Radial seal and assembly
AssigneeEaton Corporation
InventorsGerald M. Berard, Edward N. Ruggeri
Life of this patent
Estimating the term…
Abstract
A radial seal and radial seal assembly (10) are disclosed. An embodiment of seal assembly may include an inner rotating shaft (20) with inner rotating shaft fluid feed holes (22); a primary segmented seal (30); a secondary segmented seal (40); a tertiary seal (50) that may axially seal the primary and secondary segmented seals; and an outer housing (60) including a plurality of outer housing fluid feed holes (62). In embodiments, the assembly is configured so that, as the inner rotating shaft rotates, the inner rotating shaft fluid feed holes periodically come into fluid communication alignment with outer housing fluid feed holes.
Claims20
A radial seal assembly, the radial seal assembly comprising:
- an inner rotating shaft, the inner rotating shaft including a plurality of inner rotating shaft fluid feed holes;
- a primary segmented seal including a primary spring;
- a secondary segmented seal including a secondary spring;
- an outer housing, the outer housing including a plurality of outer housing fluid feed holes;
- and
- a tertiary seal configured to axially seal the primary segmented seal and the secondary segmented seal;
- wherein the assembly is configured so that as the inner rotating shaft rotates, the inner rotating shaft fluid feed holes periodically come into fluid communication alignment with the outer housing fluid feed holes.
A radial seal assembly, the radial seal assembly comprising:
- an inner rotating shaft, the inner rotating shaft including a plurality of inner rotating shaft fluid feed holes;
- a primary segmented seal including a plurality of inner cavities, a plurality of primary segmented seal fluid feed holes in fluid communication with the plurality of inner cavities, and a spring;
- and
- an outer housing, the outer housing including a plurality of outer housing fluid feed holes;
- and
- wherein, the assembly is configured such that external fluid under pressure feeds the plurality of primary segmented seal fluid feed holes and the plurality of inner cavities, and pressurizes the inner cavities;
- as the inner rotating shaft rotates, the inner rotating shaft fluid feed holes come into fluid communication with the seal inner cavities, the fluid in the cavities is pressurized to overcome centrifugal forces or loads, and the inner cavities force fluid radially inward through the inner rotating shaft fluid feed holes.
Dependencies are inferred from the claim text.