F16C33/784

AIRCRAFT ENGINE WITH SQUEEZE FILM DAMPER
20240401529 · 2024-12-05 ·

An aircraft engine, comprising: a shaft; a bearing housing extending around the shaft and defining a bearing cavity; a bearing in the bearing cavity and rotatably supporting the shaft; a squeeze film damper including: a first seal proximate a first end of the bearing, and a second seal proximate a second end of the bearing; an annulus between the first seal and the second seal, the annulus having a damping fluid in the annulus; and wherein at least the first seal includes a sealing ring received within a groove extending axially from an outer groove wall to an inner groove wall, the inner groove wall located axially between the outer groove wall and the annulus, the sealing ring having an outer ring face facing the outer groove wall and an inner ring face facing the inner groove wall, the inner ring face being movable relative to the outer ring face.

Bearing ring, method for manufacturing such a ring and bearing comprising such a ring
09677615 · 2017-06-13 · ·

A bearing ring comprising at least one jamming bead of a seal, each bead protruding relative to a radial surface of the ring, in an orthoradial direction relative to a central axis of the ring.

SEAL MEMBER, AND ROLLING BEARING FOR WINDMILL MAIN SHAFT
20170082145 · 2017-03-23 · ·

A seal member is disposed between an inside member and an outside member which rotate relative to each other. The seal member includes: a ring-shaped sliding contact portion which is made of a non-foam rubber and which includes a seal lip slidably contacting one member of the inside member and the outside member; and a body portion which is made of a foam rubber, which includes a ring-shaped joining portion joined to the sliding contact portion, and which contacts the other member of the inside member and the outside member in a radial direction and is fixed to the other member.

Bearing installed on an aircraft structure

An edge flap arrangement for an aircraft wing includes a main flap element and an actuator. A linkage arrangement supports the main flap. The linkage arrangement includes a drop hinge link arrangement. The drop hinge link arrangement includes a fixed strut and a drop link. The fixed strut and the drop link are pivotally connected by a hinge point. The hinge point includes an hourglass bearing. The hourglass bearing includes an inner member, an outer member, and a plurality of hourglass rollers. Any combination of the inner member, the outer member, and the hourglass rollers are fabricated from CREN, Cronidur 30, XD15NW, 422 Stainless Steel, CRES, and/or 440C Stainless Steel. A cage is disposed between the inner member and the outer member. The cage includes a plurality of first rails and a plurality of second rails. Opposing pairs of first rails and second rails define a plurality of pockets.

Bearing seal for media lubrication

A rolling bearing assembly including a radially inner ring defining an inner race, a radially outer ring defining an outer race, and rolling elements supported between the inner ring and the outer ring is provided. At least one filter seal is arranged between the radially inner ring and the radially outer ring. The at least one filter seal includes a first washer having a first plurality of openings, a second washer having a second plurality of openings, and a filter washer arranged axially between the first and second washers, and the first washer, second washer, and filter washer are laminated together.

Aircraft engine with squeeze film damper

An aircraft engine, comprising: a shaft; a bearing housing extending around the shaft and defining a bearing cavity; a bearing in the bearing cavity and rotatably supporting the shaft; a squeeze film damper including: a first seal proximate a first end of the bearing, and a second seal proximate a second end of the bearing; an annulus between the first seal and the second seal, the annulus having a damping fluid in the annulus; and wherein at least the first seal includes a sealing ring received within a groove extending axially from an outer groove wall to an inner groove wall, the inner groove wall located axially between the outer groove wall and the annulus, the sealing ring having an outer ring face facing the outer groove wall and an inner ring face facing the inner groove wall, the inner ring face being movable relative to the outer ring face.

Seal member for rolling bearing

Provided is a seal member for rolling bearing, which includes a seal body, and a coating layer that contains an antiozonant and silicone oil, and is formed on a surface of the seal body. The seal member for rolling bearing can be produced by applying on a surface of the seal body, a coating composition containing 10 to 30% by weight of an antiozonant and 3 to 10% by weight of silicone oil, the antiozonant and the silicone oil being dispersed in a solvent.