Abstract: A load shed module configured to be connected in series between a power supply and a load is disclosed. A separate load shed module is connected in series between each load and the power supply. The load shed module determines the frequency of the voltage supplied from the power supply. Based on the frequency, the load shed module determines if utility power is connected or if a generator is connected. If the generator is connected and the frequency of the voltage goes outside of a desired operating range for a preset time, the load shed module disconnects the load from the power supply. Each load shed module includes a priority setting and reconnects its corresponding load after a predetermined time corresponding to the priority setting.

Abstract: A smart current transformer for determining primary current or power consumption, by stepping down the primary current to a secondary current for subsequent measurement by a connected meter. The current transformer is provided with a connected non-volatile memory for storing calibration data (and optionally identification data) regarding that particular current transformer. The calibration data can include the gain error and/or phase delay for the current transformer, as determined from prior calibration testing of the current transformer. The calibration data may be communicated to or otherwise determined by the meter, and used to calibrate the measurement of the secondary current, in order to determine the primary current or power consumption. Also disclosed is a system and method utilizing such a smart current transformer.

Abstract: A method of operating a forced induction gaseous-fueled engine includes mixing gaseous-fuel and engine intake air to form a mixture at a fuel mixer. The method includes delivering the mixture to an intake manifold by at least partially bypassing a charge air cooler.

Abstract: An internal combustion engine-based system includes an internal combustion engine. The internal combustion engine-based system includes an engine interrupt connected to the engine. The engine interrupt is configured to selectively stop the operation of the engine. The internal combustion engine-based system includes a controller in communication with the engine interrupt. The internal combustion engine-based system includes a carbon monoxide detector in communication with the controller. The controller uses the engine interrupt to stop the operation of the engine when the carbon monoxide detector provides the controller with signals that are representative of a carbon monoxide level proximate the internal combustion engine that together form a trend of building carbon monoxide amounts over a set time interval.

Abstract: A device such as a smart thermostat is provided for controlling heating and cooling systems. The device is operable to execute an energy control program to control the heating and a cooling systems based upon different control strategies: a first control strategy that compares the at least one temperature setpoint in the programming schedule to the current measured dry bulb temperature to determine whether to engage or disengage the heating and a cooling systems, and a second control strategy that compares the at least one temperature setpoint in the programming schedule to a normalized humidex temperature to determine whether to engage or disengage the heating and a cooling systems, the normalized humidex temperature being the current measured dry bulb temperature modified by historical humidity values to provide an indicator of thermal comfort within the premise.

Abstract: A rotor core lamination is provided. The rotor core lamination includes a plurality of salient poles. Each of the salient poles includes: a pole body having a central axis in a radial direction of the rotor core lamination; and a pole shoe extending radially outward from the pole body, wherein the pole shoe has a pole shoe arc, and a central point of the pole shoe arc is offset from the central axis.

Abstract: A mobile pressure washer can include a wheeled chassis, a power plant supported by the wheeled chassis, a fluid pump a fluid pump coupled to and driven by the power plant, a sprayer in fluid communication with the pump, a chemical solution container, and a container holder for supporting the chemical solution container. In some examples, the container holder has a frame operably connected to the wheeled chassis and has a container support mounted to the frame, the container support including a base wall and a sidewall defining a receptacle for receiving and supporting a container in fluid communication with the pump.

Abstract: A load shed module configured to be connected in series between a power supply and a load is disclosed. A separate load shed module is connected in series between each load and the power supply. The load shed module determines the frequency of the voltage supplied from the power supply. Based on the frequency, the load shed module determines if utility power is connected or if a generator is connected. If the generator is connected and the frequency of the voltage goes outside of a desired operating range for a preset time, the load shed module disconnects the load from the power supply. Each load shed module includes a priority setting and reconnects its corresponding load after a predetermined time corresponding to the priority setting.

Abstract: A blower includes a motor mounted to a frame. The frame includes wheels mounted to the frame. The blower includes a fan powered by the motor and a blower outlet. The fan is configured to expel air from the fan through the blower outlet. The blower outlet is movable in a horizontal direction and a vertical direction. The blower includes a horizontal control for controlling a horizontal position of the blower outlet. The blower includes a vertical control for controlling a vertical position of the blower outlet. Both the horizontal and vertical controls are positioned remote from the blower outlet.

