CN113738488A - Tail gas aftertreatment subassembly - Google Patents

Tail gas aftertreatment subassembly Download PDF

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Publication number
CN113738488A
CN113738488A CN202111197094.2A CN202111197094A CN113738488A CN 113738488 A CN113738488 A CN 113738488A CN 202111197094 A CN202111197094 A CN 202111197094A CN 113738488 A CN113738488 A CN 113738488A
Authority
CN
China
Prior art keywords
heat shield
cone
heat exchanger
exhaust aftertreatment
separates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111197094.2A
Other languages
Chinese (zh)
Inventor
何文志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tenneco FAWSN Changchun Automobile Parts Co Ltd
Original Assignee
Tenneco FAWSN Changchun Automobile Parts Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tenneco FAWSN Changchun Automobile Parts Co Ltd filed Critical Tenneco FAWSN Changchun Automobile Parts Co Ltd
Priority to CN202111197094.2A priority Critical patent/CN113738488A/en
Publication of CN113738488A publication Critical patent/CN113738488A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells

Abstract

An exhaust aftertreatment component comprises a cylinder body, an aftertreatment carrier and a first cone. The tail gas aftertreatment subassembly still includes the parcel is in first heat exchanger that separates on the barrel, the parcel is in the second that separates on the first cone separates heat exchanger and will first separate heat exchanger with the first ribbon that the second separated heat exchanger was tied up. The first heat shield comprises a first extending convex part extending towards the second heat shield, the second heat shield comprises a second extending convex part extending towards the first heat shield, and the first tying belt fixedly ties the overlapped part of the first extending convex part and the second extending convex part. Compared with the prior art, the first heat shield and the second heat shield are connected through the first binding belt, the first heat shield and the second heat shield do not need to be fixed with the barrel and the first barrel respectively in a welding mode, and installation is simplified.

Description

Tail gas aftertreatment subassembly
Technical Field
The invention relates to a tail gas aftertreatment component, and belongs to the technical field of engine tail gas aftertreatment.
Background
Existing exhaust aftertreatment assemblies typically include a housing and a heat shield welded to the housing. The shell comprises a cylinder body and an end cone. When the heat shield is welded to the housing, the processing cost is high.
Disclosure of Invention
The invention aims to provide an exhaust aftertreatment component with a simpler installation mode.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an exhaust aftertreatment subassembly, its includes the barrel, encapsulates in aftertreatment carrier in the barrel and with the first cone that the barrel links to each other, exhaust aftertreatment subassembly is still including the parcel first heat shield on the barrel, the parcel is in second heat shield on the first cone and incite somebody to action first heat shield with the first ribbon that the second heat shield tied up, first heat shield include to the first convex part that extends of second heat shield, the second heat shield include to the second that extends first heat shield extends the convex part, first extend the convex part with the second extends convex part and overlaps, first ribbon will first extend the convex part with the second extends the part that the convex part overlaps and ties up fixedly.
As a further improved technical scheme of the invention, the first heat shield and the cylinder body are fixed in a non-welding mode.
As a further improved technical scheme of the invention, the second heat shield and the first cone are fixed in a non-welding mode.
As a further improved technical solution of the present invention, the first heat shield includes a first base portion and a first depressed portion connected to the first base portion, the second heat shield includes a second base portion and a second depressed portion connected to the second base portion, the first depressed portion and the second depressed portion overlap each other, and the first tie is tied to the second depressed portion.
As a further improved technical solution of the present invention, the second heat shield includes an end portion connected to the second depressed portion, the end portion protrudes outward from the second depressed portion, and the end portion partially covers the first base portion.
As a further improved technical scheme of the invention, the exhaust gas aftertreatment component comprises a second cone connected with the cylinder and a third heat shield wrapped on the second cone, wherein the first cone and the second cone are respectively connected to two ends of the cylinder; the first heat shield includes a third extended ledge extending toward the third heat shield, the third heat shield includes a fourth extended ledge extending toward the first heat shield, the third extended ledge partially overlapping the fourth extended ledge; the exhaust aftertreatment assembly further comprises a second tie for fixedly tying the overlapped part of the third extending convex part and the fourth extending convex part.
As a further improved technical scheme of the invention, the third heat shield and the second cone are fixed in a non-welding mode.
Compared with the prior art, the first heat shield and the second heat shield are connected through the first binding belt, the first heat shield and the second heat shield do not need to be fixed with the barrel and the first barrel respectively in a welding mode, and therefore installation is simplified and maintenance is facilitated. In addition, the first heat shield and the second heat shield are designed in a split mode, so that modularization/platform design is facilitated, and cost is reduced.
Drawings
FIG. 1 is a schematic perspective view of an exhaust aftertreatment assembly of the present invention in an illustrative embodiment.
Fig. 2 is a partially exploded perspective view of fig. 1.
Fig. 3 is a further exploded perspective view of fig. 2.
Fig. 4 is a schematic sectional view taken along line a-a in fig. 1.
Fig. 5 is a partially enlarged view of circled portion B in fig. 4.
Fig. 6 is a partially enlarged view of circled portion C in fig. 4.
Detailed Description
The following detailed description of the embodiments of the invention will be described in conjunction with the accompanying drawings, in which, if there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the accompanying drawings, like numbers or symbols in different drawings represent the same or similar elements unless otherwise specified. The statements made in the following exemplary embodiments do not represent all embodiments of the present invention, but rather they are merely examples of products consistent with the present invention as recited in the claims of the present invention.
The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention. It should be understood that the use of terms such as "first," "second," and the like, in the description and in the claims of the present invention do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another.
Referring to fig. 1 to 6, the present invention discloses an exhaust gas aftertreatment component, which includes a cylinder 1, an aftertreatment carrier 10 enclosed in the cylinder 1, a first cone 2 connected to one end of the cylinder 1, a second cone 3 connected to the other end of the cylinder 1, a first heat shield 4 wrapped on the cylinder 1, a second heat shield 5 wrapped on the first cone 2, a third heat shield 6 wrapped on the second cone 3, a first tie 7 binding the first heat shield 4 and the second heat shield 5, and a second tie 8 binding the first heat shield 4 and the third heat shield 6. The first cone 2 and the second cone 3 are respectively connected to two ends of the cylinder 1.
The first heat shield 4 includes a first extending projection 41 extending toward the second heat shield 5 and a third extending projection 42 extending toward the third heat shield 6. The second heat shield 5 includes a second extending protrusion 51 extending toward the first heat shield 4, and the third heat shield 6 includes a fourth extending protrusion 61 extending toward the first heat shield 4.
The first extending projection 41 and the second extending projection 51 are partially overlapped, and the first band 7 ties and fixes the overlapped portion of the first extending projection 41 and the second extending projection 51.
The third extending projection 42 and the fourth extending projection 61 are partially overlapped, and the second band 8 binds and fixes the portion where the third extending projection 42 and the fourth extending projection 61 are overlapped with each other.
The first heat shield 4 and the barrel 1 are fixed in a non-welding mode.
The second heat shield 5 is fixed to the first cone 2 in a non-welding manner.
The third heat shield 6 is fixed to the second cone 3 by non-welding.
In particular, the first heat shield 4 comprises a first base 43 and a first dip 44 connected to the first base 43. The second heat shield 5 includes a second base portion 53, a second depressed portion 54 connected to the second base portion 53, and an end portion 55 connected to the second depressed portion 54. The first subsidence part 44 and the second subsidence part 54 are overlapped with each other, and the first band 7 is bound to the second subsidence part 54. Said end portion 55 protrudes outwardly beyond said second sunken portion 54, said end portion 55 partially overlying said first base portion 43.
Compared with the prior art, the first heat shield 4, the second heat shield 5 and the third heat shield 6 of the present invention are respectively wrapped on the cylinder 1, the first cone 2 and the second cone 3 in a non-welding manner. So set up, separate the heat exchanger and change in the installation, reduced the welding that separates the heat exchanger, the cost is reduced and be convenient for maintain. In addition, the first heat shield 4, the second heat shield 5 and the third heat shield 6 adopt a split type design, so that a platform design is easy to realize, and the cost is saved.
The above embodiments are only for illustrating the invention and not for limiting the technical solutions described in the invention, and the understanding of the present specification should be based on the technical personnel in the field, and although the present specification has described the invention in detail with reference to the above embodiments, the technical personnel in the field should understand that the technical personnel in the field can still make modifications or equivalent substitutions to the present invention, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.

Claims (7)

1. The utility model provides an exhaust aftertreatment subassembly, its includes the barrel, encapsulates in aftertreatment carrier in the barrel and with the first cone that the barrel links to each other, its characterized in that: the exhaust aftertreatment subassembly is still including the parcel first heat exchanger that separates on the barrel, the parcel is in second heat exchanger that separates on the first cone and inciting somebody to action first heat exchanger with the first ribbon that the second separated heat exchanger tied up, first heat exchanger that separates includes to the first protruding portion that extends that separates the heat exchanger extension of second, the second separates the heat exchanger including to the second that first heat exchanger that separates extends the protruding portion, first extend the protruding portion with the second extends protruding portion part partial overlap, first ribbon will first extend the protruding portion with the second extends the part that the protruding portion overlaps each other and ties up fixedly.
2. The exhaust aftertreatment assembly of claim 1, wherein: the first heat shield and the barrel are fixed in a non-welding mode.
3. The exhaust aftertreatment assembly of claim 1, wherein: the second heat shield is non-welded to the first cone.
4. The exhaust aftertreatment assembly of claim 1, wherein: the first heat shield comprises a first base portion and a first sinking portion connected with the first base portion, the second heat shield comprises a second base portion and a second sinking portion connected with the second base portion, the first sinking portion and the second sinking portion are overlapped with each other, and the first cable ties are tied on the second sinking portion.
5. The exhaust aftertreatment assembly of claim 4, wherein: the second heat shield includes an end portion connected to the second countersink, the end portion projecting outwardly of the second countersink, the end portion overlying the first base portion.
6. The exhaust aftertreatment assembly of claim 1, wherein: the tail gas aftertreatment component comprises a second cone connected with the cylinder and a third heat insulation cover wrapped on the second cone, and the first cone and the second cone are connected to the two ends of the cylinder respectively; the first heat shield includes a third extended ledge extending toward the third heat shield, the third heat shield includes a fourth extended ledge extending toward the first heat shield, the third extended ledge partially overlapping the fourth extended ledge; the exhaust aftertreatment assembly further comprises a second tie for fixedly tying the overlapped part of the third extending convex part and the fourth extending convex part.
7. The exhaust aftertreatment assembly of claim 6, wherein: the third heat shield and the second cone are fixed in a non-welding mode.
CN202111197094.2A 2021-10-14 2021-10-14 Tail gas aftertreatment subassembly Pending CN113738488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111197094.2A CN113738488A (en) 2021-10-14 2021-10-14 Tail gas aftertreatment subassembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111197094.2A CN113738488A (en) 2021-10-14 2021-10-14 Tail gas aftertreatment subassembly

Publications (1)

Publication Number Publication Date
CN113738488A true CN113738488A (en) 2021-12-03

Family

ID=78726584

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111197094.2A Pending CN113738488A (en) 2021-10-14 2021-10-14 Tail gas aftertreatment subassembly

Country Status (1)

Country Link
CN (1) CN113738488A (en)

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