JPS5582849A - Engine noise suppressor - Google Patents

Engine noise suppressor

Info

Publication number
JPS5582849A
JPS5582849A JP15520678A JP15520678A JPS5582849A JP S5582849 A JPS5582849 A JP S5582849A JP 15520678 A JP15520678 A JP 15520678A JP 15520678 A JP15520678 A JP 15520678A JP S5582849 A JPS5582849 A JP S5582849A
Authority
JP
Japan
Prior art keywords
projection
space
engine noise
accomodates
crankshaft
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
JP15520678A
Other languages
Japanese (ja)
Other versions
JPS6218782B2 (en
Inventor
Takahide Hagiwara
Toshiyuki Sakakibara
Akifumi Oishi
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 JP15520678A priority Critical patent/JPS5582849A/en
Publication of JPS5582849A publication Critical patent/JPS5582849A/en
Publication of JPS6218782B2 publication Critical patent/JPS6218782B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To control engine noise effectively, by putting elastic members in the rational direction between a crankshaft and a gear above the crankshaft for transmitting the turning moment.
CONSTITUTION: A hermetic space 60 accomodates rubbery elastic member 64, 66 between a projection 52B of inner unit 52 and a projection 20A of smaller gear 20. Provided that the crankshaft 16 is turned in the X direction, the space between the front side of the projection 52B and the projection 20A accomodates the larger elastic member 64, while the space between the rear side and the projection 20A accomodates the smaller one 66. The elastic member is of an arched shape with a nearly square cross section, which is similar to the shape of space 60, and has a stepped portion 64A on both ends each to form a flank. This construction can effectively reduce engine noise caused by fluctuation of revolution.
COPYRIGHT: (C)1980,JPO&Japio
JP15520678A 1978-12-15 1978-12-15 Engine noise suppressor Granted JPS5582849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15520678A JPS5582849A (en) 1978-12-15 1978-12-15 Engine noise suppressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15520678A JPS5582849A (en) 1978-12-15 1978-12-15 Engine noise suppressor

Publications (2)

Publication Number Publication Date
JPS5582849A true JPS5582849A (en) 1980-06-21
JPS6218782B2 JPS6218782B2 (en) 1987-04-24

Family

ID=15600815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15520678A Granted JPS5582849A (en) 1978-12-15 1978-12-15 Engine noise suppressor

Country Status (1)

Country Link
JP (1) JPS5582849A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134361A (en) * 1980-10-20 1982-08-19 Citroen Sa Revolution auxiliary device particularly for car steering
JPS5946323A (en) * 1982-02-26 1984-03-15 ゲトラ−グ・ゲトリ−ベウントツア−ンラツド・フアブリツク・ゲ−エムバ−ハ− Arrangement apparatus containing internal combustion engine and transmission
JPS63135617A (en) * 1986-11-28 1988-06-08 Norin Kikai Kenkyusho:Kk Shaft coupling device
JP2013019479A (en) * 2011-07-12 2013-01-31 Yamaha Motor Co Ltd Transmission apparatus and saddle type vehicle including the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135275U (en) * 1975-04-24 1976-11-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135275U (en) * 1975-04-24 1976-11-01

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134361A (en) * 1980-10-20 1982-08-19 Citroen Sa Revolution auxiliary device particularly for car steering
JPS5946323A (en) * 1982-02-26 1984-03-15 ゲトラ−グ・ゲトリ−ベウントツア−ンラツド・フアブリツク・ゲ−エムバ−ハ− Arrangement apparatus containing internal combustion engine and transmission
JPS63135617A (en) * 1986-11-28 1988-06-08 Norin Kikai Kenkyusho:Kk Shaft coupling device
JP2013019479A (en) * 2011-07-12 2013-01-31 Yamaha Motor Co Ltd Transmission apparatus and saddle type vehicle including the same

Also Published As

Publication number Publication date
JPS6218782B2 (en) 1987-04-24

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