Abstract: A fluid end comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section is releasably attached to a connect plate. Each connect plate is attached to a power source using a plurality of stay rods. Each fluid end section comprises a housing in fluid communication with a pair of intake manifolds and a discharge conduit. A fluid routing plug is installed within each housing and is configured to route fluid throughout the housing. A plunger is installed within stuffing box attached to each housing. A number of features, including the location of seals within bore walls and carbide inserts within valve guides, aid in reducing or transferring wear.

Abstract: The dry-running piston rod packing for sealing a piston rod supported in such a way that the piston rod can be moved in a longitudinal direction (L) having at least one chamber ring, a sealing chamber, and a sealing ring arranged in the sealing chamber, wherein the piston rod packing has a high-pressure side and a low-pressure side, wherein a lift-off device is designed and arranged in such a way that the lift-off device can lift and lower the sealing ring in the longitudinal direction (L).

Abstract: A plunger seal is mounted on the pump head, has a through hole for allowing penetration of the plunger, and holds the outer circumferential surface of the plunger and also seals an opening of the pump chamber. A backup ring is mounted on the pump head by being interposed between the plunger seal and the tip end surface of the pump body. The backup ring has a through hole, for allowing penetration of the plunger, formed in a manner not allowing the plunger seal to enter a gap to the outer circumferential surface of the plunger, and also has a liquid passage element for allowing the cleaning liquid in the cleaning space to reach the plunger seal through the through hole.

Abstract: A seal assembly with an axis is provided that includes a rotor and a seal element that is connected to a stator with an anti-rotation element. The seal element includes a first element surface, a second element surface and an annular notch. The first element surface axially engages the stator. The second element surface radially engages the rotor. The notch extends into the seal element between the first and the second element surfaces. The stator radially overlaps a portion of the notch.

Abstract: A sealing device is provided with a floating ring between an outer periphery of a rotating shaft and an inner periphery of a casing and is characterized in that a turn-stopping means is provided to a single point in a circumferential direction of the floating ring, and a groove for generating dynamic pressure is provided in unequal distribution in the circumferential direction to an inner peripheral surface of the floating ring, wherein a dynamic pressure is generated by a dynamic pressure groove provided to the inner peripheral surface of the floating ring and is employed to thereby match together the center of the rotating shaft and the floating ring.

Abstract: A windmill having a hub sealing apparatus for sealing an interface between a hub and a blade of the windmill, The hub sealing apparatus includes a bottom sealing ring configured to be sealed to the hub, a top sealing ring configured to be rotatably sealed to the blade, and a middle sealing ring configured to be sealed to the top sealing ring and the bottom sealing ring, so as to connect the top and bottom sealing rings.

Abstract: A shaft seal includes first and second rings, each formed from first and second discrete arc segments, mounted on a shaft. The first ring includes a central opening and a flange projecting axially away from a first axial surface of the first ring around the central opening, and the flange has a radially outer surface. The second ring has a radial inner face defining a central opening that includes a first portion extending from a first axial face of the second ring and a second portion extending from a second axial face of the second ring, and the second ring is mounted to the first ring with the second portion in contact with the radially outer surface of the flange. A plurality of fasteners extend from the second ring into an axial surface of the first ring or from the first ring into an axial face of the second ring.

Abstract: An improved shaft seal includes a plurality of V-pack rings that each includes a bi-directional cut with cuts of unequal lengths. An upper cut extends from the top of the V-pack ring to the shoulder. A lower cut extends from the bottom of the V-pack to the shoulder and is longer in length than the upper cut.

Abstract: An elastomeric seal ring is located between each bearing pin and each cone of an earth-boring bit. An excluder ring or band is imbedded within the inner diameter of the seal ring. A portion of the inner diameter of the seal ring as well as the excluder ring are in dynamic sealing contact with the bearing pin. The excluder ring may be harder and more wear resistant than the seal ring. The excluder ring may have lubricating properties. An outer excluder ring may be located on the outer diameter of the seal ring for engaging the cone to resist rotation.

Abstract: In pressure packings for sealing a piston rod of a compressor, a combination of a radially cut and a tangentially cut packing ring is generally used. These two interacting packing rings must in this case be prevented from rotating relative to one another in order to ensure that the wear gaps are covered by the other ring in each case. The rotation prevention means is generally a pin which is placed in both rings. However, owing to the resulting differing wear to the radially cut and the tangentially cut packing ring, the rotation prevention pins are subjected to shear stress which can cause the pins to break. In order to avoid that, pressure packings are proposed which have individual packing rings and have to be specially cut for this purpose. The present invention describes a packing ring of this type that is distinguished by especially low wear to the ring segments and a long service life associated therewith.

Abstract: A system and method of manufacturing improved wear ring assemblies and positive pressure shaft seals. The wear ring assemblies are made from stacked layers of flat metal. Different shaped component parts of the wear ring assemblies are cut from various sheets of metal. The component parts are stacked to form different sections of the wear ring assemblies. The stacked component parts are welded or otherwise bound together. The resulting sections of the wear ring assemblies are then assembled to form the annular structure of a full wear ring assembly. The result is a wear ring assembly that is both easy and inexpensive to produce.

