Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1990-12-03
1992-11-17
Gellner, Michael L.
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181272, 181273, 181282, F01N 700, F01N 718
Patent
active
051645513
ABSTRACT:
A reinforced stamped muffler is provided. The muffler includes a pair of internal plates secured in face-to-face relationship and formed to define an array of tubes and chambers therebetween. The chambers are provided with at least one array of reinforcing grooves. Larger chambers defined by the internal plates may include a first array of parallel reinforcing grooves and a second array of parallel reinforcing grooves extending transverse to and intersecting the end-most grooves in the first array. All of the grooves preferably extend into intersection with planar portions of the internal plates. The muffler further includes external shells formed to define larger chambers. The larger chambers of the external shells are formed with a major pattern of reinforcing undulations and a minor pattern of undulations or grooves superimposed thereon. The minor pattern preferably includes a parallel array of grooves with end most grooves in the parallel array being intersected by orthogonally extending grooves. All of the grooves in the external shell preferably extend into intersection with a planar peripheral flange.
REFERENCES:
patent: 4958701 (1990-09-01), Moring, III
patent: 5004069 (1991-04-01), Van Blaircum et al.
Clegg Michael W.
Harwood Jon W.
AP Parts Manufacturing Co.
Casella Anthony J.
Dang Khanh
Gellner Michael L.
Hespos Gerald E.
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