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A blowing apparatus includes a suction passage having a suction chamber enclosed by rigid body surfaces, suction ports opening toward the suction chamber for sucking air from outside, and a fan suction port serving as a suction port for a blower, the suction ports, the suction chamber, and the fan s

A blowing apparatus includes a suction passage having a suction chamber enclosed by rigid body surfaces, suction ports opening toward the suction chamber for sucking air from outside, and a fan suction port serving as a suction port for a blower, the suction ports, the suction chamber, and the fan suction port being arranged in nonlinear form. In such blowing apparatus, a doughnut-like straightening guide is arranged on an opening edge on the suction chamber side of the fan suction port. The straightening guide has a projection toward the suction chamber, an appropriate thickness in the radial direction, and a guide passage matching the fan suction port in the middle thereof.

대표청구항 ▼

A suction panel for stabilizing an air stream and concealing a blower in a blowing apparatus in which the blowing apparatus includes a suction chamber enclosed by rigid body surfaces with one open surface; and a fan suction port serving as a suction port for the blower, said suction panel being atta

A suction panel for stabilizing an air stream and concealing a blower in a blowing apparatus in which the blowing apparatus includes a suction chamber enclosed by rigid body surfaces with one open surface; and a fan suction port serving as a suction port for the blower, said suction panel being attached to said blowing apparatus so as to close the open surface, said suction panel comprising: a front panel portion for allowing the open surface to be closed so as to conceal the blower, a first and a second suction port communicating with said suction chamber wherein said second suction port is spaced apart from said first suction port by at least one opening width of said first suction port, said first suction port having a protecting portion projecting toward a center of the suction chamber and parallel to said front panel portion, wherein an air stream from said first suction port is directed by said projecting portion toward the center of the suction chamber so as to usher an air stream from said first and second suction ports into the fan suction port and thereby stabilize and guide the air stream into the fan suction port. An apparatus comprising: a suction chamber, a blower chamber, a partition separating said suction chamber from said blower chamber, a first port disposed on a wall of said suction chamber, a second port disposed on said partition permitting flow communication between said suction chamber and said blower chamber, an annular guide provided at the mouth of said second port said annular guide projecting into said suction chamber and having a portion of said annular guide which faces said suction chamber tapered to form a bell-mouth shape.