With diagonals fans, the conical shape of the impeller and housing results in greater compression of the intake air. The outstanding feature of this type of fan as compared to axial fans of the same size and offering similar performance is a far lower operating noise level at high pressures. The most important characteristic of a diagonal fan is its conical rotor hub. A diagonal fan to a large extent also sucks in the air axially. The hub that is shaped like the surface of a cone has a small cross-section in the area of the inlet. On the delivery side the diameter increases.
Axial Fans. AC Fans. DC Axial Fans. EC Axial Fans. Micro Fans. Backward-Curve Centrifugal Fans. Cross Flow Fans. Duct Fans & Accessories. Forward-Curve Centrifugal Fans. Frameless Fans. Axial Fans: These fans look like propellers and draw air straight through the fan. Centrifugal fans: These fans look like “squirrel cages” that draw air into the centre of the fan and exhaust it at a 90-degree angle. A fan is a power-driven machine used to move a volume of gas. In other words, a fan is an air moving device. In its simplest form, a fan comprises a motor, a fan housing and a rotating impeller.
The rotation mechanism of the ceiling fan is built in way so as to attract the warm air upwards. As the hot air rises up, the blades of the fan slice this air and push it down. This being a continuous process causes the air in the room to circulate in the entire room. Thus, a ceiling fan only moves the air around. A fan is a powered machine used to create a flow of air. A fan consists of a rotating arrangement of vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner.
