Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1979-07-19
1982-03-09
Nozick, Bernard
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
55316, 55498, 55517, 55DIG30, 60311, 181228, 181267, B01D 4600
Patent
active
043187200
ABSTRACT:
A combined muffler and engine exhaust filter comprises a fixed outer shell and an inner shell. The inner shell is formed from two concentric perforated tubes held in fixed relationship to each other. Granulated or powdered filtering material fills the space between the concentric tubes. The engine exhaust is connected to one end of the combined muffler and filter. An exhaust pipe is connected to the other end. The structure which holds the inner shell and outer shell in fixed relationship to each other also causes the engine exhaust to pass through the perforations in one tube and move in a radial direction through the filter material and through the perforations in the other tube. The length of the concentric tubes, the size and number of perforations, and the thickness of the filtering material between the concentric tubes selected to adequately filter the engine exhaust without incurring an objectionable increase in back pressure. The spacing between the inner and outer shell is selected to provide the volume necessary for the required muffling action.
REFERENCES:
patent: 2834425 (1958-05-01), Rawson
patent: 2984315 (1961-05-01), Kleinecke
patent: 3016108 (1962-01-01), Myddelton
patent: 3147097 (1964-09-01), Aguas
patent: 3154388 (1964-10-01), Purse
patent: 3479145 (1969-11-01), Lentz
patent: 3633343 (1972-01-01), Mark
patent: 3712029 (1973-01-01), Charlton
patent: 4124357 (1978-11-01), Akimoto et al.
patent: 4149862 (1979-04-01), Sewell, Sr.
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