초록 ▼

A grill for an air conditioning unit has one or more grill members wrapped with wire so as to present a varying topographical surface to the flow of air over the grill members. The resulting grill member profile that is presented to the air flow reduces vortex shedding noise that would otherwise occ

A grill for an air conditioning unit has one or more grill members wrapped with wire so as to present a varying topographical surface to the flow of air over the grill members. The resulting grill member profile that is presented to the air flow reduces vortex shedding noise that would otherwise occur without the wire wrapping. Various wire wrappings are disclosed which produce the desired effect of reducing the vortex shedding noise.

대표청구항 ▼

1. An air conditioning unit comprising:a heat exchanger; a fan for producing air flow through the heat exchanger; and a grill mounted within the unit so as to be in the path of the air flow produced by the fan, said grill including at least one member wrapped with wire so as to reduce the level of n

1. An air conditioning unit comprising:a heat exchanger; a fan for producing air flow through the heat exchanger; and a grill mounted within the unit so as to be in the path of the air flow produced by the fan, said grill including at least one member wrapped with wire so as to reduce the level of noise that would otherwise occur by the flow of air through the grill.