Back to results
US 10,605,254 B2Granted
Bearing element and turbomachine with a bearing element
AssigneeRolls-Royce Deutschland Ltd & Co KG
InventorsBjorn Ulrichsohn, Susanne Schruefer, Karl Schreiber
Life of this patent
Estimating the term…
Abstract
A bearing element for at least one adjustable guide vane of a turbomachine, in particular an aircraft engine, is provided. The bearing element comprising a porous matrix made of carbon and/or graphite and at least one metallic phase or a metal salt that is at least partially arranged inside the pores of the matrix, so that what results is a metal-infiltrated or a metal-salt-infiltrated material.
Claims20
A turbomachine including:
- an adjustable guide vane;
- and
- a bearing element for the adjustable guide vane, the bearing element comprising:
- a porous matrix made of at least one chosen from carbon and graphite;
- at least one chosen from a metallic phase and a metal salt arranged at least partially inside a pore of the porous matrix, resulting in at least one chosen from a metal-infiltrated material and a metal-salt-infiltrated material;
- and
- a reception area for a shaft end of the adjustable guide vane, wherein the reception area includes a contact surface, and wherein the contact surface has neither a coating nor a fitted bushing.
4 more elements
A method for manufacturing a turbomachine, comprising:
- providing:
- an adjustable guide vane;
- and
- a bearing element for the adjustable guide vane, the bearing element comprising:
- a porous matrix made of at least one chosen from carbon and graphite;
- at least one chosen from a metallic phase and a metal salt;
- arranging the porous matrix inside an infiltration device,
- inserting the at least one chosen from the metallic phase and the metal salt into a pore of the porous matrix as an external pressure or an external force is being exerted;
- and
- wherein the bearing element includes a reception area for a shaft end of the adjustable guide vane, wherein the reception area includes a contact surface, and wherein the contact surface has neither a coating nor a fitted bushing.
7 more elements
A turbomachine including:
- an adjustable guide vane;
- and
- a bearing element for the adjustable guide vane, the bearing element consisting only of:
- a porous matrix made of at least one chosen from carbon and graphite;
- and
- at least one chosen from a metallic phase and a metal salt arranged at least partially inside a pore of the porous matrix, resulting in at least one chosen from a metal-infiltrated material and a metal-salt-infiltrated material.
3 more elements
Dependencies are inferred from the claim text.