The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 1999
Filed:
Mar. 28, 1996
Joseph L Koncsek, Seattle, WA (US);
Kenneth J Marrs, Seattle, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
An internal compression engine inlet (39) including a flexible external cowl with leading edge cowl lips (72); a duct comprising a supersonic diffuser (44) defined by upper and lower forward ramps (50), (52), a subsonic diffuser (46) defined by upper and lower aft ramps (54), (56), and a throat region (48); a first slot (58) formed between adjacent ends of the upper forward and upper aft ramps; and a second slot (60) formed between adjacent ends of the lower forward and lower aft ramps, is provided. Each slot (58), (60) opens to a plenum (120), (122) having a vent door (126) covering a vent (124) that opens to a low pressure volume. Further inlet components include an optional splitter (62) for creating additional airflow compression, a precision vent (128) for expelling small amounts of plenum air, and a control system (150) for varying the cross-sectional area of the duct and the position of the vent doors in order to create an aerodynamically efficient airflow passage within the duct for any particular flight condition. Further provided is a method of providing air to an aircraft engine using an internal compression engine inlet including: sensing current flight conditions; configuring the inlet components to their optimal positions for the current flight conditions; channeling air into a duct having a supersonic diffuser region followed by a throat region having first and second slots each slot opening into a plenum, the throat region being followed by a subsonic diffuser; sensing the static air pressure in the supersonic diffuser; sensing the static air pressure within each plenum; comparing the supersonic diffuser static air pressure with the plenum air pressures; and selectively exhausting air from each plenum to maintain the static air pressure in the plenums at a desired amount.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile