Tool and method for frontal unscrewing of a link nut in a twin-spool turbine

A method for unscrewing a link nut of an HP rotor of a twin-spool turbine, including a front fan, an intermediate casing, a HP module with a HP rotor, and a LP turbine module, the intermediate casing including a support bearing for the HP rotor, the rotor being retained in the bearing by the link nut, the method including: placing an unscrewing tool in front of the link nut after having removed the fan and released access to the nut from the front; with rotation of the HP rotor locked and the frontal unscrewing tool including a socket spanner including teeth having a shape that complements that of teeth of the link nut, attaching a mounting for the socket spanner to the intermediate casing, the socket spanner being rotatably mounted on the mounting, and applying an unscrewing torque to the socket spanner. An unscrewing tool implements the method.

TOOL AND METHOD FOR FRONTAL UNSCREWING OF A LINK NUT IN A TWIN-SPOOL TURBINE

A method for unscrewing a link nut of an HP rotor of a twin-spool turbine, including a front fan, an intermediate casing, a HP module with a HP rotor, and a LP turbine module, the intermediate casing including a support bearing for the HP rotor, the rotor being retained in the bearing by the link nut, the method including: placing an unscrewing tool in front of the link nut after having removed the fan and released access to the nut from the front; with rotation of the HP rotor locked and the frontal unscrewing tool including a socket spanner including teeth having a shape that complements that of teeth of the link nut, attaching a mounting for the socket spanner to the intermediate casing, the socket spanner being rotatably mounted on the mounting, and applying an unscrewing torque to the socket spanner. An unscrewing tool implements the method. 1. An unscrewing tooling configured to unscrew a connecting nut of a rotor of a gas turbine engine module , comprising:a support for a tubular wrench comprising a cylindrical barrel and four branches extending in a star shape from the barrel, the tubular wrench comprising teeth mounted removably in the barrel of the support, the tubular wrench being locked axially with respect to the support; andan anti-rotation tool configured to block the rotor against any rotational movement about its axis.2. The tooling as claimed in claim 1 , wherein the anti-rotation tool comprises a tubular element comprising wedges claim 1 , the tubular element configured to be introduced inside the HP rotor to immobilize the rotor against rotation. This application is a division of U.S. application Ser. No. 14/397,361 filed Oct. 27, 2014, the entire contents of which is incorporated herein by reference. U.S. application Ser. No. 14/397,361 is a 371 of International application Ser. No. PCT/FR13/050978 filed May 2, 2013, and claims the benefit of priority from prior French Application No. 12 54028 filed May 2, 2012.The present invention relates to ...

PROCESS FOR PRODUCING PROSTHESIS BY RAPID PROTOTYPING

Manufacturing bone prosthesis for filling gaps of all/part of bone of patient, comprises digitalizing patient using three-dimensional medical acquisition device by magnetic resonance, defining prosthesis, and manufacturing the prosthesis

The method comprises digitalizing the patient using a three-dimensional medical acquisition device such as a scanner or an imagery device by magnetic resonance during establishing a file such as osseous representative of remaining osseous volumes of the patient, defining the prosthesis during defining a file such as prosthesis, representative of the shape of the final prosthesis, according to which the final prosthesis comprises a part of replacement of the bone gaps of the patient, and manufacturing the prosthesis during transfer of the prosthesis file towards the rapid prototyping machine. The method comprises digitalizing the patient using a three-dimensional medical acquisition device such as a scanner or an imagery device by magnetic resonance during establishing a file such as osseous representative of remaining osseous volumes of the patient, defining the prosthesis during defining a file such as prosthesis, representative of the shape of the final prosthesis, according to which the final prosthesis comprises a part of replacement of the bone gaps of the patient, manufacturing the prosthesis during transfer of the prosthesis file towards the rapid prototyping machine comprising a laser gun that is guided in response to information of the prosthesis file in a prototype powder layer to operate a fusion with the selective laser part of each layer so as to manufacture a section of a support and/or a section of prosthesis, and performing finishing step. The part is obtained from the bone file of the patient by symmetry of bone parts corresponding to the patient and/or from the bone file of an intact model by transposition of the bone parts of the models. The file comprises a support for manufacturing the prosthesis to realize a succession of the cross-sections thickness whose stack determines the shape of the prosthesis, and instructions series for a laser beam of rapid prototyping machine intended to allow the manufacturing of the support and prosthesis. In the ...

Tool and method for frontal unscrewing of a link nut in a twin-spool turbine

La présente invention porte sur un procédé de dévissage de l'écrou de liaison du rotor HP d'un turboréacteur à double corps, comportant une soufflante avant, un carter intermédiaire (7), un module HP avec un rotor HP et un module de turbine BP, le carter intermédiaire ayant un palier support du rotor HP, ledit rotor étant retenu dans le palier par l'écrou de liaison, le procédé comportant une étape de mise en place d'un outil de dévissage par l'avant de l'écrou de liaison après avoir démonté la soufflante et dégagé à l'avant l'accès à l'écrou, le procédé est caractérisé par le fait que, le rotor HP étant calé en rotation, l'outil de dévissage avant comprenant une clé tubulaire (320) pourvue de dents de forme complémentaire à celle des dents de l'écrou de liaison, un support (310) pour la clé tubulaire (320) est fixé sur le carter intermédiaire, la clé tubulaire (320) est montée à rotation sur le support, etun couple de dévissage est appliqué sur ladite clé tubulaire (320). L'invention porte également sur l'outillage de dévissage pour la mise en uvre du procédé de l'invention.

Vehicles riding on air cushions

A vehicle riding on air cushions in which the lift of a platform is ensured by an arrangement of flexible skirts defining a central air-lift area at substantially constant pressure and a partitioned peripheral air-lift area. A closed loop of adjacent tubular skirts is inserted between the central and peripheral air-lift areas to increase the flying stability of the vehicle.

Tool and method for frontal unscrewing of a link nut in a twin-spool turbine

La présente invention porte sur un procédé de dévissage de l'écrou de liaison du rotor HP d'un turboréacteur à double corps, comportant une soufflante avant, un carter intermédiaire (7), un module HP avec un rotor HP et un module de turbine BP, le carter intermédiaire ayant un palier support du rotor HP, ledit rotor étant retenu dans le palier par l'écrou de liaison, le procédé comportant une étape de mise en place d'un outil de dévissage par l'avant de l'écrou de liaison après avoir démonté la soufflante et dégagé à l'avant l'accès à l'écrou, le procédé est caractérisé par le fait que, le rotor HP étant calé en rotation, l'outil de dévissage avant comprenant une clé tubulaire (320) pourvue de dents de forme complémentaire à celle des dents de l'écrou de liaison, un support (310) pour la clé tubulaire (320) est fixé sur le carter intermédiaire, la clé tubulaire (320) est montée à rotation sur le support, etun couple de dévissage est appliqué sur ladite clé tubulaire (320). L'invention porte également sur l'outillage de dévissage pour la mise en uvre du procédé de l'invention. The present invention relates to a method of unscrewing the rotor connection nut HP of a double-body turbojet, comprising a front blower, an intermediate casing (7), an HP module with an HP rotor and a turbine module. BP, the intermediate casing having a support bearing of the rotor HP, said rotor being retained in the bearing by the connecting nut, the method comprising a step of setting up a unscrewing tool by the front of the nut connection after disassembling the blower and disengaged from the front access to the nut, the method is characterized in that, the HP rotor being wedged in rotation, the front unscrewing tool comprising a tubular key (320 ) provided with teeth of complementary shape to that of the teeth of the connecting nut, a support (310) for the tubular key (320) is fixed on the intermediate casing, the tubular key (320) ...

Process for the storage of oxidizable products or materials

unscrewing tool, and method for unscrewing the hp rotor connecting nut from a two-spool turbine

1 / 1 resumo “ferramenta de desaparafusamento, e, mã‰todo para desparafusar a porca de conexãƒo do rotor de hp de uma turbina de dois carretã‰isâ€� a presente invenã§ã£o refere-se a um mã©todo para desparafusar a porca de conexã£o do rotor de hp de uma turbina de carretel duplo, compreendendo uma ventoinha frontal, uma caixa intermediã¡ria (7) um mã³dulo de hp com um rotor de hp e um mã³dulo de turbina de lp, a caixa intermediã¡ria tendo um mancal de suporte para o rotor de hp, o dito rotor sendo retido no mancal pela porca de conexã£o, o mã©todo compreendendo a etapa de colocar uma ferramenta de desaparafusamento em frente ã  porca de conexã£o apã³s ter sido removida a ventoinha e liberado o acesso ã  porca pela frente, o mã©todo caracterizado pelo fato de, com a rotaã§ã£o do rotor de hp travada e a ferramenta de desaparafusamento frontal incluir uma chave de soquete (310) provida de dentes tendo uma forma que complementa a dos dentes da porca de conexã£o, uma montagem (310) para a chave de soquete (320) ser anexada ã  caixa intermediã¡ria, a chave de soquete (320) ser montada de modo rotativo sobre a montagem, e um torque de desaparafusamento ser aplicado ã  dita chave de soquete (320). a invenã§ã£o refere-se ainda ã  ferramenta de desaparafusamento para implementar o mã©todo da invenã§ã£o. 1/1 summary “Unscrewing tool, and method for unscrewing the hp rotor connecting nut of a two-reel turbine” The present invention relates to a method for unscrewing the hp rotor connecting nut of a double spool turbine, comprising a front fan, an intermediate housing (7) an hp module with an hp rotor and an lp turbine module, the intermediate housing having a support bearing for the hp rotor, said rotor being retained in the bearing by the connecting nut, the method comprising the step of placing an unscrewing tool in front of the connecting nut after the fan has been removed and access to the front nut has been released, the method characterized by the fact that with the hp ...

Preparation of estradiol and intermediates thereof

Preparation of estradiol and intermediates thereof

Tool and method for frontal unscrewing of a link nut in a twin-spool turbine

A method for unscrewing a link nut of an HP rotor of a twin-spool turbine, including a front fan, an intermediate casing, a HP module with a HP rotor, and a LP turbine module, the intermediate casing including a support bearing for the HP rotor, the rotor being retained in the bearing by the link nut, the method including: placing an unscrewing tool in front of the link nut after having removed the fan and released access to the nut from the front; with rotation of the HP rotor locked and the frontal unscrewing tool including a socket spanner including teeth having a shape that complements that of teeth of the link nut, attaching a mounting for the socket spanner to the intermediate casing, the socket spanner being rotatably mounted on the mounting, and applying an unscrewing torque to the socket spanner. An unscrewing tool implements the method.