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GB773657A - Improvements in or relating to silencers for internal-combustion engines - Google Patents

Improvements in or relating to silencers for internal-combustion engines

Info

Publication number
GB773657A
GB773657A GB32310/55A GB3231055A GB773657A GB 773657 A GB773657 A GB 773657A GB 32310/55 A GB32310/55 A GB 32310/55A GB 3231055 A GB3231055 A GB 3231055A GB 773657 A GB773657 A GB 773657A
Authority
GB
United Kingdom
Prior art keywords
chambers
casing
volume
passage
silencers
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
GB32310/55A
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 GB773657A publication Critical patent/GB773657A/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
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction

Landscapes

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

Abstract

773,657. Silencers for gaseous currents. NEMEC, J. Nov. 11, 1955 [June 9, 1955], No. 32310/55. Class 7 (2). An exhaust or intake silencer comprises inner and outer coaxial casings 1, 6 defining an annular passageway 9, the inner and shorter casing 6 being closed at both ends thereof by walls 7, 8, and provided with at least one aperture 11, and forming with the casing 1 chambers 12, 14. The casing 1 has inlet and outlet openings 4, 5. As shown, a helically wound strip 16 is disposed in the passageway to form a helical gas passage between the chambers 12, 14; alternatively two such strips may be provided to form parallel helical passages. The resonator chamber 13 formed by the casing 6 and the chambers 12, 14 are approximately equal in volume, the maximum difference in volume being 15 per cent. The aperture 11, or apertures, have a crosssectional area substantially equal to that of the helical passage, and are located at about twofifths of the length of that passage from the inlet thereof. The tail-pipe 15 may be omitted, in which case the volume of the chamber 14 is less than that of the chambers 12, 13.
GB32310/55A 1955-06-09 1955-11-11 Improvements in or relating to silencers for internal-combustion engines Expired GB773657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS773657X 1955-06-09

Publications (1)

Publication Number Publication Date
GB773657A true GB773657A (en) 1957-05-01

Family

ID=5455449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32310/55A Expired GB773657A (en) 1955-06-09 1955-11-11 Improvements in or relating to silencers for internal-combustion engines

Country Status (1)

Country Link
GB (1) GB773657A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683978A (en) * 1984-11-22 1987-08-04 Tula Silencers (Propriety) Limited Exhaust silencer
GB2228535A (en) * 1989-02-24 1990-08-29 Gilardini Spa A silencer for a vehicle exhaust system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683978A (en) * 1984-11-22 1987-08-04 Tula Silencers (Propriety) Limited Exhaust silencer
GB2228535A (en) * 1989-02-24 1990-08-29 Gilardini Spa A silencer for a vehicle exhaust system
FR2643677A1 (en) * 1989-02-24 1990-08-31 Gilardini Spa SILENCER FOR AN EXHAUST SYSTEM OF A VEHICLE

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