CN205350499U - Gas spraying rail's air demand adjusting valve - Google Patents
Gas spraying rail's air demand adjusting valve Download PDFInfo
- Publication number
- CN205350499U CN205350499U CN201620090791.6U CN201620090791U CN205350499U CN 205350499 U CN205350499 U CN 205350499U CN 201620090791 U CN201620090791 U CN 201620090791U CN 205350499 U CN205350499 U CN 205350499U
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- Prior art keywords
- valve
- moving valve
- valve nozzle
- housing
- nozzle
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Abstract
The utility model discloses a gas spraying rail's air demand adjusting valve, including the electromagnetism disk seat, moving valve body has set gradually from inside to outside in the electromagnetism disk seat, a housing, the casing upper end is outside extends, and be provided with inside hollow connecting piece at the casing lower extreme, leave the clearance between connecting piece upper end and the moving valve body lower extreme, extension end screw thread connection at the casing has the valve nozzle, moving valve body is inside to open the air flue that has with connecting piece middle part intercommunication, the spring sets up in the air flue, and open the through -hole that has two to communicate with the air flue on the moving valve body lateral wall, moving valve body upper end and the inside intercommunication of valve nozzle, and it has a plurality of fumaroles to open on the circumference on valve nozzle top. Set up a plurality of fumaroles on the outer circumference at valve nozzle top, gas firm output when adaptable air flue internal combustion tolerance increases or reduces, wherein the extension end screw thread connection of valve nozzle and casing can carry out quick replacement to it, and then avoid the overall change to parts such as case and electromagnetism disk seats when the valve nozzle is impaired, reduces use cost.
Description
Technical field
This utility model relates to gas injection rail, and the air demand specifically referring to gas injection rail adjusts valve.
Background technology
Along with the rapid growth of automobile pollution, environmental pollution and petroleum resources shortage problem are on the rise.For this, the R&D work of new-energy automobile is actively developed in countries in the world.Wherein, gas-fueled vehicles are low with its discharge, suppress greenhouse effect and break away from oil is relied on three big characteristics, are just worldwide popularized and promote.In China, many city bus and taxi have great amount of fuel oil car to use instead or are using compressed natural gas (CNG) or liquefied petroleum gas (LPG) instead.Along with increasing rapidly of China's gas combustion automobile recoverable amount, develop matched combustion heater also imperative.
In the electronic controlled gas injection system of gaseous propellant engine, one of device of most critical is gas ejector, and its performance quality directly affects the jet quality of fuel.But, the structure spraying rail spool in prior art is complicated, and the stability of nozzle flow is not enough, in adjustment process, the adjustment of gas flow is comparatively delayed, and the gas flow change such as ejected by nozzle when strengthening or reduce flow output is slower.
Utility model content
The purpose of this utility model is in that the air demand providing gas injection rail adjusts valve, increases the rate of change of fuel gas supply amount in spray rail and then the purpose of gas flow flexible modulation.
The purpose of this utility model is achieved through the following technical solutions:
The air demand of gas injection rail adjusts valve, including the solenoid valve seat being provided with solenoid on inwall, moving valve it is disposed with from inside to outside in described solenoid valve seat, housing, described housing upper end stretches out, and the connector of inner hollow it is provided with in described housing lower end, gap is left between connector upper end and moving valve lower end, elongated end at housing is threaded valve nozzle, have inside described moving valve and the air flue connected in the middle part of connector, spring is arranged in air flue, and on described moving valve sidewall, have two through holes connected with air flue, moving valve upper end is internal with valve nozzle to be connected, and on the circumference on valve nozzle top, have the straight tube that multiple fumarole also includes the dead in line of axis and valve nozzle, described straight tube is made up of body and connecting tube, described body lower end is connected with the open end at moving valve top, and connecting tube upper end runs through the top of valve nozzle, connecting tube lower end is run through the end face of body and downwardly extends, it is provided with outwardly in connecting tube bottom outer rim and between inboard wall of tube body, forms annular seal space, and in annular seal space, it is marked with the fluid of 1/2 volume；During adjusting gas flow output, by the changes of magnetic field of solenoid, moving valve in the vertical direction is made to do rectilinear motion, to regulate the contact area size of through hole and inner walls.
In prior art, the supply of combustion gas is directly transmitted often through fuel gas pipeline, does not reach the requirement of precise fine-adjustment in the adjustment of air demand so that gas supply cannot practical requirement；During utility model works, for supply normal discharge, moving valve contacts with each other with the corresponding end face of connector, and through hole is blocked by inner walls completely, combustion gas enters in air flue by inside connector, flow in straight tube by the open end at air flue top, eventually pass straight tube upper end and flow out；And when needs increase gas supply amount, by solenoid, the magnetic field around moving valve is changed in solenoid valve seat, make to depart between moving valve and connector, namely moving valve moves up, now, the through hole connected with air flue is internal with valve nozzle gradually to be connected, namely can be passed through in the open end entrance valve nozzle at through hole and moving valve top by the combustion gas of the internal output of connector, the combustion gas input quantity that only need to increase connector place then can increase the combustion gas output that valve nozzle is final, compared with prior art, under the same premise increasing combustion gas input quantity, the output of single gas distribution channel is well below the output of double, two gas distribution channels, and then realize the rate of change of fuel gas supply amount in spray rail, reach the purpose of gas flow flexible modulation.And, the excircle at valve nozzle top arranges multiple fumarole, the combustion gas being suitable in air flue gas quantity when increasing or reduce stably exports, wherein valve nozzle is threadeded with the elongated end of housing, when valve nozzle is impaired, it can be carried out quick-replaceable, and then avoid the integral replacing to the parts such as spool and solenoid valve seat, reduce use cost.
