公开(公告)号：US20210231036A1

公开(公告)日：2021-07-29

申请号：US17145253

申请日：2021-01-08

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Masahiro Kajikawa ,  Masaya Takeuchi ,  Masayuki Sudoh

IPC: F01N1/06 ,  F01N1/02 ,  F01N1/08 ,  F01N13/02 ,  G10K11/172 ,  G10K11/16

Abstract: The present disclosure provides a muffler system that can effectively reduce exhaust noises. The muffler system includes an exhaust passage and a first muffler. The exhaust passage is configured to allow a flow of an exhaust gas. The first muffler is an expansion chamber muffler and disposed in the exhaust passage. The first muffler is situated upstream of a first position in a flow direction of the exhaust gas. The first position is located away from an upstream end of the exhaust passage by one third of an entire length of the exhaust passage.

公开(公告)号：US11635007B2

公开(公告)日：2023-04-25

申请号：US17164233

申请日：2021-02-01

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Masaya Takeuchi ,  Masahiro Kajikawa

IPC: F01N1/02 ,  G10K11/172 ,  G10K11/16

Abstract: One aspect of the present disclosure provides a muffler including an exhaust pipe and a space forming member. The exhaust pipe has a cylindrical shape having a flow passage inside through which exhaust gas passes. The space forming member forms closed spaces between itself and the exhaust pipe, the closed spaces being branched from the flow passage and adjacent to the flow passage. Each of the closed spaces and the flow passage communicate with one another via a single communication hole.

公开(公告)号：US11047289B2

公开(公告)日：2021-06-29

申请号：US16190437

申请日：2018-11-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  FUTABA INDUSTRIAL CO., LTD. ,  SANGO CO., LTD.

Inventor： Nobutaka Yamazaki ,  Masaya Takeuchi ,  Hirotoshi Tanaka

IPC: F01N13/18 ,  B60K13/04 ,  F01N13/16

Abstract: A support structure for an exhaust system part that configures an exhaust system of an internal combustion engine for a vehicle includes a bracket and a support member. The bracket includes a first plate and a second plate. The first plate has both end portions attached to the second plate, and the second plate has both end portions attached to the exhaust system part. A first space is defined between the first plate and the second plate, and a second space is defined between the second plate and the exhaust system part. Each of the first space and the second space has a first open end disposed on the vehicle front side, and has a second open end disposed on the vehicle rear side. The first plate, the first space, the second plate, and the second space are disposed between the support member and the exhaust system part.

公开(公告)号：US10724421B2

公开(公告)日：2020-07-28

申请号：US16154410

申请日：2018-10-08

Applicant: Toyota Jidosha Kabushiki Kaisha ,  Futaba Industrial Co. Ltd.

Inventor： Keiji Utsunomiya ,  Nakaya Takagaki ,  Masaya Takeuchi

IPC: F01N13/18 ,  B60K13/04 ,  F01N13/20 ,  F01N13/08 ,  F01N3/00

Abstract: In an exhaust system of an internal combustion engine, an exhaust pipe is reliably bent and deformed during vehicle rear collision while improving drainage performance in the exhaust pipe in normal times. The exhaust system 1 includes a second pipe 17 corresponding to a downstream end part of an exhaust pipe 10 through which exhaust gas flows from an engine 2. The second pipe 17 includes: a fragile part 30 as a starting point of bending deformation of a tail pipe 13; and a partition plate 20 vertically dividing the inside of the second pipe 17 to form, under the partition plate 20, a lower passage 7 to flow water that accumulates in the exhaust pipe 10. The partition plate 20 is in a vicinity of the fragile part 30 and at a position not overlapping with the fragile part 30 in an axial direction of the second pipe 17.

公开(公告)号：US20190107032A1

公开(公告)日：2019-04-11

申请号：US16154410

申请日：2018-10-08

Applicant: Toyota Jidosha Kabushiki Kaisha ,  Futaba Industrial Co. Ltd.

Inventor： Keiji Utsunomiya ,  Nakaya Takagaki ,  Masaya Takeuchi

IPC: F01N13/18 ,  B60K13/04 ,  F01N13/20

Abstract: In an exhaust system of an internal combustion engine, an exhaust pipe is reliably bent and deformed during vehicle rear collision while improving drainage performance in the exhaust pipe in normal times. The exhaust system 1 includes a second pipe 17 corresponding to a downstream end part of an exhaust pipe 10 through which exhaust gas flows from an engine 2. The second pipe 17 includes: a fragile part 30 as a starting point of bending deformation of a tail pipe 13; and a partition plate 20 vertically dividing the inside of the second pipe 17 to form, under the partition plate 20, a lower passage 7 to flow water that accumulates in the exhaust pipe 10. The partition plate 20 is in a vicinity of the fragile part 30 and at a position not overlapping with the fragile part 30 in an axial direction of the second pipe 17.

公开(公告)号：US11215105B2

公开(公告)日：2022-01-04

申请号：US16232200

申请日：2018-12-26

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Toru Hayakawa ,  Naoki Matsumoto ,  Masaya Takeuchi

IPC: F01N13/18 ,  G10K11/16 ,  G10K11/172 ,  F01N1/00 ,  F01N13/16 ,  G10K11/162

Abstract: A muffler system with a muffler in one aspect of the present disclosure includes an outer wall, and a first separator and a second separator that partition a muffling space. An attachment member is arranged on an outer surface of the outer wall, and a muffler pipe to communicate with the muffling space is arranged to pass through an attachment member hole in the attachment member. The outer surface of the outer wall includes a first area and a second area. The first area is located between a first end of the muffling space and the first separator, and the second area is located between a second end of the muffling space and the second separator. The attachment member is welded to the first and second areas of the outer surface of the outer wall.

公开(公告)号：US20210270158A1

公开(公告)日：2021-09-02

申请号：US17164233

申请日：2021-02-01

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Masaya Takeuchi ,  Masahiro Kajikawa

IPC: F01N1/02 ,  G10K11/16 ,  G10K11/172

Abstract: One aspect of the present disclosure provides a muffler including an exhaust pipe and a space forming member. The exhaust pipe has a cylindrical shape having a flow passage inside through which exhaust gas passes. The space forming member forms closed spaces between itself and the exhaust pipe, the closed spaces being branched from the flow passage and adjacent to the flow passage. Each of the closed spaces and the flow passage communicate with one another via a single communication hole.

公开(公告)号：US20190211737A1

公开(公告)日：2019-07-11

申请号：US16232200

申请日：2018-12-26

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Toru Hayakawa ,  Naoki Matsumoto ,  Masaya Takeuchi

IPC: F01N13/18 ,  F01N1/00 ,  F01N13/16 ,  G10K11/162

CPC classification number: F01N13/1838 ,  F01N1/003 ,  F01N13/16 ,  F01N2530/04 ,  G10K11/162

Abstract: A muffler system with a muffler in one aspect of the present disclosure includes an outer wall, and a first separator and a second separator that partition a muffling space. An attachment member is arranged on an outer surface of the outer wall, and a muffler pipe to communicate with the muffling space is arranged to pass through an attachment member hole in the attachment member. The outer surface of the outer wall includes a first area and a second area. The first area is located between a first end of the muffling space and the first separator, and the second area is located between a second end of the muffling space and the second separator. The attachment member is welded to the first and second areas of the outer surface of the outer wall.