CN203022850U

CN203022850U - Two-carrier-containing structure of automobile three-way catalyst housing

Info

Publication number: CN203022850U
Application number: CN2013200519404U
Authority: CN
Inventors: 刘春桃; 庞益伟; 彭永生
Original assignee: CHONGQING HAITE AUTOMOTIVE EXHAUST SYSTEM Co Ltd
Current assignee: CHONGQING HAITE AUTOMOTIVE EXHAUST SYSTEM Co Ltd
Priority date: 2013-01-30
Filing date: 2013-01-30
Publication date: 2013-06-26
Anticipated expiration: 2023-01-30

Abstract

The utility model discloses a two-carrier-containing structure of an automobile three-way catalyst housing. The two-carrier-containing structure comprises a catalyst body, wherein a primary carrier and a secondary carrier are arranged in the catalyst body. The two-carrier-containing structure is characterized in that the primary carrier and the secondary carrier are simultaneously arranged in the same housing, and arranged in parallel front and back, and a limiting element is arranged between the primary carrier and the secondary carrier. The two-carrier-containing structure of the automobile three-way catalyst housing provided by the utility model has the advantages that the distance between the secondary carrier and the engine is reduced and the temperature rises so that the chemical materials in the carrier are capable of thoroughly reacting with gas exhausted by the engine and emission of harmful gas is reduced, two end covers are reduced so that the production cost is reduced, the weight of the product is integrally reduced and the volume (dimension) is reduced to leave space for automobile layout so that the layout is more convenient and rational.

Description

The automobile three-way catalysts housing contains two carrier structures

Technical field

The ternary catalyzing unit field, particularly three-element catalyzer of automobile engine that the utility model relates to automobile engine exhaust system contains the structure of two carriers.

Background technique

The ternary catalyzing unit of automobile is the vitals in motor car engine field (vent systems), its working principle is: when the vehicle exhaust of high temperature passes through purification plant, purifying agent in ternary catalyzing unit will strengthen the activity of CO, HC and three kinds of gases of NOx, impel it to carry out certain oxidation-reduction chemical reaction, wherein CO at high temperature is oxidized into colourless, nontoxic carbon dioxide; The HC compound at high temperature is oxidized to water (H20) and carbon dioxide; NOx is reduced into nitrogen and oxygen; These three kinds of harmful gases are become innocuous gas, vehicle exhaust is purified.

But, the ternary catalyzing unit of prior art, level vector and two grade carriers are arranged in housing separately, and two ends are sealed with end cap; When ternary catalyzing unit was arranged on the afterbody of automobile, the temperature of carrier was lower, and the chemical substance (purifying agent) inside carrier can not fully be reacted with the gas that motor is discharged, and the tail gas hazard-free changing effect reduces greatly, causes discharge of poisonous waste to exceed standard; And all to need at least one end cap to carry out separately airtight due to level vector and two grade carriers, and the quantity of end cap is many, be used multiple times, and causes the waste of material; And due to the cause of using a plurality of end caps, increased the volume of ternary catalyzing unit, more enlarged markedly the length of ternary catalyzing unit, and there is certain location conflicts between the component such as automobile chassis, bring a lot of constraints (original structure is seen Fig. 1) during installation, the layout between component is subject to larger restriction.In addition, use the cause of a plurality of end caps, the distance between two grade carriers and engine exhaust hole is distant, has also reduced the catalytic effect of two grade carriers.

The model utility content

The utility model is in order to overcome the ternary catalyzing unit above shortcomings of prior art, its objective is in order to optimize automobile three-way catalysts using the structure of 2 grades or multistage above carrier, provides a kind of three-element catalyzer of automobile engine to contain the structure of pair carriers.It can effectively reduce automobile exhaust, improves the carrier chemical reaction efficiency, reduces cost of material.

To achieve these goals, the technical solution of the utility model is: a kind of automobile three-way catalysts housing contains two carrier structures, comprise the catalyst converter body, be provided with level vector and two grade carriers in the catalyst converter body, it is characterized in that: described level vector and two grade carriers are arranged in same housing simultaneously, and front and back are set up in parallel; Between level vector and two grade carriers, bounding means is set.

