CN102828803A - Sealing structure for rubber plate of metering nozzle - Google Patents
Sealing structure for rubber plate of metering nozzle Download PDFInfo
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- CN102828803A CN102828803A CN2012103162598A CN201210316259A CN102828803A CN 102828803 A CN102828803 A CN 102828803A CN 2012103162598 A CN2012103162598 A CN 2012103162598A CN 201210316259 A CN201210316259 A CN 201210316259A CN 102828803 A CN102828803 A CN 102828803A
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- nozzle
- nozzle valve
- spool
- valve seat
- offset plate
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Abstract
The invention discloses a sealing structure for a rubber plate of a metering nozzle. The sealing structure comprises a nozzle valve body, a nozzle valve core, a nozzle valve base, spraying liquid inlets, a spraying liquid outlet and a solenoid valve part, wherein an accommodating chamber is arranged on the nozzle valve body; the nozzle valve base is arranged in the accommodating chamber; the nozzle valve core is mounted in the nozzle valve base; the nozzle valve core is connected with an electromagnet of the solenoid valve part; the solenoid valve part is powered-on/off so as to drive the nozzle valve core to move vertically in the nozzle valve base; an elastic sealing rubber plate for completely separating the accommodating chamber from a magnet chamber of an electronic valve part is arranged on the upper part of the nozzle valve core; the spraying liquid inlets are correspondingly arranged on the nozzle valve body and the nozzle valve base; and the spraying liquid outlet is arranged on the nozzle valve base. The sealing structure for the rubber plate of the metering nozzle is low in cost and is convenient to process; the sealing effect is good; and the working is reliable and stable.
Description
Technical field
The present invention relates to a kind of metering pump nozzle, relate in particular to a kind of sealing configuration that is used for the measuring jet of vehicle exhaust processing system.
Background technique
Selective catalytic reduction system operating SCR (Selective Catalyst Reduction) is a processing system to downstream working medium; Its principle is exactly in containing the tail gas of NOx, to spray into ammonia; Urea or other nitrogen-containing compound; Make NOx wherein be reduced into N2 and water, be used at present in the diesel engine vent gas processing procedure.
Selective catalytic reduction system operating SCR must accurately control and spray into ammonia; The straying quatity of urea or other nitrogen-containing compound; So that remove NOx to greatest extent; Therefore metering pump becomes the requisite constituent element of selective catalytic reduction system operating SCR, and nozzle especially metering pump be used to control spray into the ammonia amount vitals.
See also shown in Figure 1; Fig. 1 is the sealed structural representation of the metering pump nozzle of traditional vehicle exhaust processing system, and traditional metering pump nozzle comprises nozzle valve seat 10 and the nozzle spool 11 that is arranged in the nozzle valve seat 10, offers hydrojet import 12 and hydrojet outlet 13 on the said nozzle valve seat 10; One end of said nozzle spool 11 connects the electromagnet of electromagnetic valve components 14; The top seal face of said nozzle valve seat 10 and nozzle spool 11 adopts " O " shape seal ring 15 to seal, and when the solenoid valve outage, nozzle spool 11 is under the effect of spring force; Spool head seat surface and valve seat bottom seat surface are adjacent to sealing, and nozzle is hydrojet not; And when the solenoid valve energising, electromagnetic force overcomes spring force with carrying on the nozzle spool 11, and hydrojet is from hydrojet outlet 13 ejections; Solenoid valve cuts off the power supply again, repeats said process.
But; The top of above-mentioned metering pump nozzle " O " shape ring structure is less reliable in actual use; Because nozzle spool 11 is to move up and down, hydrojet always might get into the magnet chamber, even minute quantity; Just might cause electromagnet to lose efficacy because of hydrojet corrosion, whole system is leaked, the stifled and fault of hydrojet not thereby cause.
Summary of the invention
The object of the present invention is to provide a kind of measuring jet offset plate sealing configuration, it has the characteristics of good sealing effect and reliable and stable work, to solve the problem that measuring jet offset plate sealing configuration exists in the existing technology.
For reaching this purpose, the present invention adopts following technological scheme:
A kind of measuring jet offset plate sealing configuration; It comprises nozzle valve body, nozzle spool, nozzle valve seat, hydrojet inlet/outlet and electromagnetic valve components; Offer holding cavity on the said nozzle valve body, said nozzle valve seat is arranged in the holding cavity, and said nozzle spool is installed in the nozzle valve seat; Said nozzle spool connects the electromagnet of electromagnetic valve components; Said electromagnetic valve components switching electricity drives the nozzle spool and in the nozzle valve seat, moves up and down, and wherein, said nozzle spool top is provided with the elastic packing offset plate that the magnet chamber with holding cavity and electronic valve parts cuts off fully; Correspondingly on said nozzle valve body and the nozzle valve seat offer the hydrojet import, offer the hydrojet outlet on the said nozzle valve seat.
Especially, the center of said sealing offset plate is connected with the electromagnet of electromagnetic valve components with clamping plate through the screw of nozzle spool upper end, and its cylindrical is compressed by the housing of electromagnetic valve components and the pressing plate of nozzle valve body.
