CN109469736A - A kind of torque motor EGR dish valve - Google Patents
A kind of torque motor EGR dish valve Download PDFInfo
- Publication number
- CN109469736A CN109469736A CN201910005745.XA CN201910005745A CN109469736A CN 109469736 A CN109469736 A CN 109469736A CN 201910005745 A CN201910005745 A CN 201910005745A CN 109469736 A CN109469736 A CN 109469736A
- Authority
- CN
- China
- Prior art keywords
- valve body
- terminal pad
- torque motor
- egr
- valve
- 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.)
- Pending
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Classifications
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- 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
- F16K1/16—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 pivoted closure-members
- F16K1/18—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 pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly 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
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
Abstract
The invention discloses a kind of torque motor EGR dish valves, including lower valve body, upper valve body, the motor mount being installed at the top of upper valve body and the torque motor on motor mount；Upper valve body and lower valve body are tightly connected, and are movably set with central axis in upper valve body and lower valve body；Upper terminal pad, lower terminal pad, torsionspring and lip seal circle are equipped in upper valve body, the top of upper terminal pad is welded on the output shaft of torque motor, lower terminal pad is welded on the top of central axis, and the side outer end of upper terminal pad is connected on the side outer end of lower terminal pad；On center shaft, the top of torsionspring is fixed in lower terminal pad for torsionspring and lip seal snare, and the bottom end of torsionspring is fixed on the inner wall of upper valve body；Valve block is provided in lower valve body, valve block is fixed on center shaft.EGR dish valve of the present invention has high life, high reliability, using torque motor as power source, directly drives terminal pad movement, and then drive central axis movement, driving valve block opening and closing.
Description
Technical field
The present invention relates to engine exhaust-gas recirculating system control device technical fields, and in particular to a kind of introduction car tail
Gas participates in the torque motor EGR dish valve to burn again.
Background technique
Gas recirculation system (Exhaust Gas Recirculation) abbreviation EGR is to produce diesel engine or gasoline engine
The sub-fraction of raw exhaust gas sends cylinder back to again.EGR gas is due to will retarded combustion process with inertia, that is to say, that
Burning velocity will slow down to be slowed down so as to cause the pressure initiation process in combustion chamber, here it is oxynitrides can reduction master
Want reason.Total exhaust gas flow (mass flow) can be made to reduce in addition, improving ER EGR Rate, therefore total in exhaust gas discharge
Pollutant output quantity opposite will reduce.
Appropriate engine combustion exhaust gas can be reintroduced back to air inlet pipe by electric EGR valve, be entered after mixing with fresh air
Cylinder carries out second-time burning, so that gas in-cylinder combustion temperature is reduced, it is general to install to reduce NOx generation and discharge amount
Between exhaust manifold and inlet manifold.It is more and more frequent to the use of EGR valve with the upgrading of six discharge course of state, and
It regard it as key monitoring object, it is monitored with ECU, once breaking down, just will appear ECU alarm, and meeting
Limit turns round speed limit, leads to the reduction of client's user satisfaction, and also carried out high request to the service life of EGR valve, especially medium and heavy
Engine in national legislation, especially proposes requirement to the EGR valve service life, before brush motor used in mainstream EGR valve, no
Use can be met again.
Summary of the invention
A kind of torque motor EGR dish valve is provided the technical problem to be solved by the present invention is to overcome the deficiencies in the prior art,
Using torque motor as driving, it is designed to the EGR valve of high life, high reliability.
In order to solve the above technical problems, the technical solution used in the present invention is:
A kind of torque motor EGR dish valve, including lower valve body, upper valve body, the motor mount being installed at the top of upper valve body and peace
Torque motor on motor mount；The upper valve body and lower valve body are tightly connected, and activity is set in upper valve body and lower valve body
It is equipped with central axis；Terminal pad, lower terminal pad, torsionspring and lip seal circle, and upper company are provided in the upper valve body
The top for connecing disk is welded on the output shaft of torque motor, and lower terminal pad is welded on the top of central axis, the side of upper terminal pad
Outer end is connected on the side outer end of lower terminal pad；Torsionspring and lip seal snare on center shaft, the top of torsionspring
End is fixed in lower terminal pad, and the bottom end of torsionspring is fixed on the inner wall of upper valve body；It is provided with valve block in the lower valve body,
And valve block is fixed on center shaft.
