KR200171859Y1 - A muffler for automobile - Google Patents

Abstract

The present invention relates to a vehicle muffler designed to provide a simple noise and excellent noise action.

The muffler of the present invention is installed in the suction tube 102 and the discharge tube 103 and the partitions 104, 105 made of porous tubing inside the circular or oval body 101, divided into partitions 104, 105 The rear end of the narrowed diameter of the suction pipe 102 and the tip of the enlarged diameter of the discharge pipe 103 are located in the space 109 of the center 108, 109, 110 of the space inside the body 101. Located close to each other, the muffler 100 and the triangular body 201 by installing sound-absorbing material 106, 107 in place in the space 108, 110 through which the suction pipe 102 and the discharge pipe 103 pass. The suction pipe 202 and the discharge pipe 203 made of porous tubs and partition walls 204 and 205 through which the holes 204a and 205a are drilled, respectively, and the rear end of the suction pipe 202 is partitioned. The tip of the discharge pipe 203 in the space 207 of the spaces 207, 208, and 209 in the body 201 divided into the partitions 204 and 205. In addition, the space 209 is characterized in that it comprises a rear muffler 200 by providing a sound absorbing material 206.

Description

Automotive muffler {A MUFFLER FOR AUTOMOBILE}

The present invention relates to the improvement of the muffler (muffler), which is used in automobiles, and particularly, the front muffler having improved noise means in the circular body and the improved noise means in the triangular body. The present invention relates to a motor vehicle muffler designed to provide an ideal noise effect by a combination configuration of a rear part muffler installed.

Many types of automobile mufflers have been proposed and used in the past, but the configuration is relatively simple and easy to manufacture is low in noise effect and good in noise effect is too complicated. It had problems deteriorating early.

Accordingly, the present invention has been made for the purpose of providing a further improved automotive muffler that can provide an ideal noise action while effectively solving the above conventional problems.

1 is a cross-sectional view of the entire muffler of the present invention,

2 is a cross-sectional view taken along the line II-II of FIG. 1;

3 is a cross-sectional view taken along line III-III of FIG. 1;

4 is a cross-sectional view of the rear muffler of the present invention;

5 is a cross-sectional view taken along the line VV of FIG. 4;

6 is a cross-sectional view taken along the line VI-VI of FIG. 4.

Explanation of symbols on the main parts of the drawings

100: all muffler 101: all muffler body 102: suction pipe

102a: suction pipe hole 102b: rear of the suction pipe 103: discharge pipe

103a: outlet pipe hole 103b: front part of the discharge pipe 104,105: partition wall

106,107 sound absorbing material 108,109,110: space 200: rear muffler

201: rear muffler body 202: suction pipe 202a: suction pipe hole

203: discharge pipe 204, 205: partition 204a, 205a: partition hole

206: Sound absorbing material 207, 208, 209: Space

The present invention for achieving the above object has a circular or elliptical body, and has a muffler, a triangular body, and a total muffler having a suction tube and an outlet tube, a partition tube, a sound absorbing material, etc. Provided is an automobile muffler comprising a rear muffler provided with a suction tube and a discharge tube made of a porous tube, and partition walls and sound absorbing materials.

In the following, the present invention will be described in more detail based on the embodiments illustrated in the accompanying drawings.

The present invention consists of a combination of the entire muffler 100 as in the example illustrated in FIGS. 1 to 3 and the rear muffler 200 as the example illustrated in FIGS. 4 to 6.

All the muffler 100 of the present invention is the suction pipe 102 and the discharge pipe 103, the partition 104, 105 inside the body 101 of the hollow circular or elliptical cross-sectional shape as shown in Figs. And the sound absorbing materials 106 and 107 in the illustrated embodiment. The suction tube 102 made of a porous tubular with a plurality of holes 102a is configured such that the body rear portion 102b supported by the partition 104 has a gradually narrower diameter, and the rear portion 102b of the narrower diameter thereof. The body 101 is positioned along a central portion of the body 101 and is disposed along the longitudinal direction of the body 101 at one side of the body 101. In addition, the discharge tube 103 made of a porous tubular through which a plurality of holes 103a are drilled is configured such that the trunk front portion 103b supported by the partition wall 105 has an enlarged trumpet shape. The front portion 103b of the diameter is disposed along the lengthwise direction of the body 101 on the other side inside the body 101 such that the front portion 103b is close to the rear portion 102b of the suction pipe 102. The interior of the body 101 of the muffler 100 is divided into a plurality of spaces 108, 109, 110 by the partitions 104, 105, among which the space 109 is located at the center. The rear portion 102b of the suction pipe 102 and the front portion 103b of the discharge pipe 103 are located inside, and the sound absorbing material 106 is disposed at an internal location of the space 108 through which the suction pipe 102 passes. Sound absorbing material 107 is disposed in the space 110 through which the through positions are provided. A plurality of holes 104a are drilled in the front of the partitions 104 and 105, as shown in FIG. 2, whereas in the rear partition 105 as shown in FIG. No holes

Meanwhile, the rear muffler 200 has a suction pipe 202 and a discharge pipe 203, partition walls 204 and 205, and a sound absorbing material inside the body 201 having a triangular cross-sectional shape as shown in FIGS. 206 is provided in the illustrated embodiment. The suction tube 202, which is a porous tubular with a plurality of holes 202a, is positioned so that its front end is located at the front end surface of the body 201, and its rear end is located on the partition wall 205 so that the interior of the body 201 is formed. The discharge pipe 203, which is disposed along the longitudinal direction of the body 201 on one side and is also made of a porous tube, in which a plurality of holes are drilled, has a distal end of the body 201 in which the front end is divided into partitions 204 and 205. One of the spaces 207, 208, and 209 is positioned in place in the frontmost space 207, and the rear end thereof is disposed on the other end of the body 201 so as to be located at the rear end surface of the body 201. . The sound absorbing material 206 is disposed in the space 209 of the spaces. The partitions 204 and 205 of the rear muffler 200 are bored with holes 204a and 204b as shown in Figs. The rear muffler 200 is entirely connected to the rear end of the discharge pipe 103 of the muffler 100 through the front end portion of the suction pipe 202 through a conventional connecting pipe means.

In operation, the engine exhaust gas that has passed through the suction pipe 102 of the muffler 100 is first discharged and expanded into the space 109 between the partition wall 104 and the partition wall 105 to achieve negative attenuation and at the same time the suction pipe ( The sound effect is doubled by the sound absorbing material 106 surrounding the 102. In addition, the exhaust gas discharged through the suction pipe 102 is negatively attenuated while shrinking and expanding again while the tip portion is introduced into the discharge pipe 103 expanded into a trumpet shape, and is disposed around the discharge pipe 103. The sound absorbing material 107 doubles the noise effect. Exhaust gas passing through the exhaust pipe 103 of all the muffler 100 passes through a connecting pipe (not shown) and into the suction pipe 202 of the rear muffler 200, and there are post-expanded holes 204a in the space 208. It enters into the space 207 through the partition 204 and is discharged into the discharge pipe 203. On the other hand, when the exhaust gas exiting the suction pipe 202 expands in the space 208, the gas is discharged into the space 209 through another partition 205 having holes 205a, and the space 209 Noise reduction is achieved by the sound absorbing material 206 disposed in the ().

Therefore, the present invention provides an ideal noise action by providing a combination of the whole muffler 100 and the rear muffler 200 as simple as possible while providing a very effective noise action by repeating the multi-step expansion, contraction and sound absorption as described above. It is easy to manufacture in one configuration and provides an excellent effect for long life.

Claims (1)

The body 101 divided into partitions 104 and 105 is provided with a suction tube 102 and a discharge tube 103 and partitions 104 and 105 made of porous tubing inside the circular or elliptical body 101. The rear end of the narrower diameter of the suction pipe 102 and the tip of the enlarged diameter of the discharge pipe 103 are located close to each other in the space 109 of the center of the spaces 108, 109, 110 of the interior. The muffler 100 is provided by installing sound absorbing materials 106 and 107 in place in the spaces 108 and 110 through which the suction pipe 102 and the discharge pipe 103 pass. Inside the triangular body 201, a suction tube 202 and a discharge tube 203 made of porous tubs and partition walls 2040 205 through which holes 204a and 205a are drilled, respectively, and a rear end of the suction tube 202 is provided. The discharge pipe 203 in the space 207 of the spaces 207, 208, and 209 in the body 201, which is located on the partition 205 and divided into the partitions 204, 205. A muffler for automobiles, characterized in that it comprises a rear muffler (200) provided with a sound absorbing material (206) in a space (209).