CN109488772B - A kind of double sealing structure of injection electromagnetic valve - Google Patents
A kind of double sealing structure of injection electromagnetic valve Download PDFInfo
- Publication number
- CN109488772B CN109488772B CN201811456858.3A CN201811456858A CN109488772B CN 109488772 B CN109488772 B CN 109488772B CN 201811456858 A CN201811456858 A CN 201811456858A CN 109488772 B CN109488772 B CN 109488772B
- Authority
- CN
- China
- Prior art keywords
- compression leg
- elastic sheet
- steel ball
- sealing structure
- briquetting
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
- F16K31/0665—Lift valves with valve member being at least partially ball-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of double sealing structures of injection electromagnetic valve, belong to solenoid valve market.Solve in the prior art that injection electromagnetic valve sealing structure leakage rate is big, briquetting might have inclination to the impact force of steel ball, the problems such as causing friction loss.The double sealing structure includes compression leg (2), steel ball (7), the conical surface (10) and elastic sheet (3)；Compression leg (2) prevents fuel from revealing from leakage opening (6) for fitting closely steel ball (7) and the conical surface (10)；Elastic sheet (3) is ring structure, it is set on the compression leg (2), it is bonded on the outside of elastic sheet (3) with piston bush (9) inner hole hole wall, for being sealed to the fuel leaked in the gap in piston bush (9) between the conical surface (10) and steel ball (7).Structure of the invention is suitable for the sealing of solenoid valve.
Description
Technical field
The invention belongs to solenoid valve technical field of sealing technology, in particular to a kind of double sealing structure of injection electromagnetic valve.
Background technique
Conventional spray valve sealing structure is as shown in Figure 1, mainly by armature tappet 1, compression leg 2, sealing cone 10, steel ball 7, work
Plug sleeve 9, leakage opening 6 form.Its seal feature is: armature tappet 1 under the effect of external force, transmits the force to compression leg 2, to press
Firmly steel ball 7 fit closely the conical surface 10 of itself and piston bush 9 and are sealed, steel ball top and bottom stress balance.
The major defect of above-mentioned sealing structure is: since injection valve is in a working cycles, most of the time is work
Make under static sealing, and this sealing, static sealing leakage rate are larger, especially act on steel ball in very high fluid pressure
When 7 lower surface.And because compression leg 2 might have inclination to the impact force of steel ball 7, cause to rub when falling after the promotion of steel ball 7
It wears mistake.
Summary of the invention
It is analyzed in view of above, the present invention is intended to provide a kind of double sealing structure of injection electromagnetic valve, to solve existing skill
Injection electromagnetic valve sealing structure leakage rate is big in art, and briquetting might have inclination to the impact force of steel ball, causes friction loss etc.
Problem.
The purpose of the present invention is mainly achieved through the following technical solutions:
A kind of double sealing structure of injection electromagnetic valve, including compression leg, steel ball, the conical surface and elastic sheet；
Compression leg prevents fuel from revealing from leakage opening for fitting closely steel ball and the conical surface；
Elastic sheet is ring structure, is set on compression leg, is bonded, is used for piston bush inner hole hole wall on the outside of elastic sheet
The fuel leaked in gap in piston bush between the conical surface and steel ball is sealed.
Further, elastic sheet has downward arc convex and outside is bent downwardly or tilts.
It further, further include briquetting, briquetting is equipped with the arc groove for accommodating arc convex, elastic sheet compression backarc
Shape protrusion and briquetting are in close contact.
Further, briquetting is equipped with a blind hole, and blind hole is for accommodating compression leg lower end.
Further, compression leg is threadedly coupled with briquetting by blind hole.
Further, disk spring is placed in blind hole and washer, the deflection of disk spring are adjusted by the quantity of washer
Section, disk spring and washer are used to fasten the connection of briquetting and compression leg.
Further, blind hole two sides are equipped with groove, and compression leg lower end is equipped with support column, and support column is as the lifting of compression leg is recessed
Sliding in slot.
Further, it is bent downwardly on the outside of elastic sheet, elastic sheet is used to constrain the radial fortune of compression leg, briquetting and steel ball
It is dynamic.
Further, elastic sheet is fixedly connected with compression leg shoulder.
A kind of encapsulating method of the double sealing structure of injection electromagnetic valve, which comprises the following steps:
When S1. sealing, compression leg is moved down by downward external force, and elastic sheet enters piston bush and is bonded with piston bush, pressure
Column continues to move down, until steel ball is fitted closely with the conical surface；
S2. when drainage, compression leg is lifted up, and elastic sheet deviates from piston bush inner hole or between the formation of piston bush inner hole hole wall
Gap, steel ball are jacked up under the action of oil pressure in leakage opening, and drain path fully opens.
Compared with prior art, the present invention has the beneficial effect that:
1) a set of secondary sealing structure is increased, so that injection electromagnetic valve is under static sealing, even if steel ball lower surface acts on
Very big oil pressure, but the secondary sealing structure being made up of elastic sheet is to the gap in piston bush between the conical surface and steel ball
The fuel of middle leakage is sealed, and greatly reduces leakage rate.
2) increased secondary sealing structure is also guiding mechanism simultaneously, and spring thin slice is contacted with the inner surface of piston bush to steel ball
Whereabouts play good guiding role, reduce shock tilt caused by friction loss.
Other features and advantages of the present invention will illustrate in the following description, also, part can become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book and claims.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical appended drawing reference indicates identical component.
The cross-sectional view of Fig. 1 tradition ball sealing injection electromagnetic valve；
1 injection electromagnetic valve double sealing structure schematic diagram of Fig. 2 embodiment；
1 injection electromagnetic valve double sealing structure schematic diagram of Fig. 3 variation；
2 injection electromagnetic valve double sealing structure schematic diagram of Fig. 4 variation；
3 injection electromagnetic valve double sealing structure schematic diagram of Fig. 5 variation.
Appended drawing reference:
1- armature tappet；2- compression leg；21- support column；3- elastic sheet；4- butterfly spring；5- washer；6- leakage opening；7-
Steel ball；8- briquetting；81- groove；9- piston bush；The 10- conical surface；11- pyramidal structure；12- raised line.
Specific embodiment
It is described in further detail below in conjunction with double sealing structure of the specific embodiment to injection electromagnetic valve, these implementations
Example is served only for the purpose for comparing and explaining, the present invention is not limited in these embodiments.
Embodiment 1
A kind of double sealing structure of injection electromagnetic valve, as shown in Fig. 2, including armature tappet 1, compression leg 2, elastic sheet 3, butterfly
Shape spring 4, washer 5, leakage opening 6, steel ball 7, briquetting 8, piston bush 9, the conical surface 10 and pyramidal structure 11.
Compression leg 2, steel ball 7 and the conical surface 10 form main seal structure, and compression leg 2 is hindered for fitting closely steel ball 7 and the conical surface 10
Only fuel is flowed out from leakage opening 6；Elastic sheet 3 is ring-type, is set in 2 lower end of compression leg, 3 outside of elastic sheet in piston bush 9
The fitting of hole hole wall, forms secondary sealing structure, for the combustion to leaking in the gap in piston bush 9 between the conical surface 10 and steel ball 7
Material is sealed.
Increased secondary sealing structure so that injection electromagnetic valve is under static sealing, even if 7 lower surface of steel ball acted on it is very big
Oil pressure, but the secondary sealing structure being made up of elastic sheet 3 is to the gap in piston bush 9 between the conical surface 10 and steel ball 7
The fuel of middle leakage is sealed, and greatly reduces leakage rate.
