초록 ▼

An apparatus for reducing distortion of air flow entering the inlet of a fan. The device includes a perforated body member that has a first end that is attachable to the inlet end of the fan and a second end. The apertures in the body member are arranged in a plurality of circumferential rows. Prefe

An apparatus for reducing distortion of air flow entering the inlet of a fan. The device includes a perforated body member that has a first end that is attachable to the inlet end of the fan and a second end. The apertures in the body member are arranged in a plurality of circumferential rows. Preferably, the apertures in each successive row from the first end to the second end increase in diameter with the apertures in the row adjacent the first end being smaller in diameter than the apertures in the row adjacent the second end. The body member can be frusto-conical, cylindrical or ellipsoidal in shape. In addition, the body member can be equipped with an apparatus for reducing airflow noise.

대표청구항 ▼

[ What is claimed is:] [1.] An airflow inlet apparatus for reducing distortion of air entering an inlet end of a fan assembly, said inlet apparatus comprising:a hollow body member having a first end having a first diameter and being attachable to said inlet end of said fan assembly and a second end,

[ What is claimed is:] [1.] An airflow inlet apparatus for reducing distortion of air entering an inlet end of a fan assembly, said inlet apparatus comprising:a hollow body member having a first end having a first diameter and being attachable to said inlet end of said fan assembly and a second end, said hollow body member having a frame member having a primary end corresponding to said first end of said hollow body member and a secondary end corresponding to said second end of said hollow body member;a primary outer skin portion circumferentially attached to said frame member adjacent said primary end thereof, said primary outer skin portion having a plurality of substantially equally distributed primary apertures therethrough;a secondary outer skin portion circumferentially attached to said frame member in abutting relationship with said primary outer skin portion, said secondary outer skin portion having a plurality of substantially equally distributed secondary apertures therethrough;a tertiary outer skin portion circumferentially attached to said frame member adjacent to said secondary end of said frame member and in abutting relationship with said secondary outer skin portion, said tertiary outer skin portion having a plurality of substantially equally distributed tertiary apertures therethrough; andan end member attached to said second end of said body member.