Invention Grant
- Patent Title: Exhaust muffler
-
Application No.: US17200152Application Date: 2021-03-12
-
Publication No.: US11566547B2Publication Date: 2023-01-31
- Inventor: Junya Sato , Ryuta Niimura , Junichiro Suzuki
- Applicant: HONDA MOTOR CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: HONDA MOTOR CO., LTD.
- Current Assignee: HONDA MOTOR CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Carrier Shende & Associates, P.C.
- Agent Joseph P. Carrier; Fulchand P. Shende
- Priority: JPJP2020-063575 20200331
- Main IPC: F01N1/18
- IPC: F01N1/18 ; F01N1/02 ; F01N1/08

Abstract:
An exhaust muffler has an outer cylinder into which an exhaust gas from an engine is introduced and a muffling member made of a foamed ceramic material. The outer cylinder has an inner cylinder through which the exhaust gas passes, a part of the muffling member is supported by an outer wall of the inner cylinder via a holding member. The inner cylinder includes, in an area where the inner cylinder overlaps with the muffling member with respect to axial direction of the inner cylinder, a porous wall portion formed with communication holes communicating an inside and an outside of the inner cylinder. The holding member is arranged at a position where it does not overlap with a part of the porous wall portion, so that muffling effect is enhanced, and the muffling member having a low resistance to impact forces can be supported stably by the inner cylinder.
Public/Granted literature
- US20210301693A1 EXHAUST MUFFLER Public/Granted day:2021-09-30
Information query