CN207212524U - EGR exhaust recycle valve assembly - Google Patents
EGR exhaust recycle valve assembly Download PDFInfo
- Publication number
- CN207212524U CN207212524U CN201721082364.4U CN201721082364U CN207212524U CN 207212524 U CN207212524 U CN 207212524U CN 201721082364 U CN201721082364 U CN 201721082364U CN 207212524 U CN207212524 U CN 207212524U
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- CN
- China
- Prior art keywords
- gear
- valve
- reinforcement
- housing
- valve body
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of EGR exhaust recycle valve assembly,Including valve body,Motor,Vacuum valve and cooler,Motor and vacuum valve are arranged on valve body,The opening of valve body is connected with cooler,The rotating shaft of motor passes through train of reduction gears and output axis connection,Output shaft end is socketed with driving and hooks plate,Valve rod tail end stirs fork provided with " u "-shaped,Stir and bearing is installed in the open slot of fork,Driving hooks the hook and slot that plate is provided with arc,Bearing is arranged in hook and slot,Return torsion spring is socketed with output shaft,The leg insertion driving of the return torsion spring is hooked on plate,Cooler has housing,The first reinforcement set along side wall diagonal is also convexly equipped with housing sidewall,The staggeredly symmetry direction of first reinforcement is convexly equipped with the second hook-shaped reinforcement respectively,Boss is also convexly equipped with the interval location of the first reinforcement and the second reinforcement.So just realize accurate waste gas flow quantity control, good cooling results and the reliable technique effect of structure.
Description
Technical field
It the utility model is related to the control valve assembly in scheme for exhaust gas circulation system in a kind of engine, and in particular to a kind of
EGR exhaust recycle valve assembly.
Background technology
EGR exhaust recycle valve assembly is applied to vehicle engine exhaust gas exhaust system, is to solve exhaust emissions most at present
Preferable product, it can reduce the nitrogen oxides and hydrocarbon of engine high-temperature generation in vehicle traveling process, from
And exhaust emissions reaches standard.
Traditional EGR exhaust recycle valve assembly has a valve body and cooler, has valve port, valve rod in valve body, on valve rod
Provided with the valve block for blocking valve port.The activity of valve rod typically connects driving or inclined by driving by motor by worm gear structure
Heart wheel rotates the driving of push valve bar, and some is directly connected to by stepper motor, to the aperture precision of valve port and valve block in these structures
It still can not well control, make the insufficient of exhaust-gas treatment, it is undesirable to ultimately result in tail gas waste discharge, and existing EGR
The single cooling effect of cooler construction is poor, and structure is insecure, it is difficult to meet the vent gas treatment work of some worm gear supercharging engines,
Cause the significantly rise of engine in-cylinder combustion temperature and pressure, counteracting EGR reduces NOX effect, makes exhaust emissions not
It is up to standard.
The content of the invention
In view of the shortcomings of the prior art, the purpose of this utility model be to provide a kind of waste gas flow quantity control precisely, cooling
Effect is good and the reliable EGR exhaust recycle valve assembly of structure.
To achieve the above object, the utility model provides following technical scheme：A kind of EGR exhaust recycle valve assembly,
Including valve body, motor, vacuum valve and cooler, the motor and vacuum valve are arranged on the valve body, and the valve body is opened
Mouth is connected with the cooler, and described valve body is provided with the valve port passed through for waste gas, and valve rod, valve are provided with described valve body
Bar front end is provided with the valve block for blocking valve port, and the position that the valve rod tail end is corresponded in the valve body is provided with output shaft, the motor
Rotating shaft by train of reduction gears with output axis connection, described output shaft end be socketed with driving hook plate, described valve rod tail
Fork is stirred in end provided with " u "-shaped, and bearing is provided with the open slot for stirring fork, and described driving hooks plate and is provided with arc
Hook and slot, described bearing are arranged in described hook and slot, and return torsion spring is socketed with described output shaft, the return torsion spring
The described driving of leg insertion is hooked on plate, and the cooler has housing, is also convexly equipped with along side wall in described housing sidewall
The first reinforcement that diagonal is set, the staggeredly symmetry direction of first reinforcement are convexly equipped with hook-shaped second and strengthened respectively
Muscle, boss is also convexly equipped with the interval location of the first reinforcement and the second reinforcement.
Described train of reduction gears includes drive gear, deceleration convergence gear and the fan being socketed on the machine shaft
Shape gear, the deceleration convergence gear include first gear and second gear, and described drive gear is connected tooth with the deceleration
The first gear engagement of wheel, the second gear engage with the sector gear, and described sector gear is socketed in the output
On axle, the number of teeth of described first gear is more than the number of teeth of the second gear wheel, and the number of teeth of described drive gear is less than the
The number of teeth of one gear.
Described shell nozzle is provided with adpting flange, described housing and adpting flange soldering connection, described housing
Several tracheaes are inside inserted with, sealing dividing plate is provided between the gentle pipe outer wall of opening of the housing, is connected on described housing
There is water inlet pipe, delivery port is provided with described adpting flange, the delivery port communicates with housing cavity.
