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Machine translation
1. (WO1981001167) LUBRICATING DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001167    International Application No.:    PCT/SE1980/000242
Publication Date: 30.04.1981 International Filing Date: 06.10.1980
IPC:
E21B 10/24 (2006.01), F16N 7/00 (2006.01)
Applicants:
Inventors:
Priority Data:
86436 19.10.1979 US
Title (EN) LUBRICATING DEVICE
(FR) DISPOSITIF DE LUBRIFICATION
Abstract: front page image
(EN)A device for lubricating rotary drill bits of the type comprising a roller cutter (14) which is rotatably carried by means of a bearing system (15, 16, 17, 18). Fluid is supplied to the bearing system for cooling thereof through a cooling passage (31, 32, 33; 51, 61), and a lubricant is delivered to the cooling passage from a lubricant reservoir (36; 46). For purposes of making possible addition of lubricant to waterfree fluid the cooling passage is disposed radially inwardly of a passage for flushing fluid.
(FR)Un dispositif de lubrification de meche de forage rotative comprenant une haveuse a rouleaux (14) qui est portee de maniere rotative par un systeme a palier (15, 16, 17, 18). On alimente en fluide le systeme a palier pour le refroidir au travers d'un passage de refroidissement (31, 32, 33; 51, 61), et un lubrifiant est amene dans le passage de refroidissement a partir d'un reservoir de lubrifiant (36; 46). Afin de rendre possible l'addition de lubrifiant a un fluide sans eau, le passage de refroidissement est dispose radialement vers l'interieur d'un passage de fluide de chasse.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)