Trickle rate fluid outlet

Abstract

Abstract 1. IN A DEVICE OF THE CHARACTER DESCRIBED FOR RELEASING A FLUID FOR A PRESSURIZED SOURCE AT A LOW RATE, THE COMBINATION OF: AN UPRIGHT VALVE CAGE HAVING AN INNER WALL FORMING AN UPRIGHT PASSAGE FOR FLUID FLOW THERETHROUGH WITH AN INLET PORT AT THE BOTTOM END OF THE PASSAGE TO RECEIVE FLUID FROM THE SOURCE AND AN OUTLET PORT AT THE UPPER END OF THE PASSAGE, EACH OF SAID PORTS BEING FORMED WITH AN INNER VALVE SEAT, AND A VALVE MEMBER IN SAID PASSAGE TO SEAT IN THE TWO VALVE SEATS ALTERNATELY, SAID VALVE MEMBER BEING BIASED GRAVITATIONALLY TOWARDS SAID INLET SEAT, SAID VALVE MEMBER BEING SMALLER IN CROSS SECTION THAN THE CROSS SECTION OF THE PASSAGE TO PERMIT INITIAL FLUID FLOW THROUGH THE PASSAGE TO SWEEP PAST THE VALVE MEMBER, SAID VALVE MEMBER BEING OF A CROSS SECTION TO RESPOND TO THE DYNAMIC PRESSURE OF THE FLUID FLOWING THROUGH THE PASSAGE TO MOVE TO THE VALVE SEAT OF THE OUTLET PORT IN RESPONSE TO RISE IN THE RATE OF THE FLUID FLOW, WHEREBY PLACING THE INLET PORT IN COMMUNICATION WITH THE PRESSURIZED SOURCE RESULTS, FIRST, IN UNSEATING OF THE VALVE MEMBER TO OPEN THE INLET PORT, SECOND, INITIAL FLUID FLOW PAST THE VALVE MEMBER TO FLUSH OUT THE VALVE CAGE, THIRD, MOVEMENT OF THE VALVE MEMBER INTO THE VALVE SEAT OF THE OUTLET PORT AND, FOURTH, RETENTION OF THE VALVE MEMBER IN THE SEAT OF THE OUTLET PORT BY THE PRESSURE DIFFERENTIAL ACROSS THE OUTLET PORT AS LONG AS THE CAGE REMAINS IN COMMUNICATION WITH THE PRESSURIZED SOURCE, SAID VALVE CAGE HAVING A MINUTE PASSAGE BY-PASSING THE SEAT IN THE OUTLET PORT FOR DISCHARGE FLOW FROM THE CAGE WHEN THE VALVE MEMBER IS SEATED IN THE VALVE SEAT OF THE OUTLET PORT, AND MEANS DEFINING AT LEAST ONE DISCHARGE PASSAGE HAVING A PORTION SPACED RADIALLY OUTWARD FROM THE INNER CIRCUMFERENTIAL SURFACE OF THE VALVE CAGE, SAID DISCHARGE PASSAGE LEADING DOWNWARDLY FROM THE OUTLET PORT AND THE BY-PASS PASSAGE.

Inventors

• 👤 T Todd

Bibliographic Details