Temperature compensated flow control vavle

Claim 1

IN A TEMPERATURE COMPENSATED FLOW CONTROL VALVE, THE COMBINATION OF: MEANS FORMING A MAIN FLOW PASSAGE HAVING AN INLET AND AN OUTLET, MEANS FORMING A METERING ORIFICE IN SAID PASSAGE, A MOVABLE THROTTLING MEANS MOVABLE ACROSS AND CONTROLLING SAID MAIN FLOW PASSAGE, A SPRING ACTING ON SAID THROTTLING MEANS TO MOVE IT IN A DIRECTION TO OPEN SAID PASSAGE, A MOVABLE PRESSURE DIFFERENTIAL RESPONSE MEANS OPERATIVELY CONNECTED TO SAID THROTTLING MEANS AND INCLUDING FIRST AND SECOND OPPOSED SURFACES ADAPTED FOR EXPOSURE TO FLUIDS UNDER PRESSURE, SAID SURFACES BEING SO ARRANGED THAT PRESSURE FLUID ACTING ON SAID FIRST SURFACE TENDS TO MOVE SAID PRESSURE DIFFERENTIAL RESPONSE MEANS AND THROTTLING MEANS TO CLOSE SAID MAIN FLOW PASSAGE, AND PRESSURE FLUID ACTING ON SAID SECOND SURFACE TENDS TO MOVE SAID RESPONSE MEANS AND THROTTLING MEANS TO OPEN SAID MAIN FLOW PASSAGE, MEANS FORMING FIRST AND SECOND FLUID CHAMBERS IN COMMUNICATION WITH SAID OPPOSED FIRST AND SECOND SURFACES, RESPECTIVELY, MEANS INTERCOMMUNICATING SAID FIRST FLUID CHAMBER WITH SAID MAIN FLOW PASSAGE AT A POINT UPSTREAM OF SAID METERING ORIFICE, MEANS FORMING A FLUID PASSAGEWAY INTERCOMMUNICATING SAID FIRST AND SECOND FLUID CHAMBERS, THERE BEING A DYNAMIC FLUID FLOW ORIFICE IN SAID PASSAGEWAY, MEANS FORMING A FLUID PASSAGEWAY INTERCOMMUNICATING SAID SECOND FLUID CHAMBER WITH SAID MAIN FLOW PASSAGE AT A POINT WHICH IS ON THE SAME SIDE OF SAID THROTTLING MEANS AS SAID METERING ORIFICE AND WHICH IS DOWNSTREAM OF SAID METERING ORIFICE.