US20190195099A1 - Exhaust device of engine - Google Patents

Exhaust device of engine Download PDF

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Publication number
US20190195099A1
US20190195099A1 US16/218,009 US201816218009A US2019195099A1 US 20190195099 A1 US20190195099 A1 US 20190195099A1 US 201816218009 A US201816218009 A US 201816218009A US 2019195099 A1 US2019195099 A1 US 2019195099A1
Authority
US
United States
Prior art keywords
expansion chamber
communication pipe
casing
muffler
exhaust
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.)
Abandoned
Application number
US16/218,009
Other languages
English (en)
Inventor
Takahito TOMOBE
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.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Assigned to SUZUKI MOTOR CORPORATION reassignment SUZUKI MOTOR CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Tomobe, Takahito
Publication of US20190195099A1 publication Critical patent/US20190195099A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/084—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/02—Two or more expansion chambers in series connected by means of tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/02—Two or more expansion chambers in series connected by means of tubes
    • F01N2490/06—Two or more expansion chambers in series connected by means of tubes the gases flowing longitudinally from inlet to outlet in opposite directions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/08—Two or more expansion chambers in series separated by apertured walls only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/04—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for motorcycles

Definitions

  • a vehicle or the like provided with an engine includes an exhaust pipe through which an exhaust gas from the engine flows and a muffler provided on a downstream side of the exhaust pipe.
  • the muffler has a function to reduce exhaust noise. That is, a communication path for causing a plurality of expansion chambers and expansion chambers to communicate with one another is formed in a casing of the muffler.
  • the exhaust gas discharged from the engine and flowing into the muffler via the exhaust pipe is expanded and attenuated in stages in the process of passing through the expansion chambers and the communication path. As a result, the exhaust noise is reduced (see, for example, JP H1-290913 A below).
  • FIG. 10 is a sectional view illustrating the muffler as viewed from the direction of arrows X-X in FIG. 8 ;
  • the casing 21 is formed in a cylindrical shape long in an axial direction and is arranged such that an axis X the casing 21 faces from a front lower side to a rear upper side in a right-side region of the rear wheel 6 of the motorcycle 1 .
  • the casing 21 includes a casing body 22 formed in a cylindrical shape.
  • the casing body 22 has a double cylinder structure including an outer cylinder 23 and an inner cylinder 24 . Further, as illustrated in FIG.
  • a cover 27 is attached to the rear lid portion 26 , and a hole portion 27 A for allowing the third communication pipe 33 to pass through is also formed in the cover 27 .
  • These portions of the casing 21 are formed of a metal material such as stainless steel, iron, or titanium, and are joined by means such as welding or screwing.
  • the effect to suppress the decrease in engine output is enhanced when the volume of the first-stage expansion chamber to which the exhaust pipe is connected is increased in the muffler.
  • the first-stage expansion chamber Rc is functionally formed by the first expansion chamber R 1 , the third expansion chamber R 3 , and the first communication pipe 31 as a whole. Therefore, the volume of the first-stage expansion chamber Rc is a value of a total of the respective volumes of the first expansion chamber R 1 , the third expansion chamber R 3 , and the first communication pipe 31 .
  • FIG. 7 illustrates a downstream side of a rear exhaust pipe 54 and a muffler 55 in an exhaust device of a second embodiment of the present invention.
  • FIG. 8 illustrates a cross section of the muffler 55 as viewed from the directions of arrows VIII-VIII in FIG. 7 .
  • FIG. 9 illustrates a longitudinal section of the muffler 55 as viewed from the direction of arrows IX-IX in FIG. 8
  • FIG. 10 illustrates a longitudinal section of the muffler 55 as viewed from the direction of arrows X-X in FIG. 8
  • FIG. 11 illustrates a longitudinal section of the muffler 55 as viewed from the direction of arrows XI-XI in FIG. 8 .
  • the same constituent element as the exhaust device 8 of the first embodiment of the present invention is denoted by the same reference numeral and description of the constituent element is omitted.
  • the rear exhaust pipe 54 is arranged on a lower left side of a center of the casing 21 , through which an axis X of the casing 21 passes, the one first communication pipe 61 A is arranged on a upper right side of the center of the casing 21 , and the other first communication pipe 61 B is arranged on a upper left side of the center of the casing 21 .
  • a second communication pipe 32 is arranged on a lower right side of the center of the casing 21
  • a third communication pipe 33 is arranged on an upper side of the center of the casing 21 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
US16/218,009 2017-12-27 2018-12-12 Exhaust device of engine Abandoned US20190195099A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017251533A JP7081144B2 (ja) 2017-12-27 2017-12-27 エンジンの排気装置
JP2017-251533 2017-12-27

Publications (1)

Publication Number Publication Date
US20190195099A1 true US20190195099A1 (en) 2019-06-27

Family

ID=66768443

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/218,009 Abandoned US20190195099A1 (en) 2017-12-27 2018-12-12 Exhaust device of engine

Country Status (4)

Country Link
US (1) US20190195099A1 (ja)
JP (1) JP7081144B2 (ja)
CN (1) CN109973174B (ja)
DE (1) DE102018221649A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11174767B2 (en) * 2017-08-31 2021-11-16 Suzuki Motor Corporation Air exhausting device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7252092B2 (ja) * 2019-08-20 2023-04-04 カワサキモータース株式会社 排気装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS554488Y2 (ja) * 1974-05-10 1980-02-01
JPS5431839A (en) * 1977-08-15 1979-03-08 Toyota Motor Corp Muffler for internal combustion engine
JPS62122U (ja) * 1985-06-15 1987-01-06
JPH0745806B2 (ja) * 1986-11-21 1995-05-17 カルソニック株式会社 消音器
JP2723948B2 (ja) * 1988-02-18 1998-03-09 マツダ株式会社 エンジンの制御装置
JP2725181B2 (ja) * 1988-05-19 1998-03-09 スズキ株式会社 自動二輪車用マフラの放熱装置
JP3264136B2 (ja) * 1994-05-09 2002-03-11 日産自動車株式会社 自動車用排気消音装置
JP3326996B2 (ja) * 1994-10-12 2002-09-24 日産自動車株式会社 自動車用排気消音装置
US5614699A (en) * 1994-05-09 1997-03-25 Nissan Motor Co., Ltd. Automobile exhaust noise suppressor
MX9801283A (es) * 1995-08-17 1998-05-31 Arvin Ind Inc Atenuador de sonido con sintonizador de garganta.
JPH0996217A (ja) * 1995-09-29 1997-04-08 Honda Motor Co Ltd 自動二輪車の排気装置
JP3508471B2 (ja) * 1997-06-18 2004-03-22 日産自動車株式会社 自動車用排気消音装置
DE20102214U1 (de) * 2001-02-08 2001-08-09 Alessandro Luigi D Abgasschalldämpfer
CN100451305C (zh) * 2004-08-13 2009-01-14 雅马哈发动机株式会社 机车的排气管
JP2014105617A (ja) * 2012-11-27 2014-06-09 Yamaha Motor Co Ltd マフラーおよび鞍乗型車両
CN203742714U (zh) * 2014-03-11 2014-07-30 湖北创奇汽车零部件有限公司 一种降低风噪的消声器
BR112018016652A2 (ja) * 2016-03-17 2018-12-26 Honda Motor Co., Ltd. The exhaust of an internal-combustion engine
CN206458524U (zh) * 2016-12-29 2017-09-01 集瑞联合重工有限公司 一种新型催化消声器总成

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11174767B2 (en) * 2017-08-31 2021-11-16 Suzuki Motor Corporation Air exhausting device

Also Published As

Publication number Publication date
CN109973174A (zh) 2019-07-05
DE102018221649A1 (de) 2019-06-27
JP2019116874A (ja) 2019-07-18
CN109973174B (zh) 2022-08-05
JP7081144B2 (ja) 2022-06-07

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AS Assignment

Owner name: SUZUKI MOTOR CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TOMOBE, TAKAHITO;REEL/FRAME:047758/0224

Effective date: 20181212

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

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Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION