Patent ID: 8091856
Filing Date: 2012-01-10
Classification: E03C,F16K,Y10T

Abstract:
1. A method of controlling volume of fluid used in each sensor-operated fluid flowing cycle of a fluid system comprising an automated fluid flow control system, comprising the steps of: (a) normally blocking fluid flowing from a fluid inlet to a fluid outlet through a fluid passage of said fluid system by means of a relief valve of said automated fluid flow control system setting and sitting at an auto-operated closed position; (b) starting said fluid flowing cycle of said fluid system by allowing fluid flowing from said fluid inlet to said fluid outlet through said fluid passage of said fluid system through said automated fluid flow control system by means of an actuator which contacts with an engaging surface of said relief valve and is arranged to dislodging said relief valve to define an auto-operated opened position to start said fluid flowing cycle; (c) adjustably controlling a volume of fluid used in said fluid flowing cycle for said fluid system by controlling a time of said fluid flowing cycle; and (d) stopping fluid passing to said fluid outlet by closing said fluid passage until said fluid flowing cycle is started again by returning said relief valve from said auto-operated opened position back to said auto-operated closed position to stop said fluid passing to said fluid outlet; wherein said fluid passage is provided in said relief valve and a valve stopper of said relief valve is arranged to be able to move between said auto-operated closed position to normally close said water passage for stopping said fluid flowing to said fluid outlet and said auto-operated opened position to open said fluid passage for allowing said fluid flowing to said fluid outlet for controlling said fluid flowing from said fluid inlet to said fluid outlet; wherein said actuator comprises a driving arm that physically contacts with said engaging surface of said valve stopper in such a manner that said driving arm and said valve stopper are contacted with each other to move said valve stopper from said auto-operated opened position to said auto-operated closed position; wherein, in the step (b), said valve stopper is moved away from an opening of said fluid passage to open said fluid passage for allowing said fluid flowing from said fluid inlet to said fluid outlet to start said flushing cycle of said flushing system; wherein said driving arm of said actuator is arranged to rotate between two positions for dislodging said valve stopper to move from said auto-operated closed position to said auto-operated opened position and for allowing said valve stopper to sit onto and block said fluid passage from said auto-operated opened position to said auto-operated closed position; wherein, in the step (c), said fluid flowing cycle of said fluid system is controlled by a control processor which is adapted to control said time of said fluid flowing cycle and said fluid volume for each said fluid flowing cycle; wherein said volume of fluid used in each said fluid flowing cycle for said fluid system is controlled through said control processor to control a speed of said actuator so that said volume of fluid used in each said fluid flowing cycle is able to be adjustably controlled by controlling said speed of said actuator, that is a time said actuator driving said valve stopper to stay in said auto-operated opened position, thereby said fluid volume of each said fluid flowing cycle is able to be increased when said control processor delays said driving time of said actuator; wherein said actuator is driven by a power generator; wherein the step (a) further comprises a step of providing an urging force against said valve stopper by a resilient element to normally pull said valve stopper to close said opening of said fluid passage; wherein, in the step (b), said fluid flowing cycle starts in responsive to a presence of a user in front of said fluid system, and wherein in the step (b), said actuator is further arranged to be driven manually between said opened and closed position by the user through a knob connecting to said actuator, whereby such that when said knob is rotated by the user at said closed position to dislodging said relief valve from said closed position to said opened position, said fluid passage is unblocked for allowing said fluid passing to said fluid outlet.