CN202578807U - Mounting structure for waste gas pressure release valve of engine - Google Patents
Mounting structure for waste gas pressure release valve of engine Download PDFInfo
- Publication number
- CN202578807U CN202578807U CN 201220245901 CN201220245901U CN202578807U CN 202578807 U CN202578807 U CN 202578807U CN 201220245901 CN201220245901 CN 201220245901 CN 201220245901 U CN201220245901 U CN 201220245901U CN 202578807 U CN202578807 U CN 202578807U
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- Prior art keywords
- rack body
- engine
- waste gas
- mounting holes
- mounting structure
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- Expired - Fee Related
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Abstract
The utility model discloses a mounting structure for a waste gas pressure release valve of an engine. The mounting structure comprises a bracket body and two lug bosses arranged on a front cover shell of the engine; the bracket body is a bending sheet metal part and is composed of a trapezoidal bottom surface and a side edge vertically connected with one waist side of the bottom surface; two mounting holes are formed in a lower edge of the bottom surface; the two mounting holes are respectively corresponding to the two lug bosses on the front cover shell of the engine; and two waste gas pressure release valve mounting holes are formed in the side edge and are respectively welded with nuts. The bottom surface of the bracket body is of a trapezoidal shape and the width is gradually reduced from bottom to top, so that the interference during a mounting process is avoided; the lower end of the side edge of the bracket body is corresponding to a central connecting line of the two mounting holes in the bottom surface, so that the waste gas pressure release valve is reliably fixed and the working stability is excellent; and turned edges are respectively arranged on the other waist side of the bracket body and the edge of a lightening hole in the bottom surface, so that the strength and the rigidity of the bracket body are increased.
Description
Technical field
The utility model relates to engine exhaust Decompression valves supporting structure, is specifically related to a kind of small-sized supercharged engine waste gas Decompression valves mounting structure that is used for.
Background technique
For the mini engine that uses exhaust-gas turbocharger, waste gas Decompression valves function is the pressure of gas before and after the contrast pressurized machine, and signal is inputed to ECU, thereby control waste gas gets into the flow of supercharging, avoids the pressurized machine overload.Usually the waste gas Decompression valves is arranged on the engine body, limited space is very big, and waste gas Decompression valves difficult installation needs to use special instrument, can satisfy the Production Line beat, or through bolt that the waste gas Decompression valves is rack-mount.The mounting bracket of existing waste gas Decompression valves is the bending platy structure, and profile is bigger, and strength and stiffness are relatively poor; Be subject to back blast; Bear outwards bigger thrust, and on the mounting bracket two mounting holes respectively through on the boss that is bolted to the engine front housing outside, the bending place of the support distortion that is easy to be stretched like this; In the normal engine speed scope, very easily produce resonance, and cause fracture failure.
Summary of the invention
The purpose of the utility model is to provide a kind of easy for installation to the existing deficiency of mounting structure aspect rigidity Design, and strength and stiffness are good, can stand the mounting structure of the indeformable a kind of engine exhaust Decompression valves of external impacts.
The mounting structure of the described a kind of engine exhaust Decompression valves of the utility model; Comprise rack body, be located at two boss on the engine front housing; It is characterized in that: said rack body is for the bending sheet metal part, by being trapezoidal bottom surface and constituting with the vertical side that links to each other of a waist of bottom surface;
Bottom in the bottom surface of said rack body is provided with two mounting holes, these two mounting holes respectively with said engine front housing on two boss corresponding; Said rack body is connected on the said engine front housing through two bolt;
On the side of said rack body, be provided with two waste gas Decompression valves mounting holes, two waste gas Decompression valves mounting holes and corresponding with a nut respectively welding.
Further, the center line line of two mounting holes on the side lower end of said rack body and the said bottom surface is corresponding; Like this, install and fix more stablely, functional reliability is better.
Further, the bottom of the bottom surface of said rack body is greater than the top; Bottom surface width from top to bottom reduces gradually, interferes when avoiding installing, and also saves material simultaneously, reduces cost.
Further, middle part, the bottom surface of said rack body is provided with lightening hole, with weight reduction.
Further, be respectively equipped with flange at another waist of said rack body and the lightening hole edge of said bottom surface.These flange have played the stiffening rib effect, can improve the strength and stiffness of rack body.
The utility model is compared with existing technology and had the following advantages: because the bottom surface of rack body is trapezoidal, width reduces gradually from top to bottom, thereby interferes when having avoided installation; Because the center line line of two mounting holes on the side lower end of rack body and the bottom surface is corresponding, thereby makes the waste gas Decompression valves fix reliably good operating stability; Owing to be respectively equipped with flange at another waist of rack body and the lightening hole edge of said bottom surface, thereby improved the strength and stiffness of rack body.
