First and second towers may discharge air. An airflow guide or converter may change a direction of the air discharged from the first tower and the second tower by moving a gate inside and outside of at least one of the first or second towers so as to block discharged air flowing forward and selectively facilitate an upward air flow. The airflow converter may include a guide motor to provide a driving force, the gate, which may reciprocate between the inside and the outside of the first and/or second towers; and a board guider connected to the gate to transmit a driving force of the guide motor to the gate as a linear motion force.

A blower includes a fan and a motor, wherein the motor includes a shaft, a bearing that supports the shaft, and a motor case that covers at least a part of the bearing, the fan includes a main plate having a first surface facing the motor case and a second surface opposite to the first surface, and connected to the shaft, and a plurality of blades erected on the second surface of the main plate, and arranged radially with respect to an axis of the shaft, at least one of the fan and the motor case includes blocking members, and each of the blocking members is located apart from the shaft between the first surface of the main plate and the motor case, and surrounds the shaft.

Provided is a fan, which comprises a body, the body comprises a first air inlet, a second air inletan air outlet, and a fan motor for generating an air flow passing through the body, wherein the first air inlet and the second air inlet are arranged at interval in a first direction; a nozzle, which is connected with the air outlet and used for receiving the air flow from the body and ejecting the air flow; and a filter, which is arranged in a region between the first air inlet and the second air inlet, in the body, and disposed downstream of the air inlet. The fan makes the air pass through the filter more evenly, prolongs the life of the filter, reduces filter replacements, reduces the cost of the air purifier, and is more conducive to the improvement of the indoor environment and provides a cleaner living environment.

A fan is provided, including: a body including a fan motor unit, which includes an impeller, a motor and an air-output three-way seat and a nozzle connected to an air outlet of the body, wherein the nozzle receives the airflow from the body and emit the airflow, the nozzle includes a nozzle body in a shape of half a frame; the air-output three-way seat includes at least one air inlet, a first air outlet, a second air outlet, and an air-splitting wall body for splitting the airflow passing through the air inlet and then guiding the airflow to the first air outlet and the second air outlet, respectively. The fan changes the moving direction of the airflow therein, and decreases the entire height and volume.

The present invention relates to a fruit or vegetable shaped fan for dispersing airborne eye irritants that are released during cutting fruits or vegetables. The fan includes a base that is wedge-shaped, an air inflow collimator that is fruit or vegetable shaped having an open front end, an internal frame that is configured to provide minimal abatement to airflow through the air inflow collimator, a motor mount that secures a motor, a fan blade that attaches to the motor, and a grill that attaches to the open front end of the air inflow collimator. The fan is configured to disperse airborne eye irritants away from a user's eyes. Airborne eye irritants are released when certain fruits and vegetables are chopped or otherwise cut. Such fruits and vegetables that can release airborne eye irritants when cut include onions, peppers, and certain other fruits and vegetables.

An air cleaner includes a fan that is configured to suck air in an axial direction and discharge air between the axial direction and a radial direction. The air cleaner further includes a fan motor that is configured to rotate the fan. The air cleaner further includes an air guide unit that includes a cylindrical outer wall and an inner wall that is located in a center portion of the outer wall and that defines a space that is configured to receive the fan motor. The air guide unit defines an annular air flow path that is configured to receive air discharged by the fan and that is defined by an inner circumferential surface of the outer wall and an outer circumferential surface of the inner wall. The air guide unit further includes a plurality of guide ribs. The air guide unit further includes a plurality of flow guide protrusions.

An attachable air filter medium for attachment to a conventional circulation fan is disclosed comprising a netting fabric filter medium being adapted to fit over the rear half of the conventional circulation fan's housing for filtering dust particles in air coming into the circulation fan preventing dust buildup on the fan blade thus eliminate the need to periodically clean the fan.

A fan-equipped heatsink includes: a heat receiving substrate made of metal; a centrifugal fan disposed on an upper surface side of the heat receiving substrate; a plate-shaped wall that is made of metal, is provided so as to stand at a position, on the upper surface of the heat receiving substrate, which is around and opposed to an outer peripheral portion having an air discharge opening of the centrifugal fan, and are provided with a plurality of through-holes that are open in a plate surface opposed to the centrifugal fan; and a lid member fixed to an upper end of the plate-shaped wall 4 and configured to close a space on the inner side of the plate-shaped wall.

A counter-rotating fan, comprising an impeller assembly and an air guide structure. The impeller assembly comprises a first stage impeller and a second stage impeller, of which the rotation directions are opposite. The pressure surfaces of first blades of the first stage impeller are configured to be opposite the suction surfaces of second blades of the second stage impeller, and from the blade root to the blade tip, each of the first blades and the second blades bends toward its own rotation direction. The air guide structure comprises a flow guide cover. The flow guide cover is provided at the center position of the air intake side of the first stage impeller, and the air intake side surface of the flow guide cover at least partially forms a flow guide surface, the flow guide surface extending along the axis of the first stage impeller in the direction away from the counter-rotating fan.

An adaptor is disclosed for connecting a rotating electrical machine 12 to a prime mover 10. The adaptor comprises at least one air outlet. The adaptor is arranged to provide an increase in a cross-sectional area of air flow towards the outlet. In this way part of the dynamic pressure can be converted into additional static pressure rise through steady expansion of the air flow cross-section. This in turn may help to improve the overall amount of cooling air passing through the machine for a given fan input power.