CN216741694U

CN216741694U - SMC quaternary catalytic converter for gasoline engine

Info

Publication number: CN216741694U
Application number: CN202123183447.1U
Authority: CN
Inventors: 周红军
Original assignee: Wuxi Shanghao Blueprint Environmental Protection Technology Co ltd
Current assignee: Wuxi Shanghao Blueprint Environmental Protection Technology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-06-14
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a SMC quaternary catalytic converter for gasoline engine relates to quaternary catalytic converter technical field. The utility model discloses a casing, SMC carrier ring, first carrier subassembly, second carrier subassembly, third carrier subassembly have been installed in proper order to shells inner wall week side, and first carrier subassembly, second carrier subassembly all are located between SMC carrier ring and the third carrier subassembly, and second carrier subassembly is located between first carrier subassembly and the third carrier subassembly, and third carrier subassembly includes GPF and cover establishes the fender ring, two TWC carrier rings in GPF week side, keeps off the ring and is located between two TWC carrier rings. The utility model discloses a keep off ring and GPF, make tail gas need reach the other end that keeps off the ring through GPF, improve GPF to the seizure ability of tail gas particulate matter.

Description

SMC quaternary catalytic converter for gasoline engine

Technical Field

The utility model belongs to the technical field of quaternary catalytic converter, especially, relate to a SMC quaternary catalytic converter for gasoline engine.

Background

The catalytic converter is a part of an automobile exhaust system, and is an exhaust purification device, also called a catalytic converter, which converts CO, HC, and NOx in exhaust gas into harmless gases to human body by using the action of a catalyst.

The GPF regeneration rate of the conventional SMC quaternary catalytic converter is low, the direct and full catalytic combustion of particulate matters is difficult, and the accumulation of the particulate matters is easy to cause.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a GPF regeneration rate that is used for gasoline engine's quaternary catalytic converter of SMC, has solved current quaternary catalytic converter of SMC is low, is difficult to direct abundant catalytic combustion to the particulate matter, easily causes the accumulational technical problem of particulate matter.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

the utility model provides a four-component catalytic converter of SMC for gasoline engine, which comprises a housin, SMC carrier ring has been installed in proper order to shells inner wall week side, first carrier subassembly, second carrier subassembly, third carrier subassembly, first carrier subassembly, the second carrier subassembly all is located between SMC carrier ring and third carrier subassembly, the second carrier subassembly is located between first carrier subassembly and the third carrier subassembly, third carrier subassembly includes GPF, and the fender ring of cover establishing GPF week side, two TWC carrier rings, it is located between two TWC carrier rings to keep off the ring, TWC carrier ring, keep off ring week side and all install in the inner wall week side of casing.

Optionally, the first carrier assembly includes a first-stage TWC ceramic carrier and two first-stage SMC carriers, the first-stage TWC ceramic carrier being disposed on the inner wall of the housing.

Optionally, the third carrier assembly includes a second-stage SMC carrier disposed on the inner wall of the housing, and two second-stage TWC ceramic carriers, the second-stage SMC carrier being located between the two second-stage TWC ceramic carriers.

Optionally, the casing includes the shell, and the relative both ends of shell have all been installed transition awl section of thick bamboo, and the transition awl section of thick bamboo is kept away from the one end of shell and has been installed the connecting cylinder, and the shell, transition awl section of thick bamboo, connecting cylinder inner wall week all have been installed the radiation shield cover.

Optionally, the thermal sleeve is located on the periphery of the SMC carrier ring, the first carrier assembly, the second carrier assembly, and the third carrier assembly.

Optionally, one end of the connecting cylinder, which is far away from the transition cone cylinder, is provided with a flange.

The embodiment of the utility model has the following beneficial effect:

the utility model discloses an embodiment makes tail gas need reach the other end that keeps off the ring through GPF through keeping off ring and GPF, improves GPF to the seizure ability of tail gas particulate matter, establishes in GPF's week side through two TWC carrier ring covers, and the heat of TWC carrier ring reaction time release improves GPF to the catalytic combustion ability of particulate matter, helps improving GPF's regeneration rate simultaneously.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a in fig. 2.

Wherein the figures include the following reference numerals:

the device comprises a shell 1, a shell 101, a transition cone 102, a connecting cylinder 103, a flange 104, a heat insulation sleeve 105, an SMC carrier ring 2, a primary SMC carrier 3, a primary TWC ceramic carrier 4, a baffle ring 5, a TWC carrier ring 6, a DPF7, a secondary TWC ceramic carrier 8 and a secondary SMC carrier 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

Referring to fig. 1 to 3, in the present embodiment, there is provided an SMC quaternary catalytic converter for a gasoline engine, including: the shell body 1, SMC carrier ring 2 has been installed in proper order to shell body 1 inner wall week side, first carrier subassembly, the second carrier subassembly, the third carrier subassembly, first carrier subassembly, the second carrier subassembly all is located between SMC carrier ring 2 and the third carrier subassembly, the second carrier subassembly is located between first carrier subassembly and the third carrier subassembly, the third carrier subassembly includes GPF7, and the cover is established and is kept off ring 5, two TWC carrier ring 6 in GPF7 week side, keep off ring 5 and be located between two TWC carrier ring 6, keep off ring 5 week side and all install in shell body 1's inner wall week side.

