Acoustic liner

Details Acoustic liner Acoustic liner

1989-06-26

1991-06-25

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181286, 181288, 181290, 181292, 181293, 244 1N, F01N 102, F02K 100

Patent

active

050258885

ABSTRACT:
An acoustic liner comprising a sound permeable inside plate forming a first closed annulus, and a sound impermeable outside plate forming a second closed annulus located outside of and extending around the first closed annulus. The inside and outside plates are spaced apart and thus form an annular chamber therebetween; and a core member is secured in this annular chamber, between the inside and outside plates. The core member forms or has the shape of a sine wave form annularly extending around the inside plate, and the core member and the inside plate form a multitude of varying depth sound absorption chambers to attenuate sound waves over a broad band of frequencies.

REFERENCES:
patent: 859488 (1907-07-01), Dolmetsch
patent: 1870323 (1932-08-01), Catteneo
patent: 1912161 (1933-05-01), Rosenblatt
patent: 1925453 (1933-09-01), Mazer
patent: 1953410 (1934-04-01), Jacobson
patent: 2069413 (1937-02-01), Leadbetter
patent: 2091918 (1937-08-01), Finck
patent: 2192516 (1940-03-01), Cunnington
patent: 2301538 (1942-11-01), Guyer et al.
patent: 2326581 (1943-08-01), Van Cleef
patent: 2419971 (1947-05-01), Rumpf et al.
patent: 2442347 (1948-06-01), Eklund
patent: 2887173 (1959-05-01), Boschi
patent: 2973295 (1961-02-01), Rodgers, Jr.
patent: 3061491 (1962-10-01), Sherrard et al.
patent: 3115948 (1963-12-01), Gildard, III et al.
patent: 3166149 (1965-01-01), Hulse et al.
patent: 3176789 (1965-04-01), Lighter
patent: 3380206 (1968-04-01), Barnett
patent: 3412513 (1968-11-01), Gosele
patent: 3439774 (1969-04-01), Callaway et al.
patent: 3502171 (1970-03-01), Cowan
patent: 3507355 (1970-04-01), Lawson
patent: 3599749 (1971-08-01), Millman
patent: 3602332 (1971-08-01), Hollenbeck
patent: 3640357 (1972-02-01), Kitching et al.
patent: 3670843 (1972-06-01), Kelly et al.
patent: 3795288 (1974-03-01), Pall
patent: 3831710 (1974-08-01), Wirt
patent: 3844875 (1974-10-01), Chamberlain, III
patent: 3913702 (1975-10-01), Wirt et al.
patent: 3948347 (1976-04-01), Rutledge
patent: 3960236 (1976-06-01), Holmes
patent: 3977492 (1976-08-01), Hankel
patent: 4111081 (1978-09-01), Hilliard et al.
patent: 4170674 (1979-10-01), Matsuki
patent: 4226299 (1980-10-01), Hansen
patent: 4275801 (1981-06-01), Bschorr
patent: 4283457 (1981-08-01), Kolsky et al.
patent: 4421201 (1983-12-01), Nelsen et al.
patent: 4433751 (1984-02-01), Bonneau
patent: 4441581 (1984-04-01), Sommerhalder

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