Especially; Said nozzle spool comprises forward and backward two sections, and the diameter of the leading portion part of said nozzle spool is less than the back segment part, and the back segment of said nozzle spool partly has one section annular groove; Under hydrojet state not; Cylinder forms the cylinder sealing with the nozzle valve seat respectively before and after the annular groove, and when electromagnetic valve components adhesive spool, annular groove is connected the import and the outlet of hydrojet.
Especially, said nozzle valve seat and nozzle valve body are split-type structural, to make things convenient for the processing of nozzle idol part.
Especially, said nozzle valve body is processed by rustproof aluminum alloy.
Especially, said nozzle valve seat is processed by stainless steel.
Beneficial effect of the present invention is that compared with prior art said measuring jet offset plate sealing configuration has the following advantages:
1) the former round section joint ring part in nozzle top is cut off with the offset plate sealing, about the flexible permission spool of the offset plate freedom, magnet chamber and hydrojet chamber is cut off, and hydrojet does not have possibility and gets into the magnet chamber, thereby guarantees the suction playing function of solenoid valve.
2) nozzle idol part and nozzle valve body are split-type structural, have made things convenient for the processing of nozzle idol part;
3) nozzle idol part and nozzle valve body are split-type structural, make nozzle valve body and nozzle valve seat can adopt material different, and the nozzle valve body adopts rustproof aluminum alloy, and the nozzle valve seat adopts stainless steel, has reduced cost of production to a certain extent.
Description of drawings
Fig. 1 is the sealed structural representation of the metering pump nozzle of traditional vehicle exhaust processing system;
Fig. 2 is the sectional drawing of the measuring jet offset plate sealing configuration that provides of the specific embodiment of the invention 1.
Embodiment
Further specify technological scheme of the present invention below in conjunction with accompanying drawing and through embodiment.
See also shown in Figure 2; In the present embodiment, a kind of measuring jet offset plate sealing configuration comprises nozzle valve body 20, nozzle spool 21, nozzle valve seat 22, hydrojet import 25, hydrojet outlet 26 and electromagnetic valve components 23, offers holding cavity on the said nozzle valve body 20; Said nozzle valve seat 22 is arranged in the holding cavity; Said nozzle spool 21 is installed in the nozzle valve seat 22, and said nozzle valve body 20 is a split-type structural with nozzle valve seat 22, makes nozzle valve body 20 and nozzle valve seat 22 can adopt material different like this; Nozzle valve body 20 adopts rustproof aluminum alloy; Nozzle valve seat 22 adopts stainless steel, has reduced cost of production to a certain extent, and said nozzle spool 21 connects the electromagnet of electromagnetic valve components 23; Said electromagnetic valve components 23 switchings electricity drives nozzle spool 21 and in nozzle valve seat 22, moves up and down; Sealing offset plate 24 is set between said nozzle spool 21 tops and the nozzle valve body 20 cuts off, the center of said sealing offset plate 24 is connected with the electromagnet of clamping plate 29 with electromagnetic valve components 23 through the screw 28 of nozzle spool 21 upper ends, and its cylindrical is compressed by the housing of electromagnetic valve components 23 and the pressing plate 30 of nozzle valve body 20.And about said sealing offset plate 24 flexible permission nozzle spool 21 freedom; Simultaneously magnet chamber and hydrojet chamber are cut off fully; Hydrojet does not have possibility and gets into the magnet chamber; Thereby guarantee the suction playing function of electromagnetic valve components 23, correspondingly on said nozzle valve body 21 and the nozzle valve seat 22 offer hydrojet import 25, offer hydrojet on the said nozzle valve seat 22 and export 26.
Said nozzle spool 21 comprises forward and backward two sections; The diameter of the leading portion part of said nozzle spool 21 is less than the back segment part; The back segment of said nozzle spool 21 partly has one section annular groove 27, and under hydrojet state not, annular groove 27 front and back cylinders form the cylinders sealing with nozzle valve seat 22 respectively; When electromagnetic valve components 23 adhesive spools, import and outlet that annular groove 27 is connected hydrojet.
Not only cost is low for above-mentioned measuring jet offset plate sealing configuration, and good sealing effect, reliable and stable work.
Above embodiment has just set forth basic principle of the present invention and characteristic; The present invention is not limited by above-mentioned example; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various variations and change, and these variations and change all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (6)
1. measuring jet offset plate sealing configuration; It comprises nozzle valve body, nozzle spool, nozzle valve seat, hydrojet inlet/outlet and electromagnetic valve components; Offer holding cavity on the said nozzle valve body, said nozzle valve seat is arranged in the holding cavity, and said nozzle spool is installed in the nozzle valve seat; Said nozzle spool connects the electromagnet of electromagnetic valve components; Said electromagnetic valve components switching electricity drives the nozzle spool and in the nozzle valve seat, moves up and down, and it is characterized in that, said nozzle spool top is provided with the elastic packing offset plate that the magnet chamber with holding cavity and electronic valve parts cuts off fully; Correspondingly on said nozzle valve body and the nozzle valve seat offer the hydrojet import, offer the hydrojet outlet on the said nozzle valve seat.
