Patent ID: 6461104
Filing Date: 2002-10-08
Classification: F04D,Y10T

Abstract:
A flow regulator for a water pump, comprising a control valve, mounted on an inlet pipe of a water pump, said control valve further comprising:a water flow path passed through by water through said inlet pipe; a control plate inside said control valve, movable in upward and downward directions, having a shutter with a flat shape and an upper part that forms a piston plate, in a lowermost position almost closing said water flow path, and in an uppermost position completely opening said water flow path; a chamber inside said control valve, allowing said shutter to glide therein, and having an upper chamber, accommodating said piston plate; two springs, guided by two bolts which are mounted on two lateral sides of said control plate; two lateral spaces next to two lateral sides of said chamber, accommodating said two springs and said two bolts, with said two springs being restricted from above by said two bolts and from below by lower sides of said lateral spaces; and a water entrance, cut through a top side of said control valve, connecting said upper chamber and a connecting pipe which leads to an outlet pipe of said water pump, so that water pressure in said outlet pipe is transmitted to said upper chamber; wherein water pressure from said outlet pipe drives said control plate to move, countered by a force of said springs, resulting in a varying vertical position of said control plate, a varying opening degree of said water flow path and consequently in a varying flow of water through said water flow path.