Jet engine, in particular a jet engine for an aircraft

F - Mech Eng,Light,Heat,Weapons – 01 – D

Patent

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Details

F01D 17/14 (2006.01) F02C 5/12 (2006.01) F02K 7/02 (2006.01) F02K 9/40 (2006.01)

Patent

CA 2748891

The invention relates to a jet engine (1), in particular an aircraft jet engine, including at least one combustion chamber (3). The combustion chamber (3) is connected to at least one compressed gas intake (4) and to at least one burnt gas outlet (5). Said burnt gas outlet(s) (5) include an exhaust valve. The exhaust valve includes two rotary parts (7), referred to as rotary exhaust parts, the rotary exhaust parts (7) including curved walls (8) and intermediate walls (9) connecting the curved walls (8), and rotating in a coordinated, continuous fashion such that said valve is in a closed position in order to block the exhaust gas during at least one combustion step, and in an open position in order to define a space (10) through which the exhaust gas flows out from the combustion chamber (3) during at least one expansion step.

L'invention concerne un réacteur (1), notamment un réacteur d'aéronef, comprenant au moins une chambre de combustion (3). La chambre de combustion (3) est reliée à au moins une arrivée (4) de gaz comprimés et à au moins une sortie (5) des gaz brûlés. Ladite ou lesdites sorties (5) des gaz brûlés comprend une valve d'éjection. La valve d'éjection comprend deux pièces rotatives (7), dites pièces rotatives d'éjection, les pièces rotatives d'éjection (7) comprenant des parois courbes (8) et des parois intermédiaires (9) reliant les parois courbes (8), et étant en rotation en rotation coordonnée et continue de façon à être dans une position fermée afin de s'opposer à une éjection de gaz, lors d'au moins une étape de combustion, et dans une position ouverte afin de définir un espace (10) au travers duquel les gaz sont éjectés de la chambre de combustion (3) lors d'au moins une étape de détente.

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