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Accession Number:
ADD014287
Title:
Advanced Composite Polar Boss.
Descriptive Note:
Patent, Filed 16 Oct 87, patented 1 Aug 89,
Corporate Author:
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
Report Date:
1989-08-01
Pagination or Media Count:
10.0
Abstract:
Composite polar bosses applied in rocket motor cases have desirable characteristics. The lead time for a boss can be reduced from 6-12 months to 4-6 months. Weight savings for the bossnozzle assembly are about 20-40 percent. A composite polar boss which attaches nozzle assemblies to solid fueled rocket motor cases is disclosed. This polar boss is a carbonized fabrication which sits within a circumferential indentation within the motor case, and has a threaded inner circumference which permits the nozzle assembly to be attached thereto. The materials of the boss are selected to permit a service temperature of up to 3,200 degrees F. Keywords Patents Solid propellant Rocket engines Rocket engine cases Composite materials Weight reduction Rocket nozzles.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE