Collector for EGR cooler

Abstract

The collector for the EGR cooler comprises an air outlet section, a collecting section and a connecting section, the air outlet section, the collecting section and the connecting section are sequentially connected, and the air outlet section, the collecting section and the connecting section are of an integrated structure. The air outlet section is cylindrical, and the connecting section is of a rectangular structure; an arc-shaped transition structure is arranged at the joint of the collecting section and the air outlet section, an arc-shaped transition structure is also arranged at the joint of the collecting section and the connecting section, and a temperature sensor interface and a differential pressure sensor interface are arranged on the collecting section. The cooler has the technical effects that the cooler can be formed by punching a thin plate, the wall thickness is small, the weight is light, the structure is simple, batch production can be realized, the manufacturing cost is low, arc-shaped transition structures are arranged at the joints of the sections, an internal airflow channel is smoother, the advancing resistance of waste gas in the using process is small, the pressure loss of the cooler can be reduced, and the conveying of the waste gas is facilitated; the collecting section is provided with a temperature sensor interface and a differential pressure sensor interface, so that a temperature sensor and a differential pressure sensor can be connected conveniently.

Description

Technical Field

[0001] This utility model relates to the field of EGR system technology, and specifically to a collector for an EGR cooler. Background Technology

[0002] EGR (Exhaust Gas Recirculation) systems are an effective technology for reducing nitrogen oxide emissions from automobiles. The EGR cooler and EGR valve are key components of the EGR system. The EGR cooler effectively cools the high-temperature exhaust gas before transmitting it to the EGR valve for flow regulation, thus achieving efficient utilization of the high-temperature exhaust gas. The collector, located at the outlet of the EGR cooler, serves to deliver the exhaust gas, cooled by the core, to the engine. Existing collectors typically have complex structures, making them difficult to manufacture, and their complex internal airflow channels hinder exhaust gas transport. Utility Model Content

[0003] Therefore, this invention provides a collector for an EGR cooler to solve the above-mentioned problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] According to a first aspect of this utility model, a collector for an EGR cooler includes an outlet section, a collection section, and a connecting section, wherein the outlet section, the collection section, and the connecting section are connected sequentially and are an integral structure; the outlet section is cylindrical, and the connecting section is rectangular; an arc-shaped transition structure is provided at the connection between the collection section and the outlet section, and an arc-shaped transition structure is also provided at the connection between the collection section and the connecting section; the collection section is provided with a temperature sensor interface and a differential pressure sensor interface.

[0006] Furthermore, the collecting section has a rectangular structure, and the air outlet section, the collecting section, and the connecting section are coaxially arranged.

[0007] Furthermore, the collecting section has a conical structure, and the diameter of the end of the collecting section connected to the connecting section is larger than the diameter of the end of the collecting section connected to the air outlet section.

[0008] Furthermore, the air outlet section, the collection section, and the connecting section are arranged coaxially.

[0009] Furthermore, the air outlet section and the collection section are coaxially arranged, and the angle between the axis of the collection section and the axis of the connecting section is greater than 90°.

[0010] Furthermore, the temperature sensor interface is a flanged hole.

[0011] Furthermore, the differential pressure sensor interface is a stamped hole.

[0012] Furthermore, the length of the connecting segment is greater than 4 mm.

[0013] Furthermore, the length of the air outlet section is greater than 3mm.

[0014] Furthermore, the four corners of the connecting segment are rounded.

[0015] This utility model has the following advantages: the entire collector can be formed by stamping thin plates, with thin walls, light weight, and simple structure, which can be mass-produced and has low manufacturing cost. Each section is connected by an arc-shaped transition structure, making the internal airflow channel smoother and reducing the resistance of exhaust gas during use, which can reduce the pressure loss of the cooler and facilitate the transportation of exhaust gas. The collection section is equipped with a temperature sensor interface and a differential pressure sensor interface, which facilitates the connection of temperature sensors and differential pressure sensors. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 A first-view view of a collector for an EGR cooler, provided for some embodiments of the present invention.

[0019] Figure 2 A second perspective view of a collector for an EGR cooler, provided for some embodiments of the present invention.

[0020] Figure 3 A third-view view of a collector for an EGR cooler, provided for some embodiments of the present invention.

[0021] Figure 4A fourth-view view of a collector for an EGR cooler, provided for some embodiments of the present invention.

[0022] Figure 5 A side view of a second collector for an EGR cooler provided for some embodiments of this utility model.

[0023] Figure 6 A side view of a third collector for an EGR cooler provided for some embodiments of this utility model.

[0024] Figure 7 A side view of a fourth collector for an EGR cooler provided for some embodiments of this utility model.

[0025] In the diagram: 1. Exhaust section, 2. Collection section, 3. Connection section, 4. Temperature sensor interface, 5. Differential pressure sensor interface. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1

[0028] like Figures 1 to 7 As shown, a collector for an EGR cooler according to the first aspect embodiment of this utility model includes an exhaust section 1, a collection section 2, and a connecting section 3. The exhaust section 1, collection section 2, and connecting section 3 are connected sequentially and are an integral structure. During use, the connecting section 3 is used to connect with the cooler housing, and its size is determined according to the performance of the cooler. The collection section 2 is used to collect and deliver exhaust gas into the engine, and it is necessary to ensure smooth exhaust gas flow and low pressure difference to reduce the pressure loss of the cooler. The exhaust section 1 is connected to the exhaust flange. The exhaust section 1 is cylindrical, and the connecting section 3 is rectangular. The connection between the collection section 2 and the exhaust section 1 is provided with an arc-shaped transition structure, and the connection between the collection section 2 and the connecting section 3 is also provided with an arc-shaped transition structure. The collection section 2 is provided with a temperature sensor interface 4 and a differential pressure sensor interface 5.

