US 11,988,283 B2
Non-metallic engine case inlet compression seal for a gas turbine engine
Anthony R. Bifulco, Ellington, CT (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Oct. 7, 2021, as Appl. No. 17/496,288.
Application 17/496,288 is a division of application No. 16/108,758, filed on Aug. 22, 2018, granted, now 11,143,303.
Application 16/108,758 is a division of application No. 14/948,657, filed on Nov. 23, 2015, granted, now 10,077,669, issued on Sep. 18, 2018.
Claims priority of provisional application 62/084,603, filed on Nov. 26, 2014.
Prior Publication US 2022/0221056 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F16J 15/02 (2006.01); B64D 33/02 (2006.01); F16J 15/06 (2006.01); F16J 15/10 (2006.01); F16J 15/46 (2006.01)
CPC F16J 15/027 (2013.01) [B64D 33/02 (2013.01); F05D 2240/55 (2013.01); F05D 2300/437 (2013.01); F16J 15/025 (2013.01); F16J 15/062 (2013.01); F16J 15/104 (2013.01); F16J 15/46 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A non-metallic engine case inlet compression seal for a gas turbine engine to form a compression interface with an airframe bulkhead, comprising:
a non-metallic arcuate interface section;
a non-metallic longitudinal leg section that extends from said non-metallic arcuate interface section, said non-metallic longitudinal leg section configured to be at least partially radially supported on an outer case structure of said gas turbine engine, said non-metallic longitudinal leg section comprises a stepped surface adjacent to a forward circumferential edge of said outer case structure;
a non-metallic mount flange section that extends transversely from said longitudinal leg section, said non-metallic mount flange having a multitude of apertures to mount said non-metallic engine case inlet compression seal to said outer case structure of said gas turbine engine; and
a fiber reinforcement bonded to an outer surface of at least one of said non-metallic arcuate interface section, said non-metallic longitudinal leg section, and said non-metallic mount flange section.