CN201269126Y - Catalyst component - Google Patents
Catalyst component Download PDFInfo
- Publication number
- CN201269126Y CN201269126Y CNU2008200996968U CN200820099696U CN201269126Y CN 201269126 Y CN201269126 Y CN 201269126Y CN U2008200996968 U CNU2008200996968 U CN U2008200996968U CN 200820099696 U CN200820099696 U CN 200820099696U CN 201269126 Y CN201269126 Y CN 201269126Y
- Authority
- CN
- China
- Prior art keywords
- catalyst
- threeway
- way
- connecting tube
- output member
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a catalyst component, comprising an oxygen sensor and a net-shaped three-way catalyst. The catalyst component is characterized in that the three-way catalyst is arranged inside a catalyst connecting pipe; one end of the catalyst connecting pipe is provided with a three-way input pipe and the other end thereof is connected with an output piece; an output port of the three-way input pipe is welded on the catalyst connecting pipe; the oxygen sensor is fixed between two input ports of the three-way input pipe; the oxygen sensor obtains the information of oxygen content inside the three-way input pipe; a lead outputs the information of the oxygen content; an input port of the output piece is welded on the catalyst connecting pipe; and an output port of the output piece is provided with an anchor ear. The catalyst component has the obvious effects of simple structure, low cost and capability of supplying a group of accurate and reliable information of oxygen content of exhaust pipes to an ECU in real time, moreover, the catalyst component effectively saves the resource space of the ECU, and the ECU controls the fuel delivery and the oxygen delivery of engines and ensures that the tail gas of motorbikes is in accordance with the demand of the National Standard III.
Description
Technical field
The utility model belongs to the motor exhaust technical field, specifically, is a kind of catalyst assembly of motorcycle with electronic fuel injection system.
Background technique
Motorcycle technology constantly develops, and electric jet technology has substituted Manufacturing Technology for Carburetors, and along with improving constantly of environmental requirement, state III standard is had higher requirement to the exhaust emissions of vehicle.The outlet pipe of Carburetor motorcycle directly is connected on the motorcycle gas outlet, and on gas outlet, fix a silencer, just formed early stage exhaust system for motorcycle, electric jet technology has substituted after the Carburetor, factory of family begins to install three-way catalyst on outlet pipe, three-way catalyst absorbs NO, CO, the hydrocarbon that motorcycle engine is discharged, and in the outlet pipe of three-way catalyst upstream, lambda sensor is installed, transmit oxygen content information and give ECU, the fuel delivery and the oxygen-supplying amount of ECU control motor make the tail gas of motorcycle meet the requirement of state III standard.
The shortcoming of prior art is: two outlet pipes of double motorcycle all will discharge motorcycle exhaust, if all load onto three-way catalyst and lambda sensor in two outlet pipes, both increased manufacture cost, increased the workload of ECU again, if three-way catalyst and lambda sensor only are installed in an outlet pipe, can reduce the degree of accuracy of oxygen content information again, be difficult to guarantee that the discharging of motorcycle exhaust meets state III standard.
The model utility content
The purpose of this utility model provides a kind of catalyst assembly simple in structure, with low cost, can provide outlet pipe oxygen content information accurately and reliably to ECU, guarantees that effectively the discharging of motorcycle exhaust meets state III standard.
For achieving the above object, the utility model provides a kind of catalyst assembly, comprises lambda sensor and netted three-way catalyst, and its key is: described three-way catalyst is installed in the catalyst connecting tube, one end of this catalyst connecting tube is equipped with the threeway supplying tube, and the other end is connected with output member;
The delivery outlet of described threeway supplying tube is welded on the described catalyst connecting tube, be provided with lambda sensor between two inlet openings of this threeway supplying tube, this lambda sensor obtains the oxygen content information in the described threeway supplying tube, and the lead of this lambda sensor is exported described oxygen content information;
Two inlet openings of threeway supplying tube are welded on two outlet pipes of motorcycle, gather whole tail gas that motorcycle engine is got rid of, before tail gas enters catalyst connecting tube and three-way catalyst and reacts, lambda sensor obtains one group of oxygen content information accurately and reliably, and send to ECU, the fuel delivery and the oxygen-supplying amount of ECU control motor make the tail gas of motorcycle meet the requirement of state III standard.
The inlet opening of described output member is welded on the described catalyst connecting tube, and the delivery outlet of this output member is provided with anchor ear.
Described threeway supplying tube is the three-way pipe that the longitudinal section is isosceles trapezoid, and the delivery outlet of this threeway supplying tube is positioned at the last bottom of isosceles trapezoid, and two inlet opening bilateral symmetry of this threeway supplying tube are arranged in the following bottom of isosceles trapezoid.
Described output member is the three-way pipe that the longitudinal section is the isosceles trapezoid shape, and the inlet opening of described output member is positioned at the last bottom of isosceles trapezoid, and two delivery outlet bilateral symmetry of this output member are arranged in the following bottom of isosceles trapezoid, and two delivery outlets are respectively arranged with anchor ear.
Anchor ear be used for and the motorcycle gas outlet between be fastenedly connected, directly the cleaning exhaust emissions that three-way catalyst was handled is to gas outlet.
The interior section area of described catalyst connecting tube is greater than section area sum in two inlet openings of described threeway supplying tube.
Described three-way catalyst is metal net shaped structure, and the inwall interference fit of this three-way catalyst and described catalyst connecting tube is installed.
The three-way catalyst of metal net shaped structure is installed in the catalyst connecting tube, for guaranteeing that the mistake tolerance in the catalyst connecting tube can satisfy the summation that tolerance is crossed in two inlet openings of threeway supplying tube, must make the interior section area of catalyst connecting tube greater than section area sum in two inlet openings.
Remarkable result of the present utility model is: catalyst assembly simple in structure, with low cost is provided, can provide one group of outlet pipe oxygen content information accurately and reliably in real time to ECU, and effectively saved the resource space of ECU, the fuel delivery and the oxygen-supplying amount of ECU control motor guarantee that the tail gas of motorcycle meets the requirement of state III standard.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the cross-sectional view of catalyst connecting tube;
Fig. 3 is an installation plan view of the present utility model;
Fig. 4 is an installation side view of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, 2: a kind of catalyst assembly, form by lambda sensor 5, catalyst connecting tube 2, threeway supplying tube 3, output member 4 and netted three-way catalyst 1, described three-way catalyst 1 is installed in the catalyst connecting tube 2, three-way catalyst 1 is metal net shaped structure, the inwall interference fit of this three-way catalyst 1 and described catalyst connecting tube 2, one end of this catalyst connecting tube 2 is equipped with threeway supplying tube 3, and the other end is connected with output member 4;
The delivery outlet of described threeway supplying tube 3 is welded on the described catalyst connecting tube 2, be provided with lambda sensor 5 between two inlet openings of this threeway supplying tube 3, this lambda sensor 5 obtains the oxygen content information in the described threeway supplying tube 3, and the lead of this lambda sensor 5 is exported described oxygen content information;
Shown in Fig. 3,4: two inlet openings of threeway supplying tube 3 are welded on two outlet pipes of motorcycle, gather whole tail gas that motorcycle engine is got rid of, before tail gas enters catalyst connecting tube 2 and reacts with three-way catalyst 1, lambda sensor 5 obtains one group of oxygen content information accurately and reliably, and send to ECU, the fuel delivery and the oxygen-supplying amount of ECU control motor make the tail gas of motorcycle meet the requirement of state III standard.
The inlet opening of described output member 4 is welded on the described catalyst connecting tube 2, and the delivery outlet of this output member 4 is provided with anchor ear.
Described threeway supplying tube 3 is the three-way pipe of isosceles trapezoid for the longitudinal section, and the delivery outlet of this threeway supplying tube 3 is positioned at the last bottom of isosceles trapezoid, and two inlet opening bilateral symmetry of this threeway supplying tube 3 are arranged in the following bottom of isosceles trapezoid.
Described output member 4 is the three-way pipe of isosceles trapezoid shape for the longitudinal section, and the inlet opening of described output member 4 is positioned at the last bottom of isosceles trapezoid, and two delivery outlet bilateral symmetry of this output member 4 are arranged in the following bottom of isosceles trapezoid, and two delivery outlets are respectively arranged with anchor ear.
Anchor ear be used for and the motorcycle gas outlet between be fastenedly connected, directly the cleaning exhaust emissions that three-way catalyst 1 was handled is to gas outlet.
