A fluid pump assembly is used in combination with a container having a wall. The pump assembly comprises a first casing disposed outside the container in contact with the wall, a first magnetic assembly mounted to the first casing and operatively associated with a drive motor, a second casing disposed inside the container in contact with the wall, and a second magnetic assembly mounted to the second casing and operatively associated with an propeller. The first magnetic assembly includes a rotatable magnetic drive member drivingly coupled to the drive motor. The magnetic drive member is magnetically coupled to the magnetic driven member through the wall for imparting a rotary driving force of the drive motor to the propeller. Furthermore, the second casing is detachably connected to the second side of the wall of the container solely by magnetic attraction force between the first and second magnetic assemblies.

A detection system configured to detect water in a fan case includes a heater, a monitoring camera, and a computing device. The heater is configured to apply heat to the fan case. Any water within the fan case generates a local transient thermal gradient in response to the applied heat. The monitoring camera is positioned proximate the fan case and configured to acquire a plurality of images of the heated fan case. The computing device is configured to: receive the plurality of images from the monitoring camera and analyze the plurality of images to detect the water in the fan case.

A detection system configured to detect water in a fan case includes a heater, a monitoring camera, and a computing device. The heater is configured to apply heat to the fan case. Any water within the fan case generates a local transient thermal gradient in response to the applied heat. The monitoring camera is positioned proximate the fan case and configured to acquire a plurality of images of the heated fan case. The computing device is configured to: receive the plurality of images from the monitoring camera and analyze the plurality of images to detect the water in the fan case.

Provided is an outer enclosure for a turbo blower in which a turbo blower is installed, which includes a housing forming an exterior of the outer enclosure, an outside air inflow chamber which is a space partitioned in one side inside the housing and which communicates with the outside through an outside air inlet, an inverter chamber which is a space partitioned in the other side inside the housing, a motor chamber which is a space partitioned in an upper portion of a space positioned between an inverter chamber and the outside air inflow chamber, and in which a turbo blower including an intake nozzle communicating with the outside air inflow chamber is positioned, and a first refrigerant discharge port is positioned on one side, a refrigerant inflow chamber which is a space in a lower portion of the motor chamber and which communicates with the outside through a refrigerant inlet, in which the upper and lower portions of the inverter chamber are in communication with the motor chamber and the refrigerant inflow chamber, respectively, and the refrigerant inflow chamber is communication with the motor chamber.

Wind baffles are provided at a side discharge vent of a cabinet containing a heating, ventilation, air conditioning, and refrigeration (HVACR) system. The wind baffles include two or more baffles joined to a support frame. The baffles have a leading edge towards ambient environment surrounding of the cabinet and a trailing edge towards an interior of the cabinet, and the leading edge has a perimeter greater than a perimeter of the trailing edge. The baffles may surround each successive baffle. The baffles may be concentric The wind baffles may be located between ambient environment surrounding of the cabinet and a fan near the side discharge vent. The fan may be a variable-speed fan.

A controller includes: a control unit configured to calculate a control command value of an opening degree of a solenoid valve to control an opening degree of the solenoid valve; and an acquisition unit configured to acquire an estimated amount and a target amount of a working fluid in a labyrinth chamber, and a rotation speed of a drive shaft. The control unit calculates a final control command value based on a feedback control command value and a feedforward control command value, and controls the solenoid valve, the feedback control command value being calculated based on deviation between the estimated amount and the target amount, the feedforward control command value being used to maintain a rotation speed of a fan constant based on the estimated amount and the rotation speed of the drive shaft.

A blower is provided that may include a fan that creates airflow; a lower body forming an inner space in which the fan may be installed, and having at least one suction hole through which air passes; an upper body positioned above the lower body and including a first upper body forming a first inner space that communicates with the inner space of the lower body, and a second upper body forming a second inner space that communicates with the inner space of the lower body and spaced apart from the first upper body; a space formed between the first upper body and the second upper body and opened in a frontward-rearward direction; a first opening formed through a first boundary surface of the first upper body facing the space; a second opening formed through a second boundary surface of the second upper body facing the space; and a door assembly including a first door installed at the first upper body and that opens and closes the first opening, and a second door installed at the second upper body and that opens and closes the second opening.

The utility model relates to a household submersible pump, which comprises a pump base, a pump body and a signal light assembly, wherein the pump base is provided with a water outlet, a water inlet and a first filter screen; the pump body has an inner housing having an inner electrical chamber equipped with a circuit board therein and a front mount, and an outer housing having a front guiding seat; the signal light assembly comprises a signal light connected to the circuit board and a light guiding column with a waterproof seal ring embedded therein; the light guiding column is able to be rotated from a first state in which it can be inserted into the front mount through the front guiding seat to a second state in which it is locked in the front mount, and is set to be able to export the light emitted from the signal light to the outside of the outer housing. The utility model not only achieves an outward propagation of light to indicate the status of the pump but also achieves an IPX8 level waterproof.

A sump pump irrigation assembly for reducing water erosion from a sump pump outlet includes a plurality of fluid fittings. A respective one of the fluid fittings is fluidly coupled to an outlet of a sump pump to receive water from the outlet. A supply pipe is fluidly coupled to the fluid fitting that is fluidly coupled to the outlet to receive the water from the fluid fitting. A plurality of drainage pipes is each of the drainage pipes is in fluid communication with the supply pipe to receive the water from the supply pipe. Each of the drainage pipes has a plurality of holes therein to release the water outwardly therefrom. A plurality of cleanout fittings is each fluidly coupled between a respective pair of the drainage pipes. Each of the cleanout fittings has an access port to facilitate debris to be removed from the cleanout fittings.

A compressor has a stator assembly, a rotor assembly, and a housing within which the stator assembly and the rotor assembly are located. The housing has a first end, a second end, and an air inlet disposed between the first and second ends. The compressor has a flow guide disposed within the air inlet. The flow guide is configured to split air flowing through the air inlet in use into a first airflow toward the first end of the housing and a second airflow toward the second end of the housing.