Abstract: An air seal system for a rotor blade assembly of a gas turbine engine includes a substrate. An optional ceramic interlayer may be disposed on an optional bond coat deposited on the substrate. An erosion resistant thermal barrier coating (E-TBC) layer is disposed on the ceramic interlayer (if present) or on the bond coat, or on the substrate. An abradable layer is disposed on the erosion resistant thermal barrier coating (E-TBC) layer.

Abstract: An adjustment mechanism (85) for a seal assembly (80) for a pump drive shaft (52) of a pump, the pump shaft (52) mounted for rotation about a rotation axis. The seal assembly (80) comprises a rotating seal (81) mounted for rotation with the drive shaft (52) about the rotation axis and a static seal (84) adjacent the rotating seal (81) and axially moveable relative thereto. The adjustment mechanism (85) comprises an adjustment member (87) which is axially moveable so as to cause axial movement of the static seal (84) relative to the rotating seal (81). The mechanism further includes an actuator (88) and a transmission (93) for transmitting a motive force from the actuator to the adjustment member as a result of activation of the actuator. The transmission (93) is operatively connected to the adjustment member (87) at two spaced apart couplings (98) whereby activation of the actuator causes simultaneous transmission of the motive force to the two spaced apart couplings.

Abstract: A face seal assembly and rotating assembly for a track machine are disclosed. The face seal assembly includes a first seal ring, an annular housing, a second seal ring, and a bias member. The first seal ring is fixed to a rotating part for rotation about an axis. The first seal ring includes a seal face and a radially outer surface press-fittingly confronting an annular bore in the rotating part. The annular housing is spaced axially inward from the first seal ring and rotationally fixed. The annular housing includes an axially inner surface and a radially inner surface. The second seal ring is disposed axially between the first seal ring and the annular housing. The second seal ring includes a seal face confronting the seal face of the first seal ring. The bias member is compressed between the annular housing and the second seal ring.

Abstract: A shaft seal arrangement with a shaft extending along an axis and with a stator, wherein a rotating sealing ring is arranged on the shaft and a static sealing ring is arranged on the stator, wherein the rotating sealing ring has a rotating sealing surface and the stationary sealing ring has a stationary sealing surface, wherein these sealing surfaces are arranged in such a way that they are located opposite one another in a sealing manner in a substantially radial sealing plane, wherein the shaft seal arrangement forms a contactless gas seal, wherein at least one of the sealing surfaces has a nonrotationally symmetrical surface contouring the rotating sealing ring is provided.

Abstract: The present inventive concept relates to a sealing device (1) for garments to sealingly connect an annular layer (3) and a wearable layer (5) to the sealing device (1). The sealing device (1) comprises an annular base (10) having an inner annular wall portion (12) and an outer annular wall portion (14), a recess (30) at least partly defined by the inner annular wall portion (12) and the outer annular wall portion (14), and an annular sealing surface (40) for circumferentially and sealingly connecting the annular layer (3) to the annular base (10). The sealing device (1) further comprises an annular sealing body (60) adapted to be locked into the recess (30) to circumferentially and sealingly connect the wearable layer (5) between the annular base (10) and the annular sealing body (60).

Abstract: A gasket for sealing a compartment between rotating and fixed members. The gasket has a first ring adapted to be connected to a rotating member; a second ring adapted to be connected to a fixed member; a first annular elastomeric element carried by the first ring and defining at least a first annular sealing lip cooperating with the second ring to counter the passage of external contaminants inside the compartment; a second annular elastomeric element carried by the second ring and defining at least a second annular sealing lip cooperating with the first ring to counter the passage of lubricant to the outside; and an annular wiper member connected to the first elastomeric element and having a wiping portion cooperating with the second fixing portion of the second support ring to counter the passage of external contaminants from the second ambient to the first sealing lip.

