公开(公告)号：US11220949B2

公开(公告)日：2022-01-11

申请号：US16171886

申请日：2018-10-26

申请人： Taiki Teramoto ,  Takato Ishihata ,  Takehiro Miura ,  Akira Yamamoto

发明人： Taiki Teramoto ,  Takato Ishihata ,  Takehiro Miura ,  Akira Yamamoto

IPC分类号： F01N1/02 ,  F01N1/08 ,  F01N13/00 ,  F01N13/18 ,  F01N1/00 ,  F01N13/02

摘要： An exhaust silencer device which is interposed in an exhaust passage in a vehicle to reduce exhaust noise comprises a sub-muffler which is interposed in the exhaust passage and has an expansion chamber formed therein; an inlet pipe which is airtightly inserted through an inlet opening of the sub-muffler; and an outlet pipe which is airtightly inserted through an outlet opening of the sub-muffler, wherein the inlet pipe and the outlet pipe are formed with openings (small apertures, non-joined portions) only in their upper half area and their lower half area is sealed without having the openings.

公开(公告)号：US20190136740A1

公开(公告)日：2019-05-09

申请号：US16171886

申请日：2018-10-26

申请人： Taiki TERAMOTO ,  Takato ISHIHATA ,  Takehiro MIURA ,  Akira YAMAMOTO

发明人： Taiki TERAMOTO ,  Takato ISHIHATA ,  Takehiro MIURA ,  Akira YAMAMOTO

IPC分类号： F01N13/18 ,  F01N13/02 ,  F01N1/00

摘要： An exhaust silencer device which is interposed in an exhaust passage in a vehicle to reduce exhaust noise comprises a sub-muffler which is interposed in the exhaust passage and has an expansion chamber formed therein; an inlet pipe which is airtightly inserted through an inlet opening of the sub-muffler; and an outlet pipe which is airtightly inserted through an outlet opening of the sub-muffler, wherein the inlet pipe and the outlet pipe are formed with openings (small apertures, non-joined portions) only in their upper half area and their lower half area is sealed without having the openings.