Improvements in or relating to Centrifugal Fans.
Реферат: 11,029. Stott, O. May 5. Fan apparatus.-In a combination of fans for pumping two gases, or air and gas separately, the impellers a, b are arranged in separate compartments of a casing which comprises a central plate f' and cylindrical walls f formed in one therewith, the end walls e, g being secured by bolts. A combined bearing and packed gland is arranged for the shaft in the partition f<1>. The gas inlet g<2> has an elbow pipe connexion h, but the inlet to the impeller a may be open to the atmosphere. The fans are arranged to produce equal pressures, but are of different sizes according to the volumes to be pumped. The shaft is carried in a bearing-bracket n and a bearing in the wall f and an additional bearing l may be provided in the elbow h. Ball races are fitted.
Centrifugal fan impeller, fan unit and system of centrifugal fan
Номер патента: RU2321775C1. Автор: Омар ЗАДИ. Владелец: Циль-Абегг АГ. Дата публикации: 2008-04-10.