CN207212525U - Waste gas recycles EGR valve - Google Patents
Waste gas recycles EGR valve Download PDFInfo
- Publication number
- CN207212525U CN207212525U CN201721082626.7U CN201721082626U CN207212525U CN 207212525 U CN207212525 U CN 207212525U CN 201721082626 U CN201721082626 U CN 201721082626U CN 207212525 U CN207212525 U CN 207212525U
- Authority
- CN
- China
- Prior art keywords
- valve
- latch
- valve body
- waste gas
- valve rod
- 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.)
- Expired - Fee Related
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- Mechanically-Actuated Valves (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses a kind of waste gas to recycle EGR valve, including valve body and motor, motor is arranged on the side of valve body, valve body is provided with the valve port passed through for waste gas, valve rod is installed in valve body, valve rod front end is provided with the valve block for blocking valve port, alignd with the axis of machine shaft the axis of valve port, the shift fork of " u "-shaped shape is connected with machine shaft end, the tail end of valve rod is inserted with the latch being radially arranged, shift fork is provided with for the up and down opening stopper slot of latch, latch both ends are respectively sleeved on bearing, locating ring is provided with valve body, the annular wall of locating ring is provided with tipper, bearing is arranged in tipper.So just realize valve handle activity control accuracy height and the reliable technique effect of structure so that the aperture precision of valve block and valve port more preferably controls.
Description
Technical field
It the utility model is related to the control valve in scheme for exhaust gas circulation system in a kind of engine, and in particular to a kind of waste gas is again
Circulate EGR valve.
Background technology
Waste gas recycling EGR valve is applied to vehicle engine exhaust gas exhaust system using negative pressure of vacuum operation principle, is mesh
The preceding solution optimal product of exhaust emissions, it can reduce the nitrogen oxides of engine high-temperature generation in vehicle traveling process
And hydrocarbon, so as to which exhaust emissions reaches standard.
Traditional waste gas recycling EGR valve has valve body, has valve port, valve rod in valve body, and valve rod, which is provided with, blocks valve port
Valve block.The activity of valve rod typically connects driving by worm gear structure by motor or rotates pressing by band movable eccentric wheel
Valve rod is driven, and some is directly connected to by stepper motor, still can not be fine to the aperture precision of valve port and valve block in these structures
Control, make the insufficient of exhaust-gas treatment, it is undesirable to ultimately result in tail gas waste discharge.
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 valve handle activity control accuracy it is high and
The reliable waste gas recycling EGR valve of structure.
To achieve the above object, the utility model provides following technical scheme：A kind of waste gas recycles EGR valve, including
Valve body and motor, the motor are arranged on the side of the valve body, and described valve body is provided with the valve port passed through for waste gas, described
Valve body in valve rod is installed, valve rod front end is provided with the valve block for blocking valve port, the axis of the valve port and the machine shaft
Axis alignment, the shift fork of " u "-shaped shape is connected with machine shaft end, the tail end of the valve rod is inserted with what is be radially arranged
Latch, the shift fork are provided with for the up and down opening stopper slot of the latch, and described latch both ends are respectively sleeved on axle
Hold, be provided with locating ring in the valve body, the annular wall of the locating ring is provided with tipper, and the bearing is arranged on tipper
It is interior.
It is in square that described valve rod tail end, which is set, is respectively equipped with the latch positioned at two block side positions of the party
Spacing ring, the thickness at interval and the valve rod tail end between two spacing rings match.
This structure of the present utility model, can be rotated by motor, drive shift fork rotation, and shift fork is made by twisting latch
The bearing at latch both ends tipper along locating ring slides, and forces bearing to be subjected to displacement in vertical direction, because latch is connected to
The tail end of valve rod so that during rotation, vertical direction changes bearing band ovable valve stem, and then controls valve rod front end
The gap of valve block and valve port changes, and because the stroke of the tipper on locating ring is larger, rotation of the motor in rotary course is adjusted
Whole scope so just realizes that valve handle activity control accuracy is high and the reliable technique effect of structure with regard to big so that valve block and
The aperture precision of valve port more preferably controls.