2. measuring jet offset plate sealing configuration according to claim 1; It is characterized in that; The center of said sealing offset plate is connected with the electromagnet of electromagnetic valve components with clamping plate through the screw of nozzle spool upper end, and its cylindrical is compressed by the housing of electromagnetic valve components and the pressing plate of nozzle valve body.
3. measuring jet offset plate sealing configuration according to claim 1 is characterized in that, said nozzle spool comprises forward and backward two sections; The diameter of the leading portion part of said nozzle spool is less than the back segment part; The back segment of said nozzle spool partly has one section annular groove, and under hydrojet state not, cylinder forms the cylinder sealing with the nozzle valve seat respectively before and after the annular groove; When electromagnetic valve components adhesive spool, annular groove is connected the import and the outlet of hydrojet.
4. measuring jet offset plate sealing configuration according to claim 1 is characterized in that said nozzle valve seat and nozzle valve body are split-type structural.
5. measuring jet offset plate sealing configuration according to claim 4 is characterized in that said nozzle valve body is processed by rustproof aluminum alloy.
6. according to claim 1 or 4 each described measuring jet offset plate sealing configurations, it is characterized in that said nozzle valve seat is processed by stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210316259.8A CN102828803B (en) | 2012-08-30 | 2012-08-30 | A kind of measuring jet offset plate sealing configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210316259.8A CN102828803B (en) | 2012-08-30 | 2012-08-30 | A kind of measuring jet offset plate sealing configuration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102828803A true CN102828803A (en) | 2012-12-19 |
| CN102828803B CN102828803B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210316259.8A Active CN102828803B (en) | 2012-08-30 | 2012-08-30 | A kind of measuring jet offset plate sealing configuration |
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| CN (1) | CN102828803B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075285A (en) * | 2013-02-05 | 2013-05-01 | 李正富 | High pressure common rail fuel metering valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2146616Y (en) * | 1992-12-16 | 1993-11-17 | 乐山市长江仪表厂 | Flow-limiting double-seal auxiliary stopping valve |
| JP2002098024A (en) * | 2000-09-26 | 2002-04-05 | Mitsubishi Heavy Ind Ltd | Electronically controlled fuel injection system |
| CN2498366Y (en) * | 2001-03-03 | 2002-07-03 | 郝立华 | Gas fuel jetting solenoid valve at high frequency impulses |
| US20060283988A1 (en) * | 2005-06-10 | 2006-12-21 | Denso Corporation | Fuel injection valve |
| CN101749159A (en) * | 2010-02-08 | 2010-06-23 | 苏州麦格特发动机有限公司 | Fuel injection electronic unit injector of a diesel engine |
| CN102216601A (en) * | 2008-09-17 | 2011-10-12 | 罗伯特·博世有限公司 | Fuel injection valve |
| CN202745969U (en) * | 2012-08-30 | 2013-02-20 | 无锡市凯龙汽车设备制造有限公司 | Rubber plate sealing structure for metering spray nozzle |
-
2012
- 2012-08-30 CN CN201210316259.8A patent/CN102828803B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2146616Y (en) * | 1992-12-16 | 1993-11-17 | 乐山市长江仪表厂 | Flow-limiting double-seal auxiliary stopping valve |
| JP2002098024A (en) * | 2000-09-26 | 2002-04-05 | Mitsubishi Heavy Ind Ltd | Electronically controlled fuel injection system |
| CN2498366Y (en) * | 2001-03-03 | 2002-07-03 | 郝立华 | Gas fuel jetting solenoid valve at high frequency impulses |
| US20060283988A1 (en) * | 2005-06-10 | 2006-12-21 | Denso Corporation | Fuel injection valve |
| CN102216601A (en) * | 2008-09-17 | 2011-10-12 | 罗伯特·博世有限公司 | Fuel injection valve |
| CN101749159A (en) * | 2010-02-08 | 2010-06-23 | 苏州麦格特发动机有限公司 | Fuel injection electronic unit injector of a diesel engine |
| CN202745969U (en) * | 2012-08-30 | 2013-02-20 | 无锡市凯龙汽车设备制造有限公司 | Rubber plate sealing structure for metering spray nozzle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075285A (en) * | 2013-02-05 | 2013-05-01 | 李正富 | High pressure common rail fuel metering valve |
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| CN102828803B (en) | 2015-09-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 214000 Jiangsu city in Wuxi Province Economic Development Zone Huishan Qianqiao Temple Tangqiao supporting area Applicant after: Kailong High Technology Co., Ltd. Address before: 214000 Jiangsu city in Wuxi Province Economic Development Zone Huishan Qianqiao Temple Tangqiao supporting area Applicant before: Wuxi Kailong Bus Equipment Manufacturing Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: KAILONG AUTOMOBILE EQUIPMENT MANUFACTURING CO., LTD., WUXI CITY TO: KAILONG HIGH TECHNOLOGY CO., LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Rubber plate sealing structure for metering nozzle Effective date of registration: 20210727 Granted publication date: 20150916 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi Xishan branch Pledgor: KAILONG HIGH TECHNOLOGY Co.,Ltd. Registration number: Y2021320010276 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |