CN107587957A - EGR valve of engine - Google Patents
EGR valve of engine Download PDFInfo
- Publication number
- CN107587957A CN107587957A CN201710755725.5A CN201710755725A CN107587957A CN 107587957 A CN107587957 A CN 107587957A CN 201710755725 A CN201710755725 A CN 201710755725A CN 107587957 A CN107587957 A CN 107587957A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- housing
- guide pad
- 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
Links
Landscapes
- Lift Valve (AREA)
Abstract
The present invention discloses a kind of EGR valve of engine,Including housing (1),Valve rod (2) and valve block (3),Housing (1) side is provided with air inlet (4),Housing (1) opposite side is provided with gas outlet (5),The opening (6) passed through in the housing (1) provided with supplied gas,The valve block (3) is located on valve rod (2) and blocks opening (6) by the axial movement of valve rod (2) to separate gas or open opening (6) so that gas circulates,Mating holes (1.1) is provided with the housing (1),Described valve rod (2) one end coordinates with mating holes (1.1) activity,Valve rod (2) other end is provided with support member (7),It is provided with the support member (7) and is used for pilot hole (7.1) that is radially spacing to valve rod (2) and being available for valve rod (2) to move axially.A kind of valve rod amplitude of present invention offer is small, abrasion is few, the high EGR valve of engine of service life.
Description
Technical field
The present invention relates to the gas-circulating system of engine valve technology field, and in particular to a kind of EGR valve of engine.
Background technology
It is well known that waste gas recycle EGR as a kind of cost it is low, internal combustion engine is changed in itself it is small, can effectively reduce NOx
Emission control measure, applied by more and more extensive in internal combustion engine emission control field.Waste gas recycling is to start
In the machine course of work, portion is introduced into air inlet pipe, enters cylinder after being mixed with fresh air or the mixed platform gas of atomization
Burnt again.This method is currently used for reducing NOx, a kind of effective measure of discharge capacity.In admission line and row
The exhaust gas recirculation circuit being configured between feed channel for EGR gas to admission line is in combustion diesel engine
Known technology.However, as environmental consciousness improves, modern gasoline engine needs tightened up discharge and more preferable fuel-economy
Property；Petrol engine using EGR can improve fuel economy and reduce carbon dioxide discharge capacity, and can reduce NOx and
PM discharge.EGR valve is that the executive component of regulation EGR gas flow is played in egr system.EGR valve includes housing, housing
It is interior to be provided with the passage passed through for waste gas, valve rod is set on passage, valve block is installed on valve rod, passes through actuator driving stem and axially moves
It is dynamic to disconnect waste gas connection so that valve block is sealed into passage or open passage so that waste gas is by a kind of, existing EGR valve of double valve sheet,
The length of valve rod is generally larger than 100mm, when valve rod is moved axially by the actuator driving of one end in housing, other end meeting
Vacantly, gas causes valve rod free end radially high vibration by hitting valve rod at a high speed, so as to the mill of acceleration valve piece valve seat
Damage, causes internal leakage exceeded, and then discharge is not met national standard.
The content of the invention
The technical problems to be solved by the invention are：There is provided that a kind of valve rod amplitude is small, abrasion is few, service life is high to start
Machine EGR valve.
Technical scheme is used by the present invention solves the above problems：A kind of EGR valve of engine, including housing, valve rod and
Valve block, the housing side are provided with air inlet, and the housing opposite side is provided with gas outlet, passed through in the housing provided with supplied gas
Opening, the valve block is located on valve rod and blocks opening by the axial movement of valve rod to be flowed with separating gas or opening
Through hole circulates for gas, it is characterised in that：Mating holes is provided with the housing, described valve rod one end is matched somebody with somebody with mating holes activity
Close, the valve rod other end is provided with support member, is provided with the support member and is used for radially spacing to valve rod and is available for valve rod axial
Mobile pilot hole.
Compared with prior art, the advantage of the invention is that：Actuator drives valve rod to move axially, and the valve block on valve rod blocks up
Firmly opening is to separate gas or open opening, and the mating holes that valve rod one end is coordinated by activity is connected with actuator, valve
The bar other end is provided with support member, and the pilot hole of support member is radially spacing to valve rod, and pilot hole is available for valve rod to move axially,
When valve rod moves axially, support member ensures that the other end of valve rod will not be hanging, so as to avoid valve rod from being produced when being impacted by gas
Vibration so that valve block normal work and reduce abrasion, the overall service life height of EGR valve.
As a modification of the present invention, the support member is end cap, and the pilot hole is the blind hole for being located at end cap central,
By the improvement, end cap can separate the opening in housing with extraneous, and pilot hole is blind hole, further improves housing
Interior sealing.
There is a kind of improvement as the present invention, the end cap is fixed by bolt and housing, by the improvement, passed through
Bolt installs end cap, is easy to the dismounting of end cap, consequently facilitating the maintenance of EGR valve.
There is a kind of improvement as the present invention, the support member includes guide pad, and the pilot hole is located in guide pad
The heart and be through hole, it is provided with the outside of the guide pad and is used to opening and the closure of extraneous cut-off and the closure are provided with and used
In the mobile space for valve rod axial movement, by the improvement, valve rod moves in the pilot hole at guide pad center, and close
Mobile space and empty avoiding in capping, so as to provide the mobile space of valve rod axial movement, it will be flowed by closure on the outside of guide pad
Through hole separates with extraneous, so as to ensure the sealing property of EGR valve；And support member is divided into two portions of guide pad and closure
Point, guide pad directly contacts with valve rod and for supporting, closure is used for sealed valve body, and valve vibration of bar is not easy to be delivered to sealing
Cover so as to ensure the sealing property of closure.
There is a kind of improvement as the present invention, the guide pad is provided with the row for being used for connecting opening and mobile space
Dirty hole, by the improvement, mudhole is by the pressure balance of mobile space and opening, so as to avoid pressure mistake in mobile space
Height, gas pours intercommunicating pore to produce impact to valve body by pilot hole, also, mudhole is available for the dirt in opening to enter
Mobile space, mobile space can store a part of dirt to avoid dirt from being recycled with the gases by gas outlet into waste gas
Passage.
As a kind of improvement that also has of the present invention, the housing, which is provided with, to be used to insert to be assembled for valve rod, valve block
Mounting hole, the closure and mounting hole be interference fitted, and by the improvement, valve rod, valve block load housing by mounting hole
It is interior, then closure and mounting hole interference fit are loaded, easy for installation, good sealing effect.
There is a kind of improvement as the present invention, the guide pad is compressing by lamellar body, passes through the improvement, guide pad
The compressing intensity of integral type is high, processing cost is low, in light weight.
As a kind of improvement that also has of the present invention, the circumferentially spaced reinforcement face of the compacting provided with arc of guide pad,
By the improvement, reinforcement face can strengthen the support strength of guide pad, and then further avoid valve rod radial-play.
As a kind of improvement that also has of the present invention, the tapered portion axially extended is provided with the pilot hole of the guide pad,
The tapered portion and guide pad integral type are compressing, and by the improvement, guide pad is by pressing tapered portion, taper
The contact length of portion and valve rod is more than the thickness of lamellar body, so that guide pad is more preferable to the vibration proof effect of valve rod, improves resistance to
Mill property, increase service life.
Be provided with valve seat in the housing, the opening is located at valve seat center, the valve block and valve seat cooperation to separate or
Opening is opened, by the improvement, housing is coordinated by valve seat and valve block, and valve seat is easy to process and can ensure machining accuracy,
So as to ensure the sealing of valve block and valve seat.
Brief description of the drawings
Fig. 1 is overall structure diagrammatic cross-section when support member of the present invention is end cap.
Fig. 2 is overall structure diagrammatic cross-section when support member of the present invention is guide pad and closure.
Fig. 3 is guide pad dimensional structure diagram.
Fig. 4 is the mplifying structure schematic diagram at Fig. 2A.
1- housings, 1.1- mating holes, 1.2- mounting holes, 2- valve rods, 3- valve blocks, 4- air inlets, 5- gas outlets, 6- circulations
Hole, 7- support members, 7.1- pilot holes, 7.2- guide pads, 7.2.1- mudholes, 7.2.2- reinforcements face, 7.2.3- tapered portion,
7.3- closures, 7.3.1- mobile spaces, 8- bolts, 9- valve seats.
Embodiment
Embodiments of the invention are further described below in conjunction with the accompanying drawings.
As shown in figures 1-4,
A kind of EGR valve of engine, including housing 1, valve rod 2 and valve block 3, the side of housing 1 is provided with air inlet 4, described
The opposite side of housing 1 is provided with gas outlet 5, the opening 6 passed through in the housing 1 provided with supplied gas, and the valve block 3 is located at valve rod 2
Upper and by valve rod 2 axial movement blocks opening 6 to separate gas or open opening 6 so that gas circulates, described
Mating holes 1.1 is provided with housing 1, described one end of valve rod 2 coordinates with the activity of mating holes 1.1, and the other end of valve rod 2 is provided with support
Part 7, interior be provided with of the support member 7 are used for pilot hole 7.1 that is radially spacing to valve rod 2 and being available for valve rod 2 to move axially.
Wherein, the one end of valve rod 2 coordinates with the activity of mating holes 1.1 refers to that the one end of valve rod 2 can axially be moved in mating holes 1.1
It is dynamic, and valve rod 2 is connected with the actuator outside housing 1 by mating holes 1.1 and is axially moveable with driving stem 2, is driven herein
Part can be the component that conventional pushing motor, hydraulic cylinder etc. can provide reciprocating driving force, pushing motor or hydraulic cylinder it is defeated
Shaft is connected with valve rod 2, therefore will not be repeated here.
Wherein, the support member 7 is end cap, and the pilot hole 7.1 is the blind hole for being located at end cap central.
Wherein, the end cap is fixed by bolt 8 and housing 1.
Wherein, the support member 7 includes guide pad 7.2, and the pilot hole 7.1 is located at the center of guide pad 7.2 and is through hole,
The outside of guide pad 7.2 is provided with to be used to the closure 7.3 and the closure 7.3 of opening 6 and extraneous cut-off being provided with and used
In the mobile space 7.3.1 moved axially for valve rod 2.
Wherein, the guide pad 7.2, which is provided with, is used to connect opening 6 and mobile space 7.3.1 mudhole 7.2.1.
Wherein, the housing 1 is provided with the mounting hole 1.2 for being used for inserting to be assembled for valve rod 2, valve block 3, described close
Capping 7.3 is interference fitted with mounting hole 1.2.
Wherein, the guide pad 7.2 is compressing by lamellar body.
Wherein, circumferentially spaced reinforcement face 7.2.2 of the compacting provided with arc of the guide pad 7.2.
Wherein, the tapered portion 7.2.3 axially extended, the tapered portion are provided with the pilot hole 7.1 of the guide pad 7.2
7.2.3 compressing with the integral type of guide pad 7.2, as can be seen from Fig. 4, guide pad 7.2.1 sets tapered portion 7.2.3, tapered portion
7.2.3 it is X with the contact length of valve rod 2, the thickness of the lamellar body of guide pad 7.2 is Y, because hypotenuse is more than right-angle side,
Therefore X is more than Y, so that guide pad 7.2 is bigger to the Area of bearing of valve rod 2, the effect of radial direction vibration proof is more preferable.
Wherein, valve seat 9 is provided with the housing 1, the opening 6 is located at the center of valve seat 9, and the valve block 3 is matched somebody with somebody with valve seat 9
Close to separate or open opening 6, housing 1 is coordinated by valve seat 9 and valve block 3, and valve seat 9 is easy to process and can ensure processing essence
Degree, so as to ensure the sealing property during cooperation of valve block 3 and valve seat 9.
Only highly preferred embodiment of the present invention is described above, but is not to be construed as limiting the scope of the invention.This
Invention is not only limited to above example, and its concrete structure allows to change.All protection models in independent claims of the present invention
Interior made various change is enclosed to all fall in the scope of protection of the present invention.
Claims (9)
1. a kind of EGR valve of engine, including housing (1), valve rod (2) and valve block (3), housing (1) side is provided with air inlet
(4), housing (1) opposite side is provided with gas outlet (5), the opening (6) passed through in the housing (1) provided with supplied gas, institute
Valve block (3) is stated to be located on valve rod (2) and block opening (6) by the axial movement of valve rod (2) to separate gas or opening
Opening (6) circulates for gas, it is characterised in that：Mating holes (1.1), described valve rod (2) one end are provided with the housing (1)
Coordinate with mating holes (1.1) activity, valve rod (2) other end is provided with support member (7), is provided with and is used in the support member (7)
Pilot hole (7.1) that is radially spacing to valve rod (2) and being available for valve rod (2) to move axially.
2. EGR valve of engine according to claim 1, it is characterised in that：The support member (7) is end cap, the guiding
Hole (7.1) is the blind hole for being located at end cap central.
3. EGR valve of engine according to claim 2, it is characterised in that：The end cap passes through bolt (8) and housing (1)
It is fixed.
4. EGR valve of engine according to claim 1, it is characterised in that：The support member (7) includes guide pad (7.2),
The pilot hole (7.1) is located at guide pad (7.2) center and is through hole, is provided with the outside of the guide pad (7.2) and is used to circulate
Hole (6) and the closure (7.3) and the closure (7.3) of extraneous cut-off are provided with the movement being used for for valve rod (2) axial movement
Gap (7.3.1).
5. EGR valve of engine according to claim 4, it is characterised in that：The guide pad (7.2), which is provided with, to be used to connect
The mudhole (7.2.1) of opening (6) and mobile space (7.3.1).
6. EGR valve of engine according to claim 4, it is characterised in that：The housing (1), which is provided with, to be used to supply valve rod
(2), the mounting hole (1.2) that valve block (3) inserts to be assembled, the closure (7.3) are interference fitted with mounting hole (1.2).
7. EGR valve of engine according to claim 4, it is characterised in that：The guide pad (7.2) is pressed into by lamellar body
Type.
8. EGR valve of engine according to claim 7, it is characterised in that：The circumferentially spaced compacting of the guide pad (7.2)
Reinforcement face (7.2.2) provided with arc.
9. EGR valve of engine according to claim 7, it is characterised in that：The pilot hole (7.1) of the guide pad (7.2)
Place is provided with the tapered portion (7.2.3) axially extended, and the tapered portion (7.2.3) and guide pad (7.2) integral type are compressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710755725.5A CN107587957A (en) | 2017-08-29 | 2017-08-29 | EGR valve of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710755725.5A CN107587957A (en) | 2017-08-29 | 2017-08-29 | EGR valve of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107587957A true CN107587957A (en) | 2018-01-16 |
Family
ID=61050327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710755725.5A Pending CN107587957A (en) | 2017-08-29 | 2017-08-29 | EGR valve of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107587957A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0770775A1 (en) * | 1995-10-26 | 1997-05-02 | Ranco Incorporated of Delaware | Valve |
| CN1154454A (en) * | 1995-10-26 | 1997-07-16 | 特拉华兰科有限公司 | Valve |
| JPH11182355A (en) * | 1997-12-15 | 1999-07-06 | Nissan Motor Co Ltd | Structure of double poppet type valve device |
| US6330880B1 (en) * | 1998-02-27 | 2001-12-18 | Mitsubishi Denki Kabushiki Kaisha | Exhaust gas recirculation system |
| CN102230430A (en) * | 2011-06-03 | 2011-11-02 | 浙江九隆机械有限公司 | EGR (Exhaust Gas Recirculation) valve |
| CN202108615U (en) * | 2011-06-03 | 2012-01-11 | 浙江九隆机械有限公司 | Exhaust gas recirculation (EGR) valve |
| CN105003670A (en) * | 2014-03-27 | 2015-10-28 | 艾默生过程管理调节技术公司 | Double port pressure regulator with floating seat |
| CN207348983U (en) * | 2017-08-29 | 2018-05-11 | 博格华纳汽车零部件(宁波)有限公司 | EGR valve of engine |
-
2017
- 2017-08-29 CN CN201710755725.5A patent/CN107587957A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0770775A1 (en) * | 1995-10-26 | 1997-05-02 | Ranco Incorporated of Delaware | Valve |
| CN1154454A (en) * | 1995-10-26 | 1997-07-16 | 特拉华兰科有限公司 | Valve |
| JPH11182355A (en) * | 1997-12-15 | 1999-07-06 | Nissan Motor Co Ltd | Structure of double poppet type valve device |
| US6330880B1 (en) * | 1998-02-27 | 2001-12-18 | Mitsubishi Denki Kabushiki Kaisha | Exhaust gas recirculation system |
| CN102230430A (en) * | 2011-06-03 | 2011-11-02 | 浙江九隆机械有限公司 | EGR (Exhaust Gas Recirculation) valve |
| CN202108615U (en) * | 2011-06-03 | 2012-01-11 | 浙江九隆机械有限公司 | Exhaust gas recirculation (EGR) valve |
| CN105003670A (en) * | 2014-03-27 | 2015-10-28 | 艾默生过程管理调节技术公司 | Double port pressure regulator with floating seat |
| CN207348983U (en) * | 2017-08-29 | 2018-05-11 | 博格华纳汽车零部件(宁波)有限公司 | EGR valve of engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201041118Y (en) | Diesel engine fuel injection machinery unit pump | |
| CN207348983U (en) | EGR valve of engine | |
| KR100584015B1 (en) | Engine conversions | |
| CN101260844A (en) | Petrol engine intake duct | |
| CN105569876B (en) | Cylinder, reciprocating piston internal combustion engine and method of operating the same | |
| CN107587957A (en) | EGR valve of engine | |
| CN202468044U (en) | Small gasoline engine cylinder cover | |
| CN209179895U (en) | A kind of engine valve cover cap assembly | |
| CN201125795Y (en) | Cylinder of diesel engine | |
| CN215979628U (en) | Piston with oil return channel and engine | |
| CN109312642B (en) | Valve device and valve guide | |
| CN104763515A (en) | Diesel engine and vehicle | |
| CN209308758U (en) | A kind of ball-bearing turbocharger with high performance | |
| CN210105940U (en) | Oil pump | |
| CN202250444U (en) | Piston of internal combustion engine | |
| CN207195033U (en) | A kind of piston engine | |
| JP2017061927A (en) | Gas feeding system and cylinder liner for reciprocating piston internal combustion engine, reciprocating piston internal combustion engine, and method for operating reciprocating piston internal combustion engine | |
| CN202055891U (en) | Respirator circulating system structure for separating oil from gas of universal gasoline engine | |
| CN106704018A (en) | Engine and vehicle | |
| CN202140186U (en) | Diesel engine | |
| CN202140370U (en) | Pneumatic oil supplying cylinder | |
| CN201148922Y (en) | Seal piston of internal combustion engine | |
| CN202628294U (en) | Multicylinder engine air cylinder cover | |
| CN102900487B (en) | Piston valve device | |
| CN202250451U (en) | Electric spraying piston with oil duct |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200323 Address after: 315191 No. 1356, Jingjiang Road, Yinzhou Industrial Park, Yinzhou District, Ningbo City, Zhejiang Province Applicant after: BORGWARNER EMISSIONS SYSTEMS (NINGBO) Co.,Ltd. Address before: 315100 Zhejiang city of Ningbo province Yinzhou District investment business center No. 188 Road (West) Valley Applicant before: BORGWARNER AUTOMOTIVE COMPONENTS (NINGBO) Co.,Ltd. |