Described tracheae includes air inlet pipe and escape pipe, and the sealing dividing plate location mid-shaft, which is provided with, divides plate equally, described
Air inlet pipe and described escape pipe are arranged on the both sides for dividing plate equally.
Contact with each other setting between described air inlet pipe, and contact with each other setting between described escape pipe.
The material of described housing, adpting flange and tracheae is stainless steel 304 material.
This structure of the present utility model, machine shaft reduce rotating ratio by train of reduction gears so that output shaft turns
It is dynamic more accurate, and drive driving to hook plate and rotate, the bearing that driving hook plate makes to be arranged on valve rod in rotation process occurs to hang down
Go straight up to drop so that produce gap adjustment on valve rod between valve block and valve port, and then be precisely controlled the circulation of waste gas, and structure can
Lean on, and the waste gas of the condition of high temperature is rushed in valve body to enter in tracheae and conducted heat on tracheae outer wall, coolant passes through water inlet pipe
Tracheae can be cooled down after into housing, because the disengaging tracheae of tracheae all contacts with each other respectively so that placed in housing
More tracheae and effectively improve radiating effect, the coolant of heat absorption is flowed out by the delivery port on adpting flange, and shell
The first reinforcement, the second reinforcement and boss on body sidewall can improve the rugged performance of housing, so just realize waste gas
Flow quantity control precisely, good cooling results and the reliable technique effect of structure.
The utility model is further described with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structural perspective of the utility model embodiment；
Fig. 2 is the structure sectional view of the utility model embodiment；
Fig. 3 is the partial exploded view of the utility model embodiment；
Fig. 4 is the cooler opening front view of the utility model embodiment.
Embodiment
The utility model is specifically described below by embodiment, is served only for carrying out further the utility model
Explanation, it is impossible to be interpreted as the restriction to scope of protection of the utility model.
As shown in Fig. 1-Fig. 4, the utility model discloses a kind of EGR exhaust recycle valve assembly, including valve body 1, motor
2nd, vacuum valve 3 and cooler 4, motor 2 and vacuum valve 3 are arranged on valve body 1, and the opening of valve body 1 is connected with cooler 4, valve
Body 1 is provided with the valve port 11 passed through for waste gas, and valve rod 5 is provided with valve body 1, and the front end of valve rod 5 is provided with the valve block for blocking valve port 11
51, the position that the tail end of valve rod 5 is corresponded in valve body 1 is provided with output shaft 7, and the rotating shaft of motor 2 passes through train of reduction gears 8 and output shaft 7
Connection, the end of output shaft 7 are socketed with driving and hook plate 9, and the tail end of valve rod 5 stirs fork 6 provided with " u "-shaped, in the open slot for stirring fork 6
Bearing 10 is installed, driving hooks the hook and slot 91 that plate 9 is provided with arc, and bearing 10 is arranged in hook and slot 91, is socketed on output shaft 7
There is return torsion spring 101, the leg insertion driving of the return torsion spring 101 is hooked on plate 9, and cooler 4 has housing 41, in the side of housing 41
The first reinforcement 411 set along side wall diagonal, the staggeredly symmetry direction of first reinforcement 411 are also convexly equipped with wall
The second hook-shaped reinforcement 412 is convexly equipped with respectively, in the interval location also projection of the first reinforcement 411 and the second reinforcement 412
There is boss 413.
Train of reduction gears 8 includes drive gear 81, deceleration convergence gear 82 and the sector being socketed in the rotating shaft of motor 2
Wheel 83, deceleration convergence gear 82 include first gear 821 and second gear 822, drive gear 81 and deceleration convergence gear 82
First gear 821 is engaged, and second gear 822 engages with sector gear 83, and sector gear 83 is socketed on output shaft 7, the first tooth
The number of teeth of wheel 821 is more than the number of teeth that second gear 822 is taken turns, and the number of teeth of drive gear 81 is less than the number of teeth of first gear 821.Motor
2 rotating shafts reduce rotating ratio by train of reduction gears 8 so that and the rotation of output shaft 7 is more accurate, and then control the circulation of waste gas
Accuracy.
The opening of housing 41 is provided with adpting flange 42, housing 41 and the soldering connection of adpting flange 42, is inserted with housing 41
Several tracheaes 43, sealing dividing plate 44 is provided between the opening and the outer wall of tracheae 43 of housing 41, water inlet pipe is connected with housing 41
45, delivery port 46 is provided with adpting flange 42, delivery port 46 communicates with the inner chamber of housing 41.Such structure can make tracheae 43
Fixed structure is relatively reliable, and effectively improves the cooling effect to waste gas.
Tracheae 43 includes air inlet pipe 431 and escape pipe 432, and sealing dividing plate 44 location mid-shaft, which is provided with, divides plate 441, air inlet equally
Pipe 431 and escape pipe 432 are arranged on the both sides for dividing plate 441 equally.It can so make the disengaging of waste gas more efficient, further improve cold
But effect.
Contact with each other setting between air inlet pipe 431, and contact with each other setting between escape pipe 432.It can so place more
Tracheae 43, the effect of conduction waste-gas heat is set further to improve.
