A head is disclosed for use with a manufacturing system. The head may have a housing configured to discharge a tubular structure reinforced with at least one continuous fiber and having a three-dimensional trajectory, and a cure enhancer operatively connected to the housing and configured to cure a liquid matrix in the tubular structure during discharge. The head may also have a nozzle configured to discharge a fill material into the tubular structure, and a wand extending from the housing to the nozzle.

A system is disclosed for use in manufacturing a composite structure. The system may include a support configured to move in a plurality of directions during manufacturing of the composite structure, and a head coupled to the support. The head may have a housing that is configured to receive a liquid matrix and at least one continuous fiber and configured to discharge a tubular structure. The head may also have a nozzle operatively connected to the housing and configured to deposit a material layer onto a surface of the tubular structure as the tubular structure is discharging from the housing, and a squeegee associated with the nozzle and configured to wipe over the material layer. The head may further have a first cure enhancer operatively connected to the housing and configured to cure the liquid matrix in the tubular structure during discharge, and a second cure enhancer configured to cure the material layer deposited by the nozzle.

A head is disclosed for use with a continuous manufacturing system. The head may have a housing, a fiber guide rotatably disposed at least partially inside the housing, and a diverter disposed at an end of the housing. The diverter may be configured to divert radially outward a matrix-coated fiber passing through the fiber guide.

In one aspect, a sprinkler is provided having a nozzle, a deflector that receives fluid flow from the nozzle, and a friction or viscous brake assembly that controls rotation of a deflector. The friction or viscous brake assembly is releasably connected to the frame in order to enhance serviceability of the sprinkler. In another aspect, a sprinkler is provided having a frame, a deflector rotatably connected to the frame, a nozzle, and a nozzle socket of the frame. The nozzle and nozzle socket have interlocking portions that releasably connect the nozzle to the frame. The nozzle may be easily removed for servicing. Further, the nozzle socket can be configured to receive a plurality of nozzles having different flow characteristics. A nozzle can be selected and utilized with the sprinkler according to the desired application for the sprinkler.

In one aspect, a sprinkler is provided having a nozzle, a deflector that receives fluid flow from the nozzle, and a friction or viscous brake assembly that controls rotation of a deflector. The friction or viscous brake assembly is releasably connected to the frame in order to enhance serviceability of the sprinkler. In another aspect, a sprinkler is provided having a frame, a deflector rotatably connected to the frame, a nozzle, and a nozzle socket of the frame. The nozzle and nozzle socket have interlocking portions that releasably connect the nozzle to the frame. The nozzle may be easily removed for servicing. Further, the nozzle socket can be configured to receive a plurality of nozzles having different flow characteristics. A nozzle can be selected and utilized with the sprinkler according to the desired application for the sprinkler.

An annular gap space (18), into which a part of turbine air for driving a turbine (6) and exhaust air discharged from a rear thrust air bearing (12) flow out, is provided between an inner peripheral surface (5B) of a rotational shaft (5) and an outer peripheral surface (17B) of a feed tube (17). Air outflow holes (25) are provided in the rotational shaft (5) to be positioned between a radial air bearing (8) and a rotary atomizing head (16) and to be radially bored through the rotational shaft (5). As a result, the exhaust air flowing in the annular gap space (18) flows out outside of the rotational shaft (5) from the air outflow holes (25) in a position behind the rotary atomizing head (16).

A manually operable spreader which can be moved from behind on a surface is especially suitable for distributing salt and other particulate materials which tend to conglomerate or clump in a hopper of the spreader. Wheels are mounted to a frame also support the hopper. A horizontal drive shaft between the wheels is coupled to rotate a vertical shaft. A distributor below the hopper rotates with vertical shaft rotation to distribute particulate material which drop via openings in the bottom of the hopper. The vertical shaft extends via a hole in bottom of hopper and carries at the top thereof an auger having a helical vane. The auger is rotatable with the vertical shaft as the spreader is moved on its wheels. The auger circulates the particulate material in the hopper as the spreader moves while directing material in the hopper towards the bottom thereof.

A method for calculating a shape of a painting spray head that injects liquid paint supplied to the center in a radial direction while rotating, includes: inputting a material characteristic of painting liquid to be injected; selecting a start point where a curve starts on a front surface of the painting spray head; calculating the thickness of a liquid film injected from the painting spray head through an input numerical value; correcting the start point where the curve starts depending on a difference value between the calculated thickness of the liquid film and a required thickness of the liquid film; and calculating a curve shape of the painting spray head by using the corrected start point.

A dampening unit that sprays viscous application liquid to a treatment surface includes a rotating brush driven to rotate around the axis, a liquid applicator that supplies the liquid to the brush, and a brush chamber to accommodate the brush. The brush chamber includes a wall that surrounds the brush. The wall defines an ejection window for discharging viscous application liquid that is either sprayed or spun away from the brush.

An atomization device spraying method is provided. The atomization device includes a first atomization disk and a second atomization disk that are coaxially disposed and rotate in opposite directions, and the diameter of the first atomization disk is smaller than the diameter of the second atomization disk. The atomization device spraying method includes: obtaining spraying parameters of the atomization device; determining a target particle size D.sub.F of target fog droplets; adjusting, based on the spraying parameters and a preset model, a rotating speed N of the second atomization disk to a target rotating speed for outputting the target fog droplets with the target particle size D.sub.F, where the preset model is built by at least a secondary atomization factor determined based on the rotating speed N of the second atomization disk; and performing spraying through the target fog droplets with the target particle size D.sub.F.