Seal
AssigneeALSTOM Technology Ltd
InventorJonathan David SEATON
Life of this patent
Estimating the term…
Abstract
The invention relates to a sealing system for sealing between a first component and a second component wherein at least one or either the first component or the second component is a rotating component. The first component has a circumferential groove in which a sealing segment has first and fifth end portions adjacent the groove and second, third and fourth portions that form a U shape that mirrors the shape of and extends into the circumferential groove.
Claims3
A sealing system for sealing between a first component and a second component wherein at least one or either of the first component or the second component is a rotating component, the sealing system comprising:
- the first component with a circumferential groove extending into the first component, wherein the second component partially extends radially into the groove;
- a continuous sealing segment, between the first component and the second component, partially extending into the groove, comprising:
- a first portion, with a first end, the first portion extending axially in a downstream direction to the first end and further having a sealing face with a series of sealing elements located between the first component and the sealing segment;
- a second portion, having a second end, the second portion extending radially from the first end into the groove to a second end, having a sealing face;
- a third portion, having a third end, the third portion extending axially from the second end in the groove to a third end, having a sealing face with a series of sealing elements located between the first component and the sealing segment;
- a fourth portion, extending radially out of the groove from the third end a fourth end, having a sealing face;
- a fifth portion, extending axially in a downstream direction from the fourth end to a fifth end, having a sealing face with a series of sealing elements located between the first component and the sealing segment;
- and
- a pressure face, wherein the extension of the second portion, third portion and fourth portion forms a U-shaped region in the pressure face that mirrors the shape of the groove;
- the second component which faces the pressure face and extends at least partially into the U-shaped region of the pressure face, wherein:
- the second portion sealing face and the first component form a first region therebetween;
- and
- the second portion pressure face and the second component form a second region therebetween that is axially opposite the first region;
- the fourth portion sealing face and the first component form a third region therebetween;
- and
- the fourth portion pressure face and the second component form a fourth region therebetween that is axially opposite the third region.
Dependencies are inferred from the claim text.