The interior section area of described catalyst connecting tube 2 is greater than section area sum in 3 two inlet openings of described threeway supplying tube.
As shown in Figure 2: described three-way catalyst 1 is metal net shaped structure, and this three-way catalyst 1 is installed with the inwall interference fit of described catalyst connecting tube 2.
The three-way catalyst 1 of metal net shaped structure is installed in the catalyst connecting tube 2, for guaranteeing that the mistake tolerance in the catalyst connecting tube 2 can satisfy the summation that tolerance is crossed in 3 two inlet openings of threeway supplying tube, must make catalyst connecting tube 2 interior section area greater than section area sum in two inlet openings.
Working principle of the present utility model is:
Threeway supplying tube 3 is gathered whole motor exhausts that two outlet pipes of motor are got rid of, before tail gas enters, lambda sensor 5 obtains one group of oxygen content information accurately and reliably, and send to ECU, the fuel delivery and the oxygen-supplying amount of ECU control motor, after tail gas enters catalyst connecting tube 2, react with three-way catalyst 1, three-way catalyst absorbs the NO that motorcycle engine is discharged, CO, hydrocarbon, make the tail gas of motorcycle meet the requirement of state III standard, being fastenedly connected between the anchor ear of output member 4 and the motorcycle gas outlet directly will be cleaned exhaust emissions and give gas outlet, and the silencing apparatus on the gas outlet is subdued the air-flow howling of tail gas.
Claims (5)
1, a kind of catalyst assembly, comprise lambda sensor (5) and netted three-way catalyst (1), it is characterized in that: described three-way catalyst (1) is installed in the catalyst connecting tube (2), and an end of this catalyst connecting tube (2) is equipped with threeway supplying tube (3), and the other end is connected with output member (4);
The delivery outlet of described threeway supplying tube (3) is welded on the described catalyst connecting tube (2), be provided with lambda sensor (5) between two inlet openings of this threeway supplying tube (3), this lambda sensor (5) obtains the oxygen content information in the described threeway supplying tube (3), and the lead of this lambda sensor (5) is exported described oxygen content information;
The inlet opening of described output member (4) is welded on the described catalyst connecting tube (2), and the delivery outlet of this output member (4) is provided with anchor ear.
2, catalyst assembly according to claim 1, be characterised in that: described threeway supplying tube (3) is the three-way pipe of isosceles trapezoid for the longitudinal section, the delivery outlet of this threeway supplying tube (3) is positioned at the last bottom of isosceles trapezoid, and two inlet opening bilateral symmetry of this threeway supplying tube (3) are arranged in the following bottom of isosceles trapezoid.
3, catalyst assembly according to claim 1, be characterised in that: described output member (4) is the three-way pipe of isosceles trapezoid shape for the longitudinal section, the inlet opening of described output member (4) is positioned at the last bottom of isosceles trapezoid, two delivery outlet bilateral symmetry of this output member (4) are arranged in the following bottom of isosceles trapezoid, and two delivery outlets are respectively arranged with anchor ear.
4, catalyst assembly according to claim 1 is characterised in that: the interior section area of described catalyst connecting tube (2) is greater than section area sum in (3) two inlet openings of described threeway supplying tube.
5, catalyst assembly according to claim 1 is characterised in that: described three-way catalyst (1) is metal net shaped structure, and this three-way catalyst (1) is installed with the inwall interference fit of described catalyst connecting tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200996968U CN201269126Y (en) | 2008-08-12 | 2008-08-12 | Catalyst component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200996968U CN201269126Y (en) | 2008-08-12 | 2008-08-12 | Catalyst component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269126Y true CN201269126Y (en) | 2009-07-08 |
Family
ID=40841724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200996968U Expired - Fee Related CN201269126Y (en) | 2008-08-12 | 2008-08-12 | Catalyst component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201269126Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359983A (en) * | 2019-08-08 | 2019-10-22 | 张亚鑫 | A kind of lambda sensor carbon distribution cleaning device of ternary catalyzing unit |
-
2008
- 2008-08-12 CN CNU2008200996968U patent/CN201269126Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359983A (en) * | 2019-08-08 | 2019-10-22 | 张亚鑫 | A kind of lambda sensor carbon distribution cleaning device of ternary catalyzing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20130812 |