Patent ID: 9273798
Filing Date: 2016-03-01
CPC Classification: E03C,F16K

Claim Text:
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 relief valve adapted for being sealedly disposed within said fluid chamber in an immovable manner with a diaphragm-less configuration for sealing a flow of fluid flowing from said fluid inlet to said fluid outlet, wherein said relief valve comprises: a fluid passage for controlling a flow rate of said fluid passing from said fluid chamber to said fluid outlet; a valve stopper which is normally retained at a closed position to seal and close said fluid passage for controlling said fluid flowing from said fluid chamber to said fluid outlet, wherein said valve stopper is moved from said closed position to an opened position to unseal said fluid passage for allowing said fluid passing to said fluid outlet through said fluid passage, wherein said valve stopper is moved back to said closed position from said opened position to re-close said fluid passage for blocking said fluid passing to said fluid outlet; and a resilient element coupling with said valve stopper for applying an urging force against said valve stopper so as to retain said valve stopper at said closed position; and an actuator, wherein a diameter of an passage opening of said fluid passage is smaller than a diameter of said fluid chamber, wherein said relief valve further comprises a valve controlling shaft having a tubular structure and defining said fluid passage therealong, wherein said valve controlling shaft is immovably sealed at said fluid chamber to prevent a relative movement of said valve controlling shaft with respect to said valve chamber, wherein said relief valve further comprises a sealing O-ring sealed around an outer surrounding wall of said valve controlling shaft for sealing and coupling within said fluid chamber, wherein said relief valve further comprises a sealing platform formed on top of said valve controlling shaft to define said passage opening of said fluid passage at said sealing platform, and a sealing ring provided at said sealing platform around said passage opening of said fluid passage, wherein said valve stopper is sat on said sealing ring to seal at said passage opening of said fluid passage, wherein said resilient element is supported along said fluid passage to couple with said valve stopper, wherein said actuator is driven to move said relief valve between said closed position and said opened position, wherein said actuator is non-coaxially extended to said fluid passage towards said valve stopper and arranged in such a manner that when said actuator is driven to move, said actuator is driven to slide said valve stopper to unseal said fluid passage.