Abstract: A method for forming a 3D object, comprising running control means with reference to data which defines 3D shape parameters of an object such that the control means: •uses the data to control an applicator to spray material at a substrate to build the object out of progressively applied layers, wherein at least some of the layers have an initial inwardly tapered outer edge; and •for at least some such layers causing the control means to use the data to move the applicator to apply spray material to fill in the taper.

Abstract: Apparatus for forming a 3D object from powder, comprising: a) delivery means adapted to emit a flow of powder at sufficiently high velocity to enable it to form the 3D object; b) positioning means adapted adjust the position of the delivery means; and c) control means adapted to control: i) movement of the positioning means; and ii) the velocity of the flow of powder.

Abstract: An apparatus for forming 3D objects from metallic powder, includes a delivery mechanism adapted to emit a flow of metallic powder at sufficiently high velocity to enable it to form a solid mass on a substrate; and a positioning mechanism adapted to set or adjust the distance and/or angle between the delivery mechanism and the substrate as powder builds up on the substrate. A control system is adapted to receive measured geometry data representing the state of the object as it builds and to control adjustment of the positioning means in response to that data for accurate formation of the object.

Abstract: Apparatus for forming a 3D object from powder, comprising: a) delivery means adapted to emit a flow of powder at sufficiently high velocity to enable it to form the 3D object; b) positioning means adapted adjust the position of the delivery means; and c) control means adapted to control: i) movement of the positioning means; and ii) the velocity of the flow of powder.

Abstract: A fan assembly includes an axis of rotation and a fan that includes an inlet ring and a rear plate that together define an inner fan chamber, wherein the fan is a backward curved plug fan. The fan assembly also includes an axial flux motor coupled to the rear plate such that the motor is positioned entirely outside the fan chamber to facilitate preventing interference between the motor and an airflow within the fan chamber.

Abstract: The Invention relates to apparatus for forming 3D objects from metallic powder, comprising: •delivery means adapted to emit a flow of metallic powder at sufficiently high velocity to enable it to form a solid mass on a substrate; and •positioning means adapted to set or adjust the distance and/or angle between the delivery means and substrate as powder builds up on the substrate; and •control means adapted to receive measured geometry data representing the state of the object as it builds and to control adjustment of the positioning means in response to that data for accurate formation of the object.

Abstract: A method for forming a 3D object, comprising running control means with reference to data which defines 3D shape parameters of an object such that the control means: •uses the data to control an applicator to spray material at a substrate to build the object out of progressively applied layers, wherein at least some of the layers have an initial inwardly tapered outer edge; and •for at least some such layers causing the control means to use the data to move the applicator to apply spray material to fill in the taper.

Abstract: Apparatus for forming a 3D object from powder, comprising: a) delivery means adapted to emit a flow of powder at sufficiently high velocity to enable it to form the 3D object; b) positioning means adapted adjust the position of the delivery means; and c) control means adapted to control: i) movement of the positioning means; and ii) the velocity of the flow of powder.

Abstract: A motor housing for enclosing a first stator module and a second stator module of a motor is provided. The motor housing includes a stator housing. The stator housing has a first module portion coupled to the first stator module, wherein the first module has a first contoured shape complimentary to the first stator module. A second module portion is coupled to the second stator module, wherein the second module has a second contoured shape complimentary to the second stator module. The housing also includes a base portion having a first side coupled to the first module portion and a second side coupled to the second module portion. The base portion further includes a third side coupled to and extends between the first side and the second side. A rotor housing is coupled to the stator housing and has a fastener coupled to the third side.

Abstract: A fan assembly includes an axis of rotation and a fan that includes an inlet ring and a rear plate that together define an inner fan chamber, wherein the fan is a backward curved plug fan. The fan assembly also includes an axial flux motor coupled to the rear plate such that the motor is positioned entirely outside the fan chamber to facilitate preventing interference between the motor and an airflow within the fan chamber.

Abstract: A motor housing for enclosing a first stator module and a second stator module of a motor is provided. The motor housing includes a stator housing. The stator housing has a first module portion coupled to the first stator module, wherein the first module has a first contoured shape complimentary to the first stator module. A second module portion is coupled to the second stator module, wherein the second module has a second contoured shape complimentary to the second stator module. The housing also includes a base portion having a first side coupled to the first module portion and a second side coupled to the second module portion. The base portion further includes a third side coupled to and extends between the first side and the second side. A rotor housing is coupled to the stator housing and has a fastener coupled to the third side.

Abstract: A blower comprises a blower housing, a fan, a motor and a support member. The blower housing has an air outlet opening. The fan is within the blower housing, the fan is adapted for rotation about a fan axis. The motor has a stator and a rotor. The rotor is rotatably coupled to the stator for rotation about the fan axis. The rotor and fan are coupled such that the fan rotates with the rotor. The support member is connected between the stator of the motor and the blower housing and extends generally radially from the fan axis. The support member supports both the motor and the fan.

Abstract: The present invention provides a method for controlling the output power of a permanent magnet electric motor (102) using a control means (106). The control means (106) includes a means (134) for measuring motor speed (134) and motor phase current (134), and a means for controlling motor phase current (110) to a desired level. A known relationship between motor phase current and motor torque is then employed by a torque controller so that motor shaft torque can be controlled. A power limiting means (128) then limits the output mechanical power of the motor by dividing a limit value of power by the motor speed to produce a maximum allowable torque setting for that speed.

Abstract: A poly-phase electromagnetic device having n winding phases (n>2) wherein each phase is made from a single conductor strand wound in a lap form configuration. The windings are configured such that on assembly to a slotted magnetically conducive base a maximum of n?1 end turns overlapping is achieved so that the slot packing density can be optimised. The preferred configurations also enable neat and compact terminations which facilitates efficient packaging of the completed device. The windings are made either from discrete bobbins which are electrically interconnected upon assembly to the base, or alternatively from strings of continuously formed sub-windings. The latter process in particular enables full or partial automation of the winding and/or assembly process.