GB742529A - Silencer unit for internal combustion engines - Google Patents

Silencer unit for internal combustion engines

Info

Publication number
GB742529A
GB742529A GB2959/52A GB295952A GB742529A GB 742529 A GB742529 A GB 742529A GB 2959/52 A GB2959/52 A GB 2959/52A GB 295952 A GB295952 A GB 295952A GB 742529 A GB742529 A GB 742529A
Authority
GB
United Kingdom
Prior art keywords
silencer
eberspacher
silencers
internal combustion
combustion engines
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
GB2959/52A
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.)
WALTER EBERSPACHER
Original Assignee
WALTER EBERSPACHER
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 WALTER EBERSPACHER filed Critical WALTER EBERSPACHER
Publication of GB742529A publication Critical patent/GB742529A/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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/023—Helmholtz resonators
    • 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

742,529. Exhaust-silencers. EBERSPACHER, W., and EBERSPACHER, H., [trading as EBERSPACHER, J.]. Feb. 4, 1952 [Feb. 3, 1951], No. 2959/52. Class 7(2) In a silencing system particularly for four-stroke engines and provided with two or more silencers, the exhaust manifold 2 connected to the engine 1 and including an additional chamber for heating the induction air, silencer 5 and a pipe 3 connecting that silencer to the manifold are so dimensioned as to constitute an acoustic chamber having a natural frequency which is greater, preferably at least 50 per cent, than the maximum fundamental engine frequency as calculated by the formula nZ/120 where n=the number of revolu-- tions per minute and Z=the number of cylinders. The silencer 5 which has an internal perforated member 4 and the silencer 7 may be completely or partly, filled with sound-absorptive material, and the length of the pipe 6 between the silencers may be approximately 1/4, 3/4 or 5/4 of the wavelength of the maximum. fundamental engine frequency.
GB2959/52A 1951-02-03 1952-02-04 Silencer unit for internal combustion engines Expired GB742529A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE742529X 1951-02-03

Publications (1)

Publication Number Publication Date
GB742529A true GB742529A (en) 1955-12-30

Family

ID=6645905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2959/52A Expired GB742529A (en) 1951-02-03 1952-02-04 Silencer unit for internal combustion engines

Country Status (1)

Country Link
GB (1) GB742529A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263772A (en) * 1964-06-17 1966-08-02 Arvin Ind Inc Sound attenuating gas conduit with one-quarter wave-length side branch chambers
US3382948A (en) * 1965-10-13 1968-05-14 Walker Mfg Co Mufflers with side branch tuning chambers
US3414078A (en) * 1966-03-15 1968-12-03 Andersson Louis Tuned resonance muffler
US4529060A (en) * 1983-02-23 1985-07-16 Bbc Brown, Boveri & Company, Limited Absorption muffler for gas-dynamic pressure-wave machines
GB2164095A (en) * 1984-09-05 1986-03-12 Hydrovane Compressor Rotary air compressors
US4712642A (en) * 1986-02-11 1987-12-15 Titeflex Corporation Self-damping convoluted conduit
US4793384A (en) * 1986-02-11 1988-12-27 Titeflex Corporation Self-damping convoluted conduit
US4867269A (en) * 1987-06-30 1989-09-19 Titeflex Corporation Tuned self-damping convoluted conduit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263772A (en) * 1964-06-17 1966-08-02 Arvin Ind Inc Sound attenuating gas conduit with one-quarter wave-length side branch chambers
US3382948A (en) * 1965-10-13 1968-05-14 Walker Mfg Co Mufflers with side branch tuning chambers
US3414078A (en) * 1966-03-15 1968-12-03 Andersson Louis Tuned resonance muffler
US4529060A (en) * 1983-02-23 1985-07-16 Bbc Brown, Boveri & Company, Limited Absorption muffler for gas-dynamic pressure-wave machines
GB2164095A (en) * 1984-09-05 1986-03-12 Hydrovane Compressor Rotary air compressors
US4712642A (en) * 1986-02-11 1987-12-15 Titeflex Corporation Self-damping convoluted conduit
US4793384A (en) * 1986-02-11 1988-12-27 Titeflex Corporation Self-damping convoluted conduit
US4867269A (en) * 1987-06-30 1989-09-19 Titeflex Corporation Tuned self-damping convoluted conduit

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