The application of one aspect of the embodiment is as follows: when automobile exhaust passes through the shell 1 and reaches the second carrier component through the first carrier component, the exhaust can reach the third carrier component through GPF7 or the TWC carrier ring 6 at one end of the baffle ring 5, when the exhaust passes through the TWC carrier ring 6 at one end of the baffle ring 5, the exhaust is blocked by the baffle ring 5, so that the exhaust can pass through the baffle ring 5 only through the GPF7 at the middle position of the baffle ring 5, when the exhaust passes through the baffle ring 5, the exhaust can continue to pass through the GPF7 or the TWC carrier ring 6 at the other end of the baffle ring 5 to reach the third carrier component, and heat released by the TWC carrier ring 6 in reaction is directly and synchronously used for increasing the reaction temperature of the GPF 7.

Through baffle ring 5 and GPF7, make the tail gas need pass through GPF7 and reach the other end of baffle ring 5, improve GPF7 and to the seizure ability of tail gas particulate matter, establish the week side at GPF7 through two TWC carrier ring 6 covers, the heat that TWC carrier ring 6 released when reacting improves GPF7 to the catalytic combustion ability of particulate matter, helps improving GPF 7's regeneration rate simultaneously.

As shown in fig. 2, the first carrier assembly of the present embodiment includes a first-stage TWC ceramic carrier 4 and two first-stage SMC carriers 3 mounted on the inner wall of the casing 1, the first-stage TWC ceramic carrier 4 is located between the two first-stage SMC carriers 3, and the first-stage SMC carrier 3 is a metal sponge carrier, and has the characteristics of high thermal conductivity, high melting point and high strength, so as to reduce the occurrence of the burning phenomenon when the first-stage TWC ceramic carrier 4 directly contacts with the high-temperature exhaust gas, and the first-stage TWC ceramic carrier 4 adopts a thick-wall manner, which greatly improves the yield during installation. The third carrier component comprises a second-stage SMC carrier 9 and two second-stage TWC ceramic carriers 8 which are arranged on the peripheral side of the inner wall of the shell 1, the second-stage SMC carrier 9 is positioned between the two second-stage TWC ceramic carriers 8, holes in the second-stage TWC ceramic carriers 8 are in a straight hole mode, the manufacturing difficulty is reduced, in the particle trapping process, GPF7 captures leaked PM (carbon) particles and S-containing impurities can be combusted in the middle second-stage SMC carrier 9, the first-stage SMC carrier 3 and the second-stage TWC ceramic carriers 8 are made of honeycomb ceramics, and the wall thickness is 4-8 mm.

As shown in fig. 2, the casing 1 of the present embodiment includes a casing 101, transition cone 102 are installed at two opposite ends of the casing 101, a connecting cylinder 103 is installed at one end of the transition cone 102 far from the casing 101, heat insulating sleeves 105 are installed on the inner wall peripheral sides of the casing 101, the transition cone 102 and the connecting cylinder 103, and the aperture of the connection between the transition cone 102 and the casing 101 is larger than the aperture of the connection between the transition cone 103 and the connecting cylinder 103. The insulation sleeve 105 is located on the peripheral side of the SMC carrier ring 2, the first carrier component, the second carrier component, the third carrier component. One end of the connecting cylinder 103, which is far away from the transition conical cylinder 102, is provided with a flange 104, and the MC quaternary catalytic converter is conveniently connected with an exhaust pipe of an automobile through the flange 104.

The above embodiments may be combined with each other.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Claims

1. An SMC quaternary catalytic converter for a gasoline engine, comprising: casing (1), SMC carrier ring (2) have been installed in proper order to casing (1) inner wall week side, first carrier subassembly, second carrier subassembly, third carrier subassembly, first carrier subassembly, second carrier subassembly all is located between SMC carrier ring (2) and third carrier subassembly, second carrier subassembly is located between first carrier subassembly and the third carrier subassembly, third carrier subassembly includes GPF (7), and establish fender ring (5) of establishing GPF (7) week side, two TWC carrier ring (6), fender ring (5) are located between two TWC carrier ring (6), all install in casing (1) inner wall week side in fender ring (5) week side.

2. An SMC quaternary catalytic converter for a gasoline engine as claimed in claim 1, characterized in that the first carrier component comprises a primary TWC ceramic carrier (4) mounted on the inner peripheral side of the casing (1), two primary SMC carriers (3), the primary TWC ceramic carrier (4) being located between the two primary SMC carriers (3).

3. An SMC quaternary catalytic converter for a gasoline engine as in claim 1, characterized in that the third carrier component comprises a secondary SMC-carrier (9) mounted on the inner peripheral side of the casing (1), two secondary TWC ceramic carriers (8), the secondary SMC-carrier (9) being located between the two secondary TWC ceramic carriers (8).

4. An SMC quaternary catalytic converter for a gasoline engine as in claim 1, characterized in that the casing (1) comprises a casing (101), the opposite ends of the casing (101) are provided with transition cone cylinders (102), one end of the transition cone cylinder (102) far away from the casing (101) is provided with a connecting cylinder (103), and the peripheral sides of the inner walls of the casing (101), the transition cone cylinder (102) and the connecting cylinder (103) are provided with heat insulating sleeves (105).

5. An SMC quaternary catalytic converter for a gasoline engine as in claim 4, characterized in that the insulating sleeve (105) is located on the peripheral side of the SMC carrier ring (2), the first carrier component, the second carrier component, the third carrier component.

6. An SMC quaternary catalytic converter for a gasoline engine as in claim 4, characterised in that the end of the connecting cylinder (103) remote from the transition cone (102) is provided with a flange (104).