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US3166705A
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Automatic voltage control for electrical precipitators
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DE1118388B
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Regenerative filling compound made of ceramic hollow stones for circulating air preheaters
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DE1095978B
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Regenerative air heater with a cylindrical supporting structure
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DE1119446B
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Method and device for maintaining the highest possible temperature drop in regenerative air preheaters
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Plates for regenerative heat exchangers
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Impeller blade for conveying centrifugal machines
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DE1010687B
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Method and device for extracting the dust separated from the flue gases of furnaces by means of the exhaust fumes of piston engines
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DE1007001B
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Roller ring for regenerative preheater
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DE862022C
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Plate heat exchanger for a dust-laden gaseous medium
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DE1120485B
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Sealing device on heat exchangers, which consist of a fixed regenerative chamber and rotatable supply and discharge devices for one medium
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