KR19990000893U - Structure for Improving Function of Catalytic Converter for Vehicle - Google Patents

Abstract

The present invention is to realize a structure that allows the exhaust gas to pass evenly through the entire portion of the catalytic converter, thereby improving the efficiency of the catalytic converter, the structure is the cylinder head constituting the engine of the vehicle The first and second exhaust manifolds for guiding the exhaust of the combustion gas are coupled to both sides, one end of the first and second exhaust pipes for guiding the flow of the combustion gas is coupled to the first and second exhaust manifolds, and the other end is burned. It is coupled to both ends of the catalytic converter 12 for oxidizing and reducing CO, NO _X , HC, etc. contained in the gas to CO ₂ , H ₂ O, N ₂ , and the like, respectively. A vehicle catalyst having a third and fourth exhaust pipes for guiding the flow and a fifth exhaust pipe for guiding the exhaust gas to be discharged to the outside at the third and fourth exhaust pipe outlets. It is to provide a structure for improving the function of the converter.

Description

Structure for Improving Function of Catalytic Converter for Vehicle

The present invention relates to a structure for improving the function of a catalytic converter for a vehicle, and in particular, by realizing a structure that allows exhaust gas to pass through the entire portion of the catalytic converter evenly, the efficiency of the catalytic converter is improved by expanding the contact area. The present invention relates to a structure for improving the function of a catalytic converter for a vehicle.

In general, catalytic converters produce harmful and harmful components such as CO ₂ , H ₂ O, and N ₂ by oxidizing and reducing the harmful components such as CO, NO _X , and HC contained in the combustion gas exhausted while the engine is operating. It is responsible for converting.

In the prior art, as shown in FIG. 3, first and second exhaust manifolds 104 and 106 are installed in a cylinder head 102 of an engine having a cylinder arrangement having a V shape.

One end of the first and second exhaust pipes 108 and 110 is coupled to the outlets of the first and second exhaust manifolds 104 and 106, and the catalytic converter is configured to oxidize and reduce harmful gas components exhausted at the other end. 112 is combined.

A third exhaust pipe 114 is connected to the outlet of the catalytic converter 112 to guide the combustion gas to the outside.

In this case, first and second exhaust pipes 108 and 110 are positioned at both front ends of the catalytic converter 112, and the third pipe 114 is located at the rear center of the catalytic converter 112.

Referring to the operation of the conventional technology configured as described above is as follows.

When the engine is operated, combustion gas is exhausted through the cylinder head 102, which is exhausted through the first and second exhaust manifolds 104 and 106 and along the first and second exhaust pipes 108 and 110. Move.

At the same time, the combustion gas passes through the catalytic converter 112, wherein the combustion gas exhausted through the first and second exhaust pipes 108 and 110 flows into both sides of the catalytic converter 112 and is located at the rear center. It is exhausted to the third exhaust pipe 114.

At this time, the combustion gas is introduced into the first and second exhaust pipes 108 and 110 at the same time, but since the third exhaust pipe 114 is located at the rear center of the catalytic converter 112, the combustion gas has a front end portion. It is collected from the outside to the center and is exhausted to the outside through the third exhaust pipe 114.

Therefore, the outside of the tail of the catalytic converter 112 is not directly heated because the combustion gas does not reach, and at the same time does not play a role of oxidation and reduction.

In the above-described conventional technique, when a large amount of exhaust gas is passed through a catalytic converter, the exhaust gas is contacted over the entire surface and exhausted while only a part of the exhaust gas is contained. In some, the area in contact with the catalytic converter becomes small, and thus, the oxidation and reduction reactions do not occur, and the efficiency is reduced by exhausting to the outside.

The present invention aims to enable the efficiency of the catalytic converter to be improved by the expansion of the contact area by realizing a structure in which exhausted exhaust gas can pass through all parts of the catalytic converter evenly.

The present invention for realizing this, the first and second exhaust manifolds for guiding the exhaust of the combustion gas is coupled to both sides of the cylinder head constituting the engine of the vehicle, the first and second exhaust manifolds for guiding the flow of the combustion gas One end of the first and second exhaust pipes is coupled, and the other end of the catalytic converter 12 oxidizes and reduces CO, NO _X , HC, etc. contained in the combustion gas to CO ₂ , H ₂ O, N _2, and the like. It is coupled to both sides, respectively, the third and fourth exhaust pipes for guiding the flow of the combustion gas is coupled to both sides of the rear of the catalytic converter, the third, fourth exhaust pipe outlet for guiding the combustion gas to be exhausted to the outside The fifth exhaust pipe is joined.

