Fluid control system

Claim 1

A FLUID CONTROL SYSTEM FOR MAINTAINING A DESIRED VALUE OF A SELECTED SYSTEM PARAMETER COMPRISINGA FLUID AMPLIFIER COMPRISING A FIRST FLUID PASSAGE TERMINATING IN A FIRST FLUID FLOW RESTRICTOR FOR GENERATING A MAIN FLUID JET TO BE CONTROLLED A PAIR OF FLUID RECEIVER FOR MEANS DOWNSTREAM FROM SAID FIRST RESTRICTOR FOR RECEIVING FLUID FROM THE MAIN JET, AND A PAIR OF SECOND FLUID PASSAGES TERMINATING IN OPPOSITELY DISPOSED SECOND FLUID FLOW RESTRICTORS FOR GENERATING CONTROL FLUID JETS TO CONTROLLABLY DEFLECT THE MAIN JET RELATIVE TO SAID RECEIVER MEANS, FIRST MEANS IN FLUID COMMUNICATION WITH THE INPUT TO A FIRST AND SECOND FLUID PASSAGES FOR GENERATING A FIRST PULSATING FLOW OF CONTROL FLUID HAVING A MAGNITUDE OF FLOW RESPONSIVE TO DEVIATIONS OF SAID SYSTEM PARAMETER ABOVE THE DESIRED VALUE, SECOND MEANS IN FLUID COMMUNICATION WITH THE INPUT TO A SECOND OF SAID SECOND FLUID PASSAGES FOR GENERATING A SECOND PULSATING FLOW TO CONTROL FLUID HAVING A MAGNITUDE OF FLOW RESPONSIVE TO DEVIATIONS OF SAID SYSTEM PARAMETER BELOW THE DESIRE VALUE, AND MEANS IN FLUID COMMUNICATION WITH SAID RECEIVER MEANS FOR RESTORING SAID SYSTEM PARAMETER TO THE DESIRED VALUE.