Abstract: A ceramic finger seal for use between a housing and a combustor liner to inhibit air passage therebetween and for use in fluid sealing between a rotating shaft and a housing circumscribing the rotating shaft. The ceramic finger seal has at least two annular diaphragm members constructed of two or more diaphragm segments bonded end to end by ceramic cement or other high temperature joining compounds. The diaphragm members may be partitioned into a generally continuous inner diameter portion and a segmented outer diameter portion or the reverse thereof. The segmented portion includes finger elements spaced uniformly apart forming gaps therebetween and extend radially outward or inward terminating in a foot portion. The rolled edge on the finger is formed by laser cutting to prevent gouging of the combustor liner surface.

Abstract: A sealing method and method according to which a first and second ring are each provided with split ends, and an arcuate lip extends from one end portion of the each ring and in an axial direction relative to the ring and projects outwardly from the face of the ring. The rings are disposed in an interlocking relationship with the second portion of the lip of the first ring extending within, and in a closely spaced relation to, the corresponding inner surface of the second ring; and with the second portion of each lip of the second ring extending within, and in a closely spaced relation to, the corresponding inner surface of the first ring.

Abstract: A mechanical seal includes a fixed ring, a rotating ring and a shaft sleeve. The fixed ring is connected in a sealed state to a housing. The rotating ring has a slide part and an engaging part. The slide part faces and slidably contacts with the fixed ring. The engaging part is provided for adapting drivingly to engage in a concave-convex manner. The shaft sleeve has a stop part adapted drivingly to engage with the engaging part without relative rotation, and fitted and stopped to the rotating shaft in the sealed state.

Abstract: A seal assembly for a groove or seal gland in a relatively displaceable machine part for sealing an axial machine part extending therethrough comprises a pair of annular seal elements and a support element disposed between the annular elements and radially extending wall of said groove. The annular seal elements have an axial slot therein and a key portion extending therefrom, shaped to engage the axial slot. The seal elements are arranged in an inverted nesting relationship to provide superior sealing characteristics when biased toward the machine part by said support element.

Abstract: A seal assembly 20 for a groove 12 or seal gland in a relatively displaceable machine part 10 for sealing an axial machine part 18 extending therethrough comprises a pair of annular seal elements 30 and a support element 50 disposed between the annular elements 30 and a radially extending wall 14 of said groove 12. The annular seal elements 30 have an axial slot 32 therein and a key portion 36 extending therefrom, shaped to engage the axial slot 32. The seal elements 30 are arranged in an inverted nesting relationship to provide superior sealing characteristics when biased toward the machine part 18 by said support element 50.

Abstract: A self-adjusting interlocking throat bushing is provided in which mating concentric bushing rings are provided with an interlocking annular slot in the outer bushing ring and an annular ridge at the periphery of the inner bushing ring to hold the two rings in axial alignment when bushing is installed and the packing gland is tightened to compress the packing ring between the gland and the bushing. The annular slot/ridge structure prevents canting of the parts of throat bushing during packing ring compression thereby eliminating packing extrusion between the shaft and the annulus of the bushing. Before compression, the concentric rings are held together in alignment so that the bottom ring cannot drop out of its proper position prior to compression. After compression, the locking structure comprising the slot and ridge structure results in the bushing being compressed evenly about the shaft, thereby to eliminate misalignment and shaft sleeve wear.

Abstract: Compact stuffing box packing assemblies of the present application include high density metal inserted braided end rings of graphite which have each been die formed to have angled facing surfaces and a plurality of center Preform rings is disclosed In one embodiment, three low density graphite Preform rings having angled facing surfaces are contained between the high density braided end rings. The facing surfaces of the Preform rings extend at a different angle relative to the longitudinal axis of the packing assembly than do the facing surfaces of the braided end rings. The braided end rings provide a support function for the Preform rings as well as a stem wiping function. In another embodiment, additional Preform support rings made of the same material as the end rings are positioned between the low density Preform rings.

Abstract: The present invention relates to glide rings for use with a carrier for transporting articles through pneumatic tube systems, and more particularly, glide rings comprising Velcro.RTM. secured plastic or rubber strips to allow efficient replacement of said glide rings. The glide rings have an outer cross-sectional dimension which allow them to engage the inner surface of the passageway of the pneumatic tube system. This provides stability to the carrier and allows the carrier to be moved in response to the controlled air pressure within the passageway. Each of the glide rings has a small width in relationship to the overall length of the closed elongated compartment, and each is located in proximity to the ends of the carrier.

Abstract: The compact five ring stuffing box packing assembly includes high density metal inserted braided end rings of graphite which have each been die formed to have angled facing surfaces. Three low density graphite preform rings having angled facing surfaces are contained between the high density braided end rings. The facing surfaces of the preform rings extend at a different angle relative to the longitudinal axis of the packing assembly than do the facing surfaces of the braided end rings. The braided end rings provide a support function for the preform rings as well as a stem wiping function.