Further, the side outer end of the upper terminal pad is installed with the clamping joint extended downwardly, the side of lower terminal pad
Outer end is installed with the snap ring for blocking clamping joint, and the other side outer end of lower terminal pad is installed with for fixing torsionspring
Snap-gauge offers card slot on snap-gauge.
Further, the motor mount and upper valve body are separate structure, are set between torque motor and motor mount
It is equipped with heat insulating mattress, cooling water channel is provided on motor mount, and cooling water channel is circumscribed with water pipe head.
Further, the junction between the upper valve body and lower valve body is labyrinth seal structure.
Further, the lip of the lip seal circle is downward, and is provided with heat insulating mattress below lip seal circle.
Further, the upper valve body is fixed together with lower valve body by three contour screws, and contour screw
Bottom end is provided with pin shaft.
Further, it is upper that freely up and down spending for control valve block is separately provided in the axis hole up and down of the lower valve body
Axle sleeve and Lower shaft sleeve；Upper shaft sleeve and Lower shaft sleeve are T-type axle sleeve；Blanking cover, the lower section of Lower shaft sleeve are provided with above Upper shaft sleeve
It is provided with lower plug cover.
Further, the valve block uses material identical with lower valve body.
Further, the valve block is fixed on center shaft by lock-screw, and the head of screw welding of lock-screw
On valve block.
Further, the top center of the upper terminal pad offers D type hole, and the output shaft of torque motor is and D type hole
The D profile shaft to match.
Further, the top of the motor mount offers multiple location holes, the bottom end setting of the torque motor
There are multiple positioning pins.
The beneficial effects of adopting the technical scheme are that
The present invention directly drives terminal pad movement using torque motor as power source, and upper terminal pad connects lower terminal pad, lower company
It connects disk to link together with central axis, driving valve block is opened, closed.In order to effectively obstruct the heat radiation at valve body end, upper terminal pad
Welded with the output shaft of torque motor, lower terminal pad and central axis weld, and be vertically connected with disk, between only very little part face
Product is in contact, and has effectively obstructed the transmitting of body portion heat, simultaneously as upper lower valve body, assembly and mismachining tolerance are inevitable
Generation is not coaxial, is vertically connected with disk, connection type avoids part premature breakdown caused by different axis.Lip is housed in upper valve body
Mouth sealing ring, main function are seal against exhaust gas, prevent the exhaust gas altered on upper valve body portion, make torque motor from the corruption of exhaust gas
Erosion, ensure that high life, the high reliability of EGR dish valve.
Detailed description of the invention
Fig. 1 is perspective view of the explosion of the invention；
Fig. 2 is schematic diagram of internal structure of the invention；
Fig. 3 is the structural schematic diagram of terminal pad in the present invention；
Fig. 4 is the attachment structure schematic diagram of torque motor of the present invention Yu upper terminal pad；
Fig. 5 is the structural schematic diagram of motor mount of the present invention；
Fig. 6 is the attachment structure schematic diagram that the present invention is vertically connected with disk；
Fig. 7 is the attachment structure schematic diagram of terminal pad and spring under the present invention；
In figure: 1, fastening screw, 2, torque motor, 3, heat insulating mattress, 4, heat insulating mattress, 5, contour screw, 6, water pipe head, 7,
Upper blanking cover, 8, Upper shaft sleeve, 9, valve block, 10, lock-screw, 11, Lower shaft sleeve, 12, lower plug cover, 13, lower valve body, 14, central axis,
15, lower terminal pad, 16, upper valve body, 17, lip seal circle, 18, torsionspring, 19, upper terminal pad, 20, clamping joint, 21, card
Plate, 22, snap ring, 23, motor mount, 24, location hole, 25, card slot, 26, positioning pin.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figs. 1-2, the invention discloses a kind of torque motor EGR dish valve, including it is lower valve body 13, upper valve body 16, solid
The torque motor 2 for being located at the motor mount 23 at 16 top of upper valve body and being mounted on motor mount 23；Body 16 and lower valve
Body 13 is tightly connected, and is movably set with central axis 14 in upper valve body 16 and lower valve body 13；The company of being provided in the upper valve body 16
Disk 19, lower terminal pad 15, torsionspring 18 and lip seal circle 17 are connect, and the top of upper terminal pad 19 is welded on torque motor
On 2 output shaft, lower terminal pad 15 is welded on the top of central axis 14, and the side outer end of upper terminal pad 19 is connected to lower terminal pad
On 15 side outer end；On a central shaft 14, the top of torsionspring 18 is fixed on for 17 sets of torsionspring 18 and lip seal circle
In lower terminal pad 15, the bottom end of torsionspring 18 is fixed on the inner wall of upper valve body 16；Valve block 9 is provided in lower valve body 13, and
And valve block 9 is fixed on a central shaft 14.
The present invention directly drives the movement of terminal pad 19 using torque motor 2 as power source, and upper terminal pad 19 connects under connecting
Disk 15 is connect, lower terminal pad 15 links together with central axis 14, and driving valve block 9 is opened, closed.In order to effectively obstruct valve body end
Heat radiation, upper terminal pad 19 and the output shaft of torque motor 2 weld, and lower terminal pad 15 is welded with central axis 14, and is connected up and down
Connecing between disk 19,15 only has very little area to be in contact, and has effectively obstructed the transmitting of body portion heat, simultaneously as on
The assembly of lower valve body 16,13 and mismachining tolerance necessarily lead to not coaxially, and the connection type for being vertically connected with disk 19,15 avoids difference
Part premature breakdown caused by axis.Lip seal circle 17 is housed, main function is seal against exhaust gas, prevents upper valve in upper valve body 16
The exhaust gas altered on 16 part of body makes torque motor 2 from the corrosion of exhaust gas, ensure that high life, the high reliability of EGR dish valve.
The side outer end of upper terminal pad 19 of the invention is installed with the clamping joint 20 extended downwardly, the side of lower terminal pad 15
Outer end is installed with the snap ring 22 for blocking clamping joint 20, and the other side outer end of lower terminal pad 15 is installed with for fixing torsion
The snap-gauge 21 of spring 18 offers card slot 25 on snap-gauge 21.
Motor mount 23 and upper valve body 16 of the invention is separate structure, between torque motor 2 and motor mount 23
It is provided with heat insulating mattress 3, cooling water channel is provided on motor mount 23, and cooling water channel is circumscribed with water pipe head 6.Consider
To EGR dish valve operating temperature at 700 DEG C, and the work of torque motor 2 allows temperature to be only 150 DEG C, therefore motor is installed
Seat 23 is designed to separate structure with upper valve body 16, effectively hinders the transmitting of heat.Torque motor 2 and motor mount 23 it
Between heat insulating mattress 3 is housed, and increase cooling water channel on motor mount 23, the working environment of such torque motor 2 can be controlled
Within 150 DEG C, torque motor 2 can work normally system.Heat insulating mattress 3 keeps torque motor 2 and motor mount 23 not direct
Contact, cooling water channel can effectively cool down upper valve body 16, rubber seal and torque motor 2 of the protection on upper valve body 16.
Junction between upper valve body 16 and lower valve body 13 of the invention is labyrinth seal structure, greatly reduces exhaust gas
External leakage.
The lip of lip seal circle 17 of the invention is downward, and heat insulating mattress 4 is provided with below lip seal circle 17.
Because the lip of lip seal circle 17 is downward, air pressure is bigger, and sealing function is more reliable.And lip seal circle 17 fills below
There is heat insulating mattress 4, has effectively obstructed lower end valve body and contacted with the direct of rubber seal, avoided and alter high-temp waste gas to rubber
The injury of glue sealing ring.
Upper valve body 16 of the invention is fixed together with lower valve body 13 by three contour screws 5, and contour screw 5
Bottom end is provided with pin shaft, can be effective against the non-vertical assembly of EGR valve and the shearing force of generation.
The upper axis of control valve block 9 freely up and down spent is separately provided in the axis hole up and down of lower valve body 13 of the invention
Set 8 and Lower shaft sleeve 11；Upper shaft sleeve 8 and Lower shaft sleeve 11 are T-type axle sleeve；The top of Upper shaft sleeve 8 is provided with blanking cover 7, Lower shaft sleeve
11 lower section is provided with lower plug cover 12.The effect of Upper shaft sleeve 8 and Lower shaft sleeve 11 is the freely up and down degree of control valve piece 9.Due to
Upper and lower axle sleeve 8,11 is different from the material of lower valve body 13, and different thermal deformations can be generated in hot operation, so Upper shaft sleeve 8
Top is equipped with upper blanking cover 7, lower plug cover 12 is housed in the lower section of Lower shaft sleeve 11, upper blanking cover 7 and lower plug cover 12 use and lower valve body 13
Identical material avoids issuable play after thermal deformation difference effectively to compress axle sleeve up and down.
Valve block 9 of the invention uses material identical with lower valve body 13.The use of valve block 9 and valve body same material, and valve
Piece 9, which is adopted, to be molded with a mold, proof strength while avoid non-same material thermal deformation it is different after caused 9 clamping stagnation of valve block even
It is stuck.
Valve block 9 of the invention is fixed on a central shaft 14 by lock-screw 10, and the head of screw weldering of lock-screw 10
It connects on valve block 9.Valve block 9 is first locked on a central shaft 14 with lock-screw 10, and head of screw and valve block 9 are welded jail again after locking
Gu its role is to prevent from lock-screw 10 from deforming in the case of a high temperature to fall off.The starting limit of valve block 9 is existed by lower terminal pad 15
It is limited on upper valve body 16.
The top center of upper terminal pad 19 of the invention offers D type hole 27, and the output shaft of torque motor 2 is and D type hole
The D profile shaft to match ensure that terminal pad 19 and the output shaft of torque motor 2 are assemblied in unique position；
The top of motor mount 23 of the invention offers multiple location holes 24, and the bottom end of the torque motor 2 is provided with more
A positioning pin 26.
When assembly, upper terminal pad 19 is welded on the output shaft of torque motor 2 first, under being then pressed into Upper shaft sleeve 8
Upper blanking cover 7 is pressed into upper shaft hole and compresses Upper shaft sleeve 8 by the upper shaft hole of valve body 13, then Lower shaft sleeve 11 is pressed into 13 lower axle of lower valve body
Hole；Valve block 9 is put into lower valve body 13, central axis 14 is inserted into, valve block 9 is beaten in lower valve body 13 centered on central axis 14
Open and close are closed for several times, and valve block 9 is closed after adjusting valve block 9 in lower valve body 13 to a suitable position, lock two locking screws
Nail 10 is fixed on a central shaft 14 by valve block 9；Heat insulating mattress 4 is fitted into upper valve body 16, lip seal circle 17 is then pressed into；It will
Upper valve body 16 is packed into lower valve body 13, is locked with 3 contour screws 5.Torsionspring 18 is put into upper valve body 16, by lower terminal pad
15 are packed into central axis 14, compress valve block 9, by lower terminal pad 15 and 14 soldering of central axis；It is packed into heat insulating mattress 3, by torque motor 2
It is caught in lower terminal pad 15 with upper 19 soldering of terminal pad, rotation torque motor 2 pacifies the positioning pin 26 of torque motor 2 to alignment motor
The location hole 24 on seat 23 is filled, 3 fastening screws 1 are locked；Last two water pipe heads 6 are packed into cooling water channel, are pressed into blanking cover 12.
Claims (10)
1. a kind of torque motor EGR dish valve, it is characterised in that: including lower valve body (13), upper valve body (16), be installed in upper valve body
(16) motor mount (23) at the top of and the torque motor (2) being mounted on motor mount (23)；The upper valve body
(16) it is tightly connected with lower valve body (13), is movably set with central axis (14) in upper valve body (16) and lower valve body (13)；On described
It is provided with terminal pad (19), lower terminal pad (15), torsionspring (18) and lip seal circle (17) in valve body (16), and on
The top of terminal pad (19) is welded on the output shaft of torque motor (2), and lower terminal pad (15) is welded on the top of central axis (14)
End, the side outer end of upper terminal pad (19) is connected on the side outer end of lower terminal pad (15)；Torsionspring (18) and lip are close
Seal (17) covers on central axis (14), and the top of torsionspring (18) is fixed on lower terminal pad (15), torsionspring (18)
Bottom end be fixed on the inner wall of upper valve body (16)；It is provided with valve block (9) in the lower valve body (13), and valve block (9) is fixed
On central axis (14).
2. a kind of torque motor EGR dish valve according to claim 1, it is characterised in that: the one of the upper terminal pad (19)
Side outer end is installed with the clamping joint (20) extended downwardly, and the side outer end of lower terminal pad (15) is installed with for blocking clamping joint
(20) other side outer end of snap ring (22), lower terminal pad (15) is installed with the snap-gauge for fixing torsionspring (18)
(21), card slot (25) are offered on snap-gauge (21).
