Control apparatus

Claim 1

A PROPORTIONAL THERMODYNAMIC FLUID AMPLIFIER COMPRISING: A SUPPLY NOZZLE ADAPTED TO BE CONNECTED TO A FLUID SOURCE, SAID SUPPLY NOZZLE OPERABLE TO PROVIDE A STREAM OF FLUID SUBSTANTIALLY ALONG AN AXIS; A CHAMBER, SAID NOZZLE BEING IN COMMUNICATION WITH SAID CHAMBER; A CONTROL PASSAGE ADAPTED TO BE CONNECTED TO A FLUID SOURCE, SAID CONTROL PASSAGE BEING IN COMMUNICATION WITH SAID CHAMBER; FIRST MEANS POSITIONED WITHIN SAID PASSAGE FOR MAINTAINING A SUBSTANTIALLY CONSTANT FLUID MASS FLOW THERETHROUGH; THERMODYNAMIC MEANS POSITIONED WITHIN SAID PASSAGE INTERMEDIATE SAID FIRST MEANS AND SAID CHAMBER, SAID THERMODYNAMIC MEANS BEING OPERABLE TO ADD HEAT TO THE FLUID WITHIN SAID CONTROL PASSAGE BETWEEN SAID CHAMBER AND SAID FIRST MEANS SO AS TO INCREASE THE MOMENTUM OF THE FLUID, THE INCREASE IN MOMENTUM BEING EFFECTIVE TO DEFLECT THE STREAM OF FLUID FROM SAID AXIS; AND AN OUTLET PASSAGE, SAID OUTLET PASSAGE BEING POSITIONED TO RECEIVE THE STREAM OF FLUID, THE FLOW RATE WITHIN SAID OUTLET PASSAGE BEING INDICATIVE OF THE AMOUNT OF HEAT ADDED TO THE FLUID IN SAID CONTROL PASSAGE BY SAID THERMODYNAMIC MEANS.