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Seal carrier for a rotary machine and improved method

A seal, rotary technology, applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve problems such as performance degradation

Inactive Publication Date: 2008-09-24
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While labyrinth seals have proven reliable alone or in combination with brush seals, their performance degrades over time due to transient events such as interference of stationary and rotating parts rubbing the labyrinth teeth into " Mushroom” profile and open seal gap

Method used

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  • Seal carrier for a rotary machine and improved method
  • Seal carrier for a rotary machine and improved method
  • Seal carrier for a rotary machine and improved method

Examples

Experimental program
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Embodiment Construction

[0013] The seal carrier 100 is equipped to a rotary machine (see Figures 1 and 2). Rotary machines are typically selected from the group consisting of electrical generators, steam turbines, gas turbines and x-ray tubes. In one embodiment, the seal carrier 100 typically includes (meaning at least one) a seal 110 and (meaning at least one) a seal ring 120 coupled to the seal 110 , wherein the seal ring 120 includes a seal disposed therein. (meaning at least one) slot 130 . Seals 110 are typically selected from brush seals, labyrinth seals, abradable seals, honeycomb seals, leaf seals, finger seals, ceramic seals, aramid seals, Select from the group consisting of seals and their combinations. For purposes of describing the present invention, it is to be understood that the term "seal carrier 100" includes, but is not limited to, seal carrier segments fabricated in sections that are aligned together to form a complete seal carrier. The seal carrier 100 is attached to a housing ...

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PUM

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Abstract

A seal carrier (100) is provided for a rotary machine wherein the seal carrier (100) comprises a packing ring (120) coupled to a seal (110) and wherein the packing ring (120) comprises a channel (130) disposed therein. In addition, a displacement apparatus (150) is disposed in the channel (130) for radially positioning the seal (110) to control a flow of a fluid (160) in a fluid path.

Description

technical field [0001] The present invention relates generally to a rotary machine, and more particularly to an actuated seal for use on a rotary machine such as a steam or gas turbine. Background technique [0002] Rotary machines include but are not limited to turbines in steam plants and compressors and turbines in gas plants. A steam turbine has a steam passage that typically includes a steam inlet, a turbine, and a steam outlet in serial flow relationship. A gas turbine has a gas passage that typically includes, in serial flow relationship, an air inlet, a compressor, a combustor, a turbine, and a gas outlet (also known as an exhaust nozzle). Leakage of gas or steam from areas of high pressure to areas of low pressure, or out of or into gas or steam passages is generally undesirable. For example, gas passage leaks in the turbine or compressor region of a gas turbine, between the rotor of the turbine or compressor and the circumferentially surrounding turbine or compre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/44
CPCF16J15/445F16J15/442
Inventor 方飙诺曼·A·特恩奎斯特哈米德·R·萨沙尔马穆特·F·阿克西特马克·E·伯尼特弗雷德里克·G·贝利梅米特·德米罗格鲁
Owner GENERAL ELECTRIC CO