Abstract:
A draft inducer blower assembly for use with a water heater has a housing, a motor, and a fan. The housing has an exhaust volute surrounding the fan and a base adapted to be mounted atop a water heater. The base has an inlet port adapted to receive exhaust gas from the water heater. The fan is connected to the motor for rotation about a rotation axis. The exhaust volute and the base may be or may not be non-adjustably fixed relative to each other. The exhaust volute has a cut-off at a cut-off angle relative to the rotation axis. The exhaust volute has an exhaust outlet passageway that extends to an exhaust port. The exhaust port is lower than the top of the exhaust volute.
Abstract:
Methods and systems for controlling an electric motor are provided herein. The system is configured to be coupled to a power supply. The electric motor system includes a rectifier, an electric motor, and a microcontroller. The rectifier is configured to convert an alternating current (AC) voltage input to a direct current (DC) voltage. The microcontroller is configured to extract power from a generator device.
Abstract:
An energy recovery apparatus for use in a refrigeration system, comprises an intake port, a nozzle, a turbine and a discharge port. The intake port is adapted to be in fluid communication with a condenser of a refrigeration system. The nozzle comprises a fluid passageway. The nozzle is configured to expand refrigerant discharged from the condenser and increase velocity of the refrigerant as it passes through the fluid passageway. The turbine is positioned relative to the nozzle and configured to be driven by refrigerant discharged from the fluid passageway. The discharge port is downstream of the turbine and is configured to be in fluid communication with an evaporator of the refrigeration system.
Abstract:
A stator assembly for use in an axial flux electric motor includes a plurality of tooth assemblies and a plurality of circumferentially-spaced stator bases that are each coupled to at least one tooth assembly. The stator assembly also includes a plurality of circumferentially-spaced bridge members. Each bridge member is configured to engage a pair of circumferentially adjacent stator bases to apply an axial pre-load force to the pair of stator bases and to create a flux path between the adjacent stator bases.
Abstract:
A grounding device for an electric machine, having a rotating component and a stationary component, includes a core fabricated from a non-conductive material and a plurality of conductive fibers coupled to the core and extending therefrom. The plurality of conductive fibers are configured to electrically couple the rotating component with the stationary component such that an electrostatic charge on the rotating component is directed through the plurality of conductive fibers to the stationary component.