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GB1513473A - Method and apparatus for silencing the exhaust noise of internal combustion engines - Google Patents

Method and apparatus for silencing the exhaust noise of internal combustion engines

Info

Publication number
GB1513473A
GB1513473A GB3447375A GB3447375A GB1513473A GB 1513473 A GB1513473 A GB 1513473A GB 3447375 A GB3447375 A GB 3447375A GB 3447375 A GB3447375 A GB 3447375A GB 1513473 A GB1513473 A GB 1513473A
Authority
GB
United Kingdom
Prior art keywords
aug
outlet
silencer chamber
silencer
nov
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.)
Expired
Application number
GB3447375A
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
Priority claimed from JP9861774A external-priority patent/JPS5125640A/en
Priority claimed from JP9939574A external-priority patent/JPS5125641A/en
Priority claimed from JP49133447A external-priority patent/JPS5159131A/en
Priority claimed from JP14039474U external-priority patent/JPS5166646U/ja
Priority claimed from JP14440374U external-priority patent/JPS5170350U/ja
Priority claimed from JP1974152827U external-priority patent/JPS5441245Y2/ja
Priority claimed from JP49146194A external-priority patent/JPS5172841A/en
Priority claimed from JP1045775U external-priority patent/JPS5833210Y2/en
Priority claimed from JP1045875U external-priority patent/JPS5193016U/ja
Priority claimed from JP2871375U external-priority patent/JPS5528813Y2/ja
Priority claimed from JP4852375U external-priority patent/JPS51129944U/ja
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Publication of GB1513473A publication Critical patent/GB1513473A/en
Expired legal-status Critical Current

Links

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
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
    • 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
    • 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
    • F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

1513473 Silencers for IC engines YAMAHA HATSUDOKI KK 19 Aug 1975 [28 Aug 1974 29 Aug 1974 20 Nov 1974 (2) 29 Nov 1974 17 Dec 1974 19 Dec 1974 22 Jan 1975 (2) 3 March 1975 10 April 1975] 34473/75 Heading F1B Low frequency noise (300-1000Hz) is reduced by passing exhaust from an I.C. engine 2 into a silencer chamber 5 having a sound reflecting wall 5a and an outlet or outlets 17 set adjacent a node 12 formed by a standing wave of a dominant frequency. Several reflecting walls may be provided in an attempt to locate the nodes of standing waves of several frequencies adjacent the outlet(s). Alternatively the reflecting wall or the outlet can be made laterally movable for adjustment of the position of a node, according to engine speed or temperature. After passing from the silencer chamber 5, the gases may pass to a high frequency muffler and/or catalyst (not shown). The silencer chamber 5 and muffler may be mounted along the same axis, or (to reduce length) coaxially, or may be mounted one either side of a motor-bike chassis (not shown) and connected by a pipe. Reflective plates or an extra side extension (not shown) may also reduce the silencer length.
GB3447375A 1974-08-28 1975-08-19 Method and apparatus for silencing the exhaust noise of internal combustion engines Expired GB1513473A (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP9861774A JPS5125640A (en) 1974-08-28 1974-08-28 Nainenkikanniokeru haikiatsuryokuha no shorihoho oyobi sochi
JP9939574A JPS5125641A (en) 1974-08-29 1974-08-29 NAINENKIKANNIOKERUHAIKISOON NO SHOONHOHO OYOBI SOCHI
JP49133447A JPS5159131A (en) 1974-11-20 1974-11-20 Nainenkikanno haikimyakudoatsuryokuhano shorihoho oyobi sochi
JP14039474U JPS5166646U (en) 1974-11-20 1974-11-20
JP14440374U JPS5170350U (en) 1974-11-29 1974-11-29
JP1974152827U JPS5441245Y2 (en) 1974-12-17 1974-12-17
JP49146194A JPS5172841A (en) 1974-12-19 1974-12-19 Nainenkikan ni okeru haikiatsuryokuha no shorisochi
JP1045775U JPS5833210Y2 (en) 1975-01-22 1975-01-22 Jido 2
JP1045875U JPS5193016U (en) 1975-01-22 1975-01-22
JP2871375U JPS5528813Y2 (en) 1975-03-03 1975-03-03
JP4852375U JPS51129944U (en) 1975-04-10 1975-04-10