1 is a state diagram schematically showing an embodiment of the present invention.

Figure 2 is a state diagram showing the effect of the present invention.

3 is a state diagram schematically showing a conventional embodiment.

Explanation of symbols for the main parts of the drawings

2: Cylinder head 4: First exhaust manifold 8: Ves 1 exhaust pipe

12: catalyst converter 14: third exhaust pipe 18: fifth exhaust pipe

The present invention constitutes a V6 engine having a six-cylinder cylinder with a V-shaped cylinder arrangement as shown in FIG. 1, the first guides the flow of combustion gas exhausted to the cylinder head 2 constituting the engine. 2 exhaust manifolds 4 and 6 are provided on both sides, respectively.

One end of the first and second exhaust pipes 8 and 10 is coupled to an outlet of the first and second exhaust manifolds 4 and 6, and the other end of the first and second exhaust pipes 8 and 10 is CO, The catalytic converter 12, which converts into harmless components such as CO ₂ , H ₂ O, and N ₂ , is combined by causing oxidation and reduction of harmful components such as NO _X and HC.

In this case, the first and second exhaust pipes 8 and 10 are disposed at both ends of the catalytic converter 12, respectively.

In addition, one end of the third and fourth exhaust pipes 14 and 16 is coupled to both rear sides of the catalytic converter 12, and the other end of the fifth exhaust pipe 18 guides the combustion gas to be exhausted to the outside. ) Are installed in combination.

Referring to the operation of the present invention configured as described above are as follows.

When the engine is operated, combustion gases are simultaneously exhausted from each cylinder not shown through the first and second exhaust manifolds 4 and 6, and together with the combustion gases, the first and second exhaust pipes 8 and 10 are exhausted. As it moves along, it enters the catalytic converter 12.

At this time, the combustion gas is the third, fourth exhaust pipes 14, 16 are located on both sides of the rear end of the catalytic converter 12, as shown in Figure 2, the first, second exhaust pipes (8, 10) Combustion gas flowing into the catalytic converter 12 through) is spread to the inside.

Therefore, the combustion gas is heated in contact with the entire surface of the catalytic converter 12 except for the center of the tip.

As a result, the catalytic converter 12 is heated by exhaust heat of the combustion gas so that the front surface of the catalytic converter 12 can be easily oxidized and reduced. Therefore, the combustion gas is contained while passing through the catalytic converter 12. CO, NO _X , HC and the like are converted into harmless components such as CO ₂ , H ₂ O, N ₂ while oxidizing and reducing.

Subsequently, the combustion gas passing through the catalytic converter 12 passes through the third and fourth exhaust pipes 14 and 16 and is exhausted to the outside through the fifth exhaust pipe 18.

The present invention has a structure that allows the exhaust gas to pass through the entire portion of the catalytic converter evenly, thereby allowing the combustion gas to effectively oxidize and reduce the reaction, thereby improving the efficiency of the catalytic converter. There is this.

Claims (1)

The first and second exhaust manifolds 4 and 6 for guiding the exhaust of the combustion gas are coupled to both sides of the cylinder head 2 constituting the engine of the vehicle, and the combustion gases are connected to the first and second exhaust manifolds 4 and 6. One end of the first and second exhaust pipes 8 and 10 for guiding the flow thereof is coupled, and the other end oxidizes CO, NO _X , HC, etc. contained in the combustion gas to CO ₂ , H ₂ O, N _2, and the like. And coupled to both ends of the front end of the catalytic converter 12 to reduce, The third and fourth exhaust pipes 14 and 16 for guiding the flow of the combustion gas are coupled to both rear sides of the catalytic converter 12, and the combustion gas is external to the outlets of the third and fourth exhaust pipes 14 and 16. A structure for improving the function of a catalytic converter for a vehicle, to which a fifth exhaust pipe (18) for guiding to be exhausted to a vehicle is coupled.