CN104329143A - Three-way catalytic converter - Google Patents
Three-way catalytic converter Download PDFInfo
- Publication number
- CN104329143A CN104329143A CN201410279402.XA CN201410279402A CN104329143A CN 104329143 A CN104329143 A CN 104329143A CN 201410279402 A CN201410279402 A CN 201410279402A CN 104329143 A CN104329143 A CN 104329143A
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- CN
- China
- Prior art keywords
- end cover
- cover
- adpting flange
- suction tude
- catalytic converter
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- 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.)
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- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to a three-way catalytic converter. The three-way catalytic converter comprises a front connecting flange, a front oxygen sensor nut, an air inlet pipe, a front end cover, a front-stage cylinder body, a gasket, a front-stage catalyst, a rear-stage cylinder body, a rear-stage catalyst, a rear end cover, a rear oxygen sensor nut, an exhaust pipe and a rear connecting flange; the catalysts are cylindrical, the circumferential outer sides of the catalysts are wrapped with the gasket; the front end cover and the rear end cover are cylindrical shells with the trapezoid middle cross sections, the two ends closed up and the cylindrical cross sections; the catalysts wrapped with the gasket are assembled in a cavity formed by buckling the front end cover and the rear end cover to form a catalytic converter component; one end of the air inlet pipe and one end of the exhaust pipe are assembled on the two sides of the catalytic converter component respectively; the front connecting flange is arranged at the other end of the air inlet pipe; the rear connecting flange is arranged at the other end of the exhaust pipe. By the adoption of the oval cavity, space is saved, and the ternary catalytic effect is achieved. Meanwhile, a purifier in a stamping mode is adopted to be connected with the front connecting flange at the front end in a welding mode; the diameter and the shape of an exhaust manifold are designed, and therefore the air flow direction of an engine can be well controlled. The catalysts in the three-way catalytic converter can more participate in reaction, and the conversion efficiency of tail gas exhaust is improved.
Description
Technical field
The present invention relates to a kind of ternary catalyzing unit, belong to technical field of engines.
Background technique
The imperfect combustion harmful gases such as CO, HC and the NOx discharged that produce mainly are pooled to ternary catalyzing unit reaction by purifier by ternary catalyzing unit, and oxidation and reduction change harmless carbon dioxide, water and nitrogen into, meet emission request.Current three-way catalyst mainly wraps up with liner and is placed in metal shell, and ensure that catalyzer is unlikely to burst when being subject to the outside cooling suddenly of car body, but current most ternary catalyzing unit housing is circular, the space of putting because of car domain catalyst converter is less, if adopt round carrier just cannot place.So adopt half-shell racetrack carrier package mode, it is little and cannot put the difficulty of carrier to solve space, chassis like this.
Summary of the invention
Goal of the invention: the object of the invention is to for the deficiencies in the prior art, provides a kind of ternary catalyzing unit, takies ground disk space less, is convenient to be installed on various types of chassis.
Ternary catalyzing unit of the present invention, comprise front adpting flange, front lambda sensor nut, suction tude, front cover, prime cylindrical shell, liner, front stage catalyst, rear class cylindrical shell, rear stage catalyst, rear end cover, outlet pipe, post oxygen sensor nut, rear adpting flange, it is characterized in that: described catalyzer is cylindrical, described liner is wrapped in described catalyzer periphery, it is trapezoidal that described front cover and rear end cover are middle cross section, close up in two ends and cross section is the circular capable housing of cylinder, be surrounded by the front stage catalyst of liner and rear stage catalyst to be assemblied in cavity that front cover and rear end cover make-up formed and to form catalyst converter assembly, one end of described suction tude and described outlet pipe is assemblied in described catalyst converter assembly both sides respectively, the described suction tude the other end is equipped with described front adpting flange, and the described outlet pipe the other end is equipped with described rear adpting flange.
Aforesaid ternary catalyzing unit, front cover and rear end cover adopt conical closing in form, and front cover miner diameter end is connected with suction tude, and rear end cover miner diameter end is connected with described outlet pipe.
Aforesaid suction tude and outlet pipe position are equipped with lambda sensor nut, and suction tude is provided with adpting flange in addition with exhaust pipe end.
The invention has the beneficial effects as follows: (1) adopts the cavity of multi-stage circular not only to save space but also reaches the effect of three-element catalytic.(2) adopt the purifier of punching press form to connect the front adpting flange of front end, and adopt Type of Welding to connect.By the design to outlet pipe caliber and shape, well control engine air flow and flow to, make the catalyzer in ternary catalyzing unit more can participate in reaction, improve the transformation efficiency of exhaust emissions.
Accompanying drawing explanation
Fig. 1 is ternary catalystic device structure schematic diagram of the present invention.
Fig. 2 is A-A sectional view of the present invention.
Embodiment
Below technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described embodiment.
Embodiment: a kind of ternary catalyzing unit that the present embodiment provides, structure as shown in Figure 1, comprise front adpting flange 1, front lambda sensor nut 2, suction tude 3, front cover 4, prime cylindrical shell 5, liner 11, front stage catalyst 12, rear class cylindrical shell 6, rear stage catalyst 13, rear end cover 7, post oxygen sensor nut 8, outlet pipe 9, rear adpting flange 10, it is characterized in that: described catalyzer 12 is for cylindrical, described liner bag 11 is wrapped in described catalyzer 12 periphery, it is trapezoidal that described front cover 4 is middle cross section with rear end cover 9, close up in two ends and cross section is the circular capable housing of cylinder, the front stage catalyst 12 being surrounded by liner 11 and rear stage catalyst 13 are assemblied in that cavity that front cover 4 and rear end cover 9 make-up formed is interior forms catalyst converter assembly, described suction tude 3 is assemblied in described catalyst converter assembly both sides respectively with one end of described outlet pipe 7, described suction tude 3 the other end is equipped with described front adpting flange 1, and described outlet pipe 9 the other end is equipped with described rear adpting flange 10.
Aforesaid ternary catalyzing unit, front cover 4 and rear end cover 9 adopt conical closing in form, and front cover miner diameter end is connected with suction tude 2, and rear end cover miner diameter end is connected with described outlet pipe 10.
Aforesaid suction tude 3 is respectively equipped with outlet pipe 10 position and is provided with front lambda sensor nut 2 and post oxygen sensor nut 11, and suction tude 3 is also respectively equipped with front adpting flange 1 and rear adpting flange 10 with exhaust pipe end.
When specific operation use, first liner 11 is wrapped in outside front stage catalyst 12, and the liner 11 being enclosed with front stage catalyst 12 is positioned in the cavity of prime cylindrical shell 5, rear stage catalyst 13 is positioned in the cavity of rear class cylindrical shell 6, prime cylindrical shell 5 and rear class cylindrical shell 6 port are welded to connect, again by front cover 4 and rear end cover 7 pairs of buckle welded closure, again suction tude 3 and one end of outlet pipe 9 are welded in catalyst converter assembly both sides respectively, adpting flange 1 before the welding of suction tude 3 opposite side, adpting flange 10 after the welding of outlet pipe 9 opposite side, the ternary catalyzing unit welded is assemblied in vent systems by Flange joint.
As mentioned above, although represented with reference to specific preferred embodiment and described the present invention, it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite not departing from claims definition, various change can be made in the form and details to it.
Claims (3)
1. a ternary catalyzing unit, comprise front adpting flange (1), front lambda sensor nut (2), suction tude (3), front cover (4), prime cylindrical shell (5), liner (11), front stage catalyst (12), rear class cylindrical shell (6), rear stage catalyst (13) rear end cover (7), post oxygen sensor nut (8), outlet pipe (9), rear adpting flange (10), it is characterized in that: described catalyzer (12) is for cylindrical, described liner (11) is wrapped in described catalyzer (12) periphery, it is trapezoidal that described front cover (4) and rear end cover (9) are middle cross section, close up in two ends and cross section is the circular capable housing of cylinder, the front stage catalyst (12) being surrounded by liner (11) and rear stage catalyst (13) are assemblied in that cavity that front cover (4) and rear end cover (9) make-up formed is interior forms catalyst converter assembly, described suction tude (3) is assemblied in described catalyst converter assembly both sides respectively with one end of described outlet pipe (7), described suction tude (3) the other end is equipped with described front adpting flange (1), and described outlet pipe (7) the other end is equipped with described rear adpting flange (10).
2. ternary catalyzing unit according to claim 1, it is characterized in that: front cover (4) and rear end cover (7) adopt conical closing in form, front cover (4) miner diameter end is connected with suction tude (3), and rear end cover (7) miner diameter end is connected with described outlet pipe (9).
3. ternary catalyzing unit according to claim 1, it is characterized in that: aforesaid suction tude 3 is respectively equipped with outlet pipe 9 position and is provided with front lambda sensor nut 2 and post oxygen sensor nut 11, suction tude 3 is also respectively equipped with front adpting flange 1 and rear adpting flange 10 with exhaust pipe end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279402.XA CN104329143A (en) | 2014-06-18 | 2014-06-18 | Three-way catalytic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279402.XA CN104329143A (en) | 2014-06-18 | 2014-06-18 | Three-way catalytic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104329143A true CN104329143A (en) | 2015-02-04 |
Family
ID=52403935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410279402.XA Pending CN104329143A (en) | 2014-06-18 | 2014-06-18 | Three-way catalytic converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329143A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736096A (en) * | 2016-03-09 | 2016-07-06 | 无锡威孚力达催化净化器有限责任公司 | End cone structure capable of effectively preventing deflation of gasket |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH679460A5 (en) * | 1990-10-10 | 1992-02-28 | Daniel Greub | Surface cooled exhaust gas catalyst useful for boat engines - having surface cooling by means of cooling jacket and used in engines having characteristic field and lambda controlled ignition |
| EP1420149A2 (en) * | 2002-11-14 | 2004-05-19 | Hitachi, Ltd. | Exhaust gas purification apparatus |
| CN1971007A (en) * | 2006-12-13 | 2007-05-30 | 湖南威斯特汽车零配件有限公司 | Binding-packaging process for triple purifier of automobile |
| CN200985818Y (en) * | 2006-12-19 | 2007-12-05 | 比亚迪股份有限公司 | Ternary catalyst convertor |
| CN201250690Y (en) * | 2008-08-21 | 2009-06-03 | 浙江吉利汽车研究院有限公司 | Three-way catalytic converter assembly |
| CN201297197Y (en) * | 2008-11-18 | 2009-08-26 | 湖南威斯特汽车零配件有限公司 | Automobile ternary purifier with retaining collar |
| CN203022850U (en) * | 2013-01-30 | 2013-06-26 | 重庆海特汽车排气系统有限公司 | Two-carrier-containing structure of automobile three-way catalyst housing |
-
2014
- 2014-06-18 CN CN201410279402.XA patent/CN104329143A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH679460A5 (en) * | 1990-10-10 | 1992-02-28 | Daniel Greub | Surface cooled exhaust gas catalyst useful for boat engines - having surface cooling by means of cooling jacket and used in engines having characteristic field and lambda controlled ignition |
| EP1420149A2 (en) * | 2002-11-14 | 2004-05-19 | Hitachi, Ltd. | Exhaust gas purification apparatus |
| CN1971007A (en) * | 2006-12-13 | 2007-05-30 | 湖南威斯特汽车零配件有限公司 | Binding-packaging process for triple purifier of automobile |
| CN200985818Y (en) * | 2006-12-19 | 2007-12-05 | 比亚迪股份有限公司 | Ternary catalyst convertor |
| CN201250690Y (en) * | 2008-08-21 | 2009-06-03 | 浙江吉利汽车研究院有限公司 | Three-way catalytic converter assembly |
| CN201297197Y (en) * | 2008-11-18 | 2009-08-26 | 湖南威斯特汽车零配件有限公司 | Automobile ternary purifier with retaining collar |
| CN203022850U (en) * | 2013-01-30 | 2013-06-26 | 重庆海特汽车排气系统有限公司 | Two-carrier-containing structure of automobile three-way catalyst housing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736096A (en) * | 2016-03-09 | 2016-07-06 | 无锡威孚力达催化净化器有限责任公司 | End cone structure capable of effectively preventing deflation of gasket |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150204 |
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| WD01 | Invention patent application deemed withdrawn after publication |