Patents by Inventor Mario César De Sousa
Mario César De Sousa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11053890Abstract: The invention relates to an assembly comprising: a turbomachine exhaust case (110) that includes an external sleeve and an internal sleeve inside the former, both sleeves extending concentrically about a turbomachine axis, and also includes a plurality of arms extending radially between the sleeves; and an annular part (130) that is centered about the axis, is mounted on one sleeve of the exhaust case, and is located downstream of the exhaust case in the direction in which the air flows inside the turbomachine; the assembly is characterized in that the annular part and the sleeve of the exhaust case on which the annular part is mounted each have a circumferential thread (131, 115), said threads cooperating with each other in order to allow the annular part to be screwed onto the sleeve of the exhaust case.Type: GrantFiled: June 10, 2016Date of Patent: July 6, 2021Assignee: SAFRAN AIRCRAFT ENGINESInventors: Mario Cesar De Sousa, Benoit Argemiro Matthieu Debray, Dominique Michel Fouquet, Gregory Ghosarossian-Prillieux, Frederic Noel
-
Patent number: 10532429Abstract: A method for perforating a wall, includes calculating mechanical stresses applied on the wall for a use of the wall. The method further includes perforating an orifice in a first determined zone of the wall, the perforation being made using a tool with a cross-section dependent on the mechanical stresses calculated in the first determined zone.Type: GrantFiled: January 24, 2012Date of Patent: January 14, 2020Assignee: SAFRAN AIRCRAFT ENGINESInventors: Jacques Marcel Arthur Bunel, Mario César De Sousa, Fabrice Dominguez, Bouzid Rabia
-
Patent number: 10371009Abstract: The invention relates to a turbomachine casing (1) comprising: a hub (2), an outer shroud (3), and yokes (11) projecting from the outer shroud (3), for attaching the housing (1), characterized in that it comprises at least one stiffener (10) extending between pairs of yokes (11) facing each other, and comprising a central part (18) and side arms (19) projecting from the central part (18).Type: GrantFiled: January 20, 2015Date of Patent: August 6, 2019Assignee: SAFRAN AIRCRAFT ENGINESInventors: Mario Cesar De Sousa, Benoit Argemiro Matthieu Debray, Paul Moreau, Frederic Noel
-
Patent number: 10273904Abstract: The invention relates to a fairing (37) for a mixer (28) of a nozzle (26) of a dual-flow turbomachine (20), said mixer being of an overall annular shape and extending along a longitudinal axis (24) of the turbomachine, said mixer comprising an upstream part (29) provided with a flange (31) extending radially toward the outside of the mixer, intended to be fastened to an exhaust casing (21) of the turbomachine, and a downstream part (33) forming a flow mixing area, the fairing (37) being of an overall annular shape and configured to extend around the upstream part (29) of the mixer (28) and to be attached to the flange (31) of said upstream part (29), the fairing being without means for fastening to the downstream part (33) of the mixer (28), in such a way as to connect the fairing (37) to the mixer (28) at a distance from the flow mixing area.Type: GrantFiled: November 3, 2015Date of Patent: April 30, 2019Assignee: SAFRAN AIRCRAFT ENGINESInventors: Benoit Argemiro Matthieu Debray, Mario Cesar De Sousa, Gregory Ghosarossian-Prillieux, Frederic Noel
-
Patent number: 10247101Abstract: A device for mounting a spark plug in a combustion chamber of a gas turbine engine includes a chimney including a collar extending radially inwards, a washer fastened on an axial end of the chimney so as to project towards the inside of the chimney, and a bushing forming a spark plug guide and including an inner collar and an outer collar that are axially spaced apart from each other by a cylindrical portion. Each collar extends radially outwards. The bushing is floatingly mounted inside the chimney with its collars axially positioned between the collar of the chimney and the washer. The inner collar comes in operation to bear against the collar of the chimney. The outer collar presents an outside diameter (d1) greater than the inside diameter (d2) of the washer.Type: GrantFiled: December 27, 2016Date of Patent: April 2, 2019Assignee: SAFRAN AIRCRAFT ENGINESInventors: Jacques Marcel Arthur Bunel, Mario Cesar De Sousa, Gilles Ulryck
-
Publication number: 20180171932Abstract: The invention relates to an assembly comprising: a turbomachine exhaust case (110) that includes an external sleeve and an internal sleeve inside the former, both sleeves extending concentrically about a turbomachine axis, and also includes a plurality of arms extending radially between the sleeves; and an annular part (130) that is centered about the axis, is mounted on one sleeve of the exhaust case, and is located downstream of the exhaust case in the direction in which the air flows inside the turbo-machine; the assembly is characterized in that the annular part and the sleeve of the exhaust case on which the annular part is mounted each have a circumferential thread (131, 115), said threads cooperating with each other in order to allow the annular part to be screwed onto the sleeve of the exhaust case.Type: ApplicationFiled: June 10, 2016Publication date: June 21, 2018Inventors: Mario Cesar DE SOUSA, Benoit Argemiro Matthieu DEBRAY, Dominique Michel FOUQUET, Gregory GHOSAROSSIAN-PRILLIEUX, Frederic NOEL
-
Patent number: 9970320Abstract: An exhaust housing hub of a turbomachine, including a connecting wall and an inner channel wall, the connecting wall connecting the inner channel wall to inner attachment flanges, wherein a radial section of the connecting wall is curved and can be formed, as required, as a single component with the inner channel wall, the hub also including a series of ribs extending radially between the connecting wall and the inner channel wall.Type: GrantFiled: October 22, 2013Date of Patent: May 15, 2018Assignee: SNECMAInventors: Mario Cesar De Sousa, Frederic Noel, Nicolas Pommier, Olivier Renon
-
Patent number: 9951650Abstract: The invention relates to a turbomachine bearing support (1) supporting at least one bearing and extending according to a longitudinal principal axis of the turbomachine and comprising: a truncated part (11) having a diameter increasing from upstream to downstream; a flange part (12) which extends from the truncated part (11) as far as the bearing (5, 6) to which it is fixed by an axial flange (121), and having at its downstream end a radial internal flange (17) fixed to an oil inlet cover defining with the bearing (5, 6) an oil inlet container (170); oiled air clearance ducts (71) projecting downstream relative to the flange part (12) and on the oil inlet container (170) and to the other side upstream of the flange part (12) directly radially externally relative to the axial flange (121).Type: GrantFiled: November 19, 2014Date of Patent: April 24, 2018Assignee: SNECMAInventors: Frederic Noel, Benoit Argemiro Matthieu Debray, Mario Cesar De Sousa, Gregory Ghosarossian-Prillieux, Nicolas Pommier
-
Patent number: 9932857Abstract: A bypass engine bearing holder (1) that holds an upstream bearing (6) and defines, with said upstream bearing, an oil chamber (100) and an air chamber (200), comprising a frusto-conical portion (11) defining an upstream bearing chamber (160) and a downstream inner chamber (150), and includes an outer collar (13) connected, by a weld (135), to a flange (15) that extends outward from the frusto-conical portion (11). The outer collar (13) has a sealable gimlet (131) engaging with the upstream bearing (6) such as to seal the oil chamber (100). The bearing holder (1) includes a plurality of oil recovery ducts (8) leading to the downstream inner chamber (150) and to the upstream bearing chamber (160). The oil recovery ducts (8) lead to the upstream bearing chamber (160), downstream from the weld (135) of the outer collar (13) on the flange (15), the weld (135) of the outer collar (13) being axisymmetric.Type: GrantFiled: November 18, 2014Date of Patent: April 3, 2018Assignee: SNECMAInventors: Frederic Noel, Benoit Argemiro Matthieu Debray, Mario Cesar De Sousa, Gregory Ghosarossian-Prillieux, Nicolas Pommier
-
Patent number: 9897011Abstract: An assembly including an exhaust casing and an exhaust cone for a gas turbine engine, each including an axial annular flange, the two flanges being inserted into one another, one being radially external and the other radially internal, and held together by a mechanical attachment, and the assembly further including a guide by which, during operation of assembling the annular flanges to each other, the exhaust cone is in a predetermined angular position relative to the exhaust casing.Type: GrantFiled: June 20, 2013Date of Patent: February 20, 2018Assignee: SNECMAInventors: Mario Cesar De Sousa, Baghdad Achbari, Benoit Argemiro Matthieu Debray, Sylvain Pichon, Gregory Ghosarossian-Prillieux, Frederic Noel, Nicolas Pommier, Mathieu Ange Poisson
