Inlet end cone assembly

Abstract

An air inlet end cone assembly includes an air inlet end cone and a plurality of vanes. The air inlet end cone is provided with an air inlet housing including an air inlet, an air outlet and an airflow cavity. The vanes are located in the airflow cavity. The vanes include a first vane, a second vane and a third vane. The first vane is provided with a first base and a first vane portion, the first base being provided with a first window and a first fin. The second vane is provided with a second base and a second vane portion. The third vane is fixed to a side of the second vane opposite to the air outlet. The first vane, the second vane and the third vane are used to disturb the exhaust gas entering the airflow cavity from the air inlet, so as to uniformly flow the exhaust gas from the air outlet to an end surface of a downstream carrier.

Description

Technical Field

[0001] This utility model relates to an intake end cone assembly, belonging to the field of engine exhaust aftertreatment technology. Background Technology

[0002] In related technologies, the intake end cone assembly typically includes an intake end cone and a guide vane fixed in the intake end cone, the guide vane being used to guide the exhaust gas to the end face of the downstream carrier.

[0003] However, there is still room for improvement in the uniformity of exhaust gas as it is guided to the end face of the downstream carrier in the relevant technologies. Utility Model Content

[0004] The purpose of this invention is to provide an inlet cone assembly that can improve the uniformity of airflow.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an air intake cone assembly, comprising an air intake cone and a plurality of guide vanes fixed in the air intake cone, wherein the air intake cone is provided with an air intake housing, the air intake housing including an air inlet, an air outlet, and an airflow cavity connecting the air inlet and the air outlet; the guide vanes are located in the airflow cavity, and the guide vanes include a first guide vane, a second guide vane, and a third guide vane, wherein the first guide vane is provided with a first base and a first guide portion extending obliquely from the first base toward the air outlet. The first base is provided with a first opening and a first fin that extends obliquely towards the air outlet corresponding to the first opening; the second guide vane is provided with a second base and a second guide portion that extends obliquely from the second base towards the air outlet; the third guide vane is fixed to the side of the second guide vane facing away from the air outlet; the first guide vane, the second guide vane and the third guide vane are all used to turbulent the exhaust gas entering the airflow cavity from the air inlet so as to make the exhaust gas flow evenly from the air outlet to the end face of the downstream carrier.

[0006] As a further improvement of the present invention, the first fin is integrally stamped from the first base, and the first window is formed by stamping the first fin.

[0007] As a further improvement of the present invention, the first window is connected to the airflow cavity, and the first fin is used to guide the exhaust gas flowing in from the first window to the air outlet.

[0008] As a further improvement of the present invention, the first base includes a first vertical portion, a first inclined portion connected to the first vertical portion, and a second vertical portion connected to the first inclined portion; the first guide portion is connected to the second vertical portion.

[0009] As a further improvement of the present invention, the first window is provided on the first inclined part.

[0010] As a further improvement of the present invention, the second vertical part is also provided with a second fin integrally stamped from the second vertical part toward the air outlet and a second window corresponding to the second fin. The second window is connected to the airflow cavity, and the second fin is used to guide the exhaust gas flowing in from the second window to the air outlet.

[0011] As a further improvement of this utility model, the second base extends in the vertical direction.

[0012] As a further improvement of the present invention, the third guide plate is fixed to the second base and the second guide portion.

[0013] As a further improvement of this utility model, the third guide vane consists of two pieces arranged at intervals.

[0014] As a further improvement of this utility model, the axis of the air inlet is inclined relative to the axis of the air outlet.

[0015] Compared to existing technologies, the inlet cone assembly of this utility model includes a first guide vane, a second guide vane, and a third guide vane. The first guide vane has a first base and a first guide portion extending obliquely from the first base toward the outlet. The first base has a first opening and a first fin corresponding to the first opening and extending obliquely toward the outlet. The second guide vane has a second base and a second guide portion extending obliquely from the second base toward the outlet. The third guide vane is fixed to the side of the second guide vane facing away from the outlet. The first guide vane, the second guide vane, and the third guide vane are all used to turbulent the exhaust gas entering the airflow cavity from the inlet to uniformly direct the exhaust gas from the outlet to the end face of the downstream carrier. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of one embodiment of the exhaust gas aftertreatment device of this utility model.