Further, the axis of straight tube and the dead in line of valve nozzle, improve outside combustion gas while the stability of spray, it is ensured that the flow ejection efficiency at valve nozzle place；And straight tube is made up of body and connecting tube, during supply, connecting tube is fixed, and body, when servo-actuated valve body moves together, utilizes the fluid in annular seal space to be fully sealed the coupling part between body and connecting tube, to reach the purpose preventing gas from leakage occurring.
In described gap, cushion pad is installed.For reducing the impact between moving valve and connector end, at gap location, cushion pad is installed, ensure that on the one hand and the vertical direction that moving valve remains stable for moves back and forth, can also will reduce the abrasion of moving valve end face on the other hand, extend the service life of moving valve.
In the junction of described valve nozzle outer wall Yu housing elongated end inwall, O is installed.Due to valve nozzle with housing elongated end for threadeding, for strengthening the connection sealing between valve nozzle and housing further, O is set and can not only realize strengthening the purpose of sealing property, combustion gas can also be cushioned when ejection to the impact dynamics between housing and valve nozzle junction, the stability overall to ensure device.
This utility model compared with prior art, has such advantages as and beneficial effect:
1, this utility model arranges multiple fumarole on the excircle at valve nozzle top, the combustion gas being suitable in air flue gas quantity when increasing or reduce stably exports, wherein valve nozzle is threadeded with the elongated end of housing, when valve nozzle is impaired, it can be carried out quick-replaceable, and then avoid the integral replacing to the parts such as spool and solenoid valve seat, reduce use cost；
2, this utility model is reduce the impact between moving valve and connector end, at gap location, cushion pad is installed, ensure that on the one hand and the vertical direction that moving valve remains stable for moves back and forth, can also will reduce the abrasion of moving valve end face on the other hand, extend the service life of moving valve；
3, this utility model arranges O and can not only realize strengthening the purpose of sealing property, moreover it is possible to cushion combustion gas when ejection to the impact dynamics between housing and valve nozzle junction, the stability overall to ensure device.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the part of the application, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:
Fig. 1 is this utility model structural representation；
Fig. 2 is the enlarged drawing at A place in Fig. 1；
Labelling and corresponding parts title in accompanying drawing:
1-through hole, 2-fumarole, 3-straight tube, 31-fluid, 32-annular seal space, 33-connecting tube, 4-spring, 5-moving valve, 6-housing, 7-air flue, 8-connector, 9-solenoid valve seat, 10-cushion pad, 11-O type circle, 12-valve nozzle.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only used for explaining this utility model, are not intended as restriction of the present utility model.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment includes the solenoid valve seat 9 being provided with solenoid on inwall, moving valve 5 it is disposed with from inside to outside in described solenoid valve seat 9, housing 6, described housing 6 upper end stretches out, and the connector 8 of inner hollow it is provided with in described housing 6 lower end, gap is left between connector 8 upper end and moving valve 5 lower end, elongated end at housing 6 is threaded valve nozzle 12, described moving valve 5 is internal to be had and the air flue 7 connected in the middle part of connector 8, spring 4 is arranged in air flue 7, and on described moving valve 5 sidewall, have two through holes 1 connected with air flue 7, moving valve 5 upper end is internal with valve nozzle 12 to be connected, and on the circumference on valve nozzle 12 top, have multiple fumarole 2, also include the straight tube 3 of axis and the dead in line of valve nozzle 12, described straight tube 3 is made up of body and connecting tube 33, described body lower end is connected with the open end at moving valve 5 top, and connecting tube 33 upper end runs through the top of valve nozzle 12, connecting tube 33 lower end is run through the end face of body and downwardly extends, it is provided with outwardly in connecting tube 33 bottom outer rim and between inboard wall of tube body, forms annular seal space 32, and in annular seal space 32, it is marked with the fluid 31 of 1/2 volume；During adjusting gas flow output, by the changes of magnetic field of solenoid, moving valve 5 in the vertical direction is made to do rectilinear motion, to regulate the contact area size of through hole 1 and housing 6 inwall.
