozzle matching parts of the prior art, qualitative change easily occurs and causes needle-valve to block or the spray orifice carbon distribution in the material of needle-valve and needle-valve body, thereby have a strong impact on the deficiency of oil sprayer usability, provide a kind of and be provided with cooling mechanism in the needle-valve body lower end, the material that prevents needle-valve and needle-valve body is overheated and qualitative change occurs, thus the oil nozzle for diesel engine couple of avoiding needle-valve to block and slowing down the spray orifice carbon distribution.
To achieve these goals, the utility model adopts following technological scheme:
A kind of oil nozzle for diesel engine couple, comprise needle-valve body and the interior needle-valve of the guiding mesopore that is arranged on needle-valve body, the middle part of described guiding mesopore is provided with the oil holding slot of annular, the bottom of described oil holding slot is the low-pressure cavity that is communicated with the guiding mesopore, described low-pressure cavity lower end forms the needle-valve body sealing cone, also be provided with the oil inlet hole from needle-valve body end face and oil holding slot perforation in the described needle-valve body, described needle-valve body head is provided with cooling mechanism.Injector nozzle matching parts is when work, the temperature of oil nozzle can raise, when oil nozzle is overheated, the material generation qualitative change of needle-valve and needle-valve body causes needle-valve to block or the phenomenon such as spray orifice carbon distribution, even can stop up spray orifice, the needle-valve body head of injector nozzle matching parts arranges cooling mechanism in this structure, the material that can effectively prevent needle-valve and needle-valve body is overheated and qualitative change occurs, thereby the phenomenon of avoiding needle-valve to block and slowing down the spray orifice carbon distribution improves the performance of whole oil sprayer.
As preferably, described needle-valve body head outer surface is provided with circular groove, the outside of described circular groove is provided with stuffing box gland, also is provided with two in the described needle-valve body from the Cooling Holes of needle-valve body end and circular groove perforation, and described circular groove, stuffing box gland and Cooling Holes consist of described cooling mechanism.Stuffing box gland surrounds circular groove the annular housing of a sealing, the annular housing of while two Cooling Holes and sealing connects, cooling liquid enters in the annular housing in a Cooling Holes, cooling liquid absorbs the heat of oil nozzle head, then elution band is walked heat from another Cooling Holes, thereby guarantee that needle-valve and needle-valve body can be not overheated and produce qualitative change, thereby effectively avoid needle-valve body to block and slow down the phenomenon of spray orifice carbon distribution.
As preferably, the outside interference fit of described stuffing box gland and the corresponding circular groove of described needle-valve body head.Interference fit can guarantee the sealing of stuffing box gland and needle-valve body lower end outer surface, prevents that cooling liquid from spilling.
As preferably, the ring slot outside that described stuffing box gland is corresponding with the needle-valve body head is welded to connect.Welding further increases sealing and connection reliability, prevents that stuffing box gland from coming off, and can also increase the intensity of needle-valve body simultaneously.
Therefore, the utlity model has the material that prevents needle-valve and needle-valve body overheated and qualitative change occurs, thereby avoid needle-valve to block and slow down the beneficial effect of spray orifice carbon distribution.
Description of drawings
Fig. 1 is plan view of the present utility model.
Fig. 2 is the utility model K-K place schematic cross-section.
Fig. 3 is the utility model A-A place schematic cross-section.
Among the figure: needle-valve body 1 needle-valve 2 guiding mesopores 3 oil holding slots 4 low-pressure cavity 5 Cooling Holes 6 circular grooves 7 stuffing box glands 89.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described:
A kind of oil nozzle for diesel engine couple as depicted in figs. 1 and 2, comprise needle-valve body 1 and be arranged on needle-valve 2 in the guiding mesopore 3 of needle-valve body, the middle part of guiding mesopore 3 is provided with the oil holding slot 4 of annular, the bottom of oil holding slot 4 is the low-pressure cavity 5 that is communicated with the guiding mesopore, low-pressure cavity 5 lower ends form the needle-valve body sealing cone, also be provided with the oil inlet hole 6 from needle-valve body end face and oil holding slot perforation in the needle-valve body 1, needle-valve body 1 head outer surface is provided with circular groove 7, the outside of circular groove 7 is provided with the stuffing box gland corresponding with circular groove 8, stuffing box gland is enclosed within the head of needle-valve body, circular groove is surrounded the annular housing of a sealing, also be provided with two Cooling Holes 9 in the needle-valve body 1, one end of Cooling Holes is communicated with the needle-valve body upper-end surface, one side of the other end and circular groove connects, cooling liquid flows in the annular housing from a Cooling Holes, absorb the heat of needle-valve body head, then elution band is walked heat from another Cooling Holes, the material that can effectively prevent needle-valve and needle-valve body is overheated and qualitative change occurs, thereby avoiding needle-valve to block can slow down spray orifice carbon distribution phenomenon simultaneously; The outside interference fit of the circular groove 7 that stuffing box gland 8 is corresponding with the needle-valve body head, stuffing box gland 8 is enclosed within after the needle-valve body head outside and at seam crossing and welds, guarantee on the one hand the sealing of stuffing box gland and needle-valve body lower end outer surface, prevent that cooling liquid from spilling, further increase on the other hand sealing and connection reliability, prevent that stuffing box gland from coming off, can also increase the intensity of needle-valve body simultaneously.Therefore, the utlity model has the material that prevents needle-valve and needle-valve body overheated and qualitative change occurs, thereby avoid needle-valve to block and slow down the beneficial effect of spray orifice carbon distribution.
