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Theoretical Analysis of Spiral-Grooved Screw Seal for Turbulent Operation
Publisher: The American Society of Mechanical Engineers (ASME)
Helical-Grooved Journal Bearing Operated in Turbulent Regime
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An analysis for helical bearings operated in turbulent regime, with negligible inertia in an incompressible fluid film, was performed [10, 11]. The analysis is based on the linearised lubrication ...
Characteristics of Herringbone-Grooved, Gas-Lubricated Journal Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A differential equation is obtained for the smoothed “overall” pressure distribution around a herringbone-grooved, gas-lubricated journal bearing operating with a variable film thickness. The equation ...
Performance Characteristics of Spiral-Groove and Shrouded Rayleigh Step Profiles for High-Speed Noncontacting Gas Seals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Current methods in gas lubrication have been used in this paper to analyze the gas-film characteristics in a high-speed, face-type gas seal. Detailed analyses are presented for two different ...
Optimum Surface Profile for the Enclosed Pocket Hydrodynamic Gas Thrust Bearing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The relative importance, with respect to load-carrying capacity, of each geometrical parameter in a self-lubricated thrust bearing, with an enclosed pocket, is examined at Λ = 0.55. The bearing ...
Behavior of Hydrostatic and Hydrodynamic Noncontacting Face Seals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the pressure generation and static stability of face-type seals are discussed and an expression is developed to estimate the effectiveness of hydrodynamic action in these seals. ...