During work, for supply normal discharge, moving valve 5 contacts with each other with the corresponding end face of connector 8, and through hole 1 is blocked by housing 6 inwall completely, combustion gas enters in air flue 7 by connector 8 is internal, flowed in straight tube 12 by the open end at air flue 7 top, eventually pass straight tube 12 end and flow out；And when needs increase gas supply amount, by solenoid, the magnetic field around moving valve 5 is changed in solenoid valve seat 9, make to depart between moving valve 5 and connector 8, namely moving valve 5 moves up, now, the through hole 1 connected with air flue 7 is internal with valve nozzle 12 gradually to be connected, namely can be passed through in the open end entrance valve nozzle 12 at through hole 1 and moving valve 5 top by the combustion gas of the internal output of connector 8, the combustion gas input quantity that only need to increase connector 8 place then can increase the combustion gas output that valve nozzle 12 is final, compared with prior art, under the same premise increasing combustion gas input quantity, the output of single gas distribution channel is well below the output of double, two gas distribution channels, and then realize the rate of change of fuel gas supply amount in spray rail, reach the purpose of gas flow flexible modulation.And, the excircle at valve nozzle 12 top arranges multiple fumarole 2, the combustion gas being suitable in air flue 7 gas quantity when increasing or reduce stably exports, wherein valve nozzle 12 is threadeded with the elongated end of housing 6, when valve nozzle 12 is impaired, it can be carried out quick-replaceable, and then avoid the integral replacing to parts such as spool and solenoid valve seats 9, reduce use cost.Further, the dead in line of the axis of straight tube 3 and valve nozzle 12, while improving the stability sprayed outside combustion gas, it is ensured that the flow ejection efficiency at valve nozzle 12 place；And straight tube 3 is made up of body and connecting tube 33, during supply, connecting tube 33 is fixed, body, when servo-actuated valve body 5 moves together, utilizes the fluid 31 in annular seal space 32 to be fully sealed the coupling part between body and connecting tube 33, to reach the purpose preventing combustion gas from leakage occurring.
Wherein, the present embodiment is reduce the impact between moving valve 5 and connector 8 end, installs cushion pad 10 at gap location, ensure that on the one hand and moves back and forth on the vertical direction that moving valve 5 remains stable for, can also will reduce the abrasion of moving valve 5 end face on the other hand, extend the service life of moving valve 5.Due to valve nozzle 12 with housing 6 elongated end for threadeding, for strengthening the connection sealing between valve nozzle 12 and housing 6 further, O 11 is set and can not only realize strengthening the purpose of sealing property, combustion gas can also be cushioned when ejection to the impact dynamics between housing 6 and valve nozzle 12 junction, the stability overall to ensure device.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only detailed description of the invention of the present utility model; it is not used to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (3)
1. the air demand of gas injection rail adjusts valve, including the solenoid valve seat (9) being provided with solenoid on inwall, it is characterized in that: in described solenoid valve seat (9), be disposed with moving valve (5) from inside to outside, housing (6), described housing (6) upper end stretches out, and the connector (8) of inner hollow it is provided with in described housing (6) lower end, gap is left between connector (8) upper end and moving valve (5) lower end, elongated end at housing (6) is threaded valve nozzle (12), described moving valve (5) is internal has the air flue (7) connected with connector (8) middle part, spring (4) is arranged in air flue, and on described moving valve (5) sidewall, have two through holes (1) connected with air flue (7), moving valve (5) upper end is internal with valve nozzle (12) to be connected, and on the circumference on valve nozzle (12) top, have multiple fumarole (2), also include the straight tube (3) of axis and the dead in line of valve nozzle (12), described straight tube (3) is made up of body and connecting tube (33), described body lower end is connected with the open end at moving valve (5) top, and connecting tube (33) upper end runs through the top of valve nozzle (12), connecting tube (33) lower end is run through the end face of body and downwardly extends, it is provided with outwardly in connecting tube (33) bottom outer rim and between inboard wall of tube body, forms annular seal space (32), and in annular seal space (32), it is marked with the fluid (31) of 1/2 volume；During adjusting gas flow output, by the changes of magnetic field of solenoid, moving valve (5) in the vertical direction is made to do rectilinear motion, to regulate the contact area size of through hole (1) and housing (6) inwall.
2. the air demand of gas injection rail according to claim 1 adjusts valve, it is characterised in that: cushion pad (10) is installed in described gap.
3. the air demand of gas injection rail according to claim 1 adjusts valve, it is characterised in that: in the junction of described valve nozzle (12) outer wall Yu housing (6) elongated end inwall, O (11) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620090791.6U CN205350499U (en) | 2016-01-29 | 2016-01-29 | Gas spraying rail's air demand adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620090791.6U CN205350499U (en) | 2016-01-29 | 2016-01-29 | Gas spraying rail's air demand adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350499U true CN205350499U (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620090791.6U Expired - Fee Related CN205350499U (en) | 2016-01-29 | 2016-01-29 | Gas spraying rail's air demand adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673256A (en) * | 2016-01-29 | 2016-06-15 | 成都杜嘉机电有限公司 | Gas flow adjusting valve |
-
2016
- 2016-01-29 CN CN201620090791.6U patent/CN205350499U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673256A (en) * | 2016-01-29 | 2016-06-15 | 成都杜嘉机电有限公司 | Gas flow adjusting valve |
| CN105673256B (en) * | 2016-01-29 | 2019-01-11 | 成都杜嘉机电有限公司 | Gas flow adjusts valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20170129 |