The invention relates to a method for coating cavity walls, in particular cylinder bores of engine blocks, In the method, a coating is applied to a cavity wall using a coating lance. In addition, a cavity diameter is measured using a measuring apparatus. According to the invention, the method is characterized in that at least a plurality of diameter values of a first cavity are measured at different heights of the first cavity using the measuring apparatus, and in that a coating of variable thickness is applied to a wall of the first or a second cavity using the coaling lance, the thickness of said coating of variable thickness being dependent on the determined diameter values. The invention additionally describes a corresponding coating system.

Methods and systems for filling a muffler body with a fibrous material prior to completing assembly of the muffler body are disclosed. The muffler body is composed of two half shells and the fibrous material is injected between the shells by a filling nozzle.

A cavity cleaning and coating system for safely and efficiently cleaning and coating the interior of a cavity without requiring entry of any workers. The cavity cleaning and coating system generally includes a mount which is coupled with a movable arm of a vehicle. The mount includes an inner plate, which is coupled to the arm, and an outer plate. A shaft is coupled to the outer plate. The mount is adjustable independently of the arm of the vehicle, including outwardly, inwardly, and rotatably. A spray head is connected to the shaft. The spray head is rotatable and includes a dispenser for dispensing fluids. The vehicle is positioned near a cavity to be treated. The mount is adjusted for optimal positioning of the spray head. The spray head is lowered into the cavity to dispense a cleaning fluid and, after the cleaning fluid has dried, a coating fluid.

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.

The system includes a robot multi-jet system having a spray section, a drier section, and a catalyst section. The drier section includes a warm air blower, the catalyst section includes a photocatalyst tank, and the spray section includes a plurality of jet extensions. A first jet extension connected to the photocatalyst tank sprays a uniform layer of a photocatalyst through a first set of jets, and a second jet extension that is mechanically connected to the drier section and in fluid communication with the warm air blower is configured to spray a gas onto an inner surface of the glass tube with a second set of jets. Both the drier section and the catalyst section are mounted on wheels to move the system on the inner surface of the glass tube. A motor is electrically connected to a battery mounted within the robot and mounted to the wheels.

A spray coating system includes a spraying robot sized to fit within a conduit. The spraying robot includes arms that extend outward and retract inward to maintain contact with an interior surface of the conduit. The spraying robot is configured to be coupled with hoses that separately supply different fluids to the spraying robot. The spraying robot includes a spray head from which a compound formed from the fluids is sprayed onto the interior surface of the conduit. The spraying robot is configured to be pulled through the conduit and/or self-propel in the conduit to spray the compound onto the interior surface of the conduit and form a coating thereon.

The invention relates to a method and a system for the metal coating of a bore wall of a bore in a workpiece by means of atmospheric plasma spraying, wherein a coating lance having an anode and a cathode is moved axially into the bore and, in doing so, is rotated about its longitudinal axis, between the anode and the cathode an arc is produced, into which a plasma gas mixture is introduced and ionized, wherein a plasma flow is produced, a coating powder is supplied into the plasma flow and the plasma flow with the particles is sprayed onto the bore wall and on the bore wall a coating is formed. According to the invention provision is made in that the coating lance is moved into the bore at an axial feed speed and is rotated at a rotational speed of 420 rpm to 520 rpm and, at a volume flow of plasma gas mixture of 30 l/min to 70 l/min, coating powder is injected at a supply rate of 90 g/min to 130 g/min.

A system and method for coating marine pipeline weld joints and wet inspection of the applied coating is provided. The coating system includes an anti-corrosion coating including a fluorescent pigment to enhance inspection of the applied coating. The system also includes a robotic crawler for traversing inside the pipe and carrying a coating apparatus and inspection apparatus respectively configured to apply the coating on the weld joints and facilitate inspection of the wet coating. The coating apparatus comprises a spraying nozzle provided on a forward end of the robotic crawler and configured to spray coating onto on the surrounding circumferential pipe surface. The inspection apparatus includes an ultraviolet radiation emitter for activating the fluorescent pigment in the coating and a camera for providing a live image feed of the coated weld joint area to an operator computing station for inspection of the applied coating.

Pipe inspection systems including a push-cable, jetter, and camera assembly are disclosed. A jetter nozzle may be configured to spin and/or propel the camera head within a pipe or other cavity. A cutter line may be attached to the camera head to clean obstructions. A sonde may be coupled to a camera head to generate magnetic field signals for use with a buried utility locator to locate a pipe or other cavity into which the camera head is deployed.