Publications (1)

Publication Number Publication Date
GB1513473A true GB1513473A (en) 1978-06-07

Family

ID=27581804

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3447375A Expired GB1513473A (en) 1974-08-28 1975-08-19 Method and apparatus for silencing the exhaust noise of internal combustion engines

Country Status (4)

Country Link
CA (1) CA1038770A (en)
DE (1) DE2537946C2 (en)
FR (1) FR2283312A1 (en)
GB (1) GB1513473A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485624A1 (en) * 1980-06-24 1981-12-31 Honda Motor Co Ltd EXHAUST DEVICE FOR VEHICLE
GB2229224A (en) * 1989-03-15 1990-09-19 Zschopau Motorrad Veb I.c. engine exhaust system
GB2321498A (en) * 1997-01-22 1998-07-29 John Stephen Roberts Two-stroke i.c. engine exhaust system with active control of effective tuned le
EP2187124A3 (en) * 2008-11-15 2011-12-21 Ideal Stelrad Group Limited Combustion apparatus incorporating a noise reduction arrangement
US20120318242A1 (en) * 2011-06-20 2012-12-20 Hyundai Motor Company Purge control solenoid valve for reducing noise

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831376A1 (en) * 1978-06-29 1980-01-17 Louis Andersson EXHAUST SYSTEM FOR A PULSATING HEAT SOURCE
DE3417131A1 (en) * 1984-05-09 1985-11-21 LEISTRITZ Maschinenfabrik GmbH, 8500 Nürnberg REFLECTION EXHAUST SILENCER
AT391919B (en) * 1986-05-16 1990-12-27 Steyr Daimler Puch Ag Exhaust system with a catalytic converter for two-stroke internal combustion engines
CS271879B1 (en) * 1988-08-16 1990-12-13 Jaroslav Cervinka Exhaust silencer for internal combustion engines
AT404391B (en) * 1989-11-10 1998-11-25 Pischinger Rudolf Dipl Ing Dr Exhaust system for a two-stroke internal combustion engine
DE202011000524U1 (en) * 2011-03-09 2012-06-12 Makita Corporation Silencer for a motor unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2017748A (en) * 1934-04-30 1935-10-15 Maxim Silencer Co Sound attenuating device
DE647118C (en) * 1934-12-14 1937-06-28 Alfred Reinsch Dr Ing Silencer for two-stroke internal combustion engines of motorcycles with two cylinders with one outlet each or with one cylinder and two outlets
DE1712462U (en) * 1954-06-02 1955-12-08 Auto Union Gmbh EXHAUST SYSTEM FOR TWO-STROKE COMBUSTION MACHINES.
FR1224205A (en) * 1959-02-03 1960-06-22 Normande D Emboutissage Soc Silent device for pulsating gas flow
CH478335A (en) * 1966-03-15 1969-09-15 Andersson Louis silencer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485624A1 (en) * 1980-06-24 1981-12-31 Honda Motor Co Ltd EXHAUST DEVICE FOR VEHICLE
GB2229224A (en) * 1989-03-15 1990-09-19 Zschopau Motorrad Veb I.c. engine exhaust system
GB2321498A (en) * 1997-01-22 1998-07-29 John Stephen Roberts Two-stroke i.c. engine exhaust system with active control of effective tuned le
EP2187124A3 (en) * 2008-11-15 2011-12-21 Ideal Stelrad Group Limited Combustion apparatus incorporating a noise reduction arrangement
US20120318242A1 (en) * 2011-06-20 2012-12-20 Hyundai Motor Company Purge control solenoid valve for reducing noise

Also Published As

Publication number Publication date
FR2283312A1 (en) 1976-03-26
CA1038770A (en) 1978-09-19
FR2283312B1 (en) 1978-04-07
DE2537946A1 (en) 1976-04-01
DE2537946C2 (en) 1984-07-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee