Abstract: A device for sealing an actuator includes a drive shaft and an elongated body, which move, relatively to each other, along their longitudinal axis, covered by a sleeve, which covers at least partially both the elongated body and the drive shaft, the sleeve having a first portion conformed with the bellows and a second portion having the shape like the elongated body so that it may be fitted on it and blocked at its end, the bellows portion being positioned in correspondence of the shaft and locked on it at its end so that the sleeve is integral with the shaft.

Abstract: A gage tool (700) for inspecting tolerances of a gas turbine engine seal plate (430) includes a base plate (710) arid a top plate (720). The base plate (710) includes abase opening (712) and a slot (711) with an annular shape sized to receive a seal plate (430). The top plate (720) Includes a top opening (723). The base opening (712) and top opening (723) each provide access to a portion of a seal plate (430) within the gage tool (700). The gage tool (700) also includes a first gage (750) with a probe tip for measuring a variation in an outer interlacing surface (433) of a seal plate (430) and a seal slide gage (740) for measuring a force required to rotate Ore seal plate (430) within the gage tool.

Abstract: A seal assembly between a rotor and a stator is disclosed. In one embodiment, the seal assembly includes: a rotor; a stator positioned around the rotor; and a plurality of seal leaves positioned between the rotor and the stator, the plurality of seal leaves circumferentially stacked around the rotor to define a seal ring between the rotor and the stator, wherein gaps between adjacent seal leaves are partially filled, such that contact faces and residual gaps are between adjacent seal leaves, wherein the contact faces generate friction to dampen vibrations during operation. Such damping effects still allow the compliant motion of the seal leaves with minimal leaf vibration. Also, thicker and more resilient leaves may be applied with reduced leakage through the root gaps.

Abstract: A roller bearing assembly includes at least one roller bearing having an outer ring, an inner ring, and roller bodies disposed therebetween, as well as a radial shaft seal ring having a support ring and a seal lip. At least one end side of the outer ring includes a receptacle for retaining the support ring. The support ring extends axially in an outwardly projecting manner beyond the end side of the outer ring and up to an outer circumferential surface of the inner ring. The seal lip connected with the support ring sealingly abuts on the outer circumferential surface of the inner ring at a position that is axially internal of the end side of the outer ring.

Abstract: Two kinds of side seals are assembled by a seal member, a holder plate, and a cover. A base of the seal member is formed in a symmetrical shape with respect to a center line of a thickness direction. The seal member includes recesses formed in both faces of the base in the thickness direction and fitted with a protrusion of the holder plate. A lip of the seal member is inclined in a direction from a first face toward a second face in the thickness direction.

Abstract: A seal assembly for sealing at least one negative or positive pressure zone which adjoins a surface which is perforated and moves in a movement direction in a machine for making paper, tissue or cardboard, has at least one sealing element which lies opposite the moving surface and is arranged in a receptacle which can be moved to change the format of the negative or positive pressure zone. In order to simplify the adjustability of the receptacle in order to position the sealing element, there is a signal transmitter which is connected directly or indirectly to the sealing element and the signal of which can be received on that side of the moving surface which faces away from the sealing element.

Abstract: A radial shaft seal for a radial shaft is formed with a casing having an exterior-facing surface opposite from an interior-facing surface, and a sleeve positioned radially inwardly of the casing that rotates with respect to the casing. A sealing ring is connected to the casing, and has an extending portion that interacts with the sleeve to form a labyrinth seal barrier.

Abstract: A protective cover including a bellows portion wherein a plurality of valleys and peaks are arranged alternately. The valleys include a plurality of large valleys and a plurality of intermediate valleys whose inside and outside diameter dimensions at bottoms are greater than those of the large valleys, and the large valleys and the intermediate valleys are arranged alternately. Small valleys whose inside and outside diameter dimensions at bottoms are greater than those of the intermediate valleys are respectively arranged between the large valleys and the intermediate valleys. The peaks are respectively arranged between the large valleys and the small valleys as well as between the intermediate valleys and the small valleys, and apexes of the peaks have a same outside diameter dimension as one another. The apexes of the peaks are made thinner than the bottoms of the large valleys.

Abstract: A sealing unit longitudinally comprises first and second sealing sub-units disposed around first and second portions of a driveshaft of a marine propulsion system of a watercraft. The first sealing sub-unit is sealingly connected to a front wall of the hull and the engine casing. The second sealing sub-unit is sealingly connected to the driveshaft and a crankshaft. The second sealing sub-unit is disposed at least partially inside the first sealing sub-unit. An inside of the first sealing sub-unit is in fluid communication with a water intake ramp. An inside of the second sealing sub-unit is in fluid communication with an interior of an engine. The first sealing sub-unit prevents fluid communication between the water intake ramp and a portion of an inside of the hull. The second sealing sub-unit prevents fluid communication between the engine, the inside of the hull, and the water intake ramp.

Abstract: A waterproof rotary mechanism is provided. The mechanism includes a stationary part, a rotary part having a receiver arranged above the stationary part and rotatably supported by the stationary part on a vertical axis as a rotating center thereof, and a clearance forming part fixed to the stationary part and arranged between the stationary part and the receiver. A clearance for suppressing water from entering therein and is formed between the receiver and the clearance forming part.

Abstract: A sealing device for sealing at least one underpressure or overpressure zone adjoining a surface which is moved in a movement direction in a paper, tissue or cardboard machine, includes at least one sealing element which is located opposite the moved surface and has at least one feed channel for a lubricant. In order to considerably decrease the wear of a sealing element uniformly over the entire length thereof, the at least one feed channel ends in a supply channel, which is arranged at the beginning of the sealing element in the movement direction.

Abstract: The present invention refers to a seal ring for a mechanical seal, comprising: a base body (2) with a diamond layer (3) which is applied to the base body (2) and configured as a sliding surface, wherein the diamond layer (3) has a thickness (D) which is less than or equal to 4 ?m, particularly less than or equal to 3 ?m, particularly less than or equal to 2 ?m, particularly preferably about 1 ?m, and wherein the base body (2) is without fissures or only comprises fissures that have a maximum longitudinal extension (L) on a surface of the base body (2) or in the base body (2) that is less than or equal to 5 ?m.

Abstract: A seal member which is used in a seal part comprising a molded rubber article produced by vulcanizing a rubber composition comprising, a hydrogenated nitrile rubber (A), carbon black (B), and carbon black (C) and/or carbon fiber (D), wherein carbon black (B) has a DBP oil absorption of 250 to 450 mL/100 g, carbon black (C) has a DBP oil absorption of 200 mL/100 g or less, and carbon fiber (D) has an average fiber length of 0.05 to 2 mm and an average fiber diameter of 5 to 30 ?m; and wherein, based on 100 parts by mass of the hydrogenated nitrile rubber (A), the amount of carbon black (B) is 5 to 15 parts by mass, the total amount of carbon black (C) and/or carbon fiber (D) is 3 to 35 parts by mass, and the total content of the fillers is 40 parts by mass or less.

Abstract: The sealing performance by a side seal is improved by changing the sealing function of the side seal for a linear guide apparatus which includes, as constituting components, a seal member, a holder plate that holds the seal member, and a cover (a scraper) depending on its application of the side seal. Plural types of the seal members (1A to 1B) which have a difference in at least any one of the inclination, the material, the thickness, and the tip shape of lips (11a to 11f) are prepared as the seal members. Multiple numbers of the seal members among those seal members are appropriately selected, the same number of the covers and the same number of the holder plates are combined together to assemble the side seal.

Abstract: A compressor having a stator vane assembly having an inner ring and a seal carrier secured thereto, the seal carrier having two opposite seal carrier end faces and the inner ring having two inner ring end faces which face said seal carrier end faces and are received between said seal carrier end faces with an axial gap therebetween, at least one clamping element bearing axially with a first clamping element end face against the inner ring and with a second clamping element end face against the seal carrier and being axially resiliently clamped between the inner ring and the seal carrier. A compressor with a clamping element for radial clamping is also provided.

Abstract: A 3-D geometric separation of old engine compression-ignition-expansion chamber in compression-ignition chamber and expansion chamber with a parametric delay between ignition and expansion ( and excluding the intake valves and exhaust valves) what to permit a symmetric configuration for a totally rotary engine and a special arrangements(as is revealed in drawings and explained in description) of mechanical and electrical components acting resonant with thermodynamic processes against of internal and external absorption's processes using maximal the caloric energy of a combustible and creating a cyclic thermodynamic parametric resonant loop, process maintained from increasing or decreasing the dynamic pressure and thermo gradient and mechanically mirrored in a increasing or decreasing engine RPM or it's new parameter, the ignition timing delay.

