초록 ▼

A trust reverser is disclosed for a turbofan-type turbojet engine having the capabilities of reversing the air passing through a cold flow air duct to provide a reverse thrust for the engine and also adjusting the cross-section of the cold flow air duct. This enables the cold flow air duct to be inc

A trust reverser is disclosed for a turbofan-type turbojet engine having the capabilities of reversing the air passing through a cold flow air duct to provide a reverse thrust for the engine and also adjusting the cross-section of the cold flow air duct. This enables the cold flow air duct to be increased in cross section during periods of high thrust operation, a cowl defining the outer limits of the cold flow air duct has a stationary portion arranged generally, concentrically about the hot gas exhaust duct, and two movable portions, each of which are movable axially with respect to the stationary cowl. Locking systems are utilized to releasably lock a first movable cowl to the stationary cowl, and to releasably lock the second movable cowl to the first movable cowl.

대표청구항 ▼

A thrust reverser for a turbofan-type turbojet engine having a hot gas exhaust duct comprising: (a) a stationary cowl arranged generally concentrically about the hot gas exhaust duct so as to define a generally annular cold flow air duct therebetween; (b) deflection vanes attached to the stationary

A thrust reverser for a turbofan-type turbojet engine having a hot gas exhaust duct comprising: (a) a stationary cowl arranged generally concentrically about the hot gas exhaust duct so as to define a generally annular cold flow air duct therebetween; (b) deflection vanes attached to the stationary cowl; (c) a first movable cowl slidably attached to the stationary cowl so as to be movable in a generally axial direction; (d) a second movable cowl slidably attached to the stationary cowl so as to be movable in a generally axial direction; (e) flap means movable between a blocking position and a retracted position; (f) first locking means to releasably lock the first movable cowl to the stationary cowl; (g) second locking means to releasably lock the second movable cowl to the first movable cowl; and, (h) actuating means operatively interposed between the stationary cowl and the second movable cowl to move the first and second movable cowls with respect to the stationary cowl between: a first position wherein the first movable cowl is locked to the stationary cowl thereby covering the deflection vanes and the second movable cowl is locked to the first movable cowl; a second position wherein the first and second movable cowls are moved axially as a unit to thereby uncover the deflection vanes; and a third position wherein the second movable cowl is axially displaced from the first movable cowl which is locked to the stationary cowl covering the deflection vanes so as to increase the exit area of the cold flow air duct.