Self-stabilizing radial face seal

US4260166A · kind A · utility

Inventors

• Robert A. Administrator of the National Aeronautics and Space Frosch · La Cañada Flintridge, US
• Izhak Etsion · Haifa, IL

Key dates

• Filing date: Nov 17, 1978
• Grant date: Apr 7, 1981
• Expiry date: Nov 17, 1998

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J15/342
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A self-stabilizing radial face seal comprising an axial member, a primary seal ring juxtapositioned to a seal seat, at least one of said primary seal ring and seal seat being affixed to said axial member so as to rotate therewith, said primary seal ring having a front face which opposes a face of said seal seat, said seal having both high-pressure and low-pressure regions of fluid, said seal seat being provided with a porous ring-like circumferential structure in the face of said seal seat opposite said front face of said primary seal ring.