Metal airtight seal with bidirectional face, self-energizable by pressure
AssigneeFmc Technologies Do Brasil Ltda
InventorAlejandro Andueza
Life of this patent
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Abstract
A metal airtight seal with bidirectional face, self-energizable by pressure, with axisymmetric or non-axisymmetric configuration, has teeth guided at acute angles, both towards the center of the ring and outside, radially. This geometry may provide the airtight seal the characteristic of being self-energizable by fluid pressure and providing bidirectional sealing, both to the internal pressure and to the external pressure. Furthermore, second element of the airtight seal has a course stopper, to limit the deformation of said metal airtight seal. First and third elements of the airtight seal provide the airtight seal high resistance against internal and external pressure, due to the control of radial slacks.
Claims15
A metal airtight seal with bidirectional face, self-energizable by pressure, the seal being of a ring type with a four-toothed geometry having only four teeth, comprising two teeth guided at a first acute angle radially towards a center axis of the ring type seal, the first acute angle defining an angle between the two teeth guided radially towards the center axis, and two teeth guided at a second acute angle radially towards outside the ring type seal, the second acute angle defining an angle between the two teeth guided radially towards outside the ring type seal, each tooth of the two teeth guided at the first acute angle radially towards the center axis of the seal and the two teeth guided at the second acute angle radially towards outside the ring comprising a rounded protuberance formed on an edge of each tooth and extending parallel to the center axis, the protuberances of the seal defining regions of different pressures.
Dependencies are inferred from the claim text.