DYNAMIC INTERFERENCE SEALING DEVICE AND SYSTEM WITH IMPROVED CONTACT BEHAVIOUR

A sealing system including an annular support, an annular sealing element and an annular shielding element; a first and a second lip of the sealing element interact slidingly with an abutment surface of the shielding element and each include: a root portion which extends perpendicularly in cantileve...

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Bibliographic Details
Main Authors Valsania, Adriano, Cognolato, Gianni Alvise, Foti, Claudio
Format Patent
LanguageEnglish
Published 23.02.2023
Subjects
BEARINGS
BLASTING
CYLINDERS
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PISTONS
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SEALINGS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A sealing system including an annular support, an annular sealing element and an annular shielding element; a first and a second lip of the sealing element interact slidingly with an abutment surface of the shielding element and each include: a root portion which extends perpendicularly in cantilever fashion from a flange portion of the annular support; a flexing portion, which extends in cantilever fashion from the root portion in an oblique direction with a thinner radial thickness, delimited by an annular internal surface facing the abutment surface and by an annular external surface facing towards the support, consisting of surfaces of revolution generated by segments of circumference; and a contact portion including a wedge-shaped overhang and a step portion flanking the overhang, which forms with the abutment surface a first and a second angle (α, β), the first angle facing the annular support and being smaller than the second angle.
Bibliography:Application Number: US202218046177