Elastic sheet 3 has downward arc convex and outside is bent downwardly or tilts.It is clearance fit with compression leg 2.Bullet
Property thin slice 3 be arranged between compression leg 2 and briquetting 8, briquetting 8 be equipped with accommodate arc convex arc groove, elastic sheet 3 be pressurized
The arc groove of rear arc protrusion and briquetting 8 is in close contact.On the one hand arc convex makes elastic sheet 3 in the pressure change being subject to
When have the function of stretching, extension shrink, on the other hand can be in close contact with the arc groove of briquetting 8, make better tightness.Compression leg 2
It can be squeezed according to 9 diameter of bore size of piston bush to elastic sheet 3 with briquetting 8, elastic sheet 3 flexes outward, thus
It is bonded 3 outside of elastic sheet with 9 inner hole hole wall of piston bush, and free sliding, plays the role of sealing.
Briquetting 8 is equipped with a blind internal bore, and blind hole diameter matches with compression leg lower end.2 lower end of compression leg passes through with briquetting 8
Blind hole is threadedly coupled.In order to which the link position to compression leg 2 and briquetting 8 is fixed, butterfly is set in the blind hole of briquetting 8
Spring 4 and washer 5, butterfly spring 4 use of long duration rear it is possible that relaxing, can be by the quantity of washer 5 to butterfly bullet
The deflection of spring 4 is adjusted.
Under non-draining state, external force passes to elastic sheet 3 in 2 upper end of compression leg, through 2 shoulder of compression leg, through under compression leg 2
End pass to briquetting 8 and disk spring 4, butterfly spring transmits the force to briquetting 8, and briquetting 8 passes to steel ball 7 so that steel ball 7 with
The conical surface 10 fits closely；Extruding of the elastic sheet 3 through compression leg 2 and briquetting 8, outside is bonded with 9 inner hole hole wall of piston bush, to fuel
Carry out dual-seal.
Edge is connected with pyramidal structure 11 on piston bush 9, bigger than 9 diameter of bore of piston bush at 11 minimum diameter of pyramidal structure,
Under draining state, compression leg 2 rising make elastic sheet 3 deviate from piston bush 9 on along enter pyramidal structure 11, make elastic sheet 3 with
Piston bush 9 is separated by a distance, and briquetting 2 drives briquetting 8 to rise, and the oil in leakage opening 6 is pushed open steel ball 7 using oil pressure, makes to let out
Oil is smooth.
Increased secondary sealing structure is also guiding mechanism simultaneously, 3 sets of spring thin slice on compression leg 2, outside and piston bush 9
Hole wall fitting, make compression leg 2 and briquetting 8 can not run-off the straight, the arc with briquetting 8 always due to steel ball 7 is jacked up oil pressure
Groove fits, and plays good guiding role to the whereabouts of steel ball 7, reduces friction loss caused by shock tilts.
Variation 1
As shown in figure 3, variation 1 is the improvement carried out on the basis of embodiment 1: being arranged in the blind hole of briquetting 8 recessed
Slot 81；Support column 21 is set in the lower end of compression leg 2, support column 21 can carry out in groove 81 with rising or falling for compression leg 2
It slides up and down；Briquetting 8 may be configured as separate structure, can smoothly enter into the compression leg with support column 21 2 in the blind hole of briquetting 8.Bullet
The inside of property thin slice 3 is connect with 2 shoulder of compression leg, be can be and is bolted or is welded to connect.
Due to above-mentioned improvement, the working principle and embodiment 1 of the present embodiment sealing structure are different.
The course of work of variation 1:
Under non-draining state, compression leg 2 is downwardly applied to pressure, transfers the force to steel ball 7 by briquetting 8, makes steel ball 7
It is in close contact with the conical surface 10, forms a resealing.Compression leg 2 and 8 collective effect of briquetting squeeze elastic sheet 3, make elastic sheet 3
Deformation occurs, extends outwardly, and the outside of elastic sheet 3 is bonded well with 9 hole wall of piston bush, elastic sheet 3 and compression leg 2
The second resealing is formed, the fuel leaked in the gap in piston bush 9 between the conical surface 10 and steel ball 7 is sealed.
When needing draining, compression leg 2 is lifted by upward external force, is lifted moment, and the pressure that elastic sheet 3 is subject to reduces,
To contract, 3 outside of elastic sheet is initially separated with 9 hole wall of piston bush；Elastic sheet 3 is connect with compression leg 2, with compression leg 2
Rise and rises, compression leg 2 is lifted up elastic sheet 3 after certain distance and reverts back to shape before not being pressurized, thoroughly with briquetting 8
Separation, elastic sheet 3 is separated by a distance with 9 hole wall of piston bush at this time, keeps drain path smooth；Elastic sheet 3 and dish-shaped bullet
The restoring force of spring 4 can accelerate lifting for compression leg 2.After elastic sheet 3 and briquetting 8 are completely separated, compression leg 2, which continues up, to be lifted,
Support column 21 is contacted in 81 upper wall of groove, and briquetting 8 is driven to rise, and the fuel in leakage opening 6 with certain oil pressure pushes up steel ball 7
It rises, starts draining.
When compression leg 2 is fallen by downward external force, downward external force passes to briquetting 8 and steel ball 7, dish by disk spring 4
Shape spring 4 has buffer function, to reduce the friction loss that steel ball 7 is generated in the collision of the conical surface 10.Elastic sheet 3 is to briquetting 8
It play the guiding role with steel ball 7, reduces the friction loss generated by inclination.
Variation 2
The double sealing structure of 2 injection electromagnetic valve of variation is as shown in figure 4, include compression leg 2, elastic sheet 3, steel ball 7 and cone
Face 10.
In this variation, compression leg 2, steel ball 7 and the conical surface 10 constitute main seal structure, and compression leg 2 is made steel by downward external force
Ball 7 is fitted closely in the conical surface 10, prevents fuel in leakage opening 6 to outward leakage.
Elastic sheet 3 is the reclinate cirque structure in outside in this variation, and elastic sheet 3 is set on compression leg 2
And it is fixed, such as the modes such as welding；3 outside of elastic sheet is bonded with 9 hole wall of piston bush, forms secondary sealing structure.
When non-draining state, compression leg 2 is downwardly applied to pressure, is in close contact steel ball 7 and the conical surface 10, forms a resealing.
The outside of elastic sheet 3 is bonded well with 9 hole wall of piston bush, and elastic sheet 3 and compression leg 2 form the second resealing, right
The fuel leaked in gap in piston bush 9 between the conical surface 10 and steel ball 7 is sealed.
Edge is connected with pyramidal structure 11 on piston bush 9, bigger than 9 diameter of bore of piston bush at 11 minimum diameter of pyramidal structure,
Under drainage state, compression leg 2 is lifted up, and the rising of compression leg 2 makes elastic sheet 3 deviate from edge on piston bush 9 and enters pyramidal structure 11, bullet
Property the outside of thin slice 3 separated with piston bush 9, the oil in leakage opening 6 utilizes oil pressure to push steel ball 7 open, keeps draining smooth.
Variation 3
The double sealing structure of 3 injection electromagnetic valve of variation is as shown in figure 5, include compression leg 2, elastic sheet 3, steel ball 7, the conical surface
10 and raised line 12.
In this variation, compression leg 2, steel ball 7 and the conical surface 10 constitute main seal structure, and compression leg 2 is made steel by downward external force
Ball 7 is fitted closely in the conical surface 10, prevents fuel in leakage opening 6 to outward leakage.
Secondary sealing structure includes elastic sheet 3 and raised line 12.Elastic sheet 3 is the reclinate circle in outside in this variation
Ring structure, elastic sheet 3 are set on compression leg 2 and are fixed, such as the modes such as welding.On the hole wall of piston bush 9 uniformly
Be equipped with 4-12 root raised line 12.
When non-draining state, compression leg 2 is downwardly applied to pressure, is in close contact steel ball 7 and the conical surface 10, forms a resealing.
The outside of elastic sheet 3 is bonded well with 9 hole wall of piston bush, and elastic sheet 3 and compression leg 2 form the second resealing, right
The fuel leaked in gap in piston bush 9 between the conical surface 10 and steel ball 7 is sealed.
Under drainage state, compression leg 2 is lifted up, elastic sheet 3 by raised line 12 be pressed against in be pressed downward contracting, elastic sheet 3
Outside separated with 9 hole wall of piston bush, keep drain path smooth.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of double sealing structure of injection electromagnetic valve, which is characterized in that the double sealing structure includes compression leg (2), steel ball
(7), the conical surface (10) and elastic sheet (3)；
The compression leg (2) prevents fuel from revealing from leakage opening (6) for fitting closely steel ball (7) and the conical surface (10)；
The elastic sheet (3) is ring structure, is set on the compression leg (2), elastic sheet (3) outside and piston bush (9)
The fitting of inner hole hole wall, it is close for being carried out to the fuel leaked in the gap in piston bush (9) between the conical surface (10) and steel ball (7)
Envelope；
The elastic sheet (3) has downward arc convex and outside is bent downwardly or tilts；
It further include briquetting (8), the briquetting (8) is equipped with the arc groove for accommodating arc convex, elastic sheet (3) compression backarc
Shape protrusion and briquetting (8) are in close contact.
2. the double sealing structure of injection electromagnetic valve according to claim 1, which is characterized in that the briquetting (8) is equipped with
One blind hole, blind hole is for accommodating compression leg (2) lower end.
3. the double sealing structure of injection electromagnetic valve according to claim 2, which is characterized in that the compression leg (2) and briquetting
(8) it is threadedly coupled by blind hole.
4. the double sealing structure of injection electromagnetic valve according to claim 2 or 3, which is characterized in that placed in the blind hole
The deflection of disk spring (4) and washer (5), disk spring (4) is adjusted by the quantity of washer (5), the disk spring
(4) and washer (5) is for fastening the connection of briquetting (8) Yu compression leg (2).
5. the double sealing structure of injection electromagnetic valve according to claim 2, which is characterized in that the blind hole two sides are equipped with recessed
Slot (81), compression leg (2) lower end are equipped with support column (21), and support column (21) is as the lifting of compression leg (2) is in groove (81)
Sliding.
6. the double sealing structure of injection electromagnetic valve according to claim 1, which is characterized in that the elastic sheet (3) is used
Radial motion in constraint compression leg (2), briquetting (8) and steel ball (7).
7. the double sealing structure of injection electromagnetic valve according to claim 1, which is characterized in that the elastic sheet (3) with
Compression leg (2) shoulder is fixedly connected.
8. the encapsulating method of the double sealing structure of injection electromagnetic valve according to claim 1-7, which is characterized in that
The following steps are included:
When S1. sealing, compression leg (2) is moved down by downward external force, elastic sheet (3) enter piston bush (9) and with piston bush (9)
Fitting, compression leg (2) continue to move down, until steel ball (7) are fitted closely with the conical surface (10)；
S2. when drainage, compression leg (2) is lifted up, elastic sheet (3) deviate from piston bush (9) inner hole or with piston bush (9) inner hole hole
Wall forms gap, and steel ball (7) is jacked up under the action of oil pressure in leakage opening (6), and drain path fully opens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456858.3A CN109488772B (en) | 2018-11-30 | 2018-11-30 | A kind of double sealing structure of injection electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456858.3A CN109488772B (en) | 2018-11-30 | 2018-11-30 | A kind of double sealing structure of injection electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109488772A CN109488772A (en) | 2019-03-19 |
| CN109488772B true CN109488772B (en) | 2019-12-03 |
Family
ID=65699007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811456858.3A Active CN109488772B (en) | 2018-11-30 | 2018-11-30 | A kind of double sealing structure of injection electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109488772B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5046701A (en) * | 1989-11-03 | 1991-09-10 | Cts Corporation | Molded ball/seal |
| US5984261A (en) * | 1996-11-20 | 1999-11-16 | Aisin Seiki Kabushiki Kaisha | Flow control valve unit including electric coil actuated rod |
| US6305664B1 (en) * | 1997-10-31 | 2001-10-23 | Borgwarner Inc. | Proportional variable bleed solenoid valve with single adjustment pressure calibration and including poppet valve seal ball |
| WO2009033963A2 (en) * | 2007-09-12 | 2009-03-19 | Robert Bosch Gmbh | Valve arrangement for metering an aqueous urea solution |
| CN101479465A (en) * | 2006-07-07 | 2009-07-08 | 欧陆汽车有限责任公司 | Injection system and method for producing an injection system |
| CN101490405A (en) * | 2006-05-10 | 2009-07-22 | 罗伯特·博世有限公司 | Fuel injector comprising a pressure-compensated control valve |
| CN203257955U (en) * | 2013-05-20 | 2013-10-30 | 扬州大学 | Device for preventing disc-shaped springs from turning over internally due to overload |
-
2018
- 2018-11-30 CN CN201811456858.3A patent/CN109488772B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5046701A (en) * | 1989-11-03 | 1991-09-10 | Cts Corporation | Molded ball/seal |
| US5984261A (en) * | 1996-11-20 | 1999-11-16 | Aisin Seiki Kabushiki Kaisha | Flow control valve unit including electric coil actuated rod |
| US6305664B1 (en) * | 1997-10-31 | 2001-10-23 | Borgwarner Inc. | Proportional variable bleed solenoid valve with single adjustment pressure calibration and including poppet valve seal ball |
| CN101490405A (en) * | 2006-05-10 | 2009-07-22 | 罗伯特·博世有限公司 | Fuel injector comprising a pressure-compensated control valve |
| CN101479465A (en) * | 2006-07-07 | 2009-07-08 | 欧陆汽车有限责任公司 | Injection system and method for producing an injection system |
| WO2009033963A2 (en) * | 2007-09-12 | 2009-03-19 | Robert Bosch Gmbh | Valve arrangement for metering an aqueous urea solution |
| CN203257955U (en) * | 2013-05-20 | 2013-10-30 | 扬州大学 | Device for preventing disc-shaped springs from turning over internally due to overload |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109488772A (en) | 2019-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110131235A (en) | A kind of novel hydraulic support cylinder structure | |
| CN109488772B (en) | A kind of double sealing structure of injection electromagnetic valve | |
| CN201526577U (en) | Fastening mechanism | |
| CN102278495A (en) | spring balance type plug valve | |
| KR101147815B1 (en) | Cylinder Loaded Type Closed Safety Valve | |
| CN202418609U (en) | Guiding and sealing valve for valve seat | |
| CN208132833U (en) | A kind of installation tool of valve rod sealing member | |
| CN207960562U (en) | A kind of packing box preventing eccentric wear and oil leak | |
| CN208237076U (en) | A kind of axis sealing combination device | |
| CN214777823U (en) | Oil pump | |
| CN113216897B (en) | Float collar float shoe for well cementation construction | |
| CN105090607A (en) | High-sealing-performance gate valve | |
| WO2020253218A1 (en) | Connection structure between cylinder head cover and cylinder head | |
| CN208041208U (en) | A kind of sealing structure of ultralow temperature ball valve base and valve body | |
| CN218992456U (en) | Butterfly type butt-clamp double-flap check valve | |
| CN201687976U (en) | Spring balance type plug valve | |
| CN218265862U (en) | Anti-drop steam injection packer | |
| CN202302034U (en) | Internal-pressure self-sealing valve structure | |
| CN113006839B (en) | Large-flow safety valve | |
| CN217519207U (en) | Be applied to reinforcing seal structure of RD type downhole tool | |
| CN218581586U (en) | Plug-in type float collar and float shoe | |
| CN215313461U (en) | Atomizing device | |
| CN220980400U (en) | Check valve with leak protection function | |
| CN208578710U (en) | Spring fixed valve ball opening device | |
| CN217559088U (en) | Three-way conjoined valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20190319 Assignee: Hebei laser electromechanical Co.,Ltd. Assignor: BEIJING INSTITUTE OF TECHNOLOGY Contract record no.: X2022990000674 Denomination of invention: A double-sealing structure of an injection solenoid valve Granted publication date: 20191203 License type: Common License Record date: 20220919 |