Fluid meter

Abstract

Abstract A FLUID METER OF THE POSITIVE DISPLACEMENT TYPE COMPRISING AN OUTER CASING, A MEASURING CHAMBER UNIT DEFINING A MEASURING CHAMBER MOUNTED IN THE CASING, FLUID INLET AND OUTLET PORTS COMMUNICATING WITH THE MEASURING CHAMBER AND A PISTON ASSEMBLY MOUNTED IN THE MEASURING CHAMBER OPERABLE TO BE DISPLACED UPON FLOW OF FLUID THERETHROUGH, THE PISTON ASSEMBLY BEING OPERATIVELY CONNECTED WITH INDICATOR MEANS TO INDICATE AT LEAST RATE OF FLUID FLOW THROUGH THE METER. IN THE ILLUSTRATED FORM OF THE INVENTION, THE PISTON ASSEMBLY COMPRISES A NUTATING DISC WHICH IS MOUNTED ON A SMALL BALL PIVOT, THE PISTON ASSEMBLY PREFERABLY HAVING APPROXIMATELY THE SAME SPECIFIC GRAVITY AS THE FLUID BEING METERED THEREBY TO IMPROVE THE ACCURACY OF THE METER. THE FLUID METER MAY INCLUDE A COMPENSATOR PORT PROVIDING DIRECT COMMUNICATION BETWEEN THE INLET AND OUT LET PORTS, THE FLOW AREA OF WHICH MAY BE SELECTIVELY VARIED TO PROVIDE A MEANS FOR ACCURATELY CALIBRATING THE METER. OTHER FEATURES OF THE INVENTION INCLUDE MEAS FOR READING FLOW RATE AND TOTAL FLOW AT A REMOTE LOCATION. THE MEANS FOR REMOTELY READING THE FLOW RATE MAY INCLUDE A LEVER CONNECTED TO THE INDICATOR MEANS, A SPRING BIASED FLAPPER ADAPTED TO BE PIVOTED BY THE LEVER UPON CHANGES IN RATE OF FLOW, A NOZZLE HAVING A DISCHARGE OPENING CONFRONTING THE FLAPPER CONNECTED THROUGH A PNEUMATIC LINE TO A REMOT READ-OUT FOR SENSING PRESSURE CHANGES IN THE NOZZLE TIP.

Inventors

• 👤 Andrew Varga

Bibliographic Details