[0017] Figure 2 yes Figure 1 The left view.

[0018] Figure 3 It is along Figure 2 A cross-sectional view of line AA in the middle.

[0019] Figure 4 This is a three-dimensional schematic diagram of the intake end cone assembly of this utility model in one embodiment.

[0020] Figure 5 yes Figure 4 A three-dimensional diagram from another angle.

[0021] Figure 6 This is a partial exploded perspective view of the intake cone assembly of this utility model.

[0022] Figure 7 yes Figure 6 A partial 3D exploded view from another angle.

[0023] Figure 8 yes Figure 7 A three-dimensional schematic diagram of the first, second, and third guide vanes in the image. Detailed Implementation

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Where several specific embodiments exist, features in these embodiments can be combined with each other without conflict. When the description relates to the drawings, unless otherwise stated, the same numbers or symbols in different drawings represent the same or similar elements. The content described in the following exemplary embodiments does not represent all embodiments of this utility model; rather, they are merely examples of products consistent with this utility model and as described in the claims.

[0025] The terminology used in this invention is for the purpose of describing specific embodiments only and is not intended to limit the scope of protection of this invention. It should be understood that terms such as "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish the features.

[0026] Please refer to Figures 1 to 8 As shown, this utility model discloses an exhaust gas aftertreatment device 100, which includes an intake end cone assembly 200 and a carrier assembly 300 connected to the intake end cone assembly 200.

[0027] The carrier assembly 300 includes a housing 301, a liner 302, and a carrier 303. The liner 302 is used to encapsulate the carrier 303 within the housing 301.

[0028] The intake cone assembly 200 includes an intake cone 1 and a plurality of guide vanes 2 fixed in the intake cone 1. The intake cone 1 is provided with an intake housing 11, which includes an intake port 111, an outlet 112, and an airflow cavity 113 connecting the intake port 111 and the outlet 112. The intake housing 11 can be an integral structure or a split structure. In the embodiment illustrated in this utility model, the axis of the intake port 111 is inclined relative to the axis of the outlet 112, that is, the axis of the intake port 111 is not perpendicular to the axis of the outlet 112.

[0029] The guide vane 2 is located in the airflow cavity 113. The guide vane 2 includes a first guide vane 21, a second guide vane 22, and a third guide vane 23. The first guide vane 21 has a first base 211 and a first guide portion 212 extending obliquely from the first base 211 toward the air outlet 112. The first base 211 has a first opening 2114 and a first fin 2115 corresponding to the first opening 2114 and extending obliquely toward the air outlet 112.

[0030] The second guide vane 22 is provided with a second base 221 and a second guide portion 222 extending obliquely from the second base 221 toward the air outlet 112.

[0031] The third guide vane 23 is fixed to the side of the second guide vane 22 that is opposite to the air outlet 112.

[0032] The first guide vane 21, the second guide vane 22 and the third guide vane 23 are all used to turbulent the exhaust gas entering the airflow cavity 113 from the air inlet 111 so that the exhaust gas flows evenly from the air outlet 112 to the end face of the downstream carrier 303.

[0033] Specifically, in the embodiment illustrated in this utility model, the first base 211 includes a first vertical portion 2111, a first inclined portion 2112 connected to the first vertical portion 2111, and a second vertical portion 2113 connected to the first inclined portion 2112; the first guide portion 212 is connected to the second vertical portion 2113. In the embodiment illustrated in this utility model, the first opening 2114 is disposed on the first inclined portion 2112. The first fin 2115 is integrally stamped from the first base 211, and the first opening 2114 is formed by stamping the first fin 2115. The first opening 2114 communicates with the airflow cavity 113, and the first fin 2115 is used to guide the exhaust gas flowing in from the first opening 2114 to the air outlet 112.

