초록 ▼

A converter for treating gases to remove pollutants or particulate matter having layers of normally nesting corrugated thin metal foil, with or without a catalyst supported thereon, and characterized by spaced strands of wire or nonvitreous inorganic ceramic thread interposed between the layers to m

A converter for treating gases to remove pollutants or particulate matter having layers of normally nesting corrugated thin metal foil, with or without a catalyst supported thereon, and characterized by spaced strands of wire or nonvitreous inorganic ceramic thread interposed between the layers to maintain them in spaced relation for the passage of gas, e.g., exhaust gas from an engine or plant, therethrough. The principal advantages are the relatively high particulate trap efficiency, the relatively low back pressure, and the low cost of manufacture.

대표청구항 ▼

A converter for altering the composition of gases passing therethrough and comprising a gas inlet and a gas outlet; a plurality of individual layers having a predetermined length and extending between the inlet and outlet, said layers being normally nestable corrugated thin metal foil having on each

A converter for altering the composition of gases passing therethrough and comprising a gas inlet and a gas outlet; a plurality of individual layers having a predetermined length and extending between the inlet and outlet, said layers being normally nestable corrugated thin metal foil having on each surface thereof a coating comprising a refractory metal oxide and optionally a heavy metal catalyst deposited thereon; and a plurality of flexible fibers positioned between said layers and extending cross-wise of the corrugations and each said fiber having a length sufficient to span said predetermined length in a direction parallel to the gas flow between the inlet and the outlet wherein said layers are partially nested and separated from each other by a distance substantially equal to the thickness of said fibers.