摘要:
A bearing seal includes a rotor and a stator and at least one electrically conductive elastomeric toroidal member. When the bearing seal is installed in equipment and is providing sealing between the rotor and the stator, an electrical grounding path is provided therebetween, the electrical grounding path extending through the electrically conductive elastomeric toriodal member.
摘要:
The present invention relates to electrical machines having a shaft rotatably supported in a housing and having a labyrinth seal with labyrinth contours engaging into one another for sealing the housing with respect to the shaft. The invention in this respect in particular relates to the labyrinth seal for sealing the housing of a three-phase machine with respect to a shaft rotatable relative to the housing. In accordance with the invention, at least one side of the labyrinth seal is at least provided with an insulating coating in the region of the labyrinth contours.
摘要:
A labyrinth seal includes a first labyrinth ring and a second labyrinth ring. In an installed state of the labyrinth seal, the first labyrinth ring and the second labyrinth ring engage in each other in an at least partially overlapping manner and are rotatable relative to each other. Furthermore, in the installed state, mutually-opposing surfaces of the first and of the second labyrinth ring have different wear resistances.
摘要:
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.
摘要:
A labyrinth seal includes a first labyrinth ring and a second labyrinth ring. In an installed state of the labyrinth seal, the first labyrinth ring and the second labyrinth ring engage in each other in an at least partially overlapping manner and are rotatable relative to each other. Furthermore, in the installed state, mutually-opposing surfaces of the first and of the second labyrinth ring have different wear resistances.
摘要:
In the method, a support is provided that presents a base for an annular wiper, and a wiper is built up that presents height that varies around its circumference, by forming a plurality of projecting portions by performing following successive steps: a laser source connected to an optical head focused on a point on the top surface of the base is activated, as is a source of powder connected to the spray nozzle, thereby forming a localized melt at said point, into which the powder is injected, thus forming a localized region of extra thickness; and the optical head and the nozzle are aimed at another point adjacent to said region of extra thickness and the method returns to the preceding step until the layer of material is completed in the angular sector in question.
摘要:
In the method, a support is provided presenting an annular base for a wiper, and the projecting portion of the wiper is built up by depositing successive layers on the base by performing the following steps: activating both a laser source connected to an optical head focused on a point of the surface of the top of the base and a source of powder that is connected to a spray nozzle, thereby forming a localized melt at said point, with the powder being injected into the melt, thereby forming a localized region of extra thickness; and aiming the optical head and the nozzle on another point adjacent to said region of extra thickness, and returning to the preceding step, until a layer has been formed over substantially the entire base.
摘要:
An article includes a silicon oxycarbide-based layer that has Si, O, and C in a covalently bonded network. The silicon oxycarbide-based layer has first and second opposed surfaces. A calcium-magnesium alumino-silicate-based layer is interfaced with the first surface of the silicon oxycarbide-based layer.
摘要:
A sealing device for a bearing unit, having a stationary part, which is in turn provided with a first metal screen, an elastomer coating co-moulded on to the first screen, and a radially inner contact lip belonging to the elastomer coating, and a rotatable part provided with a second metal screen with which the contact lip makes a sliding contact, the sealing device being provided with at least one appendage which faces a radially inner flanged ring of the bearing unit and interacts with this flanged ring to form a barrier against the entry of contaminants.
摘要:
A seal assembly configured for use with a high pressure single screw compressor includes a seal body and at least one attachment structure. The at least one attachment structure fixedly attaches the seal body to the rotor of the compressor, such that the seal body is rotatable along with the rotor. The seal body has a textured outer surface which creates a labyrinthine path between the compressor housing and the seal body.