Further feature is: described bounding means, the draw-in groove of the indent that forms at the end face of housing.

Between the inwall of the end face of level vector, two grade carriers and housing, liner is set.

The utility model three-element catalyzer of automobile engine contains the structure of two carriers, and its effect is as follows:

1: Second support diminishes from the motor distance, and temperature raises, and the gas that the chemical substance inside carrier and motor are discharged just can fully react, and reduces noxious gas emission.

2: reduced by two end caps, reduced production costs.

3: reduced on the whole product weight, reduced volume (size), reserved the space for the automobile layout, layout is more convenient, reasonable.

Description of drawings

Fig. 1 is the three-element catalyzer of automobile engine structural representation of prior art;

Fig. 2 is the utility model ternary catalystic device structure schematic diagram;

Fig. 3 is the utility model ternary catalyzing unit mounting structure figure.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further illustrated.

As shown in Fig. 2,3, the utility model three-element catalyzer of automobile engine contains the structure of two carriers, comprise catalyst converter body 1, be provided with level vector 2 and two grade carriers 3 in catalyst converter body 1, level vector 2 and two grade carriers 3 are the material formations for generation of catalytic reaction, has the passage that supplied gas is passed through in catalyst converter body 1, the tail gas that motor car engine is discharged enters in catalyst converter body 1, through level vector 2 and two grade carrier 3(or more multistage carrier) after catalytic treatment, discharge catalyst converter body 1; Above content as prior art is not further described at this.

Improvement of the present utility model is that level vector 2 and two grade carriers 3 are arranged in the housing 4 of catalyst converter body 1, and namely level vector 2 and two grade carriers 3 are arranged in same housing 4 simultaneously, and front and back are set up in parallel; Between level vector 2 and two grade carriers 3, bounding means 5 is set, the positional distance with between restriction level vector 2 and two grade carriers 3 prevents that both from drawing close fully and affecting catalytic effect, and fixes its position in housing 4.In addition, between the inwall of the end face of level vector 2, two grade carriers 3 and housing 4, liner 6 is set, to obtain better catalyticing purifying effect.

Described bounding means 5 has various structures; The utility model is from making angle easy, easy for installation, a kind of concrete bounding means 5 is provided, namely the end face at housing 4 carries out spinning, obtain the draw-in groove 7 of indent, draw-in groove 7 is arc craters that the end face at housing 4 obtains through spinning, its degree of depth is suitable for can limit level vector 2 and the position of two grade carriers 3 in housing 4, prevents that it is in the interior movement of housing 4.

The utility model is arranged on level vector 2 and two grade carriers 3 in same housing 4, simultaneously through bounding means 5(draw-in groove 7) spacing, only an end cap need to be set respectively at two ends, reduced by two end caps than original structure; And, shortened the distance between level vector 2 and two grade carriers 3, more shortened the distance between two grade carriers 3 and engine exhaust hole, temperature raises, the gas that the chemical substance of carrier the inside and motor are discharged just can fully react, and reduces noxious gas emission.In addition, the volume of whole ternary catalyzing unit (size) has diminished, and the location conflicts problem between the component such as automobile chassis solved, and layout is more convenient.

Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims

1. an automobile three-way catalysts housing contains two carrier structures, comprise catalyst converter body (1), be provided with level vector (2) and two grade carriers (3) in catalyst converter body (1), it is characterized in that: described level vector (2) and two grade carriers (3) are arranged in same housing (4) simultaneously, and front and back are set up in parallel; Between level vector (2) and two grade carriers (3), bounding means (5) is set.

2. the automobile three-way catalysts housing contains two carrier structures according to claim 1, it is characterized in that: described bounding means (5), the draw-in groove (7) of the indent that forms at the end face of housing (4).

3. described automobile three-way catalysts housing contains two carrier structures according to claim 1 and 2, it is characterized in that: between the inwall of the end face of level vector (2), two grade carriers (3) and housing (4), liner (6) is set.