초록 ▼

In a scarfed nacelle inlet for channeling airflow to an engine having a longitudinal center line axis (ENGINE C/L), the duct including a crown (26) and a keel (28), an improvement including an inlet with a biplanar forward hilite. When viewed in side elevation, the biplanar hilite includes a first p

In a scarfed nacelle inlet for channeling airflow to an engine having a longitudinal center line axis (ENGINE C/L), the duct including a crown (26) and a keel (28), an improvement including an inlet with a biplanar forward hilite. When viewed in side elevation, the biplanar hilite includes a first portion (40) including the keel, a second portion (42) including the crown, and a transition region (44) between the first and second portions. The first and second portions (40), (42) are linear and the transition region (44) is a single arc. An imaginary intersection line (IP) between the first and second portions is located vertically about midway between the crown and the keel.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] In a stationary scarfed nacelle inlet for channeling airflow to a turbofan engine of a subsonic aircraft, the engine having a longitudinal inlet center line, the improvement compri

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] In a stationary scarfed nacelle inlet for channeling airflow to a turbofan engine of a subsonic aircraft, the engine having a longitudinal inlet center line, the improvement comprising:a forward hilite which when viewed in side elevation includes a first portion, a second portion positioned below the first portion, and a transition region between the first and second portions; wherein the first and second portions are linear and the transition region is a single concave arcuate shape; the lowermost point of the second portion extending more forward than the highest point of the first portion relative to the longitudinal inlet center line, thereby reducing associated engine noise.