초록 ▼

An infrared suppressor system for a gas turbine engine is provided for suppressing infrared radiation associated with the hot metal parts of the engine and with the hot exhaust gases exhausted from the engine. The system features a unique arrangement of multiple baffles that are connected together a

An infrared suppressor system for a gas turbine engine is provided for suppressing infrared radiation associated with the hot metal parts of the engine and with the hot exhaust gases exhausted from the engine. The system features a unique arrangement of multiple baffles that are connected together as a single baffle module. The baffle arrangement permits mixing of hot and cool gas flows while eliminating line-of-sight infrared radiation in an axially compact suppressor. The baffles are additionally linked together into a single insertable baffle module that permits removal of the baffle module when infrared suppression is unnecessary.

대표청구항 ▼

[ Having described the invention, what is claimed as novel and desired to be secured by Letters Patent of the United States is:] [2.]2. An apparatus for suppressing infrared radiation emitted from hot metal parts at an aft end of a gas turbine engine and from a stream of hot exhaust gases flowing th

[ Having described the invention, what is claimed as novel and desired to be secured by Letters Patent of the United States is:] [2.]2. An apparatus for suppressing infrared radiation emitted from hot metal parts at an aft end of a gas turbine engine and from a stream of hot exhaust gases flowing therefrom during operation of the engine, comprising:a duct for receiving the stream of hot exhaust gases from said engine, said duct adapted to generally confine said exhaust gases to flow through said duct, said duct having an inner liner spaced radially inwardly therefrom and effective for receiving said exhaust gases from said gas turbine engine, said inner liner having a pair of spaced grooves facing in an aft direction; anda plurality of hot and cold baffles extending across said duct for splitting said hot exhaust gases and for obstructing line-of-sight viewing of said hot metal parts when said engine is viewed from an aft direction; andwherein said baffles form a baffles module that can be removed from, and reinserted into, said suppressor, said baffle module including:a pair of spaced cold baffle end plates;said plurality of hot and cold baffles extending between and fixedly connected to said cold baffle end plates and effective for obstructing line-of-sight viewing of said hot metal parts; anda pair of hot baffle end plates disposed adjacent to respective ones of said cold baffle end plates for preventing said exhaust gases from impinging thereagainst and against walls of said duct and fixedly joined to said hot baffles, each of said hot baffle end plates having a tongue portion extending in an upstream direction;said tongue portions of said hot baffle end plates being removably positionable in said grooves of said inner liner for removably mounting said baffle module in said duct.