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Aspirating face seal composite member of turbomachine

一种组合件、面密封的技术，应用在发动机的密封、发动机元件、泵元件等方向，能够解决增大总体发动机维护成本、其它组件损坏、增大燃料消耗等问题

Active Publication Date: 2018-09-14
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Fluid leakage through gas turbine engine seal assemblies can significantly increase fuel consumption and adversely affect engine efficiency
Additionally, fluid leaks can cause damage to other components and / or increase overall engine maintenance costs
At least some known seal assemblies may degrade over time due to the location and / or operating environment of the seal assembly

Method used

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  • Aspirating face seal composite member of turbomachine
  • Aspirating face seal composite member of turbomachine
  • Aspirating face seal composite member of turbomachine

Examples

Experimental program
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Embodiment Construction

[0075] Figures 1 to 3 A first exemplary embodiment of a suction face seal assembly 12 is illustrated in , having an annular suction face seal 16 and a secondary seal 18, described herein as including figure 2 The piston ring 20 shown in. Seal assembly 12 is designed to control leakage or sealing between high pressure region 48 and low pressure region 46, such as in figure 1 Leaks or seals that may be found in the turbine of the gas turbine engine 10 shown in . Turbomachines include, but are not limited to, steam turbines, compressors and turbocompressors, or similar equipment such as may be used in the oil and gas industry.

[0076] refer to figure 1 , an exemplary embodiment of a turbine or gas turbine engine 10 surrounds the centerline axis 8 of the engine 10 and includes an annular stationary stator or non-rotatable member 102 coupled to an annular frame 103 and at least partially A rotating or rotatable member 104 rotatably supported by a rear bearing 108 . Frame 10...

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PUM

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Abstract

Aspirating face seal between high and low pressure regions of turbomachine between rotatable and non-rotatable members of turbomachine includes gas bearing rotatable and non-rotatable face surfaces, non-rotatable face surface mounted on annular slider on non-rotatable member. Retracting means retracts annular slider away from rotatable member and non-rotatable face surface away from rotatable surface and includes circumferentially spaced apart non-coiled springs axially disposed between slider and non-rotatable engine member.

Description

technical field [0001] The present invention relates generally to a suction face seal between a rotor and stator assembly, and more particularly to a suction face seal with a retraction spring. Background technique [0002] Suction face seals minimize leakage of fluids such as compressed air or combustion gases by restricting flow between high pressure and low pressure regions. Suction face seals control leakage by compensating for variations in clearances that may exist between the rotor and stator. Such seals have been disclosed for use in rotating machinery including, but not limited to, gas turbine engines for power generation and for aircraft and marine propulsion. [0003] Fluid leakage through gas turbine engine seal assemblies can significantly increase fuel consumption and adversely affect engine efficiency. Additionally, fluid leaks may cause damage to other components and / or increase overall engine maintenance costs. At least some known seal assemblies may degr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D11/16
CPCF01D11/16F01D11/001F01D11/003F01D11/025F04D29/164F04D29/526F05D2260/38F05D2260/52F16J15/447Y02T50/60F01D11/02F16J15/022
Inventor B.J.普伦格尔R.A.维斯林N.E.M.吉布森R.S.贾尼格尔N.A.哈迪卡A.A.库尔卡尼
Owner GENERAL ELECTRIC CO