Abstract: A seal for an axle assembly can include a support, sealant layer, lip, and flange. The support can include an outer member and a wall. The outer member can extend axially. The wall can extend radially inward from a first end of the outer member. The sealant layer can coat an outer surface of the outer member to form a fluid-tight seal between the outer surface of the outer member and a bore of the housing. The lip can extend radially inward of the wall. The lip can form a fluid-tight seal between the wall and an outer surface of the shaft. The flange can extend radially outward of a first end of the outer member while not forming a fluid-tight seal with the interior bore. The flange and the outer member can define a channel axially between the first end of the outer member and the sealant layer.

Abstract: The invention relates to a mechanical seal arrangement comprising a rotating slide ring (2) and a stationary slide ring (3) which define a sealing gap (4) between them and a bandage (15) which is arranged on the outer surface of at least one of the slide rings, the slide ring (2) on which the bandage (15) is arranged comprising a step (25), which extends completely on the outer circumferential face in the circumferential direction and has a contact face (26), and an end face (17) of the bandage (15) lying against the contact face (26) of the step (25).

Abstract: Disclosed is a shaft sealing device including: a housing in which an annular recessed portion is formed and which is fixed to a stator; a sealing body, a radially outer portion of which is accommodated by the annular recessed portion; and a high pressure-side sealing plate that is disposed along the sealing body in a high pressure region. An inflow groove is formed in any member of the housing, the high pressure-side sealing plate, and the sealing body such that a fluid flows through the sealing body from a low pressure region during a non-normal operation in which pressure in the high pressure region is higher than pressure in the high pressure region. A communication path is formed in the housing such that the inflow groove and a space in the high pressure region communicate with each other via the communication path.

Abstract: A gasket assembly is provided including a first gasket layer and a second gasket layer having an outboard region and an inboard edge circumscribing an aperture. The gasket layers present a sealing bead between the inboard edge and the outboard region. A stopper layer disposed between the gasket layers is attached to the outboard region of the first gasket layer at an attachment joint and extends from the attachment joint to the inboard edge. A coating of sealing material is applied between the first gasket layer and the stopper layer. The coating extends from the attachment joint to the inboard edge of the first gasket layer to present a contact region immediately surrounding the aperture where the first gasket layer and the stopper layer are in direct continuous contact with the coating thereby preventing gas leakage and metal to metal contact between the first gasket layer and the stopper layer.

Abstract: For sealing the steering column opening in a body panel located between passenger cell and engine compartment, an assembly consists of at least one steering column mounting bearing, at least one body panel flange and at least one elastomer suspension, via which the steering column mounting bearing is suspended from the body panel flange. The body panel flange is expanded housing-like into at least one series-specifically designed reducing piece, the elastomer suspension being at least partially embodied as a series-independent universal suspension. At least two damping chambers located between the reducing piece and the steering column mounting bearing are formed with the elastomer suspension.

Abstract: There is described a seal assembly for a gas turbine engine comprising: a first seal having a sealing passage which defines a flow path trajectory for leakage air, the first seal for partitioning a first pressure area to a lower pressure area; a second seal located along the line of the flow path trajectory of the first seal, the second seal for partitioning a second pressure area and the lower pressure area; a deflection member located between the first seal and second seal, and in the trajectory of the flow path from the first seal.

Abstract: The present specification relates to thermally expandable formulations comprising (a) at least one peroxidically crosslinkable binary copolymer comprising at least one monomer unit selected from vinyl acetate, (meth)acrylic acids and derivatives thereof, the binary copolymer having a melt flow index of not more than 3 g/10 min, as determined in accordance with DIN EN ISO 1133 and with a test load of 2.16 kg and a test temperature of 190° C., (b) at least one peroxide, (c) at least one chemical blowing agent, and (d) at least one polymer based on one or more diene monomers, and (e) at least one terpolymer based on at least one first monomer selected from singly or multiply unsaturated hydrocarbons, and on at least one second monomer selected from (meth)acrylic acids and derivatives thereof. The thermally expandable formulations exhibit a high level of persistence during the heating of the material as required for curing/expansion.

Abstract: An ultrahigh-pressure sealing device improves sealing performance under ultrahigh pressures and improves durability. The ultrahigh-pressure sealing device is arranged to seal an annular space between an outer member and an inner member and separates between a high-pressure chamber and a low-pressure chamber. A bottom ring includes a first inner periphery, a first large-diameter outer periphery, a first small-diameter outer periphery, and a first middle outer periphery. A back-up ring includes a second inner periphery, a second engagement portion, and a second outer periphery. A packing ring includes a third low-pressure-chamber end, a third inner periphery, a third large-diameter outer periphery, a third the small-diameter outer periphery, and a third middle outer periphery. An elastic ring includes a fourth inner periphery, a fourth the engagement portion, and a fourth outer periphery.

Abstract: A sealing member for a machine may include an elastomeric body configured to fit at least partially into a recess defined in at least one of two sealing surfaces of two mating parts of the machine. The elastomeric body may include a visible indicator portion extending out from between the two mating parts. The elastomeric body may further include an elastomeric compound, and at least one of a thermochromic dye and a piezochromic dye mixed into the elastomeric compound, wherein the thermochromic dye is adapted to change color upon exposure of the elastomeric body to a temperature above a threshold temperature, and the piezochromic dye is adapted to change color upon exposure of the elastomeric body to a pressure above a threshold pressure.

Abstract: A mechanical seal (100) is configured such that an annular sealed space (S1) is formed by a first bellows (141), a second bellows (151), and members respectively provided on both end sides of the first bellows (141) and the second bellows (151), and that the first bellows (141) and the second bellows (151) expand and contract in a central axial direction of a rotating shaft (200) in accordance with fluid pressure inside the sealed space (S1). The first bellows (141) and the second bellows (151) are arranged at positions distant to each other in the central axial direction, and are arranged such that a part of the first bellows (141) on a radially inward side and a part of the second bellows (151) on a radially outward side overlap when viewed in the central axial direction.

Abstract: Seal sections for electric submersible pumps. Seal sections are described which include a combination of a barrier fluid to protect a seal from unfavorable ingress and control of differential pressure across the face of the seal.

Abstract: A radial lead seal assembly of a generator and a method for sealing a radial chamber from an axial chamber of a generator using a radial lead seal assembly are presented. The radial lead seal assembly includes sealing elements disposed around a radial lead to seal an annular space between the radial lead and the radial chamber and thereby seal the axial chamber fluidically from the radial chamber. Conical springs are disposed annularly around the radial lead between the sealing elements and a junction between the radial lead and the axial lead. The radial lead seal assembly includes a nut for exerting a compressive load on the radial lead seal assembly in a radially inward direction such that the conical springs are only partially compressed.

Abstract: Method and system of a flange seal ring. At least some of the illustrative embodiments are systems comprising a metallic ring and a plurality of cogs. The metallic ring comprises a central bore that defines an internal diameter, a first sealing face that defines a first plane, a second sealing face that defines a second plane, a first groove in the first sealing face, and a second groove in the second sealing face. The plurality of cogs couple to the metallic ring, each cog extends through the first plane, and the plurality of cogs positioned one each at a plurality of radial positions around the metallic ring. At least one of the plurality of cogs configured to have an adjustable position relative to the central bore, and the cogs configured to align the central bore to a corresponding bore of a flange.

Abstract: Apparatus are provided for a device with improved heat resistance. The device includes a body and an encasing layer disposed substantially entirely around the body. The encasing layer includes a fabric layer and a coating. The fabric layer has a first end and a second end coupled together about the perimeter of the body to enclose the body, and the fabric layer includes an exterior surface. The coating is disposed on the exterior surface of the fabric layer, and the coating forms a barrier for the fabric layer.