A cleaning apparatus has a hollow input shaft connectable to a hydraulic pressure source, is received in a first housing part and has a fluid conduit, with at least one lateral or axial input and at least one lateral output. At least one hollow output shaft is fluidically coupled to the hollow input shaft, received in a second housing part, and has a fluid channel, with at least one lateral input and at least one lateral or axial output. The hollow input shaft and/or the hollow output shaft is/are mounted rotatably about the longitudinal axis thereof relative to the relevant housing part. A first chamber is at least between the input or output of the hollow input shaft or the input of the at least one hollow output shaft and an interior lateral surface of a sealing sleeve. The sealing sleeve is fixed in a stationary and non-rotatable manner on the relevant housing part and arranged surrounding a portion of the hollow input or output shaft. Regions of the interior lateral surface of the sealing sleeve extending axially from the first chamber form a gap seal with the exterior lateral surface of the hollow input or output shaft.

The present invention relates to a high pressure nozzle (1), comprising a longitudinal housing (11, 12), with an internal channel (15) therein, a nozzle head support shaft (20), which is rotatably arranged partially in the internal channel (15), a rotary nozzle head (30), which is attached to the nozzle head support shaft (20) and arranged outside the housing (11, 12), and an axial bearing seat (40), which is located within the housing (11, 12) and which comprises an axial bearing surface (41) that faces an end surface (22) of he nozzle head support shaft (20). The axial bearing surface (41) and the support shaft end surface (22), during use, cooperate to form an axial bearing for the nozzle head support shaft (20) and the axial bearing seat (40) comprises an axial bore (42) in the axial bearing surface that is aligned concentrically with an axis of rotation of the nozzle.

Apparatus (1) for applying paint comprises a device (40) for applying paint that comprises a plurality of spray guns (26) that is movable along a closed path having two parallel sides connected by two circular arcs, a rotating joint (43) for supplying paint provided with a distributor and comprising a plurality of tube-support chains (44), each tube support chain (44) connecting the distributor of the one rotating joint (43) for dispensing the painting product to a respective gun of said spray guns (26), in which each tube support chain (44) has an inverted U-shape provided with two ends, of which—the first end is connected to a first rotating support (61), which is connected to the rotating joint (43) and follows a circular trajectory, while—the second end is connected to a second rotating support (62), which is connected to a support arm (41) of a respective gun (26) and follows in use the trajectory defined by said closed path.

A spray cleaning device for cleaning the interior of a vessel or the like through an access opening in an underside thereof. The cleaning device includes a wheeled carriage positionable in selected relation to a vessel to be cleaned, an elongated frame having a central drive shaft extending along its length, and a rotatable spray head supported in an upstanding relation to a downstream end of said elongated housing for rotation about multiple axes. The elongated frame is pivotably supported by said wheeled carriage for selective positioning of the spray head within the vessel to be cleaned, and the spray head has a liquid supply which communicates with a liquid inlet to an upstanding support thereof downstream of the central drive shaft so said liquid is not transmitted along the drive shaft.

Apparatus for painting mainly flat products including a spray booth, in its turn including a plenum, a conveying belt for conveying products at least a device for applying paint, and at least one suction plant, wherein the plenum of the spray booth has a symmetric M-shape including, from the respective peripheries to the centre of the plenum: two first descending surface portions tilted towards the periphery; two second lateral surface portions parallel to the belt; two third descending surface portions, with a tilt towards the centre, opposite the tilt of the first portions; a fourth central surface portion parallel to said belt, the fourth central surface portion being closer to the conveying belt than the lateral parallel sections.

A rotor nozzle includes a carrier element having an axial bore for supplying a pressurized liquid, a nozzle head rotatably mounted thereon and rotatably drivable by a hydraulically generated torque. The nozzle head has at least one laterally emerging removal nozzle in fluid-open communication with the axial bore. The removal nozzle is radially aligned. The nozzle head has at least one laterally emerging, separate drive nozzle extending at a distance from the radial and, depending on the rotational position of the nozzle head, is in communication with the axial bore via a through-bore of the carrier element.

An apparatus and method for simulating the effects of dew are disclosed. The apparatus includes a moveable platform; a rotatable base, the rotatable base being connected to the platform; and a plurality of elongated rods for penetrating and spraying beneath the surface of a windrow. The rods radiate from a longitudinal axis of the rotatable base.

A method for preserving cavities by applying a protective layer to the interior of a hollow body. The method uses a mixing nozzle unit coupled to a rotor unit. The mixing nozzle unit is rotated about an axis of rotation and has a mixing nozzle. The mixing nozzle unit has two supply channels for the cavity preservative and for gas for atomizing the cavity preservative. The supply channels run in the direction of the axis of rotation and conduct cavity preservative and atomizing gas separately to the mixing nozzle. The mixing nozzle unit is inserted into the hollow body in the direction of the axis of rotation through an opening in the hollow body. The cavity preservative is discharged in atomized form, and the mixing nozzle unit is rotated about the axis of rotation relative to the hollow body during the discharging or between a plurality of discharging phases.

A descaling device having a device housing, a shaft, a shaft bearing, a nozzle head and a medium coupling, wherein the shaft bearing is arranged in the device housing and the shaft is mounted in the device housing by the shaft bearing for carrying out a rotary movement, wherein the shaft and the nozzle head are detachably connected to one another in a non-destructive manner, wherein the medium coupling has a medium connection for supply of a medium, wherein the shaft has a shaft cavity for conducting the medium supplied at the medium connection to the nozzle head. The descaling device has an improved maintainability, and reliability due to the descaling device having a motor, and due to the motor being arranged on the shaft in the device housing between the nozzle head and the medium coupling in order to generate the rotary movement of the shaft.

The washing nozzle for washing an inside of the machine tool with fluid includes a base portion having a tubular passage inside thereof, a supply port through the tubular passage, and a rotary member rotatable about an axis parallel to a surface on which the base portion is mounted, the rotary member having inside thereof a nozzle jet port and a nozzle flow passage allowing communication between the tubular passage and the nozzle jet port, wherein the jet port is formed so that fluid jetted from the jet port of the rotary member hits the surface on which the base portion is mounted and the jet of the fluid causes the rotary member to rotate about the parallel axis.