CN205315154U - Commercial car is differential pressure sensor subassembly for aftertreatment - Google Patents
Commercial car is differential pressure sensor subassembly for aftertreatment Download PDFInfo
- Publication number
- CN205315154U CN205315154U CN201620105973.6U CN201620105973U CN205315154U CN 205315154 U CN205315154 U CN 205315154U CN 201620105973 U CN201620105973 U CN 201620105973U CN 205315154 U CN205315154 U CN 205315154U
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- China
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- sensing device
- pressure difference
- difference sensing
- hoop
- pressure sensor
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Abstract
The utility model provides a commercial car is differential pressure sensor subassembly for aftertreatment, nonrust steel pipe assembly (3), silicone tube (4), silencer hoop (6), catalysis entrapment silencer (1) is fixed under the frame on the airfoil by silencer hoop (6), differential pressure sensor (7) are connected through behind silicone tube (4) and nonrust steel pipe assembly (3) and differential pressure sensor preceding support (5) and the differential pressure sensor support (2), the eccentric 60mm of silencer hoop (6) opening, 4 mounting hole (8) have been arranged to silencer hoop (6) upper end, differential pressure sensor (7) are through the upper end of bolt fastening in silencer hoop (6). The utility model discloses changed the hookup mode and the mounted position of differential pressure sensor and catalysis entrapment silencer, simple structure is compact, and the hookup is reliable reasonable, effective the cost is reduced not only, the better performance requirement that has satisfied commercial car differential pressure sensor for the aftertreatment moreover.
Description
Technical field
The utility model relates to automobile aftertreatment correlation technique, is specially a kind of commercial car aftertreatment pressure difference sensing device assembly.
Background technology
Yuchai state four engine EGR after-treatment system adopts POC+DOC design, and the pressure difference sensing device of this system has two sockets, by with silicone tube, get gas steel pipe and be connected and measure the pressure drop of EGR inlet mouth and air outlet. EGR utilizes this pressure drop to calculate the EGR gas flow entering inlet valve. This calculation result is for determining the location of instruction of EGR valve, thus controls to enter the flow of the EGR gas of engine.
The assembling of usual pressure difference sensing device, need to punch at vehicle frame breadth, then it is assemblied in frame inside by fixing support, concrete position of installing need to trap the position of sourdine according to catalysis and determine, and therefore pressure difference sensing device assembling state is difficult to unified, and destroys the intensity of vehicle frame, cause pressure difference sensing device turnover gas joint steel pipe and pipeline state unreasonable, joint is complicated, and efficiency of assembling is not high yet, there is the irrational problem of design. In addition, the fixing use steel band type hoop of catalysis trapping sourdine, is also easy to cause pressure difference sensing device to damage, and product appearance and product consistence also are difficult to ensure simultaneously.
Summary of the invention
The utility model is in order to for solving the problems of the technologies described above, it is provided that a kind of commercial car aftertreatment pressure difference sensing device assembly.
The technical solution of the utility model is: a kind of commercial car aftertreatment pressure difference sensing device assembly, comprises vehicle frame, it is characterised in that: under vehicle frame, aerofoil is fixedly connected with catalysis trapping sourdine (1) by sourdine hoop (6); Sourdine hoop (6) upper end is furnished with 4 open holess, for fixing pressure difference sensing device (7); Pressure difference sensing device (7) is connected with bearing (5) before pressure difference sensing device and pressure difference sensing device rear support (2) respectively by stainless steel pipe assembly (3); Before pressure difference sensing device, bearing (5) and pressure difference sensing device rear support (2) are separately fixed in catalysis trapping sourdine (1).
Further improvement is: bearing (5) and be also provided with silicone tube (4) between pressure difference sensing device rear support (2) and stainless steel pipe assembly (3) before pressure difference sensing device.
Further improvement is: described stainless steel pipe assembly (3) is shaping pipe fitting, thickness of steel pipe 1mm. Further improvement is: silicone tube (4) is shaping silicone tube.
Further improvement is: the eccentric 60mm of sourdine hoop (6) opening, sourdine hoop (6) upper end is furnished with 4 open holess, for fixing pressure difference sensing device (7).
Useful effect:
Mounting arrangement of the present utility model makes POC+DOC design attractive in appearance, wire harness moves towards rationally smooth and easy, vehicle frame hole bit specifications, the utility model is on the basis ensureing pressure difference sensing device matching requirements and technical requirements, change the situation that assembling state determined by conventional pressure difference sensing device according to the position of catalysis trapping sourdine, have also been changed the situation of punching on vehicle frame in the past, again the fixing hoop of optimization design catalysis trapping sourdine, make pressure difference sensing device and stainless steel pipe assembly and silicone tube can realize batch production, not only compact construction is attractive in appearance, and reduce assembly difficulty.
The eccentric 60mm of sourdine hoop (6) opening, sourdine hoop (6) upper end is furnished with 4 open holess, for fixing pressure difference sensing device (7), the general assembly of pressure difference sensing device assembly can be realized, effectively improve efficiency of assembling, ensure that quality product and technical requirements, outward appearance and product consistence have also been obtained and significantly improve.
Stainless steel pipe assembly (3) is shaping pipe fitting, silicone tube (4) is shaping silicone tube, it is possible to realizes batch production, avoids the situation that conventional scene bends, reduce production cost, it is to increase assembling speed; Thickness of steel pipe 1mm, ensure that intensity also saves material.
Accompanying drawing explanation
Fig. 1 is pressure difference sensing device component assembling schematic diagram;
Fig. 2 is sourdine hoop schematic diagram;
Fig. 3 is that sourdine hoop A is to schematic diagram;
Fig. 4 is silicone tube schematic diagram;
Fig. 5 is stainless steel pipe assembly schematic diagram;
Shown in figure: 1 is catalysis trapping sourdine, and 2 is pressure difference sensing device rear support, and 3 is stainless steel pipe assembly, and 4 is silicone tube, and 5 is bearing before pressure difference sensing device, and 6 is sourdine hoop, and 7 is pressure difference sensing device, and 8 is open holes.
Embodiment
The utility model is as shown in Fig. 1/2/3/4/5.
A kind of commercial car aftertreatment pressure difference sensing device assembly, comprises vehicle frame, is fixedly connected with catalysis trapping sourdine (1) by sourdine hoop (6) under vehicle frame on aerofoil; Sourdine hoop (6) upper end is furnished with 4 open holess, for fixing pressure difference sensing device (7); Pressure difference sensing device (7) is connected with bearing (5) before pressure difference sensing device and pressure difference sensing device rear support (2) respectively by stainless steel pipe assembly (3); Before pressure difference sensing device, bearing (5) and pressure difference sensing device rear support (2) are separately fixed in catalysis trapping sourdine (1).
Bearing (5) and be also provided with silicone tube (4) between pressure difference sensing device rear support (2) and stainless steel pipe assembly (3) before pressure difference sensing device.
Described stainless steel pipe assembly (3) is shaping pipe fitting, thickness of steel pipe 1mm.
Silicone tube (4) is shaping silicone tube.
The eccentric 60mm of sourdine hoop (6) opening, sourdine hoop (6) upper end is furnished with 4 open holess, for fixing pressure difference sensing device (7).
Claims (5)
1. a commercial car aftertreatment pressure difference sensing device assembly, comprises vehicle frame, it is characterised in that: under vehicle frame, aerofoil is fixedly connected with catalysis trapping sourdine (1) by sourdine hoop (6);Sourdine hoop (6) upper end is furnished with 4 open holess, for fixing pressure difference sensing device (7); Pressure difference sensing device (7) is connected with bearing (5) before pressure difference sensing device and pressure difference sensing device rear support (2) respectively by stainless steel pipe assembly (3); Before pressure difference sensing device, bearing (5) and pressure difference sensing device rear support (2) are separately fixed in catalysis trapping sourdine (1).
2. a kind of commercial car aftertreatment pressure difference sensing device assembly according to claim 1, it is characterised in that: bearing (5) and be also provided with silicone tube (4) between pressure difference sensing device rear support (2) and stainless steel pipe assembly (3) before pressure difference sensing device.
3. a kind of commercial car aftertreatment pressure difference sensing device assembly according to claim 1 and 2, it is characterised in that: described stainless steel pipe assembly (3) is shaping pipe fitting, thickness of steel pipe 1mm.
4. a kind of commercial car aftertreatment pressure difference sensing device assembly according to claim 2, it is characterised in that: silicone tube (4) is shaping silicone tube.
5. a kind of commercial car aftertreatment pressure difference sensing device assembly according to claim 1, it is characterised in that: the eccentric 60mm of sourdine hoop (6) opening, sourdine hoop (6) upper end is furnished with 4 open holess (8), for fixing pressure difference sensing device (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105973.6U CN205315154U (en) | 2016-02-03 | 2016-02-03 | Commercial car is differential pressure sensor subassembly for aftertreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105973.6U CN205315154U (en) | 2016-02-03 | 2016-02-03 | Commercial car is differential pressure sensor subassembly for aftertreatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205315154U true CN205315154U (en) | 2016-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620105973.6U Expired - Fee Related CN205315154U (en) | 2016-02-03 | 2016-02-03 | Commercial car is differential pressure sensor subassembly for aftertreatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205315154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035572A (en) * | 2016-02-03 | 2017-08-11 | 东风神宇车辆有限公司 | Pressure difference sensing device assembly is used in a kind of commercial car post processing |
-
2016
- 2016-02-03 CN CN201620105973.6U patent/CN205315154U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035572A (en) * | 2016-02-03 | 2017-08-11 | 东风神宇车辆有限公司 | Pressure difference sensing device assembly is used in a kind of commercial car post processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shiyan City, Hubei province 442000 Industrial District Jetta Road No. 7 Patentee after: DONGFENG HUASHEN MOTOR Co.,Ltd. Address before: Shiyan City, Hubei province 442000 Industrial District Jetta Road No. 7 Patentee before: DONGFENG SHENYU VEHICLE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20220203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |