GB370025A - Improvements in silencing devices for engine exhaust - Google Patents

Improvements in silencing devices for engine exhaust

Info

Publication number
GB370025A
GB370025A GB32479/30A GB3247930A GB370025A GB 370025 A GB370025 A GB 370025A GB 32479/30 A GB32479/30 A GB 32479/30A GB 3247930 A GB3247930 A GB 3247930A GB 370025 A GB370025 A GB 370025A
Authority
GB
United Kingdom
Prior art keywords
casing
expansion chambers
passages
utilize
gas
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
GB32479/30A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB370025A publication Critical patent/GB370025A/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
    • F01N1/08—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

370,025. Exhaust silencers. HAYNES, A. J. L., Port Haney, British Columbia, Canada. Oct. 29, 1930, No. 32479. Convention date, Nov. 21, 1929. [Class 7 (ii).] The silencer comprises a casing divided into a number of baffleless expansion chambers connected together in series by passages or ducts which increase in cross-sectional area throughout their length and are adapted to impart rotary motion to the gases. The casing 6, which has an exhaust inlet 7 and an outlet 17, is divided into a number of expansion chambers 10 .. 13 by helical passages 9 the cross section of each of which increases according to an exponential law as applied to acoustics. The pipe 7 discharges into the casing through 'an inclined nozzle 8 which sets the gases rotating; and this rotation is continued by the helical passages. The expansion chambers are stated to utilize the elasticity of the gas to absorb sudden increases of pressure, and the helical passages form the gas into a column to utilize its mass to the utmost to oppose sudden changes in the rate of flow.
GB32479/30A 1929-11-21 1930-10-29 Improvements in silencing devices for engine exhaust Expired GB370025A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA370025X 1929-11-21

Publications (1)

Publication Number Publication Date
GB370025A true GB370025A (en) 1932-03-29

Family

ID=4171482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32479/30A Expired GB370025A (en) 1929-11-21 1930-10-29 Improvements in silencing devices for engine exhaust

Country Status (1)

Country Link
GB (1) GB370025A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185021B (en) * 1955-05-11 1965-01-07 J R Andersson & Co A B Sound absorber for flowing gases with sound-absorbing walls

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185021B (en) * 1955-05-11 1965-01-07 J R Andersson & Co A B Sound absorber for flowing gases with sound-absorbing walls

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