CN203532025U - Three-way catalytic converter with self-locking fixing structure - Google Patents
Three-way catalytic converter with self-locking fixing structure Download PDFInfo
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- CN203532025U CN203532025U CN201320606175.8U CN201320606175U CN203532025U CN 203532025 U CN203532025 U CN 203532025U CN 201320606175 U CN201320606175 U CN 201320606175U CN 203532025 U CN203532025 U CN 203532025U
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- stainless steel
- carrier
- self
- locking fixing
- paillon foil
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Abstract
Provided is a three-way catalytic converter with a self-locking fixing structure. The three-way catalytic converter with the self-locking fixing structure comprises a shell (1) and a carrier (2) installed in the shell (1), and is characterized in that the carrier (2) is formed by wavy stainless steel foil sheets (4) coated with catalyst coatings, and flat stainless foil sheets (5) coated with catalyst coatings in an alternate winding mode, grooves (3b) are formed in the wavy stainless steel foil sheets (4) and the flat stainless foil sheets (5), and can be combined in a buckling mode, grooves (3a) are formed in the shell (1) in a pressing mode in the circumferential direction, the grooves (3a) and the grooves (3b) formed in the outermost side of the carrier (2) are combined in a buckling mode, and hole shrinkage processing is adopted for the shell (1) so that the carrier (2) can be fixedly arranged in the shell (1). According to the three-way catalytic converter with the self-locking fixing structure, due to the fact that the stainless steel shell with the groove-shaped design and the stainless steel carrier with the groove-shaped design are adopted, the three-way catalytic converter with the self-locking fixing structure has the advantages that the self-locking fixation function is achieved, heat resistance performance and mechanical shock resistance performance are high, dynamic performance of fluid can be improved, transmission efficiency of heat and transmission efficiency of flow under the condition of the lower heat capacity can be improved, influence on exhaust back pressure is small, and the three-way catalytic converter with the self-locking fixing structure can be integrated with an exhaust system and a muffler.
Description
Technical field
The utility model relates to auto-emission control field, particularly ternary catalyzing unit field.
Background technique
Environmental pollution is now day by day serious, and every country is also accordingly more and more stricter to the restriction of motor vehicle exhaust emission.In order to reach the exhaust emission standard of regulation, ternary catalyzing unit has become the vitals of automobile exhaust system.As most important outer purifier in automobile exhaust system; the harmful gases such as HC, the CO that it can be discharged vehicle exhaust, NOx are oxidized by catalyzer and reduction changes harmless carbon dioxide, water and nitrogen into; thereby the harmful gas that automobile is discharged through outlet pipe is purified, environmental protection is being brought into play to effect greatly.
Conventionally, ternary catalyzing unit is comprised of shell, liner and the carrier that scribbles catalyzer, carrier is with being encapsulated in shell after liner parcel, general catalyst converter surface of shell is smooth, and the frictional force between liner is little, can there is play in carrier in the process of automobile running in housing, thereby affect the performance of ternary catalyzing unit.In order to prevent carrier play in housing, several schemes have been proposed in published model utility or utility model patent, the Chinese utility model patent < < ternary catalyzing unit > > that is 201020547523.5 as the patent No. proposes to be provided with the decorative pattern of surface of shell roughness on the internal surface of housing, can effectively prevent the play of carrier, make carrier and housing in conjunction with more stable; The patent No. is Chinese utility model patent < < ternary catalyzing unit > > of 201020129980.2 intervolving the cylindrical shell top sides edge of moulding and bottom sides along being formed with to the flange of housing axis bending, can effectively prevent from sliding in the shell of carrier after coiling; The patent No. is that the ternary catalyzing unit > > of a Chinese utility model patent < < housing two ends undergauge of 201120017549.3 has carried out undergauge processing by the two ends of housing, make the combination of liner and carrier tightr, can guarantee that catalyst converter is used after a period of time carrier loosening etc.Current disclosed technical paper and patent are that housing or liner are processed to prevent carrier play substantially, for the anti-slip measure of metallic carrier, almost do not have.
model utility content
The utility model provides a kind of self-locking fixed function that has, and can effectively prevent the ternary catalyzing unit sliding between carrier and housing.
