Blower

Abstract

Abstract PURPOSE:To provide a sufficient static pressure durable against an ignition pressure when air-fuel mixture is ignited in a combustion chamber, and permit a necessary amount of air for steady combustion to be supplied, by constituting a bellmouth of a flange, cylindrical portion, guide plate, partitioning plate and closure plate. CONSTITUTION:A guide plate 5c is a semi-circular disc having a diameter equal to an outer diameter of a cylindrical portion 5b, and is designed to close a suction opening 1d of an impeller 1 except a semi-circular opening thereof. A partitioning plate 5d is projected from an edge portion on the opening side of the guide plate 5c in such a manner as to be inserted into the suction opening 1d by 20-30% of a width of the impeller, and is designed to partition a closure portion as closed by the guide plate 5c from the semi-circular opening in the suction opening 1d. Further, there is provided a blocking plate 5e on an outer peripheral surface of the cylindrical portion 5b for blocking a spacing between the cylindrical portion 5b and a wind cutting portion 4c of a casing 4. With this arrangement, a part of the fluid discharged from the impeller 1 is returned from a chamber of the impeller 1 to the suction opening 1d as a return fluid without loss of energy, and is boosted again, thereby obtaining a sufficient static pressure durable against an ignition pressure and permitting a necessary amount of air for steady combustion to be supplied.

Inventors

• 👤 Shizuo Wani
• 👤 和仁　静男

Bibliographic Details