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A marine in line bilge blower and a method of manufacturing same are described. The blower, or fan, includes a housing in which a motor, airfoils, a fan wheel hub, and straightening vanes are positioned. Specifically, numerous airfoils are positioned on a fan wheel hub, which is in connection with a

A marine in line bilge blower and a method of manufacturing same are described. The blower, or fan, includes a housing in which a motor, airfoils, a fan wheel hub, and straightening vanes are positioned. Specifically, numerous airfoils are positioned on a fan wheel hub, which is in connection with a motor. The motor is mounted on one of several straightening vanes. The housing includes a base with a pair of feet. To protect the circumference of the housing from physical and thermal stress, strengthening rings are positioned on the circumference.

대표청구항 ▼

1. An axial-flow fan, comprising:a plurality of airfoils extending from a rotatable fan wheel hub; a motor engaged with said fan wheel hub through a shaft; a housing into which said fan wheel hub and said motor are positioned, said housing having a circumference with a diameter and at least one stre

1. An axial-flow fan, comprising:a plurality of airfoils extending from a rotatable fan wheel hub; a motor engaged with said fan wheel hub through a shaft; a housing into which said fan wheel hub and said motor are positioned, said housing having a circumference with a diameter and at least one strengthening portion positioned on the circumference of said housing, said strengthening portion inhibiting variation in the diameter of the circumference of the housing; and at least one tapered collar positioned at an end of said housing, said tapered collar decreasing in height over said diameter in a direction from in between the ends of said housing to the end of said housing at which said tapered collar is positioned, wherein each said tapered collar includes one or more collar tabs.