A kind of ternary catalyzing unit with self-locking fixing knot structure, comprise housing, be arranged on the carrier in housing, it is characterized in that: described carrier is that the waveform stainless steel paillon foil that scribbles catalyst coat forms with alternate the intervolving of planar-shaped stainless steel paillon foil that scribbles catalyst coat, and waveform stainless steel paillon foil and planar-shaped stainless steel paillon foil have the groove being interlocked, housing also has the groove along circumferential position compacting, and this groove and the outermost groove of carrier are interlocked; Described housing is to make described carrier be fixed on the undergauge structure in described housing.
Take above-mentioned technological method, housing and carrier material are stainless steel, both thermal expansion coefficient approach, than ceramic monolith in the past, while having avoided range of temperature larger, because the thermal expansion coefficient of carrier and housing differs compared with causing greatly gap therebetween to increase, for preventing that carrier from needing interpolation liner at enclosure interior generation play; Can be according to user demand by direct welding catalyst converter to change its size, be easy to be integrated in vent systems and silencing apparatus.Carrier is Beehive metal carrier, and wall thickness is thinner, makes pressure drop less, and geometric area increases, and can design higher order number; Have higher thermal conductivity and lower thermal capacitance, temperature raises more rapidly and evenly, without " hot spot ", occurs; Air clearance between carrier and housing has heat-blocking action, makes catalyst converter have higher operating temperature; Carrier material is stainless steel, and heat resistanceheat resistant performance and mechanical resistance pinking are strong.The design of the projection of housing and carrier relevant position/groove shape can provide self-locking fixed function, avoids carrier play in installation and working procedure; Groove can make fluid turn to, and forms eddy current, and the agitation of eddy current has improved dynamic performance and the pass traffic speed of fluid, increases area of contact and the extent of reaction of fluid and catalyzer, and little on back pressure impact, makes catalytic conversion efficiency higher.
The sectional shape of described housing can be circle or ellipse or rectangle, can according to different applicable situations, select the catalyst converter of different sectional shapes, applied widely.
The hole count that described carrier had per square inch, order number is 80-500, with respect to ceramic monolith, its order number is higher, can reduce the volume of catalyst converter, in practical application, according to real needs, selects suitable order number.
Described waveform stainless steel paillon foil and described planar-shaped stainless steel paillon foil interfix by spot welding method, spot welding has low cost, workpiece deformation is little, welding speed is fast, without advantages such as scolders, use spot welding to weld waveform stainless steel paillon foil and planar-shaped stainless steel paillon foil, can make carrier there is better mechanical shock resistance and durability.
The height of the groove of described waveform stainless steel paillon foil and planar-shaped stainless steel paillon foil is the 20%-50% of waveform stainless steel paillon foil height, because different fuel fire emission composition is different, adopt the groove of different heights can make fluid produce suitable eddy current, promote the dynamic performance of fluid, thereby improve the catalytic performance of catalyst converter.
Ternary catalyzing unit of the present utility model have advantages of carrier fixing more reliable, transformation efficiency is higher.The ternary catalyzing unit of this structural type also has the dynamic performance that improves fluid simultaneously, under low heat capacity condition, improve the transmission efficiency of heat and flow, little on exhaust back pressure impact, heat resistanceheat resistant performance and mechanical resistance pinking are strong, are easy to be integrated into the medium advantage of vent systems and silencing apparatus.The utlity model has in addition simple in structure, the advantage such as volume is little, cost is low, the life-span is long, reliable performance.
accompanying drawing explanation
Fig. 1 is for adopting the ternary catalyzing unit schematic diagram of groove shape design;
Fig. 2 is the groove shape partial schematic diagram of carrier;
Label title in Fig. 1 and Fig. 2: 1. housing, 2. carrier, 3. groove, the groove of 3a. housing, the groove of 3b. waveform stainless steel paillon foil and planar-shaped stainless steel paillon foil, 4. waveform stainless steel paillon foil, 5. stainless steel paillon foil dividing plate.
Embodiment
Shown in Fig. 1 and Fig. 2, the utility model is a kind of ternary catalyzing unit with self-locking fixing knot structure, comprise housing 1, be arranged on the carrier 2 in housing 1, it is characterized in that: described carrier 2 forms with planar-shaped stainless steel paillon foil 5 alternate the intervolving that scribble catalyst coat for scribbling the waveform stainless steel paillon foil 4 of catalyst coat, and waveform stainless steel paillon foil 4 has along circumferential groove 3b with planar-shaped stainless steel paillon foil 5, and their groove 3b is interlocked each other.Housing 1 also has the groove 3a along circumferential position compacting, and this groove 3a and the outermost groove 3b of carrier 2 are interlocked; Described housing 1 takes undergauge to process, and described carrier 2 is fixed in described housing 1.