Description of drawings
Fig. 1 is the mounting bracket structural representation of existing waste gas Decompression valves;
Fig. 2 is the mounting bracket structural representation of the utility model;
Fig. 3 is the schematic representation that is connected of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Ginseng Fig. 2 and Fig. 3; The mounting structure of described a kind of engine exhaust Decompression valves; Comprise rack body 1, be located at two boss 3 on the engine front housing 2; It is characterized in that: said rack body 1 is for the bending sheet metal part, by being trapezoidal bottom surface 11 and constituting with the vertical side that links to each other 12 of a waist of bottom surface;
Bottom in the bottom surface 11 of said rack body is provided with two mounting hole 5A, 5B, these two mounting holes respectively with said engine front housing 2 on two boss 3 corresponding; Said rack body is connected on the said engine front housing 2 through two bolt;
On the side 12 of said rack body, be provided with two waste gas Decompression valves mounting holes, two waste gas Decompression valves mounting holes and respectively with a nut 4 corresponding welding.
Further, the center line line of two mounting hole 5A on side 12 lower ends of said rack body and the said bottom surface 11,5B is corresponding; Like this, install and fix more stablely, functional reliability is better.
Further, the bottom of the bottom surface 11 of said rack body is greater than the top; Bottom surface width from top to bottom reduces gradually, interferes when avoiding installing, and also saves material simultaneously, reduces cost.
Further, 11 middle parts, bottom surface of said rack body are provided with lightening hole, with weight reduction.
Further, be respectively equipped with flange at another waist of said rack body and the lightening hole edge of said bottom surface 11.These flange have played the stiffening rib effect, can improve the strength and stiffness of rack body.
The utility model reduce the cost of support, and stiffness of support can get a promotion also because the intervention of novel analysis mode CAE makes carriage center remove most material.
Fig. 1 is the mounting bracket of existing waste gas Decompression valves, and its profile is bigger, and strength and stiffness are relatively poor; Be subject to back blast; Bear outwards bigger thrust, and on the mounting bracket two mounting holes 21,22 respectively through on the boss that is bolted to the engine front housing outside, the bending place 23 of the support distortion that is easy to be stretched like this; In the normal engine speed scope, very easily produce resonance, and cause fracture failure.
Claims (5)
1. the mounting structure of an engine exhaust Decompression valves; Comprise rack body (1), be located at two boss (3) on the engine front housing (2); It is characterized in that: said rack body (1) is the bending sheet metal part, by be trapezoidal bottom surface (11) with the vertical side that links to each other of a waist (12) formation of bottom surface;
Bottom in the bottom surface (11) of said rack body (1) is provided with two mounting holes (5A, 5B), these two mounting holes respectively with said engine front housing (2) on two boss (3) corresponding; Said rack body (1) is connected on the said engine front housing (2) through two bolt;
On the side (12) of said rack body (1), be provided with two waste gas Decompression valves mounting holes, two waste gas Decompression valves mounting holes respectively with the corresponding welding of a nut (4).
2. the mounting structure of a kind of engine exhaust Decompression valves according to claim 1 is characterized in that: the center line line of two mounting holes (5A, 5B) on side (12) lower end of said rack body (1) and said bottom surface (11) is corresponding.
3. the mounting structure of a kind of engine exhaust Decompression valves according to claim 1 and 2 is characterized in that: the bottom of the bottom surface (11) of said rack body (1) is greater than the top.
4. the mounting structure of a kind of engine exhaust Decompression valves according to claim 1 and 2 is characterized in that: the middle part, bottom surface (11) of said rack body (1) is provided with lightening hole.
5. the mounting structure of a kind of engine exhaust Decompression valves according to claim 1 and 2 is characterized in that: be respectively equipped with flange at another waist of said rack body (1) and the lightening hole edge of said bottom surface (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220245901 CN202578807U (en) | 2012-05-29 | 2012-05-29 | Mounting structure for waste gas pressure release valve of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220245901 CN202578807U (en) | 2012-05-29 | 2012-05-29 | Mounting structure for waste gas pressure release valve of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202578807U true CN202578807U (en) | 2012-12-05 |
Family
ID=47248228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220245901 Expired - Fee Related CN202578807U (en) | 2012-05-29 | 2012-05-29 | Mounting structure for waste gas pressure release valve of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202578807U (en) |
-
2012
- 2012-05-29 CN CN 201220245901 patent/CN202578807U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20190529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |