A portable blowing device configured for being worn around a neck of a human body, includes two arms each defining an airflow channel therein; and fans received in the arms respectively. The arm includes an inner side wall close to the neck and an outer side wall connected to the inner side wall. The arm includes an air inlet and an air outlet in communication with the airflow channel respectively. The air inlet is arranged at the inner side wall and/or the outer side wall. The fan is configured to generate an airflow passing through the air inlet, the airflow channel and the air outlet in sequence.

A fan assembly, a power supply device, and a method for manufacturing a power supply device. The present application provides a fan assembly, including: airst mounting member provided with a first opening; a second mounting member provided with a second opening; a flexible connecting sleeve having a first end connected to the first mounting member and a second end connected to the second mounting member, the flexible connecting sleeve being configured to communicate the first opening with the second opening; and a fan, which is arranged within the flexible connecting sleeve and is configured to promote flow of gas from the first opening to the second opening. The fan assembly is connected between an element compartment and an air duct, can adapt to a mounting error, connects the element compartment to the air duct in a sealed manner, and has a good tolerance.

An assembly that includes a planar surface, a plurality of first features disposed on the planar surface and a plurality of second features disposed on the planar surface. Each second feature is associated with one of the first features and a fan module coupled to one of the first features and the associated second feature.

An exemplary fuel cell system includes a cell stack assembly having a plurality of cathode components and a plurality of anode components. A first reactant blower has an outlet situated to provide a first reactant to the cathode components. A second reactant blower has an outlet situated to provide a second reactant to the anode components. The second reactant blower includes a fan portion that moves the second reactant through the outlet. The second reactant blower also includes a motor portion that drives the fan portion and a bearing portion associated with the fan portion and the motor portion. The motor portion has a motor coolant inlet coupled with the outlet of the first reactant blower to receive some of the first reactant for cooling the motor portion.

An information handling system includes a vibration source, a vibration sink, and a damping seal. The damping seal includes a top surface and a bottom surface. The top surface may be placed in physical communication with the vibration source. The bottom surface may be placed in physical communication with the vibration sink. The damping seal may be compressed in between the vibration source and the vibration sink. The compression of the damping seal in between the vibration source and the vibration sink may provide an airflow seal within the information handling system. The damping seal may be molded from a semi-rigid material to provide vibration damping from the vibration source to a vibration sensitive component of the information handling system.

A fan arrangement has a plurality of fans arranged in parallel to each other and configured to generate airflow along a common main flow direction. A flow channel is assigned to each fan, and a respective flow channel has a flap that can be swiveled between an open position and a closed position. The flap is constructed and positioned within the flow channel in such a way that it is supported by the airflow in the open position and brought into the closed position by a reverse flow opposing the airflow. This arrangement reliably prevents a fluidic short circuit in the event of failure of individual fans, and ensures natural draft convection in the event of failure of all fans. The flap is constructed in such a way that it is brought into the open position when no air is flowing due to its intrinsic weight.

A dual-shaft built-in pump includes a main body, provided with an air inlet and an air outlet; a motor cover, provided with an accommodating cavity having an air inflation vent and an air deflation vent; two valve bodies; a first fan blade, located between the air inflation vent and the air inlet; a second fan blade, located between the air deflation vent and the air outlet; a dual-shaft motor, configured in the accommodating cavity and having an output shaft connected with the first fan blade and the second fan blade; and a rotating member, rotatably provided on the main body and configured to drive either of the two valve bodies thereby opening the air inlet or the air outlet. The pump has simple structure, convenient fabrication and low cost.

In one aspect, a fan array fault response control system is provided for a cooling tower. The fan array fault response control system includes a fan interface configured to be in communication with a plurality of fans of the cooling tower and a processor operably coupled to the fan interface. The processor is configured to detect at least one non-operational fan of the plurality of fans. The processor configured to effect, in response to detecting the at least one non-operational fan, a reduced fan speed of at least one operational fan of the plurality of fans.

A frame assembly for holding cooling fans without the use of screws or rivets includes a bottom plate, a frame on the bottom plate, a slider on the frame, a position pin, and a sliding pin. The frame comprises first and second plates, the first plate defining first and second slots extending in different directions. An end of the sliding pin is connected to the slider, other end of the sliding pin is movable within the second slot, and the slider defines a third slot. The orientation of the second slot is such that pushing the assembly against a spring releases the clamping action of the first and second plates on the assembled fans, and releasing the first and second plates allows the fans in the assembly to be reclamped.

The present disclosure provides an air pump device, including a housing; a high-pressure air pump, a low-pressure air pump and a public pipeline are arranged in the shell; the high-pressure air pump is a reciprocating air pump, and includes a motor, a piston tube and a piston; the piston is arranged in the piston tube; the motor is used for driving the piston to move in the piston tube; an output shaft of the motor is perpendicular to an axial direction of the piston tube; an air outlet end of the piston tube is connected with the public pipeline, and the piston tube and the public pipeline are parallel or located on the same straight line; the low-pressure air pump is a blowing-type air pump, and includes a shell and a fan assembly.