The material of housing 41, adpting flange 42 and tracheae 43 is stainless steel 304 material.It so can further improve heavily fortified point
Gu degree.
This structure of the present utility model, the rotating shaft of motor 2 reduce rotating ratio by train of reduction gears 8 so that output shaft 7
Rotation is more accurate, and drives driving to hook plate 9 and rotate, and driving hooks plate 9 makes the bearing 10 on valve rod 5 in rotation process
It is vertically moved up or down so that produce gap adjustment on valve rod 5 between valve block 51 and valve port 11, and then be precisely controlled the stream of waste gas
It is logical, and structure is reliable, and the waste gas of the condition of high temperature rushes to enter in tracheae 43 in valve body 1 and conducts heat to the outer wall of tracheae 43
On, coolant can cool down after entering housing 41 by water inlet pipe 45 to tracheae 43, because the escape pipe 432 that enters of tracheae 43 divides
All do not contact with each other so that more tracheae 43 is placed in housing 41 and effectively improves radiating effect, the cooling of heat absorption
Liquid is flowed out by the delivery port 46 on adpting flange 42, and the first reinforcement 411, the second reinforcement 412 in the side wall of housing 41
The rugged performance of housing 41 can be improved with boss 413, so just realize waste gas flow quantity control precisely, good cooling results and
The reliable technique effect of structure.
Claims (6)
1. a kind of EGR exhaust recycle valve assembly, including valve body, motor, vacuum valve and cooler, the motor and vacuum valve
On the valve body, the opening of the valve body is connected with the cooler, and described valve body is provided with what is passed through for waste gas
Valve port, valve rod is provided with described valve body, and valve rod front end is provided with the valve block for blocking valve port, the valve rod is corresponded in the valve body
The position of tail end is provided with output shaft, it is characterised in that：The rotating shaft of the motor is described by train of reduction gears and output axis connection
Output shaft end be socketed with driving and hook plate, described valve rod tail end is provided with " u "-shaped and stirs fork, the open slot for stirring fork
Bearing is inside installed, described driving hooks the hook and slot that plate is provided with arc, and described bearing is arranged in described hook and slot, in institute
Return torsion spring is socketed with the output shaft stated, the driving that the leg insertion of the return torsion spring is described is hooked on plate, the cooling apparatus
There is housing, the first reinforcement set along side wall diagonal is also convexly equipped with described housing sidewall, first reinforcement
The staggeredly symmetry direction of muscle is convexly equipped with the second hook-shaped reinforcement respectively, in the first reinforcement and the interval location of the second reinforcement
Also it is convexly equipped with boss.
2. EGR exhaust recycle valve assembly according to claim 1, it is characterised in that：Described train of reduction gears includes
Drive gear, deceleration convergence gear and the sector gear being socketed on the machine shaft, the deceleration convergence gear include
First gear and second gear, described drive gear engage with the first gear of the deceleration convergence gear, second tooth
Wheel is engaged with the sector gear, and described sector gear is socketed on the output shaft, and the number of teeth of described first gear is big
In the number of teeth of the second gear, the number of teeth of described drive gear is less than the number of teeth of first gear.
3. EGR exhaust recycle valve assembly according to claim 1, it is characterised in that：Described shell nozzle is provided with
Adpting flange, described housing and adpting flange soldering connection, several tracheaes are inserted with described housing, the housing
Sealing dividing plate is provided between the gentle pipe outer wall that is open, water inlet pipe is connected with described housing, is set on described adpting flange
There is delivery port, the delivery port communicates with housing cavity.
4. EGR exhaust recycle valve assembly according to claim 3, it is characterised in that：Described tracheae includes air inlet pipe
And escape pipe, the sealing dividing plate location mid-shaft, which is provided with, divides plate equally, and described air inlet pipe and described escape pipe are arranged on institute
State the both sides for dividing plate equally.
5. EGR exhaust recycle valve assembly according to claim 4, it is characterised in that：Between described air inlet pipe mutually
Contact is set, and contact with each other setting between described escape pipe.
6. EGR exhaust recycle valve assembly according to claim 3, it is characterised in that：Described housing, adpting flange with
And the material of tracheae is stainless steel 304 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082364.4U CN207212524U (en) | 2017-08-28 | 2017-08-28 | EGR exhaust recycle valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082364.4U CN207212524U (en) | 2017-08-28 | 2017-08-28 | EGR exhaust recycle valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212524U true CN207212524U (en) | 2018-04-10 |
Family
ID=61817104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721082364.4U Expired - Fee Related CN207212524U (en) | 2017-08-28 | 2017-08-28 | EGR exhaust recycle valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207212524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669176A (en) * | 2021-09-08 | 2021-11-19 | 温州汇众汽车电器有限公司 | EGR valve assembly with water cooling function |
-
2017
- 2017-08-28 CN CN201721082364.4U patent/CN207212524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669176A (en) * | 2021-09-08 | 2021-11-19 | 温州汇众汽车电器有限公司 | EGR valve assembly with water cooling function |
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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: 20180410 Termination date: 20210828 |