Patent ID: 9212579
Filing Date: 2015-12-15
Classification: F01N

Abstract:
1. A muffler for a vehicle, comprising: a housing which defines a space therein; first and second baffles which partition the space inside the housing into first, second and third chambers which are sequentially arranged therein; an inlet pipe which extends from one side of the housing through the first baffle and the second baffle to be connected to the third chamber through the first chamber and the second chamber such that exhaust gas is introduced from outside through the inlet pipe; an intermediate pipe which connects between the first and third chambers through the first baffle and the second baffle and has a plurality of holes in a portion thereof which is placed in the second chamber; and an outlet pipe which sequentially extends through the first baffle and the second baffle from an first open end inside the first chamber, sequentially extends through the second baffle and the first baffle, sequentially extends through the first baffle and the second baffle, and then extends to the outside of the housing, such that the exhaust gas is discharged to the outside through the outlet pipe; wherein the outlet pipe has a plurality of holes in a portion thereof which is exposed inside the third chamber before extending through the housing; and wherein the inlet pipe, the intermediate pipe, and the outlet pipe are configured such that the portions of the inlet and intermediate pipes which are placed in the first and second baffles are arranged parallel to each other, and a first open end of the inlet e and the holes of the outlet pipe are disposed inside the third chamber so as to be adjacent to each other without an obstacle spatially.