Abstract: According to the present invention, two kinds of side seals (203A and 203B) are assembled by a seal member (1), a holder plate (2), and a cover (3). A base (12) of the seal member (1) is formed in a symmetrical shape with respect to a center line of a thickness direction. The seal member (1) includes recesses (12a) formed in both faces of the base (12) in the thickness direction and fitted with a protrusion (21) of the holder plate (2). A lip (11) of the seal member (1) is inclined in a direction from a first face (13) toward a second face (14) in the thickness direction.

Abstract: A seal for a pump includes a seal housing configured to be received in a housing of the pump and a seal assembly received in the seal housing. The seal further includes a seal holder receiving at least a portion of the seal assembly, the seal holder being configured to rotate with respect to the seal housing. The seal also includes a guide coupled to the seal housing and retaining the seal holder, such that the seal holder rotates with respect to the seal housing, wherein during operation of the pump, the seal holder and a portion of the seal assembly rotate. A pump includes the pump seal, and a method for refurbishing a pump seal includes removing and replacing at least a portion of a seal assembly of the pump seal, wherein refurbishing the pump seal does not require removing a pump shaft from the pump.

Abstract: A rotating flow diverter has a lubricated sealed bearing assembly for isolating bearing elements from wellbore fluids under pressure. The sealed bearing assembly is supported between an outer bearing housing and an axially rotatable quill. The bearing assembly further has bearing elements with a bearing lubricant under pressure and a seal assembly. The seal assembly has at least one sealing element which comprises a body, the body having an outer peripheral wall, an inner sealing surface having a plurality of sealing lips and an annular cavity, and a loading ring for compressionally fitting within the annular cavity to urge the sealing surface radially inwardly for sealing engagement with tubulars.

Abstract: A hybrid seal carrier for establishing a seal between a rotating component and a stationary component substantially surrounding the rotating component includes a first seal element held between forward and aft end plates and adapted to be seated within a first slot formed in the stationary component. A second seal element is seated within a second slot formed in one of the forward or aft end plate; wherein said first seal element comprises a plurality of bristles forming a brush seal; and said second seal element comprises at least one honeycomb seal.

Abstract: Dock leveler sealing systems are disclosed herein. In various embodiments, a dock leveler sealing system can include a bottom seal configured to be attached to an underside of a dock leveler deck and extend transversely thereto, and two side seals configured to be attached to opposite end portions of the bottom seal and extend forwardly therefrom. The side seals can be shaped and sized to effectively seal openings and/or gaps that may exist between the bottom seal, the deck lip, a shipping vehicle, a dock bumper, and/or the building floor.

Abstract: A seal for a turbo machine is provided. The seal includes a plurality of honeycomb cells, at least one circumferential groove within the plurality of honeycomb cells, and at least one swirl brake within the at least one groove.

Abstract: A sealing member for preventing leakage of powder from a rotating body, can prevent escape of powder under low load and with little yarn, which has excellent wear resistance. In the context of a sealing member (1) for preventing leakage of powder (6), a sealing member (1) made up of at least three or more types of woven yarn and formed from woven fabric comprising warp yarn (3a) and weft yarn (3c), the warp yarn (3a) in this sealing member (1) comprising at least two or more types of different yarn diameters (3g) and densities. This is a sealing member (1) for preventing leakage of powder (6) comprising formation of the sealing member (1) from fabric woven in a pattern (2b) of banded and striped appearance (4) having steps (5) due to the difference in diameters and difference in densities of these warp yarns (3a).

Abstract: Disclosed is a non-contacting seal arrangement, an electromechanical system having a non-contacting seal arrangement, and a process of fabricating a non-contacting seal arrangement. The non-contacting seal arrangement includes a shape-memory alloy portion, a non-contacting seal, and an ingress gap. The ingress gap is between the non-contacting seal and the shape-memory alloy portion, between a surface of an electromechanical system and the non-contacting seal, or between the surface of the electromechanical system and the shape-memory alloy. An increase in temperature expands the non-contacting seal and the shape-memory alloy portion substantially maintains the ingress gap. The electromechanical system includes a rotating component and a surface extending around at least a portion of the rotating component and forming the ingress gap. The process includes securing the shape-memory alloy portion, securing the non-contacting seal, and forming the ingress gap.

Abstract: Disc brake comprising an hydraulic actuator for clamping shoes guided by a caliper (14) and an annular seal (10) lodged with axial clearance (J) in a groove (28) of the actuator for ensuring fluid-tightness between the piston (16) and the cylinder of the actuator, characterized in that the groove (28) comprises a rib (40) for the axial locking of the seal (10).

Abstract: The invention relates to a device for sealing a gap between parts that are moved relative to one another, namely a fixing part, for fixing at least one elastic sealing element at an edge thereof, and a stop part along which another edge of at least one elastic sealing element runs, wherein the fixing part comprises, running along the gap, at least one groove in which are inserted one or more anchoring parts that engage through or around the sealing element and/or a retaining element that retains same.

Abstract: A seal for an air valve having a valve shaft rotatably carried in a bore formed in a body and a valve head carried by the valve shaft to control air flow through an air passage as the valve shaft is rotated. The seal may include a pair of spaced apart sealing members adapted to engage the body within the air passage to seal a junction between the valve and air passage. The seal may also include an intermediate member between and interconnecting the sealing members, where the intermediate member is flexible to permit movement of at least a portion of the sealing members toward each other and the intermediate member is also resilient to yieldably bias the sealing members away from each other at least when the sealing members are displaced toward each other.

Abstract: The invention relates to a method for producing sealing rings open to the outside or to the inside, which method comprises the steps of providing a tube, arranging the wall of the tube between at least one first roller that is parallel to the tube and has a first outside contour, and at least one second roller that is parallel to the tube and has a second outside contour; carrying out a relative movement of the at least one first roller and the at least one second roller towards each other; forming at least one sealing ring by a relative movement of the wall of the tube between the at least one first roller and the at least one second roller, wherein the cross-section of the at least one sealing ring is defined substantially by the space between the first and second outside contours; and severing the at least one sealing ring from the tube. The invention also relates to a device for carrying out the method and to a selling ring produced in said manner.

Abstract: Described are techniques for use with a sealing member forming a static seal or a dynamic seal at a surface thereof. The sealing member has at least the surface thereof formed from one of Vespel SCP 5000 or Vespel SCP 50094.

Abstract: A sealing member is obtained by molding a carbon fiber composite material (50) including a perfluoroelastomer (FFKM), and carbon nanofibers dispersed in the perfluoroelastomer, the carbon nanofibers having an average diameter of 0.4 to 230 nm. The perfluoroelastomer (FFKM) has a TR-10 value of ?10° C. or less as measured by a temperature-retraction test (TR test) in accordance with JIS K 6261. The carbon fiber composite material (50) in a crosslinked form has a peak temperature of a loss tangent (tandelta) of ?15° C. or less as measured by a dynamic viscoelasticity test.

Abstract: A seal (1) for a hydrostatic linear guide with a given adjustment direction (5), with a longitudinal seal section (7, 7?) extending essentially parallel to the adjustment direction (5), and with a transverse seal section (8, 8?) extending essentially transverse to the adjustment direction (5), wherein a first sealing lip (12) extends along the longitudinal seal section (7, 7?) and a second sealing lip (14) extends along the transverse seal section (8, 8?), and wherein the longitudinal seal section (7, 7?) and the transverse seal section (8, 8?) are connected to each other. Here it is provided that the first sealing lip (12) and the second sealing lip (14) merge into each other with a constant curvature (18). With such a seal (1), both a high degree of static oil tightness and also a high degree of dynamic oil tightness are achieved for a hydrostatic linear guide.

Abstract: A blade outer air seal for a gas turbine engine includes an arcuate first seal segment and an arcuate second seal segment. The first seal segment extends circumferentially to a first confronting face. The second seal segment extends circumferentially to a second confronting face. The first confronting face is positioned adjacent the second confronting face defining a gap therebetween. The confronting faces are radially non-parallel at a first engine operating point where each seal segment has a first temperature distribution profile and a first pressure distribution profile. The confronting faces are substantially radially parallel at a second engine operating point where each seal segment has a second temperature distribution profile and a second pressure distribution profile, which second profiles are different than the first profiles.

Abstract: An end seal for use in an image forming apparatus that provides increased contact pressure using projecting ribs at nip locations formed between an end of a roll and the ends of other components such as a doctor blade or flap seal and lower contact pressure along the end of the roll. Contact pressure may be varied by changing the thickness along portions of the projecting ribs or the use of transverse ribs between each of the projecting ribs and a second surface of the end seal.

Abstract: A dock leveler comprising a vehicle-engaging lip pivotally coupled to the vertically adjustable front edge of a deck includes a seal or series of seal segments that close one or more air gaps that exist in the area where the lip is hinged to the deck. Such gaps are particularly large when the lip hinge comprises a hinge pin that couples a series of lugs extending from underneath the deck to a series of lugs extending from the lip, wherein the lugs are spaced apart along the length of the hinge pin. The seal or seal segments could be above the deck, below the deck, or interposed between the adjoining edges of the deck and the lip. In some cases, the seal is provided by an air curtain or by a tube that is inflatable or hermetically sealed.

Abstract: Disclosed is a device for sealing an oven chamber of a coking plant, wherein a sealing frame can be placed against an inlet opening of the oven chamber during charging with a coal cake, from which, on oppositely disposed legs, sealing flaps protrude, which can be swiveled inward by the coal cake, the free end edges of the flaps grazing the coal cake.

Abstract: A seal structure includes: first and second members defining a hollow internal area of a fluid device; and a seal member fixed to the first member for sealing a gap between the first and second members. The seal member includes a sliding contact member being in sliding contact with a surface of the second member and formed of a resin. The second member includes a resin layer and a resin layer holding structure. The resin layer is formed by sliding the second member on the sliding contact member to transfer the resin forming the sliding contact member onto a sliding contact portion of the surface of the second member at which the second member comes into contact with the sliding contact member. The resin layer holding structure is a porous film formed by electric discharge surface treatment and holds the resin layer in the sliding contact portion.

Abstract: A chamber includes a sealed connection assembly sliding inside a translation plane, having two rigid parts, one of which comprises a groove. A planar seal and at least one O-ring seal are positioned in the groove, with the O-ring seal under the planar seal. An active surface of the planar seal, which projects above the groove, is compressed against a planar bearing surface of the other rigid part. The chamber can be used in a device for applying a plastic film onto a spectacle lens, in order to move the lens inside a variable-pressure space.

Abstract: The airtight magnetic seal, in a compact single body, made of two concentric sections, an inner section (1a) and an outer section (1b), unitized, which are able to rotate independently. These sections are engaged and squared to create a permanent contact-seal inside in combination with two labyrinth-seals type and associated drains at each end, and a pressure relief safety means, when the seal is embedded into an annulus in a rotary operational assembly.

Abstract: To prevent damage and malfunction, a sealing device for a universal joint has a metal ring (11) fitted on the outer peripheral surface of a shaft portion (111) of a cruciform spider (110) of the universal joint, and inner seal lips (12, 13) and an outer seal lip (14) made of a rubber-like elastic material and provided integrally with the metal ring (11), the inner seal lips (12, 13) slidably contact with the inner peripheral surface of an end of an outer ring (121) of a bearing (120) relatively rotatably supporting the shaft portion (111), the outer seal lip (14) slidably contact with a rising surface (112a) of a boss portion (112) of the cruciform spider (110), and the rising surface (112a) is a surface rising, outside the position where the metal ring (11) is fitted, in an outward radial direction from the shaft portion (111).

Abstract: According to an aspect of the present invention, there is provided a seal mechanism, including: a plate spring having a main body portion which has a curved shape and a pair of hook portions which are formed by bending the main body portion; and a seal member having a seal surface and a pair of projecting portions which are formed on an opposite side of the seal surface to catch the hook portions.

Abstract: A seal can have a middle portion, an upper lip, and a lower lip. The upper lip has a configuration with an upper end portion, an upper top portion, and an upper bottom portion with a void space defined in part by the upper end portion, the upper top portion, and the upper bottom portion. The lower lip can have a configuration with an upper end portion, a lower top portion, and an upper bottom portion with a void space defined in part by the lower end portion, the lower top portion, and the lower bottom portion. A middle portion connects the upper lip and the lower lip.

Abstract: An inner ring, an outer ring, a circular cone roller constituting a rolling elements arranged between the inner ring and the outer ring, a first seal member arranged at an opening portion between the inner ring and the outer ring, and a second seal member arranged on an outer side in an axial direction of the first seal member are provided, the second seal member includes a core fixed to the outer ring, an elastic ring-like member fixedly attached to the core and having at least one lip, and an outward attached slinger having a section in a channel-like shape fixed to the inner ring to cover the core and the elastic ring-like member and having a portion of a section in an L-like shape and a circular cylinder shape portion.

Abstract: Device for sealing an actuator includes a drive shaft (2) and an elongated body (3) which move, relatively to each other, along their longitudinal axis, covered by a sleeve (4) which covers at least partially both the elongated body and the drive shaft, the sleeve having a first portion conformed with the bellows (41) and a second portion (42) having the shape like the elongated body so that it may be fitted on it and blocked at its end, the bellows portion being positioned in correspondence of the shaft (2) and locked on it at its end so that the sleeve is integral with the shaft itself.

Abstract: A shaft seal for a turbomachine is provided for sealing process side of the turbomachine against the atmosphere. The shaft seal includes a process gas seal which is acted upon by a process gas and be blocked on the process side, an atmosphere seal which is acted upon by air and be blocked on the atmosphere side, and a ventilation chamber extending around the shaft of the turbomachine. The ventilation chamber is arranged between the process gas seal and the atmosphere seal for collecting and discharging a process gas leakage that has passed through the process gas seal and an air leakage that has passed through the atmosphere seal. The ventilation chamber includes a radially inner leakage inlet, a radially outward leakage outlet and built in components that are dimensioned to as to provide a flame blocking function with regard to ignition of the leakage at the leakage inlet.

Abstract: A contact seal to prevent contamination from fouling a conveyor idler roll, the roll generally comprising a rotatable cylinder, at least one internal bearing assembly, and a fixed axle. A disc of thermoplastic polymer or similarly resilient material is adhesively attached preferentially to an outboard end cap of the idler roll to seal out contamination. A circular aperture through the disc allows the attached seal to rotate about the idler axle. At least one ring of felt or other porous material is adhesively attached to the disc circumferentially to the aperture to filter out contamination when the ring is in frictional contact with the roll end cap. The seal is preferentially divided along the longitudinal axis of the disc to form two interlocking semicircular half-pieces that are snapped together circumferentially about the idler axle so that no disassembly or modification of the idler is required to adhesively attach the seal.

Abstract: A seal and seal assembly for providing a seal between an outer shaft and an inner shaft. The assembly includes a seal subassembly disposed between the shafts. The subassembly includes a split carbon ring, a solid outer ring, and a spring mechanism provided between the split carbon ring and the solid outer ring. The carbon ring is radially split into a plurality of segments having splits between ends of adjacent segments. The segments include a circumferential inner radius and a sealing dam on the circumferential inner radius. The solid outer ring includes a sealing face and a plurality of hydrodynamic grooves provided on a radial face. The spring mechanism may be configured to engage a portion of an outer diameter of the split carbon ring and a portion of an inner diameter of the solid outer ring and to urge the split carbon ring radially towards the inner shaft.

Abstract: A rotating flow diverter has a lubricated sealed bearing assembly for isolating bearing elements from wellbore fluids under pressure. The sealed bearing assembly is supported between an outer bearing housing and an axially rotatable quill. The bearing assembly further has bearing elements with a bearing lubricant under pressure and a seal assembly. The seal assembly has at least one sealing element which comprises a body, the body having an outer peripheral wall, an inner sealing surface having a plurality of sealing lips and an annular cavity, and a loading ring for compressionally fitting within the annular cavity to urge the sealing surface radially inwardly for sealing engagement with tubulars.

Abstract: A seal assembly seals a first portion of a machine part relative to a second portion of the machine part. The seal assembly includes at least one seal element that contacts the machine part or contacts a component connected with the machine part or that extends with a gap relative to the machine part or to the component connected with the machine part. At least one of the seal element, the machine part and the component connected with the machine part is provided or coated with a material, which has super hydrophobic properties, in the area of the seal element.

Abstract: Seal assembly for sealing a clearance gap between a boundary of an aperture formed in a housing and a member extending through the aperture. The seal assembly comprises a seal member and a seal member mounting means disposed around the sealing member and is configured to engage with the aperture boundary. The seal member mounting means is configured to seal an alignment interspace provided in the clearance gap between the seal member and aperture boundary. The seal member mounting means is configurable to permit the seal member to be located at a position relative to the aperture boundary in dependence upon the relative positions of the member and aperture boundary to thereby accommodate misalignment between the member and aperture boundary. The seal member mounting means is configurable to lock the seal member relative to the aperture boundary in said position.

Abstract: Eyeball seals for a gimbaled rocket engines, and associated systems and methods are disclosed. A system in accordance with a particular embodiment includes a rocket body, an engine carried by and movable relative to the rocket body, and a seal assembly. The seal assembly can include a sealing surface carried by one of the rocket body and the engine, and a seal element carried by the other of the rocket body and the engine. The seal element is in contact with the sealing surface. The seal assembly can further include a cylinder and a piston slideably received in the cylinder, with one of the piston and the cylinder carrying the seal element. The cylinder includes ports that are in fluid communication with a region external to the rocket body. Accordingly, pressures external to the rocket body can force the seal element and/or the sealing surface into contact with each other.