3. a kind of torque motor EGR dish valve according to claim 1, it is characterised in that: the motor mount (23) with
Upper valve body (16) is separate structure, is provided between torque motor (2) and motor mount (23) heat insulating mattress (3), motor peace
It is provided with cooling water channel on dress seat (23), and cooling water channel is circumscribed with water pipe head (6).
4. a kind of torque motor EGR dish valve according to claim 1, it is characterised in that: the upper valve body (16) and lower valve
Junction between body (13) is labyrinth seal structure.
5. a kind of torque motor EGR dish valve according to claim 1, it is characterised in that: the lip seal circle (17)
Lip is downward, and heat insulating mattress (4) are provided with below lip seal circle (17).
6. a kind of torque motor EGR dish valve according to claim 1, it is characterised in that: the upper valve body (16) and lower valve
Body (13) is fixed together by three contour screws (5), and the bottom end of contour screw (5) is provided with pin shaft.
7. a kind of torque motor EGR dish valve according to claim 1, it is characterised in that: above and below the lower valve body (13)
The Upper shaft sleeve (8) freely up and down spent and Lower shaft sleeve (11) of control valve block (9) are separately provided in axis hole；Upper shaft sleeve (8)
It is T-type axle sleeve with Lower shaft sleeve (11)；It is provided with above Upper shaft sleeve (8) blanking cover (7), Lower shaft sleeve is provided with below (11)
Lower plug cover (12).
8. a kind of torque motor EGR dish valve according to claim 1, it is characterised in that: the valve block (9) uses and lower valve
The identical material of body (13).
9. a kind of torque motor EGR dish valve according to claim 1, it is characterised in that: the valve block (9) passes through locking screw
Nail (10) is fixed on central axis (14), and the head of screw of lock-screw (10) is welded on valve block (9).
10. a kind of torque motor EGR dish valve according to claim 1, it is characterised in that: the top of the upper terminal pad (19)
It is offered among portion D type hole (22), the output shaft of torque motor (2) is the D profile shaft to match with D type hole, the motor installation
The top of seat (23) offers multiple location holes (24), and the bottom end of the torque motor (2) is provided with multiple positioning pins (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005745.XA CN109469736A (en) | 2019-01-03 | 2019-01-03 | A kind of torque motor EGR dish valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005745.XA CN109469736A (en) | 2019-01-03 | 2019-01-03 | A kind of torque motor EGR dish valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109469736A true CN109469736A (en) | 2019-03-15 |
Family
ID=65677130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910005745.XA Pending CN109469736A (en) | 2019-01-03 | 2019-01-03 | A kind of torque motor EGR dish valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469736A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT7934813V0 (en) * | 1979-02-23 | 1979-02-23 | Mingori Diffusion | IMPROVED TYPE TAP |
| EP0202413A1 (en) * | 1985-04-03 | 1986-11-26 | Nordson Corporation | Remote control proportional flow adhesive dispensing gun |
| CN203926815U (en) * | 2014-06-16 | 2014-11-05 | 上海交通大学 | The special discharging valve of field irrigation |
| CN108087127A (en) * | 2017-12-28 | 2018-05-29 | 无锡隆盛科技股份有限公司 | A kind of torque motor air throttle |
| CN108104956A (en) * | 2017-12-29 | 2018-06-01 | 无锡隆盛科技股份有限公司 | A kind of split type exhaust backpressure valve |
| CN209229035U (en) * | 2019-01-03 | 2019-08-09 | 无锡隆盛科技股份有限公司 | A kind of torque motor EGR dish valve |
-
2019
- 2019-01-03 CN CN201910005745.XA patent/CN109469736A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT7934813V0 (en) * | 1979-02-23 | 1979-02-23 | Mingori Diffusion | IMPROVED TYPE TAP |
| EP0202413A1 (en) * | 1985-04-03 | 1986-11-26 | Nordson Corporation | Remote control proportional flow adhesive dispensing gun |
| CN203926815U (en) * | 2014-06-16 | 2014-11-05 | 上海交通大学 | The special discharging valve of field irrigation |
| CN108087127A (en) * | 2017-12-28 | 2018-05-29 | 无锡隆盛科技股份有限公司 | A kind of torque motor air throttle |
| CN108104956A (en) * | 2017-12-29 | 2018-06-01 | 无锡隆盛科技股份有限公司 | A kind of split type exhaust backpressure valve |
| CN209229035U (en) * | 2019-01-03 | 2019-08-09 | 无锡隆盛科技股份有限公司 | A kind of torque motor EGR dish valve |
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