Patent ID: 8464998
Filing Date: 2013-06-18
Classification: E03C,E03D,F16K,Y10T

Abstract:
1. An automate fluid flow control system for a fluid system having a fluid inlet, a fluid outlet, and a fluid chamber communicating between said fluid inlet and said fluid outlet, wherein said automate fluid flow control system comprises: a valve member adapted for being sealedly disposed within said fluid chamber to seal a flow of fluid flowing from said fluid inlet to said fluid outlet; a relief valve provided at the valve member for controlling said fluid flowing from said fluid chamber to said fluid outlet, wherein said relief valve has a fluid passage extended along said valve member for communicating said fluid chamber with said fluid to outlet and comprises a valve stopper movably sitting at a top opening of said fluid passage to sealedly close said fluid passage for controlling said fluid flowing to said fluid outlet; and a powering assembly comprising: a housing supported above said valve member, wherein said housing has a power source compartment and a sliding slot coaxially aligned with said fluid passage, wherein said valve stopper is slidably coupled at said sliding slot to slidably guide said valve stopper to move between said closed position and said opened position, wherein said sliding slot has a top closed end that said power source compartment forms a water sealed compartment for preventing said fluid entering into said power compartment; a power generator received in said housing; and an actuator driven by said power generator to move said relief valve between a closed position and an opened position, wherein at said closed position, said valve stopper is sealedly retained to close said top opening of said fluid passage for blocking said fluid passing to said fluid outlet, and at said opened position, said actuator drives said valve stopper to unseal said top opening of said fluid passage for releasing a pressure within said fluid chamber to allow said fluid passing to said fluid outlet, wherein said actuator comprises a magnetic means for generating a magnetic force to upwardly lift said valve stopper at said opening position and a resilient means for generating a resilient force to downwardly drop said valve stopper, wherein said magnetic means comprises a first magnetic element provided at said valve stopper and a second magnetic element concealed in said power source compartment to magnetically couple with said first magnetic element, wherein said first and second magnetic elements are two permanent magnets respectively such that when said first and second magnetic elements are aligned with unlike poles, said first magnetic element is magnetically attracted with said second magnetic element to move said valve stopper to said opened position, wherein said resilient means comprises a resilient element supported within said sliding slot at a position that an upper end of said resilient element is biased against said top closed end of said sliding slot while a lower end of said resilient element is biased against said valve stopper, wherein said valve stopper is upwardly lifted at said opened position by said magnetic force, wherein said valve stopper is downwardly dropped back to said closed position by said resilient force while said magnetic force is disappeared, wherein said resilient element not only applies a downward pushing force to said valve stopper to ensure said valve stopper sealing at said top opening of said fluid passage but also guides a sliding movement of said valve stopper along said sliding slot to ensure said valve stopper aligned with said top opening of said fluid passage when said valve stopper is moved between said closed position and said opened position.