Analysis of spiral-groove face seals for liquid oxygenAnalyses and predicted performance of a 50-mm diameter, spiral-groove face seal to seal liquid oxygen at 5.17 MPa pressure, and operating at surface speeds of 183 m/s are described. The pressure-balanced spiral-groove concept is introduced that circulates spiral-groove flow independent of leakage flow. Independent flow paths preclude overheating from vaporization and consequent flow blockage. The analysis accounts for fluid turbulence and inertia, thermoelastic distortions, and dynamic response. An operating-range map was developed as a function of speed and pressure. The fluid-film analysis is summarized in the Appendix.
Document ID
19830062121
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Shapiro, W. (Mechanical Technology, Inc. Latham, NY, United States)
Walowit, J. (Mechanical Technology, Inc. Latham, NY, United States)
Jones, H. F. (Mechanical Technology, Inc. Latham, NY, United States)