F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 25/16 (2006.01) F01D 25/18 (2006.01) F16C 27/04 (2006.01)
Patent
CA 2442949
A rolling bearing for a turbomachine supporting a first shaft (4) to rotate relative to a second shaft (6) and comprising: a plurality of rolling elements (12) engaged between an inner annular ring (14) mounted on the second shaft and an outer annular ring (16) mounted on the first shaft; an oil film (18) formed at an annular contact surface between said outer ring and said first shaft; at least one duct (34) passing through said inner ring and opening out in an inner race for said rolling elements in order to lubricate them; and at least one additional duct (38) passing through said inner ring and opening out outside the inner race in order to feed oil through said outer ring to said oil film under the effect of the centrifugal force generated by said second shaft rotating, said outer ring having an annular shoulder (42) projecting radially towards the inside of said annular space, said shoulder having at least one channel (42) opening out substantially in register with said additional duct and opening out into said oil film.
Palier à roulement de turbomachine supportant en rotation un premier arbre (4) par rapport à un second arbre (6) et comportant : une pluralité d'éléments de roulement (12) engagés entre une bague annulaire intérieure (14) montée sur le second arbre et une bague annulaire extérieure (16) montée sur le premier arbre ; un film d'huile (18) formé au niveau d'une surface de contact annulaire entre ladite bague extérieure et ledit premier arbre ; au moins un conduit (34) traversant ladite bague intérieure et débouchant au niveau d'une piste interne de roulement desdits éléments de roulement afin d'assurer leur lubrification ; et au moins un conduit supplémentaire (38) traversant ladite bague intérieure et débouchant à l'extérieur de la piste interne de roulement pour alimenter en huile au travers de ladite bague extérieure ledit film d'huile sous l'effet de la force centrifuge engendrée par la rotation dudit second arbre, ladite bague extérieure comportant un épaulement annulaire (42) faisant saillie radialement vers l'intérieur dudit espace annulaire, ledit épaulement comportant au moins un canal (40) s'ouvrant sensiblement en regard dudit conduit supplémentaire et débouchant au niveau dudit film d'huile.
Dusserre-Telmon Guy
Plona Daniel
Goudreau Gage Dubuc
Snecma
Snecma Moteurs
LandOfFree
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