Large-diameter in-line seal comprising a sealing plate
AssigneeOnis
InventorYann FUMANAL
Life of this patent
Estimating the term…
Abstract
An in-line seal comprising a sealing plate that is able to move in a plane between a sealing position stopping fluid flow and a flow position allowing said fluid flow; a body comprising a first half-body and a second half-body arranged respectively on either side of said plane; and a clamping/separating system for clamping and, conversely, for separating at least one clamping piece with respect to said sealing plate. According to the invention, said clamping/separating system comprises a first thrust ring, a second thrust ring, at least one assembly that is elastically deformable by compressing comprising a helical spring and a guide shaft, said at least one assembly being arranged between said first thrust ring and said second thrust ring.
Claims8
An in-line seal comprising:
- a sealing plate that is able to move in a plane between a sealing position preventing fluid flow in an internal zone of the in-line seal and a flow position allowing the fluid flow in a direction of fluid flow, the sealing plate comprising a solid portion for preventing the fluid flow and a perforated portion for allowing the fluid flow;
- a body comprising a first half-body and a second half-body arranged respectively on either side of the plane, the first and second half-bodies respectively having a first opening and a second opening allowing the fluid flow;
- and
- a clamping/separating system for clamping and, conversely, for separating at least one clamping piece, the at least one clamping piece being able to move in relation to the body according to at least one degree of freedom to move in translation in a direction of translation parallel to the direction of fluid flow, the at least one clamping piece being arranged between the sealing plate and the first half-body, the clamping/separating system comprising an elastically deformable sealing sleeve extending between the first half-body and the at least one clamping piece the clamping/separating system comprising a first thrust ring secured to the first half-body, a second thrust ring secured to the at least one clamping piece, a plurality of assemblies that are elastically deformable by compressing and arranged equidistant from each other in azimuth about the translation direction, each assembly comprising a helical spring and a guide shaft comprising an axis of revolution oriented parallel to the translation direction the helical spring being arranged between the first thrust ring and the second thrust ring, the helical spring being arranged around the guide shaft,
- wherein the first thrust ring comprises several first sections arranged equidistant from each other in azimuth about the translation direction and the second thrust ring comprises several second sections arranged equidistant from each other in azimuth about the translation direction.
Dependencies are inferred from the claim text.