Claims (4)
1. oil nozzle for diesel engine couple, comprise needle-valve body (1) and be arranged on needle-valve (2) in the guiding mesopore (3) of needle-valve body, the middle part of described guiding mesopore (3) is provided with the oil holding slot (4) of annular, the bottom of described oil holding slot (4) is the low-pressure cavity (5) that is communicated with the guiding mesopore, described low-pressure cavity (5) lower end forms the needle-valve body sealing cone, also be provided with the oil inlet hole (6) from needle-valve body end face and oil holding slot perforation in the described needle-valve body (1), it is characterized in that, described needle-valve body (1) head is provided with cooling mechanism.
2. a kind of oil nozzle for diesel engine couple according to claim 1, it is characterized in that, described needle-valve body (1) head outer surface is provided with circular groove (7), the outside of described circular groove (7) is provided with stuffing box gland (8), also be provided with two in the described needle-valve body (1) from the Cooling Holes (9) of needle-valve body end and circular groove (7) perforation, described circular groove (7), stuffing box gland (8) and Cooling Holes (6) consist of described cooling mechanism.
3. a kind of oil nozzle for diesel engine couple according to claim 2 is characterized in that, the outside interference fit of the circular groove (7) that described stuffing box gland (8) is corresponding with described needle-valve body head.
4. according to claim 2 or 3 described a kind of oil nozzle for diesel engine couples, it is characterized in that, the circular groove that described stuffing box gland (8) is corresponding with the needle-valve body head (7) outside is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420746 CN202756145U (en) | 2012-08-23 | 2012-08-23 | Diesel engine injector nozzle matching part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420746 CN202756145U (en) | 2012-08-23 | 2012-08-23 | Diesel engine injector nozzle matching part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756145U true CN202756145U (en) | 2013-02-27 |
Family
ID=47735332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220420746 Expired - Fee Related CN202756145U (en) | 2012-08-23 | 2012-08-23 | Diesel engine injector nozzle matching part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756145U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084550A1 (en) * | 2015-11-18 | 2017-05-26 | 天纳克（苏州）排放系统有限公司 | Nozzle assembly |
| CN107567540A (en) * | 2015-04-14 | 2018-01-09 | Ge延巴赫两合无限公司 | The component being made up of cylinder head and fuel injector |
| CN108661835A (en) * | 2018-06-20 | 2018-10-16 | 潍柴重机股份有限公司 | Oil sprayer bushing |
| CN114542340A (en) * | 2022-03-30 | 2022-05-27 | 重庆红江机械有限责任公司 | Dual-fuel nozzle |
-
2012
- 2012-08-23 CN CN 201220420746 patent/CN202756145U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107567540A (en) * | 2015-04-14 | 2018-01-09 | Ge延巴赫两合无限公司 | The component being made up of cylinder head and fuel injector |
| CN107567540B (en) * | 2015-04-14 | 2020-05-08 | 交通知识产权控股有限公司 | Assembly of a cylinder head and a fuel injector |
| WO2017084550A1 (en) * | 2015-11-18 | 2017-05-26 | 天纳克（苏州）排放系统有限公司 | Nozzle assembly |
| CN108661835A (en) * | 2018-06-20 | 2018-10-16 | 潍柴重机股份有限公司 | Oil sprayer bushing |
| CN114542340A (en) * | 2022-03-30 | 2022-05-27 | 重庆红江机械有限责任公司 | Dual-fuel nozzle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202756145U (en) | Diesel engine injector nozzle matching part | |
| CN104314725B (en) | Mesopore pressure accumulation without static leakage fuel injector | |
| CN202900503U (en) | Novel aperture atomizer for diesel engine | |
| CN102400825B (en) | Cooling needle valve matching part for marine diesel engine | |
| CN105822475B (en) | A kind of common-rail injector | |
| CN104454274A (en) | Oil sprayer | |
| CN203175733U (en) | Control jet flat valve structure of electronic control fuel injector | |
| CN101806265A (en) | Swirling electronic-controlled fuel injector of gasoline engine | |
| CN106089523A (en) | A kind of high pressure common rail electric control fuel injector | |
| CN102926904A (en) | Elongated oil nozzle for small bore swirl chamber diesel engine | |
| CN103047061A (en) | Controlled injection flat valve mechanism of electrical oil injector | |
| CN102235283A (en) | Fuel nozzle | |
| CN201386607Y (en) | Gasoline engine spiral-flow electronic controlled injector | |
| CN104358644A (en) | High-speed electromagnetic valve for oil sprayer | |
| CN204900133U (en) | Engine double fuel is injection nozzle simultaneously | |
| CN203098111U (en) | Control injection valve of electronic fuel injector | |
| CN203067143U (en) | Lengthened type oil nozzle for small-cylinder-diameter swirl chamber type diesel engine | |
| CN211116364U (en) | Fuel spray nozzle matching part with multi-focus spray holes | |
| CN106968857A (en) | Petrol engine fuel injector nozzle | |
| CN103047060A (en) | Controlled injection valve of electrical oil injector | |
| CN209724551U (en) | A kind of hydrocarbon fuel injector electromagnet | |
| CN201474815U (en) | Oil injection nozzle needle valve body with transition section on inlet of pressure chamber | |
| CN203035422U (en) | Fuel injection device for internal-combustion engine | |
| CN201025200Y (en) | Pin valve coupling part for oil sprayer | |
| CN202360269U (en) | Needle valve of injection nozzle of diesel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150823 |
|
| EXPY | Termination of patent right or utility model |