|Table of Contents|

Parameter optimization and experimental verification of non-contacting end-face seals in cryogenic condition(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2013年04期
Page:
56-61
Research Field:
研究与设计
Publishing date:

Info

Title:
Parameter optimization and experimental verification of non-contacting end-face seals in cryogenic condition
Author(s):
CHEN Jie; LI Jian-ke; WANG Shao-peng
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
-
PACS:
V434-34
DOI:
-
Abstract:
Aiming at the shortcomings of the traditional end-face seal in the LOX/kerosene rocket engine, such as high temperature rise caused by large friction and lack of reusability, the model of non-contacting end-face seal was established on the basis of infinitely long plane parallel groove theory named as Whipple theory, the effects of the seal structure parameters on sealing performance including air film stiffness and leakage were simulated, and the structural parameters of non-contacting end-face seal were optimized to obtain the best film stiffness. The correctness of op

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