Ternary catalyzing unit of the present utility model has self-locking fixing knot structure, heat resistanceheat resistant performance and mechanical resistance pinking are strong, and hydrodynamic performance is good, and under low heat capacity condition, the transmission efficiency of heat and flow is high, exhaust back pressure impact is little, is easy to be integrated into the medium advantage of vent systems and silencing apparatus.
Claims (5)
1. a ternary catalyzing unit with self-locking fixing knot structure, comprise housing (1), be arranged on the carrier (2) in housing (1), it is characterized in that: described carrier (2) forms with alternate the intervolving of planar-shaped stainless steel paillon foil (5) that scribbles catalyst coat for scribbling the waveform stainless steel paillon foil (4) of catalyst coat, and waveform stainless steel paillon foil (4) has with planar-shaped stainless steel paillon foil (5) groove (3b) being interlocked, housing (1) also has along the groove (3a) of circumferential position compacting, and this groove (3a) is interlocked with the outermost groove of carrier (2) (3b), described housing (1) is for to make described carrier (2) be fixed on the undergauge structure in described housing (1).
2. the ternary catalyzing unit with self-locking fixing knot structure according to claim 1, is characterized in that: the sectional shape of described housing (1) is circle or ellipse or rectangle.
3. the ternary catalyzing unit with self-locking fixing knot structure according to claim 1, is characterized in that: the hole count that described carrier (2) had per square inch, order number is 80-500.
4. the ternary catalyzing unit with self-locking fixing knot structure according to claim 1, is characterized in that: described waveform stainless steel paillon foil (4) interfixes by spot welding method with described planar-shaped stainless steel paillon foil (5).
5. the ternary catalyzing unit with self-locking fixing knot structure according to claim 1, is characterized in that: described waveform stainless steel paillon foil (4) is the 20%-50% of waveform stainless steel paillon foil (4) height with the height of the groove of planar-shaped stainless steel paillon foil (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320606175.8U CN203532025U (en) | 2013-09-29 | 2013-09-29 | Three-way catalytic converter with self-locking fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320606175.8U CN203532025U (en) | 2013-09-29 | 2013-09-29 | Three-way catalytic converter with self-locking fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532025U true CN203532025U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320606175.8U Expired - Fee Related CN203532025U (en) | 2013-09-29 | 2013-09-29 | Three-way catalytic converter with self-locking fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265424A (en) * | 2014-08-11 | 2015-01-07 | 无锡威孚力达催化净化器有限责任公司 | Packaging mold of ternary catalytic converter and packaging method thereof |
| CN106907217A (en) * | 2017-05-08 | 2017-06-30 | 景德镇陶瓷大学 | A kind of narrow gap type ceramic blade exhaust gas cleaner of spiral |
-
2013
- 2013-09-29 CN CN201320606175.8U patent/CN203532025U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265424A (en) * | 2014-08-11 | 2015-01-07 | 无锡威孚力达催化净化器有限责任公司 | Packaging mold of ternary catalytic converter and packaging method thereof |
| CN106907217A (en) * | 2017-05-08 | 2017-06-30 | 景德镇陶瓷大学 | A kind of narrow gap type ceramic blade exhaust gas cleaner of spiral |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING ECOCAT AUTOMOBILE CATALYTIC CONVERTER CO., Free format text: FORMER OWNER: HU GUANG Effective date: 20140421 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140421 Address after: 708 room 100, Haitong building, No. 211106, Qinhuai Road, Jiangning economic and Technological Development Zone, Jiangsu, Nanjing Patentee after: NANJING YIKE KATE AUTOMOBILE CATALYTIC CONVERTERS CO., LTD. Address before: 708, room 100, Haitong building, No. 211106, Qinhuai Road, Jiangning District, Jiangsu, Nanjing Patentee before: Hu Guang |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 708 room 100, Haitong building, No. 211106, Qinhuai Road, Jiangning economic and Technological Development Zone, Jiangsu, Nanjing Patentee after: According to the Nanjing Kekate emission technology Limited by Share Ltd Address before: 708 room 100, Haitong building, No. 211106, Qinhuai Road, Jiangning economic and Technological Development Zone, Jiangsu, Nanjing Patentee before: NANJING YIKE KATE AUTOMOBILE CATALYTIC CONVERTERS CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20200929 |