[0029] In this embodiment, it should be noted that the entire collector is made by stamping a thin plate with a thickness of 1.2mm to 2mm, generally a 1.5mm thick thin plate is selected. The four corners of the connecting section 3 are rounded. The temperature sensor interface 4 is a flanged hole or a stamped hole, and the differential pressure sensor interface 5 is a stamped hole or a flanged hole.

[0030] The technical effects achieved by this embodiment are as follows: the entire collector can be formed by stamping thin plates, with thin walls, light weight, and simple structure, which can be mass-produced and has low manufacturing cost. Each section is connected to each other with an arc-shaped transition structure, making the internal airflow channel smoother and reducing the resistance of exhaust gas during use, which can reduce the pressure loss of the cooler and facilitate the transportation of exhaust gas. The collection section 2 is equipped with a temperature sensor interface 4 and a differential pressure sensor interface 5, which facilitates the connection of temperature sensors and differential pressure sensors.

[0031] Example 2

[0032] like Figures 1 to 7 As shown, this embodiment provides another collector for an EGR cooler, the structure of which includes all the contents of Embodiment 1. Only the different parts are described below.

[0033] In this embodiment, as Figures 1 to 4 As shown, the collection section 2 has a rectangular structure with rounded corners. The exhaust section 1, collection section 2, and connecting section 3 are coaxially arranged. During use, the exhaust gas travels in a straight line with less resistance, which is more conducive to the transport of exhaust gas.

[0034] Example 3

[0035] like Figures 1 to 7 As shown, this embodiment provides another collector for an EGR cooler, the structure of which includes all the contents of Embodiment 1. Only the different parts are described below.

[0036] In this embodiment, as Figure 6 and Figure 7 As shown, the collection section 2 has a conical structure. The diameter of the end where the collection section 2 is connected to the connecting section 3 is larger than the diameter of the end where the collection section 2 is connected to the exhaust section 1. The conical structure facilitates the guidance of the exhaust gas direction.

[0037] In this embodiment, it should be noted that, as Figure 6 As shown, the exhaust section 1, collection section 2, and connecting section 3 are coaxially arranged. This structure is suitable when the exhaust end of the EGR cooler is coaxial with the engine intake port. During use, the exhaust gas travels in a straight line, resulting in less resistance and facilitating better exhaust gas delivery; or, as... Figure 7 As shown, the exhaust section 1 and the collection section 2 are coaxially arranged. The angle between the axis of the collection section 2 and the axis of the connecting section 3 is greater than 90°. Specifically, the angle between the axis of the collection section 2 and the axis of the connecting section 3 can be set to 120°, 145° or 160°. This structure is suitable for situations where there is an angle between the exhaust end of the EGR cooler and the engine intake port, which facilitates the installation of connecting pipes.

[0038] Furthermore, such as Figure 5As shown, collection segment 2 can also be configured as an irregular structure.

[0039] Example 4

[0040] like Figures 1 to 7 As shown, this embodiment provides another collector for an EGR cooler, the structure of which includes all the contents of Embodiment 1. Only the different parts are described below.

[0041] In this embodiment, the length of the connecting segment 3 is not less than 4mm. Specifically, the length of the connecting segment 3 can be set to 4mm, 5mm or 6mm, so as to ensure that the overlap length is not less than 4mm, thereby ensuring the welding strength after welding.

[0042] In this embodiment, it should be noted that the length of the air outlet section 1 is not less than 3mm. Specifically, the length of the air outlet section 1 can be set to 4mm, 5mm or 6mm. The end of the air outlet section 1 facing away from the collection section 2 is welded to the air outlet flange.

[0043] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

[0044] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

Claims

1. A collector for an EGR cooler, characterized in that, It includes an outlet section (1), a collection section (2), and a connecting section (3), which are connected in sequence and are an integral structure. The outlet section (1) is cylindrical and the connecting section (3) is rectangular. The connection between the collection section (2) and the outlet section (1) is provided with an arc-shaped transition structure, and the connection between the collection section (2) and the connecting section (3) is also provided with an arc-shaped transition structure. The collection section (2) is provided with a temperature sensor interface (4) and a differential pressure sensor interface (5).

2. A collector for an EGR cooler according to claim 1, characterized in that, The collecting section (2) has a rectangular structure, and the air outlet section (1), the collecting section (2) and the connecting section (3) are coaxially arranged.

3. A collector for an EGR cooler according to claim 1, characterized in that, The collecting section (2) has a conical structure, and the diameter of the end of the collecting section (2) connected to the connecting section (3) is greater than the diameter of the end of the collecting section (2) connected to the air outlet section (1).

4. A collector for an EGR cooler according to claim 3, characterized in that, The air outlet section (1), the collection section (2), and the connecting section (3) are arranged coaxially.

5. A collector for an EGR cooler according to claim 3, characterized in that, The air outlet section (1) and the collection section (2) are coaxially arranged, and the angle between the axis of the collection section (2) and the axis of the connecting section (3) is greater than 90°.

6. A collector for an EGR cooler according to claim 1, characterized in that, The temperature sensor interface (4) is a flanged hole.

7. A collector for an EGR cooler according to claim 1, characterized in that, The differential pressure sensor interface (5) is a punched hole.

8. A collector for an EGR cooler according to claim 1, characterized in that, The length of the connecting segment (3) is greater than 4 mm.

9. A collector for an EGR cooler according to claim 1, characterized in that, The length of the air outlet section (1) is greater than 3 mm.

10. A collector for an EGR cooler according to claim 1, characterized in that, The four corners of the connecting segment (3) are rounded.

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