CN204083399U - Dual Drive gas spray valve - Google Patents
Dual Drive gas spray valve Download PDFInfo
- Publication number
- CN204083399U CN204083399U CN201420616390.0U CN201420616390U CN204083399U CN 204083399 U CN204083399 U CN 204083399U CN 201420616390 U CN201420616390 U CN 201420616390U CN 204083399 U CN204083399 U CN 204083399U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- spool
- gas spray
- input channel
- 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.)
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- 239000007921 spray Substances 0.000 title claims abstract description 16
- 230000009977 dual effect Effects 0.000 title claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 230000035515 penetration Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
The utility model relates to a kind of gas spray valve, specifically a kind of Dual Drive gas spray valve.Comprise valve body, the spool be arranged in valve body, be fixedly connected on the valve block of spool front end, the valve body in valve block front is provided with suction port, the valve body at valve block rear is provided with air outlet, oil input channel and pressure release passage, described oil input channel is provided with the first switch electromagnetic valve and second switch solenoid valve, described first switch electromagnetic valve is all directly communicated with oil input channel with second switch solenoid valve.This gas spray valve adopts two the independently oil-feed of electromagnetic valve hydraulic drive mechanism and pressure releases, and flow is large, fast response time, and its speed of response breaches the operating frequency of solenoid valve, and rational in infrastructure, can accurate adjustment running parameter.
Description
Technical field
The utility model relates to a kind of gas spray valve, specifically a kind of Dual Drive gas spray valve.
Background technique
Emitted dose and response time are two important parameters weighing gas spray valve quality, because the density of gas is lower, the latus rectum size of the valve needed when injection flow is larger is also larger, but larger aero operating pressure acts on valve, inhibition can be produced, the restriction response time to valve opening and closing campaign.Therefore, adopt the high speed electromagnetic gas spray valve of Electromagnetic Drive generally only can adapt to less traffic requirement and lower gas pressure condition, the high-speed quantitative injection under requiring compared with large discharge and elevated pressures cannot be met.Chinese patent 2010105945644 discloses one " actuating device of electric control valve ", the hydraulic structure of electromagnetic valve is adopted to drive the action of spool, have that driving force is large, the feature of fast response time, can be used for compared with in the internal combustion engine air-exhausting air-entering under large discharge requirement and higher gas pressure condition or gaseous fuel injection system.But this hydraulic pressure installation adopts an electromagnetic valve oil-feed and pressure release, and its speed of response is limited by the operating frequency of solenoid valve, cannot improve further; In addition, owing to driving the spring of spool return to adjust, its running parameter of accurate adjustment is difficult to.
Summary of the invention
The utility model be solve the problem provide that a kind of flow is large, fast response time, rational in infrastructure, can the Dual Drive gas spray valve of accurate adjustment running parameter.
The technological scheme that the utility model adopts for technical solution problem is:
Dual Drive gas spray valve described in the utility model comprises valve body, the spool be arranged in valve body, be fixedly connected on the valve block of spool front end, the valve body in valve block front is provided with suction port, the valve body at valve block rear is provided with air outlet, oil input channel and pressure release passage, described oil input channel is provided with the first switch electromagnetic valve and second switch solenoid valve, described first switch electromagnetic valve is all directly communicated with oil input channel with second switch solenoid valve.
The front end of described valve body has been threaded connection pressure regulating screw, and described pressure regulating screw establishes the hollow screw of penetration hole in being, be provided with spring between the rear end of pressure regulating screw and valve block, and the front end of pressure regulating screw is connected with locking nut.
Valve core case is installed with in the inner chamber of described valve body, the axis place of valve core case is provided with spool mounting hole, described spool slides and is inserted in spool mounting hole, the leading portion of described valve core case is connected with the inner wall sealing of valve body by seal ring, annular space is provided with between the back segment of described valve core case and the inwall of valve body, described annular space is communicated with pressure release passage, and be provided with the relief hole being communicated with annular space and spool mounting hole at the back segment of valve core case, described spool is provided with annular groove.
Owing to have employed said structure, this gas spray valve adopts two the independently oil-feed of electromagnetic valve hydraulic drive mechanism and pressure releases, flow is large, fast response time, and its speed of response breaches the operating frequency of solenoid valve, and rational in infrastructure, can accurate adjustment running parameter.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
As shown in Figure 1, Dual Drive gas spray valve described in the utility model comprises valve body 1, the spool 2 be arranged in valve body 1, be fixedly connected on the valve block 3 of spool 2 front end, the valve body 1 in valve block 3 front is provided with suction port 4,5,6, the valve body 1 at valve block 3 rear is provided with air outlet 20, oil input channel 7 and pressure release passage 8, described oil input channel 7 is provided with the first switch electromagnetic valve 9 and second switch solenoid valve 10, described first switch electromagnetic valve 9 is all directly communicated with oil input channel 7 with second switch solenoid valve 10.
Two the independently electromagnetic switch valve respectively oil-feed of hydraulic control oil and pressure releases, thus control the opening and closing of air valve respectively, making the time being opened to closedown of air valve can control to infinitely small is even zero, and amount of parts is few, compact structure, Stroke Control is accurate, and movement parts weight is little, fast response time.
In work, when needing to open injection valve, the first switch electromagnetic valve 9 is opened, second switch solenoid valve 10 cuts out, hydraulic oil enters valve pocket by P mouth, promotes spool 2 and travels forward, when its pressure and spring force reach balance, spool 2 stop motion, the pressure of hydraulic control oil.
