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Seal

A technology of sealing elements and sealing surfaces, applied in the direction of engine sealing, engine components, machines/engines, etc., can solve the problem of high friction

Active Publication Date: 2016-04-13
GENERAL ELECTRIC TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the gland needs to move radially, the friction caused by the axial thrust may be higher

Method used

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  • Seal

Examples

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Embodiment Construction

[0040] Exemplary embodiments of the present disclosure will now be described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, the present disclosure may be practiced without these specific details and is not limited to the exemplary embodiments disclosed herein.

[0041] figure 1 The exemplary embodiment of the sealing system shown in includes a rotating member 10, a stationary member 15, and a continuous sealing segment 20 positioned between the rotating member 10 and the stationary member 15 to provide a seal between the rotating member 10 and the stationary member 15. gap. In this context, a continuous sealing segment is formed as a single piece or joined such that it has the properties of a single piece, where two adjacent members th...

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Abstract

The invention relates to a sealing system for sealing between a first component (10) and a second component (15) wherein at least one or either the first component (10) or the second component (15) is a rotating component (10). The first component (10) has a circumferential groove (40) in which a sealing segment (20) has first (21) and fifth (25) end portions adjacent the groove and second (22), third (23) and fourth (24) portions that form a U shape that mirrors the shape of and extends into the circumferential groove (40).

Description

technical field [0001] The present disclosure relates generally to sealing systems for sealing between movable and stationary components, and more particularly to retractable sealing systems. Background technique [0002] Shaft seals have been known for a long time and are used in steam turbines to seal between rotating components. One commonly used seal is a retractable seal that includes an arcuate segment with a sealing surface on which a labyrinth seal element sits, and a necked-in portion on the pressure side of the seal segment . The necked portion is configured to fit into a T-slot configured in the stationary member. The segments of a segment row are disposed consecutively in the circumferential direction in their T-shaped slots and are arranged so that each segment elastically yields in the radial direction substantially independently of the adjacent segments so that in an applied radial Upon contact under thrust, it deflects radially and returns to its original ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D11/08
CPCF16J15/4472F16J15/4476F16J15/3236F16J15/3268
Inventor J.D.西顿
Owner GENERAL ELECTRIC TECH GMBH
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