Novel EGR cooler water pipe transition flange

Abstract

The utility model relates to a novel EGR cooler transition flange which is provided with two ends, one end of the novel EGR cooler transition flange is fixedly connected with an EGR cooler, the other end of the novel EGR cooler transition flange is fixedly connected with a water pipe and is in fluid communication with the water pipe, and the novel EGR cooler transition flange comprises an EGR cooler connecting piece and a flange body. And the EGR cooler connecting piece and the flange body are fixedly connected together. According to the novel EGR cooler water pipe transition flange, the small transition flange between the shell and the water pipe is designed according to the direction and position of the water pipe required in a product structure, connection transition is ingeniously achieved, the welding area and strength are effectively enhanced, meanwhile, the complexity of the water pipe is reduced, manufacturing is more convenient and easier, and the production cost is reduced. The process is more stable, leakage caused by poor welding process due to the structure can be effectively prevented, and the structure has the advantages of being stable and reliable in process, low in cost, simple in structure and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive engine EGR coolers, and particularly relates to a new type of EGR cooler water pipe transition flange. Background Art

[0002] EGR is the abbreviation of Exhaust Gas Recirculation, which is used to reduce the content of NOX in the exhaust gas. As a very important part of the exhaust gas recirculation system in the engine, the EGR cooler can control a certain flow rate of the high-temperature exhaust gas after combustion to exchange heat with the cooling water under the unified coordination of the entire engine system, and reduce the temperature of the high-temperature gas so as to be ready for recycling. A closed space is formed between the outside of the tube core of the EGR cooler and the EGR housing, which is filled with cooling water. According to the layout of the engine, there will be inlet and outlet water pipes at appropriate positions on the housing. Since the housing is relatively thin, about 1 mm, when directly welded to the water pipe, the welding will be insecure due to the small contact area, and the welding quality is poor. At the same time, there is also the situation that the water pipe is bent too much and the structure is complex and difficult to manufacture, resulting in easy leakage and loosening under external force, which also causes leakage problems. Summary of the Invention

[0003] The purpose of the utility model is to solve the defects existing in the prior art, and a new type of EGR cooler transition flange is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a new type of EGR cooler transition flange, the new type of EGR cooler transition flange has two ends, one end is fixedly connected to the EGR cooler, and the other end is fixedly connected to the water pipe and is in fluid communication. The EGR cooler transition flange includes an EGR cooler connector and a flange body, and the EGR cooler connector and the flange body are fixedly connected together.

[0005] In the embodiment of the present application, the EGR cooler connector is fixedly connected to the EGR cooler, and the flange body is fixedly connected to the water pipe.

[0006] In the embodiment of the present application, the EGR cooler connector and the EGR cooler are fixedly connected together by welding, and the EGR cooler connector and the flange body are fixedly connected together by integral molding or welding; the flange body and the water pipe are fixedly connected together by welding.

[0007] In an embodiment of the present application, the EGR cooler connector has a through-hole that penetrates the EGR cooler connector. The flange body has a first opening and a second opening, and the first opening and the second opening are in fluid communication; the through-hole and the first opening are in fluid communication.

[0008] In an embodiment of the present application, the flange body has a first section and a second section. The first opening is formed on the first section, the second opening is formed on the second section, and the first section and the second section are integrally formed.

[0009] In an embodiment of the present application, the EGR cooler connector is fixedly connected to the first section of the flange body, and the EGR cooler connector protrudes from the outer wall of the first section of the flange body.

[0010] In an embodiment of the present application, the EGR cooler connector has a connection surface, and the connection surface is fixedly connected to the EGR cooler together.

[0011] In an embodiment of the present application, the connection surface of the EGR cooler connector and the EGR cooler are fixedly connected together by welding, and there is a first welding layer between the connection surface and the EGR cooler.

[0012] In an embodiment of the present application, the contour of the second opening on the flange body is circular, the water pipe is sleeved in the second opening, and the water pipe and the second section of the flange body are fixedly connected together by welding, and there is a second welding layer between the water pipe and the second section of the flange body.

[0013] In an embodiment of the present application, the first opening of the flange body extends along the length of the first section to form a first water channel, the second opening of the flange body extends along the length of the second section to form a second water channel, and the axis of the first water channel is perpendicular to the axis of the second water channel.

[0014] The beneficial effects of the present application are as follows: The novel EGR cooler water pipe transition flange provided by the present application designs a transition small flange between the housing and the water pipe according to the direction and position of the water pipe required in the product structure, cleverly realizes the connection transition, effectively enhances the welding area and strength, and at the same time reduces the complexity of the water pipe, making it more convenient and easier to manufacture, and the process is more stable. It can effectively prevent the occurrence of leakage caused by poor welding process due to the structure itself, and has the advantages of stable and reliable process, low cost, and simple structure. Description of the Drawings

[0015] Figure 1Schematic diagram of the structure of a new type of EGR cooler water pipe transition flange provided by the present utility model, which is installed together with the EGR cooler.

[0016] Figure 2 Schematic diagram of the structure of a new type of EGR cooler transition flange provided by the present utility model.

[0017] Figure 3 Another schematic diagram of the structure of a new type of EGR cooler transition flange provided by the present utility model, which is installed together with the EGR cooler. Specific embodiments

[0018] The following further details the present application in conjunction with the accompanying drawings through specific embodiments. Similar elements in different embodiments are labeled with related similar element numbers. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification, which is to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and general technical knowledge in the field.

[0019] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be reordered or adjusted in a manner obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a certain embodiment, and do not mean that they are essential components and / or sequences.

[0020] The serial numbers assigned to the components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And the "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connections (couplings).

