FAN ASSEMBLIES HAVING VARIABLE PITCH

Brand Owner (click to sort) Address Description
AUTO-VARIABLE HUDSON PRODUCTS CORPORATION 9660 Grunwald Road Beasley TX 77417 FAN ASSEMBLIES HAVING VARIABLE PITCH FAN BLADES FOR USE IN HEAT EXCHANGERS;
AUTO-VARIABLE Hudson Engineering Corporation 801 North Eldridge Houston TX 77049 fan assemblies having variable pitch fan blades for use in heat exchangers;
AUTO-VARIABLE HUDSON PRODUCTS CORPORATION 9660 Grunwald Road Beasley TX 77417 fan assemblies having variable pitch fan blades for use in heat exchangers;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. 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.