ROTATING SHAFT SEAL

PROBLEM TO BE SOLVED: To provide a rotating shaft seal capable of maintaining stable sealing performance for a long time even when strict requests such as high rotation and low leakage are made.SOLUTION: In the rotating shaft seal, first and second seal elements 1, 2 curved into an approximately J-s...

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Bibliographic Details
Main Authors FUJII NOBUKAZU, OIDA HIROKI
Format Patent
LanguageEnglish
Published 13.10.2011
Subjects
BLASTING
CYLINDERS
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PISTONS
SEALINGS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a rotating shaft seal capable of maintaining stable sealing performance for a long time even when strict requests such as high rotation and low leakage are made.SOLUTION: In the rotating shaft seal, first and second seal elements 1, 2 curved into an approximately J-shaped cross section via curved wall parts 5 and into a basic thickness T are curved along a shaft axial center L in opposite directions. Strip-shaped recessed circumferential grooves 7 are formed on opposing surfaces 6 of the respective curved wall parts 5 of the first and second seal elements 1, 2. Tip edges 8 come into contact with an outer surface 9a of a rotating shaft 9 with the contact surface pressure at a peak and the contact width E not greater than twice the basic thickness T.
Bibliography:Application Number: JP20100071511