The utility model is further described with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structure sectional view of the utility model embodiment；
Fig. 2 is the inside three-dimensional structure diagram 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 Figure 1 and Figure 2, the utility model discloses a kind of waste gas to recycle EGR valve, including valve body 1 and motor 2, electricity
Machine 2 is arranged on the side of valve body 1, and valve body 1 is provided with the valve port 11 passed through for waste gas, is provided with valve rod 3 in valve body 1, before valve rod 3
End is provided with the valve block 31 for blocking valve port 11, and the axis of valve port 11 is alignd with the axis of machine shaft 21, in machine shaft 21
End is connected with the shift fork 4 of " u "-shaped shape, and the tail end of valve rod 3 is inserted with the latch 5 being radially arranged, and shift fork 4 is provided with and supplies latch 5
Up and down opening stopper slot 41, the both ends of latch 5 are respectively sleeved on bearing 6, locating ring 7 are provided with valve body 1, locating ring 7
Annular wall is provided with tipper 71, and bearing 6 is arranged in tipper 71.
It is in square 32 that the tail end of valve rod 3, which is set, is respectively equipped with latch 5 in two side positions positioned at party's bulk 32 spacing
Ring 51, interval and the thickness of the tail end of valve rod 3 between two spacing rings 51 match.So latch 5 can be made preferably to position, effectively
Prevent latch 5 from position skew occurs, ensure the reliability and stability of structure.
It this structure of the present utility model, can be rotated by motor 2, drive shift fork 4 to rotate, shift fork 4 is by twisting latch
5, the bearing 6 at the both ends of latch 5 tipper 71 along locating ring 7 is slided, forces bearing 6 to be subjected to displacement in vertical direction, due to
Latch 5 is connected to the tail end of valve rod 3 so that and with ovable valve stem 3 during rotation, vertical direction changes bearing 6, and then
Control the gap change of the valve block 31 and valve port 11 of the front end of valve rod 3, because the stroke of the tipper 71 on locating ring 7 is larger, electricity
The scope of rotation adjustment of the machine 2 in rotary course so just realizes the activity control accuracy of valve rod 3 height and structure can with regard to big
The technique effect leaned on so that the aperture precision of valve block 31 and valve port 11 more preferably controls.
Claims (2)
1. a kind of waste gas recycles EGR valve, including valve body and motor, the motor is arranged on the side of the valve body, described
Valve body is provided with the valve port passed through for waste gas, and valve rod is provided with described valve body, and valve rod front end is provided with the valve block for blocking valve port,
It is characterized in that：The axis of the valve port is alignd with the axis of the machine shaft, is connected with " U " in machine shaft end
The shift fork of shape, the tail end of the valve rod are inserted with the latch being radially arranged, and the shift fork is provided with living up and down for the latch
Dynamic opening stopper slot, described latch both ends are respectively sleeved on bearing, locating ring are provided with the valve body, the locating ring
Annular wall is provided with tipper, and the bearing is arranged in tipper.
2. waste gas according to claim 1 recycles EGR valve, it is characterised in that：It is in square that described valve rod tail end, which is set,
Shape, be respectively equipped with spacing ring positioned at two block side positions of the party on the latch, the interval between two spacing rings with
The thickness of the valve rod tail end matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082626.7U CN207212525U (en) | 2017-08-28 | 2017-08-28 | Waste gas recycles EGR valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082626.7U CN207212525U (en) | 2017-08-28 | 2017-08-28 | Waste gas recycles EGR valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212525U true CN207212525U (en) | 2018-04-10 |
Family
ID=61817128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721082626.7U Expired - Fee Related CN207212525U (en) | 2017-08-28 | 2017-08-28 | Waste gas recycles EGR valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207212525U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056454A (en) * | 2019-05-20 | 2019-07-26 | 瑞安市科亿汽车配件有限公司 | A kind of high leakproofness exhaust gas recirculation valve |
| CN111780903A (en) * | 2020-06-30 | 2020-10-16 | 东风商用车有限公司 | Butterfly type EGR valve motor torque characteristic measuring device and measuring method |
-
2017
- 2017-08-28 CN CN201721082626.7U patent/CN207212525U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056454A (en) * | 2019-05-20 | 2019-07-26 | 瑞安市科亿汽车配件有限公司 | A kind of high leakproofness exhaust gas recirculation valve |
| CN111780903A (en) * | 2020-06-30 | 2020-10-16 | 东风商用车有限公司 | Butterfly type EGR valve motor torque characteristic measuring device and measuring method |
| CN111780903B (en) * | 2020-06-30 | 2022-03-15 | 东风商用车有限公司 | Butterfly type EGR valve motor torque characteristic measuring device and measuring method |
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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 |