Abstract: A face seal assembly includes a rotationally fixed first component at least partially defining an interior chamber containing a volume of lubricant. The first component includes a rotationally fixed seal element. A rotatable second component is rotatable about an axis of rotation relative to the first component. The second component includes a second component body extending along the axis of rotation from the interior chamber to outside of the interior chamber. An axially facing component surface is located in the interior chamber and is configured to engage with an axially-facing element surface of the seal element to define a seal interface of the face seal. A plurality of fins extend radially outwardly from the second component body in the chamber interior, such that the plurality of fins create a centrifugal force on the volume of lubricant to urge the volume of lubricant away from the seal interface.

Abstract: There is provided a gasket comprising a rigid core (2) defining an aperture (4). The core has a serrated profile (8) on at least one of its upper and lower outer surfaces and the core is divided into upper and lower parts (2a, 2b) each having a respective outer surface (6a, 6b) and also an inner surface (42, 44) opposite the outer surface. The gasket also includes an optional sealing facing (12, 14) on the at least one outer serrated profile surface, wherein an inner insulating layer (40) is located between the said upper and lower parts so that it is operable to substantially reduce electrical conduction between the said upper and lower parts. There is described a method of production of the gasket and use of the gasket.

Abstract: There is provided a gasket (100) for sealing two mating surfaces, the gasket comprising: a rigid non-metal core (102) defining an aperture (104), the core comprising a first face (106) extending away from the aperture and a second face (122) opposite the first face; and at least one sealing layer (108); wherein the first face comprises: a substantially flat inner region (112) defining a plane; and a serrated region (110) comprising a plurality of serrations (118) that extend substantially perpendicular to the plane, wherein the substantially flat inner region is located between the aperture and the serrated region, wherein the serrations are recessed in the first face such that they do not cross the plane, wherein the at least one sealing layer overlays at least part of the serrated region of the first face.

Abstract: A piston seal assembly for a gas turbine engine includes a seal formed of a nickel-based superalloy; a component in contact with the seal and defining a seal-counterface; and a coating on the seal at the seal-counterface, wherein the coating is a nanostructured, self-lubricating coating material.

Abstract: A gas processing system includes a vessel defining a cavity for processing a gas. The vessel includes a process gas inlet for accepting process gas at an input pressure, and a process gas outlet for discharging process gas at an output pressure. The gas processing system further includes a shaft coupled to the vessel and a multistage sealing system comprising multiple seals spaced along the shaft. The shaft is configured to transfer mechanical energy to or from gas in the vessel. Each adjacent pair of seals defines a corresponding pressure space therebetween. One of the pressure spaces is an equalizing pressure space in hydraulic communication with the process gas inlet via a flow line, such that in operation, pressure in the equalizing pressure space is maintained at an equalized pressure with respect to a pressure in the process gas inlet.

Abstract: A pair of sliding members sliding relative to each other at sliding faces is configured such that at least one of the sliding faces (S) includes a negative pressure generation mechanism (41) surrounded by a land portion and a branched portion (42) arranged in the sliding face S and branched from the negative pressure generation mechanism (41). The sliding members can be formed compact and is applicable to equipment for rotation in both directions, while sliding torque reduction and sealing function improvement can be realized.

Abstract: A method can be used for producing a plurality of sealing profiles for an edge joint of drywall. The method involves providing a first web of sealing material, and applying a plurality of adhesive strips to the first web, where adjacent adhesive strips are at a distance from one another corresponding to at least 50% of the height of a sealing profile. The method then involves providing a second web, and merging and joining the first web to the second web via the adhesive strips to form a multilayer web. The method further involves introducing a plurality of cuts in a particular way at a distance from all adhesive strips to form a number of sealing profiles. A corresponding sealing profile is produced in this way.

Abstract: A seal is disclosed having a pair of side walls, a base extending between the side walls, a first concave surface extending inwardly from one of the side walls, a second concave surface extending inwardly from the other side wall, and a convex surface extending between the first concave and second concave surface to form a rounded peak having an apex. The seal has a seal width defined between the seal side walls, and a seal height defined between the apex of the rounded peak and the base. The width is at least twice the height of the seal. The seal is located in a channel recess of a first component opposite a second component to seal between the first component and the second component, the channel recess having a floor and a height defined between the floor and a surface of the first component in which the channel recess is formed.

Abstract: The present disclosure relates to a rear view device for a vehicle with one or more gaskets preventing water or other contaminants from entering the device between components, while allowing the components to move in relation to one another. In embodiments, the rear view device comprises a base adapted to be mounted to a side of the vehicle, a head for supporting at least one means for providing a rearward field of view disposed at a second attachment end of the base, an actuator connected to the second end of the base, and a shroud attached to the actuator, wherein the actuator may rotate the head in relation to the base. In embodiment, a foot gasket is attached to a foot of the base and includes a first lip portion that extends towards the shroud in a vertical direction, and a second soft lip portion that contacts the shroud in a horizontal direction.

Abstract: The disclosure provides a sealing system applicable for an ocean power generation device, which includes at least one first seal and a water leakage protection device. The water leakage protection device is located at a side of at least one first seal away from seawater, and includes a sealed water storage tank and a drain pipe. The sealed water storage tank collects and stores seawater leaked from the at least one first seal. One end of the drain pipe is communicated with the sealed water storage tank, and the seawater stored in the sealed water storage tank is discharged through the drain pipe.

Abstract: A valve device includes: a housing; a valve element; a rotatable shaft that rotates the valve element; a seal member that is slidably in close contact with an outer peripheral surface of the rotatable shaft to limit penetration of gas through a gap between the rotatable shaft and the housing; and a mounting ring that is shaped in a ring form and mounts the seal member to the housing. The mounting ring has: a ring portion, a one-side plate portion and an opposite-side plate portion which are formed from a single continuous plate material. The one-side plate portion and the opposite-side plate portion clamp the seal member therebetween and are joined together through the ring portion.

Abstract: Disclosed is a hermetically sealed assembly for precompression of a martinsetic metal for use in negative pressure energy transfer systems, and method of making same. The assembly comprising a martinsetic metal disposed between and in contact with flanged sapphire windows, the flanges defining an open area therebetween to accommodate expansion and contraction of the martinsetic metal. Hermetic sealing means include a bellows element, which can comprise a convoluted cross section, at the periphery of the assembly to enable operation over temperature ranges from ambient to cryogenic without loss of integrity or leakage.

Abstract: A method for assembling a seal cartridge and a seal cartridge, wherein the seal cartridge includes a set of sealing components configured for being removably assembled to each other so as to form the seal cartridge and wherein at least one of said sealing components is configured for being secured to another sealing component and/or to a shaft casing by a tenon and mortise joint system.

Abstract: Seal assemblies for sealing between a stationary component and a rotating component include a sealing member having a sealing face with an outer diameter sealing face and an inner diameter sealing face. An annular channel is defined in the sealing face between the outer diameter sealing face and an inner diameter sealing face and the sealing member is attached to the stationary component. A rotating mating ring is attached to the rotating component and includes a rotating sealing face and at least one ejection hole extending through the rotating mating ring from the rotating sealing face at an inlet end and a radially outward outlet end.

Abstract: Provided is a sliding component capable of reliably generating a negative pressure in a shallow groove regardless of a relative rotation speed of the other sliding component. In an annular sliding component disposed at a relatively rotating position of a rotating machine and sliding relative to the other sliding component, a sliding surface of the sliding component is provided with a shallow groove extending in a circumferential direction and generating a negative pressure and a deep groove collecting a sealing target fluid in the shallow groove and deeper than the shallow groove. The shallow groove has a terminating end portion in which a cross-sectional are of a flow path thereof becomes narrow toward the deep groove.

Abstract: A fluid processing machine that operates on a process fluid may include a frame that structurally supports at least a portion of the fluid processing machine and a shaft that operatively rotates about an axis and relative to the frame. The shaft may include a projection in a radial direction relative to the axis that is operationally contacted by a sealing armature that has an axial degree of freedom relative to the axis. Additionally, the fluid processing machine may include a dynamic rotational seal between the projection and the sealing armature and a dynamic axial seal between the sealing armature and the frame. The dynamic axial seal may include one or more metallic seals that seal between the sealing armature and the frame circumferentially about the axis.

Abstract: A coupling device attaches a sealing device to a panel. The sealing device seals a gap between the panel and a rotational shaft located in a shaft hole provided in the panel. The coupling device includes: a supporting wall part formed with a through hole into which the sealing device is to be inserted; multiple sealing-device hooks located on a first surface side of the supporting wall part and located around the through hole, the sealing-device hooks for being hooked on the sealing device from the outside; and multiple panel hooks located on a second surface side of the supporting wall part and located around the through hole, the panel hooks for being inserted into the shaft hole of the panel and to be hooked on a periphery of the shaft hole of the panel from the inside.

Abstract: A seal assembly is for sealing between an outer member and an inner member, one of which is rotatable about a central axis. An outer annular case is coupled with the outer member and an inner annular case is disposed within and spaced radially inwardly from the outer case. An annular sealing member is disposed within and coupled with the inner case, the sealing member having a centerline coaxial with the central axis and a sealing lip or lips engaged with the inner member. An annular elastomeric coupler has a first axial end attached to the outer case and a second axial end attached to the inner case. The elastomeric coupler is radially deflectable such that the outer case or inner case is radially displaceable relative to the other one of the two cases while the centerline of the sealing member remains coaxial with the central axis.

Abstract: A mechanical seal of the cartridge type. A rotary subassembly including a sleeve, the sleeve packed against and adapted to be in sealing disposition with a pump shaft of a pump; a stationary subassembly for attachment to a stuffing box of the pump, the stationary subassembly including a gland, wherein the gland has a front face and back face; and, a register defined within the gland front face, the register being an opening shaped to fit over a raised face of the stuffing box, thereby limiting side loading of the seal. In addition, a composite setting piece press-fitted into a bore between the bushing section and the drive collar, thereby allowing the seal to be preset in lieu of a screw or clip.

Abstract: A strain wave gearing is provided with a lubricant sealing structure that prevents a lubricant from leaking to the outside through a gap between a hollow input shaft and an end plate. The lubricant sealing structure is provided with a labyrinth seal that seals the gap. The labyrinth seal is configured by a plurality of gap portions defined by an oil-repellent surface in which fine grooves are formed in a prescribed groove array pattern. The oil-repellent surface is also formed at an outer peripheral surface portion on an upstream side of the labyrinth seal. Leakage of a lubricant oil to outside of the device can be reliably prevented through the oil-repellent effect of the oil-repellent surface at the upstream side, the sealing effect of the labyrinth seal, and the oil-repellent effect from the oil-repellent surface of the labyrinth seal.