-
Patent number: 9784186Abstract: A device for mounting a spark plug in a combustion chamber of a gas turbine engine includes a chimney including a collar extending radially inwards, a washer fastened on an axial end of the chimney so as to project towards the inside of the chimney, and a bushing forming a spark plug guide and including an inner collar and an outer collar that are axially spaced apart from each other by a cylindrical portion. Each collar extends radially outwards. The bushing is floatingly mounted inside the chimney with its collars axially positioned between the collar of the chimney and the washer. The inner collar comes in operation to bear against the collar of the chimney. The outer collar presents an outside diameter (d1) greater than the inside diameter (d2) of the washer.Type: GrantFiled: May 3, 2012Date of Patent: October 10, 2017Assignee: SNECMAInventors: Jacques Marcel Arthur Bunel, Mario César De Sousa, Gilles Ulryck
-
Patent number: 9771831Abstract: The invention relates to a turbine engine exhaust casing (1), characterized in that it comprises: a hub (2), an outer ring (3); a plurality of structural arms (10) arranged circumferentially between the hub (2) and the outer ring (3); a stiffener (11) extending along at least a portion of the inner circumference of the hub (2), the hub (2) comprising at least one discharge hole (15), and the stiffener (11) comprising at least one discharge slot (16), so as to enable the discharge of a fluid from the casing (1). The invention also relates to a turbine engine comprising such an exhaust casing.Type: GrantFiled: September 24, 2014Date of Patent: September 26, 2017Assignee: SNECMAInventors: Frederic Noel, Benoit Argemiro Matthieu Debray, Mario Cesar De Sousa, Gregory Ghosarossian-Prillieux
-
Publication number: 20170108225Abstract: A device for mounting a spark plug in a combustion chamber of a gas turbine engine includes a chimney including a collar extending radially inwards, a washer fastened on an axial end of the chimney so as to project towards the inside of the chimney, and a bushing forming a spark plug guide and including an inner collar and an outer collar that are axially spaced apart from each other by a cylindrical portion. Each collar extends radially outwards. The bushing is floatingly mounted inside the chimney with its collars axially positioned between the collar of the chimney and the washer. The inner collar comes in operation to bear against the collar of the chimney. The outer collar presents an outside diameter (d1) greater than the inside diameter (d2) of the washer.Type: ApplicationFiled: December 27, 2016Publication date: April 20, 2017Applicant: SNECMAInventors: Jacques Marcel Arthur BUNEL, Mario Cesar De Sousa, Gilles Ulryck
-
Publication number: 20170030222Abstract: The invention relates to a turbomachine casing (1) comprising: a hub (2), an outer shroud (3), and yokes (11) projecting from the outer shroud (3), for attaching the housing (1), characterised in that it comprises at least one stiffener (10) extending between pairs of yokes (11) facing each other, and comprising a central part (18) and side arms (19) projecting from the central part (18).Type: ApplicationFiled: January 20, 2015Publication date: February 2, 2017Inventors: Mario Cesar DE SOUSA, Benoit Argemiro, Matthieu DEBRAY, Paul MOREAU, Frederic NOEL
-
Publication number: 20160281534Abstract: The present invention relates to a bypass engine bearing holder (1) that holds an upstream bearing (6) and defines, with said upstream bearing, an oil chamber (100) and an air chamber (200), comprising a frusto-conical portion (11) defining an upstream bearing chamber (160) and a downstream inner chamber (150), and comprises an outer collar (13) connected, by a weld (135), to a flange (15) that extends outward from the frusto-conical portion (11). The outer collar (13) has a sealable gimlet (131) engaging with the upstream bearing (6) such as to seal the oil chamber (100). The bearing holder (1) comprises a plurality of oil recovery ducts (8) leading to the downstream inner chamber (150) and to the upstream bearing chamber (160). The oil recovery ducts (8) lead to the upstream bearing chamber (160), downstream from the weld (135) of the outer collar (13) on the flange (15), the weld (135) of the outer collar (13) being axisymmetric.Type: ApplicationFiled: November 18, 2014Publication date: September 29, 2016Applicant: SNECMAInventors: Frederic NOEL, Benoit Argemiro Matthieu DEBRAY, Mario Cesar DE SOUSA, Gregory GHOSAROSSIAN-PRILLIEUX, Nicolas POMMIER
-
Patent number: 9399952Abstract: A method for assembling a nozzle and an exhaust case of a turbomachine is disclosed. The exhaust case includes a hub and an outer ferrule connected to each other by a plurality of arms. The nozzle is attached to the outer ferrule of the exhaust case substantially at the trailing edges of the arms.Type: GrantFiled: August 23, 2013Date of Patent: July 26, 2016Assignee: SNECMAInventors: Mario Cesar De Sousa, Baghdad Achbari, Luc Henri Claude Daguenet, Benoit Debray
-
Publication number: 20160131077Abstract: The invention relates to a fairing (37) for a mixer (28) of a nozzle (26) of a dual-flow turbomachine (20), said mixer being of an overall annular shape and extending along a longitudinal axis (24) of the turbomachine, said mixer comprising an upstream part (29) provided with a flange (31) extending radially toward the outside of the mixer, intended to be fastened to an exhaust casing (21) of the turbomachine, and a downstream part (33) forming a flow mixing area, the fairing (37) being of an overall annular shape and configured to extend around the upstream part (29) of the mixer (28) and to be attached to the flange (31) of said upstream part (29), the fairing being without means for fastening to the downstream part (33) of the mixer (28), in such a way as to connect the fairing (37) to the mixer (28) at a distance from the flow mixing area.Type: ApplicationFiled: November 3, 2015Publication date: May 12, 2016Inventors: Benoit Argemiro Matthieu Debray, Mario Cesar De Sousa, Gregory Ghosarossian-Prillieux, Frederic Noel
-
Patent number: 9310083Abstract: A combustion chamber in which the injection system is attached so as to prevent any axial motion of the injection system, the combustion chamber includes: a baffle including a tubular portion having a first upstream end surrounded by a first radially projecting collar; and an injection system including a bowl which includes a cylindrical portion inserted into the tubular portion, the cylindrical portion including a second upstream end surrounded by a second radially projecting collar, the second collar axially bearing against the first collar, wherein the combustion chamber includes a clamp which axially clamps the first and the second collars against one another, and a fastener which retains the clamp clamped on either side of the first and second collars.Type: GrantFiled: August 12, 2011Date of Patent: April 12, 2016Assignee: SNECMAInventors: Jacques Marcel Arthur Bunel, Brice Arnaud Demoulin, Mario César De Sousa, Guillaume Sevi
-
Patent number: 9188064Abstract: A fuel injection system for a turbojet engine including a fixed part and a sliding lead-through, the fixed part and the sliding lead-through extending along a reference axis, the fixed part including a cavity that has a bottom and a closure cup, the sliding lead-through being provided with a sole plate contained inside the cavity. The injection system has increased resistance to wearing of the injector on which it is mounted. To achieve this it further includes a spring arranged in such a way as to apply to the sole plate a force capable of preventing the vibration-induced micro-movements of the sliding lead-through with respect to the fixed part in the absence of thermal expansion.Type: GrantFiled: July 18, 2011Date of Patent: November 17, 2015Assignee: SNECMAInventors: Jacques Marcel Arthur Bunel, Mario César De Sousa, Guillaume Sevi, Brice Arnaud Demoulin
-
Publication number: 20150285098Abstract: The invention relates to an exhaust (1) housing (1) hub (2) of a turbomachine, comprising a connecting wall (22) and an inner channel wall (20), the connecting wall (22) connecting the inner channel wall (20) to inner attachment flanges (24), wherein a radial section of the connecting wall (22) is curved and can be formed, as required, as a single component with the inner channel wall (20), the hub also comprising a series of ribs (28) extending radially between the connecting wall (22) and the inner channel wall (20).Type: ApplicationFiled: October 22, 2013Publication date: October 8, 2015Applicant: SNECMAInventors: Mario Cesar De Sousa, Frederic Noel, Nicolas Pommier, Olivier Renon