公开(公告)号：US11199116B2

公开(公告)日：2021-12-14

申请号：US15955252

申请日：2018-04-17

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Gabriel Ostromecki ,  Ankit Barot

IPC: F01N1/08 ,  F01N1/00

Abstract: A muffler for receiving exhaust gas from a combustion engine may include a shell, an inlet pipe, at least one outlet pipe, one or more baffles, and an internal communication pipe. The inlet pipe may extend through the shell. The outlet pipe may be in fluid communication with the inlet pipe and may be at least partially disposed within the shell. The baffles are disposed within the shell and cooperate with the shell to define a plurality of chambers. The internal communication pipe may be disposed entirely within the shell and may be in fluid communication with the inlet pipe. The internal communication pipe may include an inlet opening and first and outlet openings. The first outlet opening is open to and in direct fluid communication with one of the chambers. The second outlet opening is open to and in direct fluid communication with another one of the chambers.