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US 11,892,083 B2Granted
Piston seal ring
AssigneeRtx Corporation
InventorsLiam P. Sullivan, Nicholas J. Lawliss, Xuejun Liu, John P. Virtue, Jr., Kalpendu J. Parekh
Life of this patent
Estimating the term…
Abstract
A split ring seal has: a first circumferential end and a second circumferential end; an inner diameter surface and an outer diameter surface; a first axial end face and a second axial end face. A circumferentially distributed first plurality of open channels are along the first axial end face. A circumferentially distributed second plurality of open channels are along the second axial end face.
Claims20
A split ring seal comprising:
- a first circumferential end and a second circumferential end;
- an inner diameter surface and an outer diameter surface;
- a first axial end face and a second axial end face;
- a circumferentially distributed first plurality of open channels along the first axial end face;
- and
- a circumferentially distributed second plurality of open channels along the second axial end face,
- wherein:
- the first circumferential end and the second circumferential end form a joint;
- of the first plurality of open channels, two channels closest to diametrically opposite the joint are the largest in cross-sectional area;
- and
- of the second plurality of open channels, two channels closest to diametrically opposite the joint are the largest in cross-sectional area.
8 more elements
An apparatus comprising:
- an inner member;
- an outer member encircling the inner member;
- and
- a split ring seal accommodated in a groove in one of the inner member and the outer member and contacting a surface of the other of the inner member and the outer member,
- wherein:
- the split ring seal comprises:
- a first circumferential end and a second circumferential end;
- an inner diameter surface and an outer diameter surface;
- and
- a first axial end face and a second axial end face;
- the first circumferential end and the second circumferential end form a joint;
- the split ring seal comprises venting means for bypassing the seal so as to compensate for an asymmetry of flow due to leakage through the joint.
9 more elements
Dependencies are inferred from the claim text.