A damping device for connecting a bearing housing to a bearing outer race is provided. The damping device may permit an allowable range of radial movement of the bearing. The damping device has an elastomeric body connected to one of the bearing outer race and the bearing housing and a cover portion connected to the other one of the bearing outer race and the bearing housing. It also has two or more deformable fluid chambers fluidly connected to one another via at least one orifice and in which fluid is encapsulated. The damping device may dissipate at least partially vibrations travelling between the bearing housing and the bearing outer race by compressing its elastomeric body and by discharging fluid from one fluid chamber to another. There may be a plurality of such damping devices disposed circumferentially about the bearing outer race.

A fluid film damper may comprise a sleeve, an annular support housing surrounding the sleeve, an annular volume between the annular support housing and the sleeve, a first supply conduit in fluid communication with a first inlet to the annular volume, a second supply conduit in fluid communication with a second inlet to the annular volume, wherein the first inlet is disposed opposite the annular volume from the second inlet, and a common oil supply conduit in fluid communication with the annular volume via a check valve, wherein the common oil supply conduit supplies the fluid to the annular volume via the first supply conduit and the second supply conduit.

A bearing assembly for a compressor of an internal combustion engine. The bearing assembly includes an outer ring having an outer cylindrical surface with a first and a second axial section. A positioning component which has a recess with an inner circumference is provided, wherein the positioning component surrounds the outer ring in a region of the second axial section and the positioning component and the outer ring are arranged displaceably relative to one another. To provide an alternative anti-rotation element and an alternative axial stop, at least one sub-section of an inner circumference of the recess of the positioning component is non-uniformly spaced from the center point and the cross-section of the second axial section around the circumference has at least one sub-section with a radius that varies around the contour of the outer cylindrical surface (radius variation). In a first circumferential section, the distance between the contour of the outer cylindrical surface of the second axial section and the axis of rotation is greater than the distance between the contour of the inner circumference of the recess of the positioning component and the axis of rotation in a second circumferential section.

A bearing damper element includes a ring mounted between a rotating object and a supporting object which supports the ring. The ring includes at least three slits through the thickness of the ring in the axial direction and at a distance of the radial inner and outer surface of the ring. At least half of the slits have one or more damping parts with a maximum width of 0.5 millimeters, whereby the damping parts are concentric and do not overlap.

A damping device for connecting a bearing housing to a bearing outer race is provided. The damping device may permit an allowable range of radial movement of the bearing. The damping device has an elastomeric body connected to one of the bearing outer race and the bearing housing and a cover portion connected to the other one of the bearing outer race and the bearing housing. It also has two or more deformable fluid chambers fluidly connected to one another via at least one orifice and in which fluid is encapsulated. The damping device may dissipate at least partially vibrations travelling between the bearing housing and the bearing outer race by compressing its elastomeric body and by discharging fluid from one fluid chamber to another. There may be a plurality of such damping devices disposed circumferentially about the bearing outer race.

An oil scavenge system of a rotatable machine having an axis of rotation is disclosed. The oil scavenge system comprises a sump housing, a scavenge conduit, a bearing, and a squeeze film damper. The sump housing is arranged about the axis and at least partly defining a sump. The sump housing has a radially inner surface for directing the flow of oil and defining a collection orifice. The scavenge conduit is in fluid communication with the collection orifice and a downstream location remote from the sump. The bearing is disposed within the sump. The squeeze film damper is positioned proximate the bearing. The squeeze film damper comprises an annular channel and a supply line. The supply line supplies oil to the annular channel. The squeeze film damper further comprises a discharge line. The discharge line is axially aligned with and discharges toward an inner wall of the scavenge conduit.

A rotor damping device for a turbomachine is provided. The rotor damping device includes a first fluid damper; and a second damper in communication with the first fluid damper, the second damper comprising a wire mesh, wherein the first fluid damper is transitionable between a working condition and an interruption condition, and wherein, during the interruption condition, the wire mesh of the second damper dampens vibration of the turbomachine.

A bearing assembly includes a bearing housing having a first bearing housing surface and a second bearing housing surface. The bearing housing surfaces are substantially axially parallel. A the first bearing housing surface has a first and second piston ring groove with a corresponding piston ring in each groove. A damper includes a first outer surface radially adjacent to and opposing the first bearing housing surface and a second outer surface radially adjacent to and opposing the second bearing housing surface. The second outer surface includes a third and fourth piston ring groove with a corresponding piston ring disposed in each groove. The bearing housing includes a damping fluid passage configured to provide damping fluid to a gap radially between the first outer surface and the first bearing housing surface and to a gap radially between the second outer surface and the second bearing housing surface.

A turbocompound unit is provided. The turbocompound unit includes a turbine shaft, a turbine wheel supported at one end of the turbine shaft and a gear wheel supported at an opposite end of the turbine shaft. Further, the turbocompound unit includes a rolling bearing cartridge including at least two axially spaced-apart raceways, each housing a plurality of rolling elements, wherein the rolling bearing cartridge is arranged concentrically on the turbine shaft between the turbine wheel and the gear wheel for allowing the turbine shaft to rotate.

An apparatus and method for a bearing assembly including a frame, an inner race circumscribing a shaft for a turbine engine, a bearing movable about the inner ring, an outer race circumscribing the at least one rolling element, a spring assembly comprising an inner ring circumscribing the at least one cage, and an outer ring mounted to the frame, and a set of circumferentially arranged spring fingers extending between the inner ring and the outer ring.