VARIABLE PITCH CONTROL BLOWERS FOR

Brand	Owner	Address	Description
AXICO	HOWDEN AXIAL FANS AB	KVARNVAGEN VAXJO 351 87 Sweden	VARIABLE PITCH CONTROL BLOWERS FOR REGULATING AIR FLOW;VENTILATORS;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Pitch control of a variable pitch fan is obtained using pulsed pressure. Pitch is varied incrementally either towards or away from full pitch by pulsed application of fluid to a piston used to drive the blades of the fan into or away from full pitch. Reverse pitch is used to clear debris from the fan. Valves control flow of fluid to the piston. The valve operation is controlled by a controller.