The disclosure describes a rotary device that includes a housing, a rotating machine component, a rotating member associated with the rotating machine component, a non-rotating member disposed within the housing adjacent the rotating member, and a sensor array disposed in the housing. The sensor array includes a plurality of sensing elements that are integrated with a control device and a wireless communication device. The wireless communication device is configured to communicate with a central control that is remotely located relative to the housing using electromagnetic waves.

An oil transfer assembly has a fixed structure, with at least one inlet for receiving lubricating oil, and an interface member rotating about an axis and having a front face, from which at least one duct starts for conveying the lubricating oil; the assembly is provided with a slide having an annular chamber, which is delimited axially, on one side, by the front face and connects the inlet with the duct; the slide is coupled to the front face so as to guarantee a seal for the fluid of the annular chamber and engages a guide seat provided in the structure in an axially sliding manner.

A rotary device includes a housing, a rotating machine component, a rotating member associated with the rotating machine component, a non-rotating member disposed within the housing adjacent the rotating member, and a sensor array disposed in the housing. The sensor array includes a plurality of sensing elements that are integrated with a control device and a wireless communication device. The wireless communication device is configured to communicate with a central control that is remotely located relative to the housing using electromagnetic waves.

A rotary union includes a housing forming a bore and a piston bore having an open end and disposed at a radially offset distance with respect to the bore. The piston bore is fluidly isolated from the bore. A seal carrier is slidably disposed within the bore, and includes an actuation arm extending radially outwardly relative to the bore such that it overlaps the piston bore. A piston slidably disposed in the piston bore is extendible to releasably abut the actuation arm and urge the seal carrier to displace relative to the bore when the piston displaces relative to the piston bore.

A rotary union includes a housing forming a bore and a piston bore having an open end and disposed at a radially offset distance with respect to the bore. The piston bore is fluidly isolated from the bore. A seal carrier is slidably disposed within the bore, and includes an actuation arm extending radially outwardly relative to the bore such that it overlaps the piston bore. A piston slidably disposed in the piston bore is extendible to releasably abut the actuation arm and urge the seal carrier to displace relative to the bore when the piston displaces relative to the piston bore.

A rotary union includes a housing forming a bore and a piston bore having an open end and disposed at a radially offset distance with respect to the bore. The piston bore is fluidly isolated from the bore. A seal carrier is slidably disposed within the bore, and includes an actuation arm extending radially outwardly relative to the bore such that it overlaps the piston bore. A piston slidably disposed in the piston bore is extendible to releasably abut the actuation arm and urge the seal carrier to displace relative to the bore when the piston displaces relative to the piston bore.

A rotary device having a housing, a rotating machine component, a rotating member associated with the rotating machine component, a nonrotating member disposed within the housing adjacent the rotating member, and a sensor array disposed in the housing. The sensor array includes a plurality of sensing elements that are integrated with a control device and a wireless communication device. The wireless communication device is configured to communicate with a central control that is remotely located relative to the housing using electromagnetic waves.

A rotary joint having a rotating part provided with a rotating channel in an axial direction, attached to a shaft, and advancing and retracting in the axial direction and, arranged coaxially, a stationary part provided with a stationary channel in the axial direction, wherein an engagement part which allows relative rotation of a rotating seal part provided at the rotating part and a stationary seal part provided at the stationary part while stopping movement in the axial direction and holds a state in which the two sealing surfaces of said rotating seal part and stationary seal part are made to abut facing each other and wherein a rotation stopping mechanism restricting relative rotation of the stationary shaft part with respect to the fitting hole about the axis are provided.

A rotary union includes a housing, a rotating machine component supported in the housing, a rotating seal member associated with the rotating machine component, a non-rotating seal member slidably and sealably disposed within the housing adjacent the rotating seal member, an expandable seal disposed between the non-rotating seal member and the housing, and an internal clamp disposed within an end portion of the expandable seal such that the end portion of the expandable seal is compressed between the internal clamp and the bore of the housing.

A rotary joint including a stator and a rotor, each having at least one fluid channel, and a fluid transfer interface between the stator and the rotor, via which a fluid flows from the fluid channel in the stator into the fluid channel in the rotor, the fluid transfer interface being sealed off with respect to the surrounding environment by a mechanical seal, which comprises an abrasive sliding ring, and the sliding ring bears in an axial direction in an elastically biased manner against at least one mating ring and forms a seal face therewith. An axial displacement detection device is provided, which is designed to detect, in the event of wear on the sliding ring, an associated axial displacement of the stator and/or rotor. The axial displacement detection device comprises a rotary encoder on the rotor and a sensor that detects a position of the rotary encoder.