LEAKAGE ACCOUNT FOR RADIAL FACE CONTACT SEAL IN AIRCRAFT ENGINE SUPPORT

2017 International Conference on Aerospace Technology, Communications and Energy Systems

航空航天工程;无线电电子学;能源学

Vinogradov, A.S.^1 ; Sergeeva, T.V.^1

Department of Design and Engineering of Aircraft Engines, Institute of Aircraft Engines Design and Power Plants, Samara National Research University, 34 Moskovskoye shosse, Samara, Russia^1

关键词: Bearing support;    Engine operations;    Face contacts;    Gap clearance;    Leakage detection;    Leakage value;    Operating modes;    Seal rings;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/302/1/012003/pdf
DOI  :  10.1088/1757-899X/302/1/012003

学科分类：航空航天科学

来源: IOP

【 摘 要 】

The article is dedicated to the development of a methodology for the radial face contact seal design taking into consideration the supporting elements deformations in different aircraft engine operating modes. Radial face contact seals are popular in the aircraft engines bearing support. However, there are no published leakage calculation methodologies of these seals. Radial face contact seal leakage is determined by the gap clearance in the carbon seal ring split. In turn, the size gap clearance depends on the deformation of the seal assembly parts and from the engine operation. The article shows the leakage detection sequence in the intershaft radial face contact seal of the compressor support for take-off and cruising modes. Evaluated calculated leakage values (2.4 g/s at takeoff and 0.75 g/s at cruising) go with experience in designing seals.