Vehicle muffler

Patent metadata

Field	Value
Publication number	US-10895181-B2
Application number	US-201816033619-A
Country	US
Kind code	B2
Filing date	Jul 12, 2018
Priority date	Mar 29, 2018
Publication date	Jan 19, 2021
Grant date	Jan 19, 2021

Abstract

A vehicle muffler may include first to third baffles to partition the internal to a housing into first to fourth chambers; a suction tube penetrating the housing, the first to third baffles in series, having an inlet at outside of the housing and an outlet in the fourth chamber, and having through-holes in the section locating in the first to third chambers; a first discharge tube penetrating the first and second baffles and the housing in series, having an inlet on the first baffle, and an outlet at outside of the housing; a second discharge tube penetrating the second and third baffles, and the housing in series, having an inlet in the second chamber, and an outlet at the outside of the housing; and a connection tube penetrating the second and third baffles in series, having an inlet in the second chamber, and an outlet in the fourth chamber.

First claim

What is claimed is:

1. A vehicle muffler, comprising:
a first baffle, a second baffle, and a third baffle disposed in series to partition an internal of a housing into a first chamber, a second chamber, a third chamber, and a fourth chamber along a longitudinal direction of the housing;
a suction tube disposed to penetrate the housing, the first baffle, the second baffle, and the third baffle in series, having an inlet located at an outside of the housing, having an outlet located in the fourth chamber, and formed with a first through-hole in a section of the suction tube located in the first chamber, a second through-hole in a section of the suction tube located in the second chamber, and a third through-hole in a section of the suction tube located in the third chamber;
a first discharge tube disposed to penetrate the first baffle, the second baffle, and the housing in series, having an inlet located in the first chamber, and having an outlet located at the outside of the housing;
a second discharge tube disposed to penetrate the second baffle, the third baffle, and the housing in series, having an inlet located in the second chamber, and having an outlet located at the outside of the housing; and
a connection tube disposed to penetrate the second baffle and the third baffle in series, having an inlet located in the second chamber, and having an outlet located in the fourth chamber.

2. The vehicle muffler according to claim 1 , wherein the first chamber is formed between the internal of the housing and the first baffle, the second chamber is formed between the first baffle and the second baffle, the third chamber is formed between the second baffle and the third baffle, and the fourth chamber is formed between the third baffle and the internal of the housing.

3. The vehicle muffler according to claim 1 , wherein the first discharge tube is disposed to penetrate the first baffle and the second baffle along a longitudinal axis of the housing and bent to form a L-shape to have the outlet of the first discharge tube located at the outside of the housing.

4. The vehicle muffler according to claim 1 , wherein the second discharge tube is disposed to penetrate the second baffle and the third baffle along a longitudinal axis of the housing and bent to form a L-shape to have the outlet of the second discharge tube located at the outside of the housing.

5. The vehicle muffler according to claim 1 , wherein the housing is provided to have a first side surface in the width direction thereof penetrated by the inlet of the suction tube and to have a second side surface in the width direction thereof penetrated by the outlet of the first discharge tube and the outlet of the second discharge tube, respectively.

6. The vehicle muffler according to claim 5 , wherein the suction tube includes a first straight section extending along a width direction of the housing in the first chamber, a bending section extending from the first straight section to be bent toward the first baffle, and a second straight section extending from the bending section along the longitudinal direction of the housing to penetrate the first baffle, the second baffle, and the third baffle in series.

7. The vehicle muffler according to claim 6 , wherein the first through-hole is formed in the first straight section of the suction tube, and the second through-hole is formed in the second straight section locating in the second chamber and the third through-hole is in the second straight section locating in the third chamber.

8. The vehicle muffler according to claim 7 , wherein the first baffle is formed with at least a first connection hole, and wherein the second baffle is formed with at least a second connection hole.

9. The vehicle muffler according to claim 8 , further including a cap mounted at the outlet of the suction tube and sealing the outlet of the suction tube.

10. The vehicle muffler according to claim 8 , wherein a sound absorption material is filled in the third chamber.

11. The vehicle muffler according to claim 8 ,
wherein the first baffle has the suction tube and the first discharge tube penetrated at a middle portion of the first baffle, and the at least one first connection hole includes a plurality of connection hole formed at a first side and a second side of the first baffle based on the middle portion, respectively, and
wherein the second baffle has the suction tube and the first discharge tube penetrated at a middle portion of the second baffle, has the second discharge tube penetrated at a first side of the second baffle based on the middle portion of the second baffle, and has a plurality of connection holes formed at a second side of the second baffle.

12. The vehicle muffler according, to claim 8 , wherein the first discharge tube includes a plurality of through-holes formed in a section locating in the second chamber.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Ahn Hyeon Gyun

Classifications

• F01N2470/02

  Tubes being perforated · CPC title

• F01N1/10

  in combination with sound-absorbing materials (F01N1/125 takes precedence) · CPC title

• F01N1/083 Primary

  using transversal baffles defining a tortuous path for the exhaust gases or successively throttling exhaust gas flow · CPC title

• F01N1/082

  by passing the exhaust gases through porous members · CPC title

• F01N2490/02

  Two or more expansion chambers in series connected by means of tubes · CPC title