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VNII BUROVO
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VNII BUROVO
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Priority to ES495234ApriorityCriticalpatent/ES8106587A1/es
Publication of ES495234A0publicationCriticalpatent/ES495234A0/es
Publication of ES8106587A1publicationCriticalpatent/ES8106587A1/es
MOTORES DE TORNILLO CON HILOS DE ROSCA MULTIPLE PARA PERFORACION DE FONDOS DE POZO. CONSISTE EN QUE LA RAZON ENTRE LOS PASOS DE LAS SUPERFICIES HELICOIDALES DEL ESTATOR Y DEL ROTOR Y SUS DIAMETROS DE PASOS RESPECTIVOS OSCILA SUSTANCIALMENTE DE 5,5 A 12, ELIMINANDO LOS FENOMENOS DE AUTOFRENADO.
ES495234A1980-09-221980-09-22Un motor de engranaje planetario de hilos de rosca multiples.
ExpiredES8106587A1
(es)
Procedimiento de fabricacion de un inserto que presenta la forma general de un tubo filtrado interiormente y exteriormente y herramienta para su realizacion.