JPS56167811A - Exhaust apparatus for motor bicycle - Google Patents

Exhaust apparatus for motor bicycle

Info

Publication number
JPS56167811A
JPS56167811A JP7118680A JP7118680A JPS56167811A JP S56167811 A JPS56167811 A JP S56167811A JP 7118680 A JP7118680 A JP 7118680A JP 7118680 A JP7118680 A JP 7118680A JP S56167811 A JPS56167811 A JP S56167811A
Authority
JP
Japan
Prior art keywords
muffling
sections
partition plate
shell
rigidity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7118680A
Other languages
Japanese (ja)
Other versions
JPS6329083B2 (en
Inventor
Shigeki Kawakita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP7118680A priority Critical patent/JPS56167811A/en
Publication of JPS56167811A publication Critical patent/JPS56167811A/en
Publication of JPS6329083B2 publication Critical patent/JPS6329083B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exhaust Silencers (AREA)

Abstract

PURPOSE: To reduce the generation of a shell noise without checking the muffling and pulsation effects by arranging a hole on a partition plate fixed in a muffling chamber to be divided into two sections in such a manner as to communicate both sections.
CONSTITUTION: A partition plate 5 is fixed at the center of a shell surrounding the outer surface of a muffling chamber 2 to be divided into two sections. A hole 5a is provided through the partition plate 5 so as to communicate both the sections while a convex section 5b is provided to enhance the rigidity thereof. A metal screen 6 is fastened on the inner wall surface of the shell 4 to enhance the rigidity and increase the muffling effect. The exhaust gas alternately discharged from four exhaust pipes 1, 1, 1 and 1 is fed into the muffling chamber 2 and expanded causing a pressure change. But a higher rigidity by the partition plate 5 can reduce the shell noise eliminating large vibration of the wall surface. Moreover, the communicating hole 5a prevents the checking of muffling and pulsation effects.
COPYRIGHT: (C)1981,JPO&Japio
JP7118680A 1980-05-28 1980-05-28 Exhaust apparatus for motor bicycle Granted JPS56167811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7118680A JPS56167811A (en) 1980-05-28 1980-05-28 Exhaust apparatus for motor bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7118680A JPS56167811A (en) 1980-05-28 1980-05-28 Exhaust apparatus for motor bicycle

Publications (2)

Publication Number Publication Date
JPS56167811A true JPS56167811A (en) 1981-12-23
JPS6329083B2 JPS6329083B2 (en) 1988-06-10

Family

ID=13453366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7118680A Granted JPS56167811A (en) 1980-05-28 1980-05-28 Exhaust apparatus for motor bicycle

Country Status (1)

Country Link
JP (1) JPS56167811A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59130018U (en) * 1983-02-18 1984-08-31 トヨタ自動車株式会社 Internal combustion engine exhaust system
JPS59152126U (en) * 1983-03-31 1984-10-12 スズキ株式会社 motorcycle exhaust system
US5271480A (en) * 1991-09-11 1993-12-21 Yamaha Hatsudoki Kabushiki Kaisha Device for protecting oxygen sensor of motocycle
JP2007107439A (en) * 2005-10-13 2007-04-26 Nissan Motor Co Ltd Exhaust device for internal combustion engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142686A (en) * 1974-10-04 1976-04-10 Shinnippon Garasu Kk BINNOGAIMENHI FUKUSOCHI
JPS5439740A (en) * 1977-09-05 1979-03-27 Yamaha Motor Co Ltd Connection structure of mufflers
JPS5546045A (en) * 1978-09-29 1980-03-31 Yamaha Motor Co Ltd Muffler for autobicycle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142686A (en) * 1974-10-04 1976-04-10 Shinnippon Garasu Kk BINNOGAIMENHI FUKUSOCHI
JPS5439740A (en) * 1977-09-05 1979-03-27 Yamaha Motor Co Ltd Connection structure of mufflers
JPS5546045A (en) * 1978-09-29 1980-03-31 Yamaha Motor Co Ltd Muffler for autobicycle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59130018U (en) * 1983-02-18 1984-08-31 トヨタ自動車株式会社 Internal combustion engine exhaust system
JPH0114733Y2 (en) * 1983-02-18 1989-04-28
JPS59152126U (en) * 1983-03-31 1984-10-12 スズキ株式会社 motorcycle exhaust system
JPH0114732Y2 (en) * 1983-03-31 1989-04-28
US5271480A (en) * 1991-09-11 1993-12-21 Yamaha Hatsudoki Kabushiki Kaisha Device for protecting oxygen sensor of motocycle
JP2007107439A (en) * 2005-10-13 2007-04-26 Nissan Motor Co Ltd Exhaust device for internal combustion engine

Also Published As

Publication number Publication date
JPS6329083B2 (en) 1988-06-10

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