Abstract: Various enhancements to grid-interactive inverters in accordance with embodiments of the invention are disclosed. One embodiment includes input terminals configured to receive a direct current, output terminals configured to provide an alternating output current to the utility grid, a controller, an output current sensor, and a DC-AC inverter stage comprising a plurality of switches controlled by control signals generated by the controller. In addition, the controller is configured to: generate control signals that cause the switches in the DC-AC inverter stage to switch a direct current in a bidirectional manner; measure the alternating output current; perform frequency decomposition of the output current; and generate control signals that cause the switches in the DC-AC inverter stage to switch current in a way that the magnitude of a plurality of unwanted current components is subtracted from the resulting output current.

Abstract: A mobile pressure washer can include a wheeled chassis, a power plant supported by the wheeled chassis, a fluid pump a fluid pump coupled to and driven by the power plant, a sprayer in fluid communication with the pump, a chemical solution container, and a container holder for supporting the chemical solution container. In some examples, the container holder has a frame operably connected to the wheeled chassis and has a container support mounted to the frame, the container support including a base wall and a sidewall defining a receptacle for receiving and supporting a container in fluid communication with the pump.

Abstract: There is provided a light switch system having a housing and a controller secured to the housing. The controller is to control a light source to generate a light output based on a demanded output. The light source is to illuminate at least a portion of an operational volume. The light switch system also has an occupancy sensor communicatively coupled to the controller. The occupancy sensor is to generate an occupancy indicator to indicate whether the operational volume is occupied. Moreover, the light switch system has a functional module communicatively coupled to the controller. In addition, the controller is to divert power from the light source to the functional module by controlling the light source to a the light output to produce an altered light output based on the occupancy indicator.

Abstract: A deck height control system for use with a mower that has a deck positioned at a first height and is configured to support a blade motor. The control system includes an actuator that may be configured to vertically displace the deck from the first height to a second height. A deck system module may connect to the actuator and be capable of signaling the actuator, during operation, to displace the deck a particular deck distance in a particular vertical direction necessary to achieve the second height. The deck system module may further have a deck height memory capable of storing information relating to deck displacement activity. A control may connect to the deck system module and be capable of signaling the particular deck distance and particular vertical direction to the deck system module when engaged by an operator. A battery-operated mower may include the deck height control system.

Abstract: A method of operating a forced induction gaseous-fueled engine includes mixing gaseous-fuel and engine intake air to form a mixture at a fuel mixer. The method includes delivering the mixture to an intake manifold by at least partially bypassing a charge air cooler.

Abstract: A blower includes a motor mounted to a frame. The frame includes wheels mounted to the frame. The blower includes a fan powered by the motor and a blower outlet. The fan is configured to expel air from the fan through the blower outlet. The blower outlet is movable in a horizontal direction and a vertical direction. The blower includes a horizontal control for controlling a horizontal position of the blower outlet. The blower includes a vertical control for controlling a vertical position of the blower outlet. Both the horizontal and vertical controls are positioned remote from the blower outlet.

Abstract: The present disclosure relates generally to debris collection machines configured to deposit collected debris directly into a disposable collection bag. The machine can include a collection assembly in communication with a vacuum assembly. The collection assembly can include a support frame being sized and shaped to receive a collection bag. The assembly can also include a cover having a permeable member and a clamping section, the cover being connected to the outlet of the vacuum assembly and connected to the clamping section. The cover can have an open position and a closed position, wherein, when in the closed position the clamping section secures a portion of the collection bag between the clamping section and the support frame.

Abstract: A battery module includes features to optimize cooling while providing electrical isolation and cell gas-venting channels. The battery module can include the integration of a heatsink in order to improve thermal performance. Thermally conductive pads can be provided to create an electrically isolated interface between a plurality of series-connected battery-cell lead plates, at different potentials, and the heatsink. Optimization, by stacking thin and thick thermally conductive pads, allows for creation of gas-venting channels along the positive cell terminal locations. In some arrangements, a plurality of fluid paths are disposed between the inlet and the outlet of the battery module to provide heat convective airflow through the battery module.