GB1496206A - Wave interference exhaust silencer - Google Patents

Wave interference exhaust silencer

Info

Publication number
GB1496206A
GB1496206A GB1794975A GB1794975A GB1496206A GB 1496206 A GB1496206 A GB 1496206A GB 1794975 A GB1794975 A GB 1794975A GB 1794975 A GB1794975 A GB 1794975A GB 1496206 A GB1496206 A GB 1496206A
Authority
GB
United Kingdom
Prior art keywords
openings
tube
inner tube
flow
path
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
GB1794975A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 US466526A external-priority patent/US3888331A/en
Priority claimed from US466618A external-priority patent/US3913703A/en
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB1496206A publication Critical patent/GB1496206A/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
    • F01N1/06—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
    • F01N1/12—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels

Landscapes

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

Abstract

1496206 I C engine exhaust silencers GENERAL MOTORS CORP 30 April 1975 [3 May 1974 (2)] 17949/75 Heading F1B A helical baffle 44 between an inner tube 20 and an outer tube 12 defines a flow-path 56 between a chamber 52 at one end of the silencer and the outlet 28 of the inner tube or openings (118), Fig. 4 (not shown), intermediate the ends of the inner tube. The tube 20 communicates with the chamber 52 through openings 58 having a total flow cross-section substantially equal to the cross-sectional area of the inner tube. The path 56 is longer than the path through the tube 20 between the openings 58 and the outlet 28 or intermediate openings (118), Fig. 4, to produce interference of the sound waves and attenuation of a particular range of sound frequencies. Helical baffles 66 and 73 between the tube 12 and further tubes 34 and 60 provide flow-paths 72 and 82 in parallel with the flow-path between the inlet 36 and the openings 64 in the inner tube 34 to provide attenuation of two further ranges of sound frequencies. The openings (132), Fig. 5 (not shown), in the inner tube (134) upstream of intermediate openings may straddle the upstream turn of the baffle (136) and the end caps may include portions normal to the tube axis. The specification discloses specific dimensions of the silencer and frequencies attenuated and further arrangements of flow-paths, Figs. 7 and 10 (not shown).
GB1794975A 1974-05-03 1975-04-30 Wave interference exhaust silencer Expired GB1496206A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US466526A US3888331A (en) 1974-05-03 1974-05-03 Power tuned wave interference silencer
US466618A US3913703A (en) 1974-05-03 1974-05-03 Single inner assembly wave interference silencer

Publications (1)

Publication Number Publication Date
GB1496206A true GB1496206A (en) 1977-12-30

Family

ID=27041690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1794975A Expired GB1496206A (en) 1974-05-03 1975-04-30 Wave interference exhaust silencer

Country Status (4)

Country Link
JP (1) JPS50152131A (en)
DE (1) DE2519690A1 (en)
FR (1) FR2269635B1 (en)
GB (1) GB1496206A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222852A (en) * 1988-09-19 1990-03-21 Russell Timothy Bartlett Exhaust silencing system
CN107476863A (en) * 2016-06-07 2017-12-15 东北林业大学 Automobile complex muffler system with energy saving and emission reduction effects

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216414U (en) * 1975-07-23 1977-02-05
JPS5236219A (en) * 1975-09-13 1977-03-19 Teruo Kashiwara Exhaust equipment for internal combustion engine
JPS561925Y2 (en) * 1976-07-16 1981-01-17
JPS57119120A (en) * 1981-01-13 1982-07-24 Mitsubishi Heavy Ind Ltd Silencer
JPS58185918A (en) * 1982-04-23 1983-10-29 Ebara Corp Silencer and method of producing the same
AT407772B (en) * 1994-11-08 2001-06-25 Habsburg Lothringen Leopold In COMBINED RESONATOR AND MUFFLER SYSTEM
JP3041265B2 (en) * 1998-01-21 2000-05-15 川崎重工業株式会社 Duct resonance prevention structure
DE19849698A1 (en) * 1998-10-28 2000-05-04 Andreas Pfeifer Silencer for engine running at constant revs., consisting of tube with exhaust gas input and output apertures, between which are two connecting points joined by bypass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222852A (en) * 1988-09-19 1990-03-21 Russell Timothy Bartlett Exhaust silencing system
CN107476863A (en) * 2016-06-07 2017-12-15 东北林业大学 Automobile complex muffler system with energy saving and emission reduction effects

Also Published As

Publication number Publication date
FR2269635B1 (en) 1978-09-01
FR2269635A1 (en) 1975-11-28
DE2519690A1 (en) 1975-11-13
JPS50152131A (en) 1975-12-06

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Legal Events

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