CN201092904Y - Seal structure for valve seat and armature iron of compressed natural gas injector - Google Patents
Seal structure for valve seat and armature iron of compressed natural gas injector Download PDFInfo
- Publication number
- CN201092904Y CN201092904Y CNU2007201900281U CN200720190028U CN201092904Y CN 201092904 Y CN201092904 Y CN 201092904Y CN U2007201900281 U CNU2007201900281 U CN U2007201900281U CN 200720190028 U CN200720190028 U CN 200720190028U CN 201092904 Y CN201092904 Y CN 201092904Y
- Authority
- CN
- China
- Prior art keywords
- valve seat
- armature
- end surface
- natural gas
- compressed natural
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Magnetically Actuated Valves (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a sealed structure between a valve seat and an armature of a compressed natural gas ejector, which comprises the valve seat and the armature, wherein the upper end surface of the valve seat is opposite to the lower end surface of the armature, a rubber packing pad is vulcanized on the upper end surface of the valve seat, the rubber packing pad is composed of a ring plate bottom whose cross section is rectangular shape, a ring-shaped top whose cross section is a semi-circle shape and four reinforced ribs which are distributed along the circumferential direction in a cruciform shape and connect the ring plate bottom and the ring-shaped top. Air currents blow or press to the rubber packing pad when the sealed structure works, the rubber packing pad can not be blow away, the sealed structure is firm, and the service life is long.
Description
Technical field
The fuel that the utility model belongs to the compressed natural gas gas engine is the supplier field at regular time and quantity, refers to a kind of valve seat of compressed natural gas injector and the sealing configuration of armature residual gap especially.
Background technique
Utilizing rock gas to replace oil to act as a fuel, is the desirable feasible method of improving energy resource structure, reducing pollution and save cost.Sparger is the vitals of motor, and its effect is with gaseous fuel supply engine at regular time and quantity.Present existing compressed natural gas injector (as shown in Figure 3) comprising: injector body 1, valve seat 2, armature 3, spring 4, coil 5, coil case 6, buting iron 7 and electric connector 8; Injector body 1 and buting iron 7 insert the endoporus of coil 5, and coil case 6 is enclosed within the outside of coil 5, close up and make four to become one in roller limit, coil case 6 two ends; Be provided with valve seat 2, armature 3 and spring 4 in the injector body 1 from bottom to top successively, valve seat 2 and injector body 1 are spirally connected, and armature 3 can move up and down in injector body 1, and spring 4 heads on armature 3 abuts against together the upper-end surface of its lower end surface and valve seat 2; The armature 3 lower end surfaces sulfuration of this sparger has rubber gasket 13, rubber gasket 13 seals between valve seat 2 and armature 3, buting iron 7 is provided with axial hole 12, armature 3 upper ends are provided with axial blind hole 9, armature 3 lower ends are provided with the sidewise hole 10 that is connected with axial blind hole 9, and valve seat 2 is provided with axial hole 11.During compressed natural gas injector work, upper end air inlet from the axial hole 12 of buting iron 7, coil 5 energisings, produce electromagnetic attraction, armature 3 overcomes spring force and moves upward, and makes armature 3 and valve seat 2 leave a slit, blast tube is opened, gas passes through from the slit, and the axial hole 11 lower ends ejection from valve seat 2 realizes air feed.Above-mentioned rubber gasket 13 air-flow when work is easier to it is blown open, and working life is short, influences sealing effect.
The model utility content
The purpose of this utility model provides the valve seat of compressed natural gas injector of a kind of long service life, good sealing effect and the sealing configuration of armature residual gap.
For achieving the above object, the utility model is taked following design proposal:
A kind of valve seat of compressed natural gas injector and the sealing configuration of armature residual gap, it comprises: valve seat and armature, the upper-end surface of valve seat is relative with the lower end surface of armature, it is characterized in that, and the sulfuration of valve seat upper-end surface has rubber gasket.
Rubber gasket by the cross section be ring plate bottom, the cross section of rectangle be semicircular circular top with is connected ring plate bottom and four stiffening ribs that along the circumferential direction are cross distribution of circular top form.
The utility model has the advantages that:
The valve seat of the utility model compressed natural gas injector and the sealing configuration of armature residual gap, because the sulfuration of the upper-end surface of valve seat has rubber gasket, during coil blackout, armature is under the effect of spring force, and its lower end surface abuts against with rubber gasket, better tightness, and absorbing, and when work air-flow blow to and press to rubber gasket in other words, rubber gasket can not blown open by gas, sealing configuration is firm, long service life.
Description of drawings
Fig. 1 is the compressed natural gas injector structural representation with the utility model structure
Fig. 2 is a valve seat plan structure schematic representation in the utility model
Fig. 3 is existing compressed natural gas injector structural representation
Embodiment
As shown in Figure 1 and Figure 2, the valve seat of a kind of compressed natural gas injector of the utility model and the sealing configuration of armature residual gap, it comprises: valve seat 2 and armature 3, the upper-end surface of valve seat 2 is relative with the lower end surface of armature 3, it is characterized in that the sulfuration of valve seat 2 upper-end surfaces has rubber gasket 14.
Use the compressed natural gas injector (as shown in Figure 1) of the utility model structure, comprising: injector body 1, valve seat 2, armature 3, spring 4, coil 5, coil case 6, buting iron 7 and electric connector 8; Injector body 1 and buting iron 7 insert the endoporus of coil 5, and coil case 6 is enclosed within the outside of coil 5, close up and make four to become one in roller limit, coil case 6 two ends; Be provided with valve seat 2, armature 3 and spring 4 in the injector body 1 from bottom to top successively, valve seat 2 and injector body 1 are spirally connected, and armature 3 can move up and down in injector body 1, and spring 4 heads on armature 3 abuts against together the upper-end surface of its lower end surface and valve seat 2; The upper-end surface of valve seat 2 is relative with the lower end surface of armature 3, the sulfuration of valve seat 2 upper-end surfaces has rubber gasket 14, rubber gasket 14 by the cross section be ring plate bottom 15, the cross section of rectangle be semicircular circular top 16 with is connected ring plate bottom 15 and four stiffening ribs 17 that along the circumferential direction are cross distribution of circular top 16 form, buting iron 7 is provided with axial hole 12, armature 3 upper ends are provided with axial blind hole 9, armature 3 lower ends are provided with the sidewise hole 10 that is connected with axial blind hole 9, and valve seat 2 is provided with axial hole 11.
During compressed natural gas injector work, upper end air inlet from the axial hole 12 of buting iron 7, coil 5 energisings, produce electromagnetic attraction, armature 3 overcomes spring force and moves upward, and makes armature 3 and valve seat 2 leave a slit, blast tube is opened, gas passes through from the slit, and the axial hole 11 lower ends ejection from valve seat 2 realizes air feed.
When sparger is not worked, coil 5 outages, armature 3 abuts against on its underpart valve seat 2 under the effect of spring force, closes blast tube, stops air feed.
Claims (2)
1. the sealing configuration of the valve seat of a compressed natural gas injector and armature residual gap, it comprises: valve seat (2) and armature (3), the upper-end surface of valve seat (2) is relative with the lower end surface of armature (3), it is characterized in that, the sulfuration of valve seat (2) upper-end surface has rubber gasket (14).
2. the valve seat of compressed natural gas injector according to claim 1 and the sealing configuration of armature residual gap, it is characterized in that rubber gasket (14) is that ring plate bottom (15), the cross section of rectangle is semicircular circular top (16) and is connected bottom the ring plate four stiffening ribs (17) that along the circumferential direction are cross distribution of (15) and circular top (16) and forms by the cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201900281U CN201092904Y (en) | 2007-11-06 | 2007-11-06 | Seal structure for valve seat and armature iron of compressed natural gas injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201900281U CN201092904Y (en) | 2007-11-06 | 2007-11-06 | Seal structure for valve seat and armature iron of compressed natural gas injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092904Y true CN201092904Y (en) | 2008-07-30 |
Family
ID=39900870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201900281U Expired - Lifetime CN201092904Y (en) | 2007-11-06 | 2007-11-06 | Seal structure for valve seat and armature iron of compressed natural gas injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092904Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493895A (en) * | 2011-12-27 | 2012-06-13 | 北京爱尼机电有限公司 | Compressed natural gas ejector |
| CN103161611A (en) * | 2011-12-09 | 2013-06-19 | 现代自动车株式会社 | Independent fuel injection system of cng engine |
| CN106884740A (en) * | 2015-12-15 | 2017-06-23 | 罗伯特·博世有限公司 | Gas ejector with nonelastic body formula seal receptacle |
| CN113756996A (en) * | 2021-09-15 | 2021-12-07 | 深圳科维新技术有限公司 | Elastic sealing valve seat structure of gas metering injection valve |
| CN115234407A (en) * | 2022-07-22 | 2022-10-25 | 一汽解放汽车有限公司 | Stop valve and gas injector |
| CN115355114A (en) * | 2022-09-06 | 2022-11-18 | 一汽解放汽车有限公司 | Gas injector and automobile |
-
2007
- 2007-11-06 CN CNU2007201900281U patent/CN201092904Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161611A (en) * | 2011-12-09 | 2013-06-19 | 现代自动车株式会社 | Independent fuel injection system of cng engine |
| CN102493895A (en) * | 2011-12-27 | 2012-06-13 | 北京爱尼机电有限公司 | Compressed natural gas ejector |
| CN106884740A (en) * | 2015-12-15 | 2017-06-23 | 罗伯特·博世有限公司 | Gas ejector with nonelastic body formula seal receptacle |
| CN106884740B (en) * | 2015-12-15 | 2021-05-14 | 罗伯特·博世有限公司 | Gas injector with an inelastic sealing seat |
| CN113756996A (en) * | 2021-09-15 | 2021-12-07 | 深圳科维新技术有限公司 | Elastic sealing valve seat structure of gas metering injection valve |
| CN113756996B (en) * | 2021-09-15 | 2022-12-20 | 深圳科维新技术有限公司 | Elastic sealing valve seat structure of gas metering injection valve |
| CN115234407A (en) * | 2022-07-22 | 2022-10-25 | 一汽解放汽车有限公司 | Stop valve and gas injector |
| CN115234407B (en) * | 2022-07-22 | 2024-04-09 | 一汽解放汽车有限公司 | Stop valve and gas injector |
| CN115355114A (en) * | 2022-09-06 | 2022-11-18 | 一汽解放汽车有限公司 | Gas injector and automobile |
| CN115355114B (en) * | 2022-09-06 | 2023-10-20 | 一汽解放汽车有限公司 | Gas injector and motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080730 |