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Title: Muffler for combustion engines

Abstract: A muffler for combustion engines in which a housing is subdivided by means of bottoms into at least two successively arranged reflection chambers. Into the first inlet-side reflection chamber an exhaust entry pipe extends. An intermediate channel extends through at least one of inner bottoms from the first into at least one reflection chamber. An exhaust outlet pipe extends from the last reflection chamber out of the muffler, and has at least, in the region of the last reflection chamber, at least one inlet opening. The intermediate channel is arranged in the form of a plurality of intermediate channels which are flowed-through in one and the same direction, and each channel has a small cross-sectional area in relation to the cross-section of the exhaust inlet pipe.


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Inventors: Seeger, Walter (Gaggenau, DE)

Application Number: 06/126318
Filing Date: 1980-03-03
Publication_date: 1982-06-08
Assignee: ROTH KG M

Primary Class(es): 181/266 181/275
Other Classes: F01N1/02; F01N1/08; F01N1/08
US Patent Ref:
1023644April, 1912Hall181/265
2397208March, 1946Saco et al.181/275Waste heat utilizer
4109755August, 1978Grueneberg181/266Noise attenuator
4143739March, 1979Nordlie181/272Concentric pass-type muffler construction

Other Refs: DE2638632IT546988IT615570GB435423
March, 1978181/275
August, 1956181/273
January, 1961181/275
September, 1935181/275

Primary Examiner: Hix L. T.
Assistant Examiner: Tarcza, Thomas H.
Attorney: Fogiel, Max
Claims:
What is claimed