Patent classifications
F16C27/04
Shape memory alloy reinforced casing
A casing for a bearing of a gas turbine engine includes a shaft extending along an axial direction. The casing includes an attachment feature at a radially outermost portion of the casing. The attachment feature is configured to be coupled to a static frame of the gas turbine engine. The casing further includes a plurality of support arms extend from the attachment feature to a radially innermost portion of the casing. At least one support arm of the plurality of support arms defines an internal cavity. Further, the radially innermost portion of the casing is configured to be coupled to an outer race of the bearing. The casing additionally includes a reinforcing member housed at least partially within the internal cavity of at least one support arm. Moreover, the reinforcing member includes a shape memory alloy material.
System for the axial retention of a rolling element bearing
A system for the axial retention of a holding ring for a bearing for guiding in rotation a rotary shaft of a turbomachine is disclosed. The system includes an annular bearing support and a bearing holding ring that is borne by the annular bearing support. The bearing holder ring includes an upstream ring configured to be brought into contact with the bearing support and a downstream ring that is elastically deformable. The bearing support has a first axial retention element, and the bearing holding ring has a second axial retention element. The first and second axial retention elements are configured to cooperate with one another to axially retain the bearing holding ring in the event of damage to the downstream ring.
System for the axial retention of a rolling element bearing
A system for the axial retention of a holding ring for a bearing for guiding in rotation a rotary shaft of a turbomachine is disclosed. The system includes an annular bearing support and a bearing holding ring that is borne by the annular bearing support. The bearing holder ring includes an upstream ring configured to be brought into contact with the bearing support and a downstream ring that is elastically deformable. The bearing support has a first axial retention element, and the bearing holding ring has a second axial retention element. The first and second axial retention elements are configured to cooperate with one another to axially retain the bearing holding ring in the event of damage to the downstream ring.
Damper bearing and damper
A damper bearing includes: a bearing portion that supports a rotary shaft; and a tubular portion that is located around an outer circumference of the bearing portion, and has an outer surface attachable to a structural member. The bearing portion can be a hydrostatic bearing that supports the rotary shaft with a predetermined bearing clearance therebetween. The tubular portion includes a plurality of planar slits arranged circumferentially at predetermined intervals in the tubular portion. Each slit extends radially from an open end at the outer surface, and extends circumferentially in an arc to a predetermined point in a region between the outer and inner surfaces. The tubular portion includes a bearing fluid supply hole that is formed in a region where none of the planar slits is situated, and extends from the outer surface of the tubular portion to the bearing portion without passing through any of the planar slits.
Rolling element device with jointly tiltable raceways
A roller element device, in particular for a gas turbine engine, comprises an outer ring with an inner raceway, an inner ring with an outer raceway, and roller elements which are arranged between the raceways so as to roll thereon, wherein the outer ring and the inner ring are each connected via a connecting portion to a respective fixing portion for fixing to one of two components which are rotatable relative to each other about a rotation axis, and the connecting portions are formed such that the two raceways can be jointly tilted at least in portions relative to the rotation axis.
Rolling element device with jointly tiltable raceways
A roller element device, in particular for a gas turbine engine, comprises an outer ring with an inner raceway, an inner ring with an outer raceway, and roller elements which are arranged between the raceways so as to roll thereon, wherein the outer ring and the inner ring are each connected via a connecting portion to a respective fixing portion for fixing to one of two components which are rotatable relative to each other about a rotation axis, and the connecting portions are formed such that the two raceways can be jointly tilted at least in portions relative to the rotation axis.
ROTARY ANODE BEARING ASSEMBLY AND ROTARY ANODE FOR X-RAY TUBE AND METHOD FOR ASSEMBLING A ROTARY ANODE BEARING ASSEMBLY
The disclosure relates, inter alia, to a rotary anode bearing assembly for an X-ray tube comprising at least one bearing outer ring and rolling elements arranged within the at least one bearing outer ring, which rolling elements roll on the at least one bearing outer ring and enclose a radially inner receiving space for receiving a rotor of an X-ray tube; comprising a bearing housing in which the at least one bearing outer ring is mounted, wherein the bearing housing circumferentially surrounds the at least one bearing outer ring.
The rotary anode bearing assembly according to the disclosure is characterized in that an end face of at least one bearing outer ring or of a caulking ring axially adjoining the bearing outer ring is caulked to an end face of the bearing housing by plastic deformation of material of the bearing housing and/or of the bearing outer ring and/or of the caulking ring.
BEARING WITH INTEGRATED AXIAL PRELOAD AND METHOD THEREOF
A bearing, including: an inner ring defining a first groove; an outer ring including a radially inner surface, the radially inner surface facing an axis of rotation of the bearing, defining a second groove, and defining at least one third groove; a cage radially disposed between the inner ring and the outer ring; a plurality of balls retained by the cage, and disposed in the first groove, and in the second groove; an annular sleeve including a first portion disposed in the third groove; and a resilient element urging the outer ring and the annular sleeve away from each other parallel to the axis of rotation of the bearing.
BEARING ASSEMBLY FOR INTEGRATING INTO AN ELECTRIC DRIVE ASSEMBLY FOR A VEHICLE, AND ELECTRIC DRIVE ASSEMBLY COMPRISING THE BEARING ASSEMBLY
A bearing assembly of an electric drive assembly for a vehicle includes an insulating device having a sleeve with an electrically insulating coating, and a bearing device disposed in the sleeve. In an example embodiment, the sleeve has an inner peripheral surface and an outer peripheral surface, and the outer peripheral surface is formed by the electrically insulating coating. In an example embodiment, the sleeve is formed from steel, and the electrically insulating coating is formed from a plastic material having an electrically insulating property. In an example embodiment, the sleeve is designed as a cylinder having an end face with an outer side, and the electrically insulating coating is disposed on the outer side. In an example embodiment, the bearing device is a floating bearing axially movable relative to the sleeve.
BEARING ASSEMBLY FOR INTEGRATING INTO AN ELECTRIC DRIVE ASSEMBLY FOR A VEHICLE, AND ELECTRIC DRIVE ASSEMBLY COMPRISING THE BEARING ASSEMBLY
A bearing assembly of an electric drive assembly for a vehicle includes an insulating device having a sleeve with an electrically insulating coating, and a bearing device disposed in the sleeve. In an example embodiment, the sleeve has an inner peripheral surface and an outer peripheral surface, and the outer peripheral surface is formed by the electrically insulating coating. In an example embodiment, the sleeve is formed from steel, and the electrically insulating coating is formed from a plastic material having an electrically insulating property. In an example embodiment, the sleeve is designed as a cylinder having an end face with an outer side, and the electrically insulating coating is disposed on the outer side. In an example embodiment, the bearing device is a floating bearing axially movable relative to the sleeve.