[0034] In the embodiment illustrated in this utility model, the second vertical part 2113 is further provided with a second fin 2116 integrally stamped from the second vertical part 2113 toward the air outlet 112 and a second window 2117 corresponding to the second fin 2116. The second window 2117 is connected to the airflow cavity 113, and the second fin 2116 is used to guide the exhaust gas flowing in from the second window 2117 to the air outlet 112.

[0035] The second base 221 extends in a vertical direction.

[0036] The third guide vane 23 is fixed to the second base 221 and the second guide portion 222. In the embodiment illustrated in this utility model, there are two third guide vanes 23 arranged at intervals.

[0037] In the embodiment illustrated in this utility model, the first guide vane 21 and the second guide vane 22 are arranged at intervals. The first vertical portion 2111, the second vertical portion 2113, and the second base portion 221 are arranged in a staggered manner along the vertical direction. The first fin 2115, the first guide portion 212, and the second guide portion 222 are stacked in sequence, which helps to improve the uniformity of airflow distribution.

[0038] The first guide vane 21, the second guide vane 22, and the third guide vane 23 of the inlet cone assembly 200 of this utility model are all used to turbulent the exhaust gas entering the airflow cavity 113 from the inlet 111. They can adjust the direction of the airflow in the airflow cavity 113, reduce the intensity and distribution of the swirling flow, and thus enable the exhaust gas to flow evenly from the outlet 112 to the end face of the downstream carrier 303.

[0039] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of this specification should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. An intake end cone assembly, characterized in that, The device includes an air inlet cone and several guide vanes fixed within the air inlet cone. The air inlet cone has an air inlet housing, which includes an air inlet, an air outlet, and an airflow cavity connecting the air inlet and the air outlet. The guide vanes are located within the airflow cavity and include a first guide vane, a second guide vane, and a third guide vane. The first guide vane has a first base and a first guide portion extending obliquely from the first base toward the air outlet. The first base has a first opening and a first fin corresponding to the first opening and extending obliquely toward the air outlet. The second guide vane has a second base and a second guide portion extending obliquely from the second base toward the air outlet. The third guide vane is fixed to the side of the second guide vane facing away from the air outlet. The first, second, and third guide vanes are all used to turbulent the exhaust gas entering the airflow cavity from the air inlet so that the exhaust gas flows evenly from the air outlet to the end face of the downstream carrier.

2. The intake cone assembly as described in claim 1, characterized in that: The first fin is integrally stamped from the first base, and the first window is formed by stamping the first fin.

3. The intake cone assembly as described in claim 2, characterized in that: The first opening is connected to the airflow cavity, and the first fin is used to guide the exhaust gas flowing in from the first opening to the air outlet.

4. The intake cone assembly as described in claim 1, characterized in that: The first base includes a first vertical portion, a first inclined portion connected to the first vertical portion, and a second vertical portion connected to the first inclined portion; the first guide portion is connected to the second vertical portion.

5. The intake cone assembly as described in claim 4, characterized in that: The first window is located on the first inclined portion.

6. The intake cone assembly as described in claim 4, characterized in that: The second vertical section is also provided with a second fin integrally stamped from the second vertical section toward the air outlet and a second window corresponding to the second fin. The second window is connected to the airflow cavity, and the second fin is used to guide the exhaust gas flowing in from the second window to the air outlet.

7. The intake end cone assembly as described in claim 1, characterized in that: The second base extends in a vertical direction.

8. The intake cone assembly as described in claim 1, characterized in that: The third guide vane is fixed to the second base and the second guide portion.

9. The intake cone assembly as described in claim 8, characterized in that: There are two third guide vanes, which are spaced apart.

10. The intake end cone assembly as described in any one of claims 1 to 9, characterized in that: The axis of the air inlet is inclined relative to the axis of the air outlet.

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