[0021] Please refer to Figures 1-3 , the present application provides a new type of EGR cooler transition flange. The transition flange 1 has two ends, one end is fixedly connected to the EGR cooler 2, and the other end is fixedly connected to the water pipe 3 and is in fluid communication. The transition flange 1 includes an EGR cooler connector 11 and a flange body 12, and the EGR cooler connector 11 and the flange body 12 are fixedly connected together.

[0022] In an embodiment of the present application, the EGR cooler connecting member 11 and the EGR cooler 2 are fixedly connected, and the flange body 12 and the water pipe 3 are fixedly connected.

[0023] In an embodiment of the present application, the EGR cooler connecting member 11 and the EGR cooler 2 are fixedly connected together by welding, and the EGR cooler connecting member 11 and the flange body 12 are fixedly connected together by integral molding or welding; the flange body 12 and the water pipe 3 are fixedly connected together by welding.

[0024] In an embodiment of the present application, the EGR cooler connecting member 11 has a through hole 110 that penetrates through the EGR cooler connecting member 11. The flange body 12 has a first opening 1210 and a second opening 1220, and the first opening 1210 and the second opening 1220 are in fluid communication; the through hole 110 and the first opening 1210 are in fluid communication.

[0025] In an embodiment of the present application, the flange body 12 has a first section 121 and a second section 122. The first opening 1210 is formed on the first section 121, the second opening 1220 is formed on the second section 122, and the first section 121 and the second section 122 are integrally formed.

[0026] In an embodiment of the present application, the EGR cooler connecting member 11 and the first section 121 of the flange body 12 are fixedly connected, and the EGR cooler connecting member 11 protrudes from the outer wall of the first section 121 of the flange body 12.

[0027] In an embodiment of the present application, the EGR cooler connecting member 11 has a connecting surface 111, and the connecting surface 111 is fixedly connected to the EGR cooler 2.

[0028] In an embodiment of the present application, the connecting surface 111 of the EGR cooler connecting member 11 and the EGR cooler 2 are fixedly connected together by welding, and there is a first welding layer 4 between the connecting surface 111 and the EGR cooler 2.

[0029] In an embodiment of the present application, the contour of the second opening 1220 on the flange body 12 is circular. The water pipe 3 is sleeved in the second opening 1220, and the water pipe 3 and the second section 122 of the flange body 12 are fixedly connected together by welding, and there is a second welding layer 6 between the water pipe 3 and the second section 11 of the flange body 12.

[0030] In one embodiment of the present application, the first opening 1210 of the flange body 12 extends along the length of the first section 121 to form a first water channel, and the second opening 1220 of the flange body 12 extends along the length of the second section 122 to form a second water channel. The axis of the first water channel is perpendicular to the axis of the second water channel.

[0031] The novel EGR cooler water pipe transition flange provided by the present application designs a small transition flange between the housing and the water pipe according to the direction and position of the water pipe required in the product structure, cleverly realizes the connection transition, effectively enhances the welding area and strength, reduces the complexity of the water pipe at the same time, makes the production more convenient and easy, and the process is more stable. It can effectively prevent the occurrence of leakage caused by poor welding process due to the structure itself, and has the advantages of stable and reliable process, low cost, simple structure, etc.

[0032] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A new type of EGR cooler water pipe transition flange, characterized in that, The novel EGR cooler water pipe transition flange has two ends. One end is fixedly connected to the EGR cooler, and the other end is fixedly connected to the water pipe and in fluid communication therewith. The EGR cooler transition flange includes an EGR cooler connector and a flange body, and the EGR cooler connector and the flange body are fixedly connected together.

2. The novel EGR cooler water pipe transition flange according to claim 1, characterized in that, The EGR cooler connector is fixedly connected to the EGR cooler, and the flange body is fixedly connected to the water pipe.

3. The novel EGR cooler water pipe transition flange according to claim 2, characterized in that, The EGR cooler connector and the EGR cooler are fixedly connected together by welding. The EGR cooler connector and the flange body are fixedly connected together by integral molding or welding; the flange body and the water pipe are fixedly connected together by welding.

4. The novel EGR cooler water pipe transition flange according to claim 3, characterized in that, The EGR cooler connector has a through hole that penetrates the EGR cooler connector. The flange body has a first opening and a second opening, and the first opening and the second opening are in fluid communication; the through hole and the first opening are in fluid communication.

5. The novel EGR cooler water pipe transition flange according to claim 4, characterized in that, The flange body has a first section and a second section. The first opening is formed on the first section, the second opening is formed on the second section, and the first section and the second section are integrally formed.

6. The novel EGR cooler water pipe transition flange according to claim 5, characterized in that, The EGR cooler connector is fixedly connected to the first section of the flange body, and the EGR cooler connector protrudes from the outer wall of the first section of the flange body.

7. The novel EGR cooler water pipe transition flange according to claim 6, characterized in that, The EGR cooler connector has a connecting surface that is fixedly connected to the EGR cooler.

8. The novel EGR cooler water pipe transition flange according to claim 7, characterized in that, The connecting surface of the EGR cooler connector and the EGR cooler are fixedly connected together by welding, and there is a first welding layer between the connecting surface and the EGR cooler.

9. The novel EGR cooler water pipe transition flange according to claim 8, characterized in that, The contour of the second opening on the flange body is circular. The water pipe is sleeved in the second opening, and the water pipe and the second section of the flange body are fixedly connected together by welding, and there is a second welding layer between the water pipe and the second section of the flange body.

10. The novel EGR cooler water pipe transition flange according to claim 9, characterized in that, The first opening of the flange body extends along the length of the first section to form a first water channel, and the second opening of the flange body extends along the length of the second section to form a second water channel. The axis of the first water channel is perpendicular to the axis of the second water channel.

Images