When injection valve closed by needs time, the first switch electromagnetic valve 9 is closed, and second switch solenoid valve 10 is opened, and hydraulic oil flows back to fuel tank by T mouth, and spool 2 is closed under spring force.
By the first switch electromagnetic valve 9 and the respective independence of second switch solenoid valve 10, can control respectively, therefore the opening and closing of injection valve can control respectively, and the time cycle being opened to closedown can accomplish very short.Breach the frequency restriction of single electromagnetism valve actuation.
In addition, the front end of described valve body 1 has been threaded connection pressure regulating screw 11, described pressure regulating screw 11 establishes the hollow screw of penetration hole in being, can link up inside and outside valve body 1, form gas-entered passageway, be provided with spring 12 between the rear end of pressure regulating screw 11 and valve block 3, the front end of pressure regulating screw 11 is connected with locking nut 13.Precession or screw out pressure regulating screw 11, can adjust the pretightening force of spring, just can the stroke of precision control valve.The running parameter of accurate adjustment injection valve.
Valve core case 14 is installed with in the inner chamber of described valve body 1, the axis place of valve core case 14 is provided with spool mounting hole, described spool 2 slides and is inserted in spool mounting hole, the leading portion of described valve core case 14 is connected by the inner wall sealing of seal ring with valve body 1, annular space 15 is provided with between the back segment of described valve core case 14 and the inwall of valve body 1, described annular space 15 is communicated with pressure release passage 8, be provided with the relief hole 16 being communicated with annular space 15 and spool mounting hole at the back segment of valve core case 14, described spool 2 is provided with annular groove 17.
During work, hydraulic oil promotes spool 2 and moves forward, a small amount of oil film around spool 2 is gathered in annular groove 17, along with the movement of spool 2, when annular groove 17 moves to relief hole 16 place, the hydraulic oil in annular groove 17 enters pressure release passage 8 by relief hole 16, annular space 15, finally flows back to fuel tank, hydraulic oil can be avoided like this to alter into valve block 3 chamber, the work of valve block 3 is impacted.
Claims (3)
1. Dual Drive gas spray valve, comprise valve body (1), be arranged on the spool (2) in valve body (1), be fixedly connected on the valve block (3) of spool (2) front end, the valve body (1) in valve block (3) front is provided with suction port (4, 5, 6), the valve body (1) at valve block (3) rear is provided with air outlet (20), oil input channel (7) and pressure release passage (8), it is characterized in that: described oil input channel (7) is provided with the first switch electromagnetic valve (9) and second switch solenoid valve (10), described first switch electromagnetic valve (9) is all directly communicated with oil input channel (7) with second switch solenoid valve (10).
2. Dual Drive gas spray valve according to claim 1, it is characterized in that: the front end of described valve body (1) has been threaded connection pressure regulating screw (11), described pressure regulating screw (11) establishes the hollow screw of penetration hole in being, be provided with spring (12) between the rear end of pressure regulating screw (11) and valve block (3), the front end of pressure regulating screw (11) is connected with locking nut (13).
3. Dual Drive gas spray valve according to claim 1 and 2, it is characterized in that: in the inner chamber of described valve body (1), be installed with valve core case (14), the axis place of valve core case (14) is provided with spool mounting hole, described spool (2) slides and is inserted in spool mounting hole, the leading portion of described valve core case (14) is connected by the inner wall sealing of seal ring with valve body (1), annular space (15) is provided with between the back segment of described valve core case (14) and the inwall of valve body (1), described annular space (15) is communicated with pressure release passage (8), the relief hole (16) being communicated with annular space (15) and spool mounting hole is provided with at the back segment of valve core case (14), described spool (2) is provided with annular groove (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420616390.0U CN204083399U (en) | 2014-10-23 | 2014-10-23 | Dual Drive gas spray valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420616390.0U CN204083399U (en) | 2014-10-23 | 2014-10-23 | Dual Drive gas spray valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083399U true CN204083399U (en) | 2015-01-07 |
Family
ID=52176120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420616390.0U Active CN204083399U (en) | 2014-10-23 | 2014-10-23 | Dual Drive gas spray valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083399U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595530A (en) * | 2015-01-27 | 2015-05-06 | 潍柴西港新能源动力有限公司 | Pressure-regulating device for dual-fuel engine |
| CN104633137A (en) * | 2015-03-02 | 2015-05-20 | 张志平 | Airtightness-improved single-beat gas switch valve |
| CN114623243A (en) * | 2022-03-15 | 2022-06-14 | 一汽解放汽车有限公司 | Injection valve for fuel cell |
-
2014
- 2014-10-23 CN CN201420616390.0U patent/CN204083399U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595530A (en) * | 2015-01-27 | 2015-05-06 | 潍柴西港新能源动力有限公司 | Pressure-regulating device for dual-fuel engine |
| CN104633137A (en) * | 2015-03-02 | 2015-05-20 | 张志平 | Airtightness-improved single-beat gas switch valve |
| CN104633137B (en) * | 2015-03-02 | 2017-03-15 | 济南天易迅达电气科技有限公司 | Improve the gas monolayer switch valve of sealing |
| CN114623243A (en) * | 2022-03-15 | 2022-06-14 | 一汽解放汽车有限公司 | Injection valve for fuel cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |