Abstract: A sealing ring with a dynamically loaded sealing lip having a sealing edge and a tension element for stabilizing the sealing lip in the radial direction, wherein: the tension element is arranged in a mounting groove; the mounting groove is arranged in the sealing lip on the side facing radially away from the sealing edge and has a mounting opening on the side facing radially away from the sealing edge, which opening is delimited by two guide webs arranged so as to be adjacent to each other at a spacing in the axial direction; the sealing lip is articulated, on its side facing axially away from the sealing edge, to a support member with a joint; and the sealing lip and the support member delimit, with their sides which radially face each other, a substantially C-shaped joint space which is open on one side in the axial direction.

Abstract: A sealing structure enables easy fitting of an endless backup ring and includes: tank main body having filling chamber body with filling chamber and mouthpiece portion formed in cylindrical shape integrally with filling chamber body; valve body having insertion portion inserted in mouthpiece portion; O-ring provided between mouthpiece portion and insertion portion; and first backup ring endless and disposed on one side of O-ring to restrict movement of O-ring, wherein annular housing groove is formed on inner circumferential surface of mouthpiece portion such as to be recessed outward with respect to radial direction in order to house O-ring and first backup ring, wherein mouthpiece portion is provided with first cylindrical portion integral with filling chamber body and second cylindrical portion attachable/detachable along axial direction to/from first cylindrical portion, and wherein housing groove is divided along axial direction to face outward when second cylindrical portion detaches from first cylindri

Abstract: A sealing device is provided with a seal lip which extends toward a sealing space side, a lip edge and an opposite sealing space side conical surface are formed in an inner peripheral surface of the seal lip, the lip edge being slidably brought into close contact with an outer peripheral surface of a rotating body, and the opposite sealing space side conical surface being larger in diameter from the lip edge toward an external space side, a plurality of screw protrusions are formed in the opposite sealing space side conical surface, the screw protrusions generating a screw pump action toward the lip edge side on the basis of rotation of the rotating body in a fixed direction, and a desired number of dust capture portions are formed in a hem portion of each of the screw protrusions, thereby preventing dusts from being bitten into the lip edge sliding portion.

Abstract: A magnetic fluid seal includes a pole ring having an inner diameter, a rotatable shaft having an outer diameter, the rotatable shaft configured to extend along the inner diameter of the pole ring between an atmosphere side and vacuum side, at least one magnet coupled to the pole ring, the at least one magnet configured to emit a magnetic field having a strength and a shape, and grooves formed on either the inner diameter of the pole ring or the outer diameter of the shaft, the grooves capable of containing ferromagnetic fluid. The ferromagnetic fluid contained the grooves varies so as to improve the performance of the magnetic fluid seal.

Abstract: A sealing assembly for a shaft includes: a first sealing component; a first spring energizer associated with said first sealing component; an annular support member configured for supporting said first sealing component; a second sealing component; a second spring energizer associated with said second sealing component, said first and second sealing components each having a pair of seal lips, said pairs of seal lips facing each other, said first and second spring energizers each configured for energizing respectively said first and second sealing components, each said spring energizer being respectively between one said pair of seal lips, said annular support member being disposed about the shaft and positioned between said first and second sealing components and said first and second spring energizers, said annular support member including two outwardly facing protuberances each of which interfits with a respective said pair of seal lips.

Abstract: Provided is a sealing device that increases the lubricity of seal surfaces, prevents leakage of sealed fluids, and prevents excessive heat generation and excessive friction at seal surfaces. Said sealing device, which is of the type that seals a fluid trying to leak from the outer periphery of a sealing surface towards the inner periphery thereof, forms at least two dimples in a circumferential direction in each of a plurality of rows arranged in a radial direction on a sealing surface of a stationary-side sealing element or a rotating-side sealing element. Each dimple is tilted by a dimple angle ? between 0° and 90°, exclusive, such that the tip of that dimple in the direction of rotation is tilted toward the inner periphery side. In each of the plurality of rows of dimples, land areas are formed in the circumferential direction between the proximate tips of adjacent dimples.

Abstract: A sliding component, which achieves both sealing and lubrication by preventing cavitation from occurring in the dynamic-pressure generation mechanism and thereby solving the problem of leakage that will otherwise result from such cavitation, is characterized in that, on a sealing face of one of a pair of sliding parts that slide against each other, extremely shallow grooves constituting a Rayleigh step mechanism are provided in a manner facing the high-pressure fluid side of the sealing face, while deep fluid-introduction grooves for introducing the high-pressure fluid are provided on the upstream side of the extremely shallow grooves in a manner continuing to the high-pressure fluid side.

Abstract: A ball joint dust cover is provided. The ball joint dust cover is made of a rubbery elastic material and is provided with a small diameter opening part with which a hard ring is formed. The hard ring is sandwiched by a retainer having a three-sided box shape. The retainer includes a plurality of gaskets contacting the hard ring.

Abstract: A wheel bearing has a seal device formed as a pack seal with an annular sealing plate and slinger. The sealing plate has a metal core and an integrally adhered sealing member. The sealing member has a base portion, side lip and radial lip. The base portion covers an inner circumferential surface of the metal core. The radial lip slidingly contacts the cylindrical portion of the slinger. A garter spring is mounted on the radial lip. A tightening force of the garter spring is set to 50% or more of a total tightening force of the radial lip. The tightening force of the radial lip without the garter spring is set to 3N or more.

Abstract: A brush seal includes a bristle part formed by multiple bristles such that the multiple bristles arranged in a direction of pressure difference between a high-pressure side and a low-pressure side are mutually fixed between a base end and a free end to form planar bristles, wherein these planar bristles are arranged continuously in layers in a circumferential direction to form a circular bristle part. Multiple dynamic-pressure generating grooves that generate dynamic pressure by turning and sliding relative to a rotational part are formed independently in the circumferential direction, on the sliding surface of the bristle part on the free end side, in a manner open to the high-pressure side.

Abstract: O-ring/back-up ring systems that are suitable for use in high pressure applications, including those of 70 MPa automotive hydrogen storage applications, to form a seal between first and second connector bodies. Such sealing systems comprise a back-up ring having a base portion and a flange portion, wherein such ring is configured to prevent extrusion of an O-ring into a gap existing between the back-up ring and a groove into which the back-up ring and O-ring are disposed. High pressure gas storage systems comprising such sealing systems, and methods of sealing a connection in a high pressure hydrogen storage system using such sealing systems.

Abstract: An elastomeric polymeric seal 10 includes a sealing surface 21 and an adjacent fluid repelling surface 20. The fluid repelling surface 20 is hydrophobic or superhydrophobic and is of substantially greater surface area than sealing surface 21. During manufacture of a silicone wafer 27, sealing surface 21 engages the wafer 27 to seal against leakage of electroplate solution fluid. The repelling surface 20 directs the electroplate solution fluid away from the sealing surface 21 during and after electroplating. The hydrophobic or superhydrophobic repelling surface includes a pattern of micro-pillars 51 and micro-channels between the pillars. The pillars are formed in the base material of the seal by laser ablation of the base material or by molding. Other seals 30 and 90 include a sealing surface and an adjacent hydrophobic or superhydrophobic repelling or stiction reduction surface. A fluidic device 95 includes plates 96 and 97 with micro-channels and micro-pillars.

Abstract: A permanently lubricated film gasket for providing a fluid-tight seal between a corrugated pipe and a smooth annular section of an outer pipe or section when the corrugated pipe and the outer pipe or section are in a relative surrounded and surrounding relationship. A first portion of the gasket is shaped to fit within a groove or recess of the corrugated pipe. A second portion of the gasket extends from the first portion. The second portion is at least partially comprised of permanently lubricated film for facilitating in the connection of the pipes along a single direction.

Abstract: A seal assembly for separating a relatively high pressure area from a relatively low pressure area includes a first seal carrier having a circumferential body that has a land thereon and a seal. The seal has a circumferential body located within the first seal carrier, the seal having a first surface for sealing against the first land and a second surface and wherein one of the first surface or the first land has an unmachined wear coating that resists fretting and vibration.

Abstract: An energy saving seal seals between a bore and a shaft for separating an oil side from an air side of the seal. The seal includes an annular mounting portion having a bellows portion extending axially and radially inward from the mounting portion. An axial leg extends axially from the bellows portion toward the air side. A lay down sealing lip extends radially inward and axially toward the oil side from an end of the axial leg. The sealing lip includes a bead on an outer surface. A dust lip extends from the end of the axial leg in a direction opposite the lay down sealing lip. When the oil side is under a negative pressure, the axial leg flexes inward in response to the negative pressure and engages the bead to provide a self-contact feature that holds the lay down sealing lip in engagement with the shaft.

Abstract: A seal includes an annular mounting portion having a bellows portion extending axially and radially inward from the mounting portion. An axial leg extends axially from the bellows portion. A lay down sealing lip extends radially inward and axially from an end of the axial leg. A dust lip extends from the end of the axial leg in a direction opposite the lay down sealing lip. When the oil side is under negative pressure and when the lay down sealing lip begins to lift radially off the shaft there is a counterbalance force applied to the axial leg through the bellows geometry which maintains the lay down sealing lip in contact with the shaft. In addition, the seal is designed to be flexible enough that the oil side vacuum “rocks” the seal bringing the dust lip into contact with the shaft and blocking airflow.

Abstract: A system for cooling packing material utilized for sealing a shaft moving therethrough is described. The packing material held in place by at least one packing cup, wherein a coolant is directed axially through a significant volume of each packing cup close to the packing material. The present system finds use for compressors and pumps where pressure requirements of the fluids acted upon demand the use of packing materials in close contact with the moving shafts.

Abstract: A method of manufacturing an ultrasonic surgical instrument includes providing an ultrasonic waveguide comprising a blade implement at a distal end thereof, providing an ultrasonic transducer assembly, and providing a hollow sheath sized to receive the ultrasonic blade. The method further includes identifying a motionless node on the ultrasonic waveguide when the ultrasonic transducer assembly is driven at maximum current at a resonant frequency of the ultrasonic transducer assembly, and installing a seal on the waveguide at the motionless node, wherein the seal has an annular groove therein. Installing the seal comprises positioning a first annular seal portion at the motionless node on the waveguide such that a first axial seal portion and a second axial seal portion extend axially in opposite axial directions beyond the first annular seal portion. When compressed, the seal maintains a contact with the waveguide that is less than a contact with the hollow sheath.

Abstract: A split mechanical end face seal assembly has a split gland plate assembly, a split mating seal ring assembly, a split primary seal ring assembly and a split biasing assembly. The segmented mating seal ring is axially and radially supported on the segmented mating ring adapter by resilient connector strips as pre-assembled sub-assemblies and the resilient connector strips axially non-rigidly support the mating seal ring within said mating ring adapter assembly. An axially movable primary sealing ring assembly includes a segmented primary seal ring. The biasing assembly is pre-assembled into the gland plate assembly and urges the primary seal ring into sealing relation with the mating seal seal ring. A method of installation includes resilient axial and radial support of the mating seal ring segments in mating ring adapter segments by the resilient connector strip for installation as a pre-assembled sub-assembly.

Abstract: A gasket assembly and method of construction is provided. The assembly includes a carrier body having opposite planar surfaces with at least one media-conveying opening extending through the planar surfaces with at least one through opening spaced radially from the at least one media-conveying opening. Further, the carrier body has at least one projection formed of the material of the carrier body. The at least one projection extends from the at least one through opening outwardly from at least one of the planar surfaces. The assembly further includes an elastomeric material encapsulating the projection.