CN206280580U - It is a kind of to be suitable to the CNG pressure-reducing valves of narrow space - Google Patents
It is a kind of to be suitable to the CNG pressure-reducing valves of narrow space Download PDFInfo
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- CN206280580U CN206280580U CN201621400831.9U CN201621400831U CN206280580U CN 206280580 U CN206280580 U CN 206280580U CN 201621400831 U CN201621400831 U CN 201621400831U CN 206280580 U CN206280580 U CN 206280580U
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- core
- cavity
- pressure
- narrow space
- housing
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Abstract
The utility model offer is a kind of to be suitable to the CNG pressure-reducing valves of narrow space, including pressure-reducing valve, pressure-reducing valve is provided with the one-level relief chamber and second depressurized chamber for interconnecting, second depressurized chamber is provided with gas outlet, one-level relief chamber is provided with fuel gas inlet, the exhaust port of magnetic valve is connected with frost removal, and frost removal is connected with fuel gas inlet, and magnetic valve includes housing, dynamic core, determines core, location nut and intake interface；One end is provided with exhaust port on housing, the housing other end is provided with the cavity of end face opening, cavity top is provided with internal thread, dynamic core is connected with the lower slide of cavity, determines core and is threadedly coupled with cavity, and magnet coil is provided with core is determined, determining to be provided with spring between core and dynamic core, location nut is threadedly coupled with cavity, and is locked mutually with core is determined, and intake interface is threadedly coupled with cavity.By the structure using the above, the part of magnetic valve is reduced, reduce production cost, especially reduce the overall volume of pressure-reducing valve, consequently facilitating pacifying in narrow space.
Description
Technical field
The utility model is related to the valve field of CNG, particularly a kind of to be suitable to the CNG pressure-reducing valves of narrow space.
Background technology
CNG (compressed natural gas) so expects, mixes with air evenly that burning more fully, is discharged as a kind of gas
The harmful substance such as CO, HC it is less；There is no carbon deposit after combustion of natural gas, engine scuffing can be reduced, maintaining expense is low；
Natural gas engine repacking is simple, particularly with the dual fuel engine of gasoline engine refitting, because cost performance is high, using extensive；
Therefore new-energy automobile is adapted to current environmental requirement as fuel using compressed natural gas CNG at present.
With the fast development of gas-fueled vehicles, in the market gas-fueled vehicles recoverable amount increases year by year.And use CNG（Pressure
Contracting natural gas）System also accordingly increase.In CNG gas control systems, pressure-reducing valve belongs to core component, steel cylinder compression
The natural gas CNG gases of 20MPa are implemented gasification and are subtracted before Motor Engine Cylinder burning is entered, it is necessary in pressure-reducing valve
Pressure.
As shown in Figure 6, volume is larger for structure of relief pressure valve of the prior art, to adapt to different vehicles, it is necessary to various
The pressure-reducing valve of shape, only wherein the change of fuel gas inlet position just has four kinds, and combined shaped reaches more than 32 kinds, which increases and adds
The difficulty of work, and processing enterprise quantity in stock, it is difficult to reduce production cost.
Existing gas nozzle valve or magnetic valve, all dynamic core with a cylinder, will install the dynamic core, and obtain preferable
Gas by performance, reduce vapour lock, it is necessary to using complex structure, part is more, and structure is complex, leak wind
Danger increase, processing cost is higher.Usual all volumes are larger, are not easy to install, especially during existing vehicle is transformed not
It is easy to install.
The content of the invention
Technical problem to be solved in the utility model be to provide it is a kind of be suitable to the CNG pressure-reducing valves of narrow space, can subtract
The volume of decompression valve assembly, especially reduces the volume of magnetic valve less, reduces the part of magnetic valve, simplifies structure, preferred square
In case, can ensure ventilation section on the premise of, further reduce armature quality, and then reduce magnet coil volume and
The volume of whole magnetic valve, and improve the response speed of magnetic valve.
In order to solve the above technical problems, the technical scheme that the utility model is used is：It is a kind of to be suitable to the CNG of narrow space
Pressure-reducing valve, including pressure-reducing valve, pressure-reducing valve are provided with the one-level relief chamber and second depressurized chamber for interconnecting, and second depressurized chamber is provided with combustion
Gas is exported, and one-level relief chamber is provided with fuel gas inlet, and the exhaust port of magnetic valve is connected with frost removal, and frost removal connects with fuel gas inlet
Connect, magnetic valve includes housing, dynamic core, determines core, location nut and intake interface；
One end is provided with exhaust port on housing, and the housing other end is provided with the cavity of end face opening, and cavity top is provided with interior
Screw thread, dynamic core is connected with the lower slide of cavity, determines core and is threadedly coupled with cavity, and magnet coil is provided with core is determined, determine core and
Spring is provided between dynamic core, location nut is threadedly coupled with cavity, and is locked mutually with core is determined, intake interface connects with cavity screw thread
Connect.
In preferred scheme, in described dynamic core, the outer wall of solid part is provided with multiple fins, is provided with recessed at the top of solid part
The portion of falling into, the top of multiple fins is fixedly connected with armature plate, and the centre of armature plate is provided with through hole.
In preferred scheme, described fin is uniformly distributed along the circumference into radial, and the height of fin top is higher than solid part top
The height in portion.
In preferred scheme, one end of spring is located in depressed part.
In preferred scheme, sealing ring is provided with the bottom of solid part；
Or it is provided with sealing ring in the position that housing is contacted with solid part；
Or lug boss is provided with the bottom of solid part, and sealing ring is provided with lug boss, it is provided with recessed in housing relevant position
The portion of falling into.
In preferred scheme, the quantity of fin is 3 ~ 24, the outer rim of fin and the inwall sliding contact of shell cavity.
In preferred scheme, the through hole that powered magnet coils lead is passed through is provided with housing wall, and with adhesive seal；
Or the wire casing that powered magnet coils lead is passed through is provided with the inwall of shell cavity, and with adhesive seal.
In preferred scheme, it is provided with for fixed screw thread, convex wedge or bayonet socket in the outer wall of housing.
In preferred scheme, one-level relief chamber is provided with the pressure regulating mechanism of interior regulation；Second depressurized chamber is provided with outer regulation
Pressure regulating mechanism.
In preferred scheme, the side wall of intake interface is connected with pressure sensor.
Lookup is carefully compared through inventor, pressure-reducing valve of the prior art is, it is necessary to the reason for configuring different structure is
Volume is larger, and especially the volume of magnetic valve is larger, during the improvement and installation of existing vehicle, easily with enging cabin in
Miscellaneous part is interfered, so as to need to configure the pressure-reducing valve of various shapes structure, magnetic valve towards different directions, to adapt to not
Same vehicle, by reducing the volume of magnetic valve, can avoid the interference of major part, by measuring and calculating, it is only necessary to be tied in preparing 8 ~ 16
Structure can meet the demand of existing vehicle, reduce stock, improve single product yield.
The a kind of of the utility model offer is suitable to the CNG pressure-reducing valves of narrow space, by the structure using the above, reduces
The part of magnetic valve, reduces production cost, the overall volume of pressure-reducing valve is especially reduced, consequently facilitating in narrow space
Install, the structure after improvement, it is only necessary to configure 8 ~ 16 kinds of structures, you can meet the use requirement of different automobile types, significantly reduce storehouse
Rate is deposited, the yield of single product is improved, production cost is reduced.By improving the structure of dynamic core, dynamic core is reduce further
Diameter and height, reduce the quality of dynamic core, so as to reduce the volume of whole magnetic valve, reduce further cost.This reality
With the new position that can be used in gas nozzle, it is also possible in the position of pressure-reducing valve.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is overall structure schematic front view of the present utility model.
Fig. 2 is the main structure diagram of magnetic valve in the utility model.
Fig. 3 is the top view of dynamic core in the utility model.
Fig. 4 is the upward view of dynamic core in the utility model.
Fig. 5 is the A-A schematic cross-sectional views of Fig. 2.
Fig. 6 is the structural representation of pressure-reducing valve in the prior art.
In figure：Magnetic valve 1, the magnetic valve 1' of prior art, sealing ring 2 moves core 3, depressed part 31, solid part 32, fin
33, armature plate 34 determines core 4, location nut 5, intake interface 6, air inlet 61, pressure sensor 62, spring 7, exhaust port 8,
Magnet coil 9, frost removal 10, one-level relief chamber 11, second depressurized chamber 12, gas outlet 13.
Specific embodiment
As in Fig. 1 ~ 5, a kind of to be suitable to the CNG pressure-reducing valves of narrow space, including pressure-reducing valve, pressure-reducing valve is provided with what is interconnected
One-level relief chamber 11 and second depressurized chamber 12, second depressurized chamber 12 are provided with gas outlet 13, and one-level relief chamber 11 is provided with combustion gas and enters
Mouthful, the exhaust port 8 of magnetic valve 1 is connected with frost removal 10, and frost removal 10 is connected with fuel gas inlet, and magnetic valve 1 includes housing, moves
Core 3, determine core 4, location nut 5 and intake interface 6；
One end is provided with exhaust port 8 on housing, and the housing other end is provided with the cavity of end face opening, and cavity top is provided with interior
Screw thread, dynamic core 3 is connected with the lower slide of cavity, determines core 4 and is threadedly coupled with cavity, and magnet coil 9 is provided with core 4 is determined, fixed
Spring 7 is provided between core 4 and dynamic core 3, location nut 5 is threadedly coupled with cavity, and with determine core 4 mutually lock, intake interface 6 with
Cavity is threadedly coupled.Thus structure, simplifies the structure of the housing of magnetic valve 1, and each part is easy to processing.Tentatively reduce electricity
The volume of magnet valve.
In preferred scheme such as Fig. 2 ~ 5, in described dynamic core 3, the outer wall of solid part 32 is provided with multiple fins 33, solid part
32 top is provided with depressed part 31, and the top of multiple fins 33 is fixedly connected with armature plate 34, and the centre of armature plate 34 is provided with logical
Hole.In preferred scheme, 33 one-tenth described of fin is radial to be uniformly distributed along the circumference, and the height at the top of fin 33 is pushed up higher than solid part 32
The height in portion.In preferred scheme, one end of spring 7 is located in depressed part 31.Thus structure, with less diameter, you can carry
For enough ventilation sections, through the tubular structure in measuring and calculating compared to existing technology, diameter more than 1/4 is reduced.Depressed part 31 except
For accommodating outside spring 7, the passage of ventilation is also formed.In further preferred scheme, in preferred scheme, the quantity of fin 33
It is 3 ~ 24, four fins 33, the outer rim of fin 33 and the inwall sliding contact of shell cavity is used in this example.The structure is obtained
Good guide effect, guide and limit is provided by the outer rim of fin 33, advantageously reduces the height of whole dynamic core 3, is also beneficial to drop
Low sliding-frictional resistance, compared to existing technology in tubular structure, can highly reduce more than 2/3, you can meet be oriented to effect
Really.Structure more than, under identical ventilation section, significantly reduces the volume of dynamic core 3, reduces the quality of dynamic core 3, phase
Determine core 4, spring with answering and the volume of magnet coil 9 also significantly reduces.Thus the volume of whole magnetic valve also significantly reduces.
In preferred scheme, sealing ring 2 is provided with the bottom of solid part 32；The structure advantageously reduces difficulty of processing.But
It is the increase in the quality of whole dynamic core 3.
Or it is provided with sealing ring 2 in the position that housing is contacted with solid part；The specially bottom position of shell cavity, referring to
Fig. 1；Not shown in figure, this structure is conducive to further reducing the quality of dynamic core 3 to the sealing ring of the structure.
Or lug boss is provided with the bottom of solid part 32, and sealing ring 2 is provided with lug boss, it is provided with housing relevant position
Depressed part.As shown in fig. 1, it is provided with depressed part in the relevant position of housing 1.The structure be conducive to improve sealing effectiveness, but meeting
It is slightly increased movement travel.Arrow in Fig. 4,5, represents the flow direction of fuel gas flow.
In preferred scheme, the through hole that the lead of powered magnet coils 9 is passed through is provided with housing wall, and with adhesive seal；
Not shown in figure, the structure is easy to processing, but assembling is slightly bothered.Preferably, adhesive selects epoxy resin or modified phenol
Urea formaldehyde.
In preferred scheme, the wire casing that the lead of powered magnet coils 9 is passed through is provided with the inwall of the cavity of housing 1, and to bond
Agent is sealed.Not shown in figure, structure processing is more bothered, but assembling is relatively easy to.The processing mode of above two lead,
Compared to the external scheme of coil of the prior art, the quantity of part is further reduced, reduce screw connection structure, due to
The built-in structure of magnet coil 9, magnetic force conversion efficiency is improved, and also further reduces the volume of magnet coil 9.
In preferred scheme, it is provided with for fixed screw thread, convex wedge or bayonet socket in the outer wall of housing 1.Thus structure, just
In the installation of whole magnetic valve.Not shown in figure.
The above embodiments are only optimal technical scheme of the present utility model, and are not construed as limit of the present utility model
System, the technical scheme that protection domain of the present utility model should be recorded with claim, including the technical scheme that claim is recorded
The equivalents of middle technical characteristic are protection domain.Equivalent i.e. within this range is improved, also in the utility model
Protection domain within.
Claims (10)
1. a kind of to be suitable to the CNG pressure-reducing valves of narrow space, including pressure-reducing valve, pressure-reducing valve is provided with the one-level relief chamber for interconnecting
（11）With second depressurized chamber（12）, second depressurized chamber（12）It is provided with gas outlet（13）, one-level relief chamber（11）Combustion gas is provided with to enter
Mouthful, magnetic valve（1）Exhaust port（8）With frost removal（10）Connection, frost removal（10）It is connected with fuel gas inlet, it is characterized in that：
Magnetic valve（1）Including housing, dynamic core（3）, determine core（4）, location nut（5）And intake interface（6）；
One end is provided with exhaust port on housing（8）, the housing other end be provided with end face opening cavity, cavity top is provided with interior spiral shell
Line, moves core（3）It is connected with the lower slide of cavity, determines core（4）It is threadedly coupled with cavity, is determining core（4）It is provided with magnet coil
（9）, determining core（4）With dynamic core（3）Between be provided with spring（7）, location nut（5）Be threadedly coupled with cavity, and with determine core（4）Mutually
Mutually lock, intake interface（6）It is threadedly coupled with cavity.
2. it is according to claim 1 it is a kind of be suitable to the CNG pressure-reducing valves of narrow space, it is characterized in that：Described dynamic core（3）
In, solid part（32）Outer wall be provided with multiple fins（33）, solid part（32）Top be provided with depressed part（31）, multiple fins
（33）Top and armature plate（34）It is fixedly connected, armature plate（34）Centre be provided with through hole.
3. it is according to claim 2 it is a kind of be suitable to the CNG pressure-reducing valves of narrow space, it is characterized in that：Described fin（33）
It is uniformly distributed along the circumference into radial, fin（33）The height at top is higher than solid part（32）The height at top.
4. it is according to claim 2 it is a kind of be suitable to the CNG pressure-reducing valves of narrow space, it is characterized in that：Spring（7）One end position
In depressed part（31）It is interior.
5. it is according to claim 2 it is a kind of be suitable to the CNG pressure-reducing valves of narrow space, it is characterized in that：In solid part（32）'s
Bottom is provided with sealing ring（2）；
Or it is provided with sealing ring in the position that housing is contacted with solid part（2）；
Or in solid part（32）Bottom be provided with lug boss, be provided with sealing ring in lug boss（2）, it is provided with housing relevant position
Depressed part.
6. it is according to claim 2 it is a kind of be suitable to the CNG pressure-reducing valves of narrow space, it is characterized in that：Fin（33）Quantity
It is 3 ~ 24, fin（33）Outer rim and shell cavity inwall sliding contact.
7. it is according to claim 1 it is a kind of be suitable to the CNG pressure-reducing valves of narrow space, it is characterized in that：It is provided with housing wall
Powered magnet coils（9）The through hole that lead is passed through, and with adhesive seal；
Or it is provided with powered magnet coils in the inwall of shell cavity（9）The wire casing that lead is passed through, and with adhesive seal.
8. it is according to claim 1 it is a kind of be suitable to the CNG pressure-reducing valves of narrow space, it is characterized in that：Set in the outer wall of housing
Have for fixed screw thread, convex wedge or bayonet socket.
9. it is according to claim 1 it is a kind of be suitable to the CNG pressure-reducing valves of narrow space, it is characterized in that：One-level relief chamber（11）
It is provided with the pressure regulating mechanism of interior regulation；Second depressurized chamber（12）It is provided with the pressure regulating mechanism of outer regulation.
10. it is according to claim 1 it is a kind of be suitable to the CNG pressure-reducing valves of narrow space, it is characterized in that：Intake interface（6）'s
Side wall and pressure sensor（62）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621400831.9U CN206280580U (en) | 2016-12-20 | 2016-12-20 | It is a kind of to be suitable to the CNG pressure-reducing valves of narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621400831.9U CN206280580U (en) | 2016-12-20 | 2016-12-20 | It is a kind of to be suitable to the CNG pressure-reducing valves of narrow space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280580U true CN206280580U (en) | 2017-06-27 |
Family
ID=59072817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621400831.9U Expired - Fee Related CN206280580U (en) | 2016-12-20 | 2016-12-20 | It is a kind of to be suitable to the CNG pressure-reducing valves of narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094279A (en) * | 2019-04-23 | 2019-08-06 | 武汉洪斯德汽车有限公司 | Can accurate flow adjustment pressure reducing valve |
-
2016
- 2016-12-20 CN CN201621400831.9U patent/CN206280580U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094279A (en) * | 2019-04-23 | 2019-08-06 | 武汉洪斯德汽车有限公司 | Can accurate flow adjustment pressure reducing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170627 Termination date: 20171220 |