Turbine control apparatus

Claim 1

TURBINE CONTROL APPARATUS COMPRISING: A ROTATABLE REACTION WHEEL HAVING A PLURALITY OF PERIPH ERAL BLADES; A FIRST FLUID AMPLIFIER FOR DRIVING SAID WHEEL HAVING AN INLET PORT ADAPTED TO BE CONNECTED TO A SOURCE OF FLUID UNDER PRESSURE, A FIRST OUTLET PORT ORIENTED TO ACT AS A NOZZLE FOR NORMALLY DIRECTING FLUID AGAINST SAID BLADES, A SECOND OUTLET PORT FOR DISCHARGING FLUID REMOTE FROM SAID BLADES, AND A CONTROL PORT WHICH, WHEN ENERGIZED, PROVIDES A FLUID CONTROL SIGNAL TO INTERRUPT THE NORMAL FLOW OF FLUID THROUGH SAID FIRST OUTLET PORT AND INITIATE FLOW OF SAID FLUID THROUGH AND SECOND OUTLET PORT; MEAND FOR PRODUCING A TRAIN OF FLUID PULSED HAVING A FREQUENCY WHICH VARIES WITH THE SPEED OF ROTATION OF SAID WHEEL; A RESONANT CHAMBER HAVING AN INLET CONNECTED TO RECEIVE AND TRAIN OF FLUID PULSED AND AN OUTLET, SAID RESONANT CHAMBER PRODUCING AN OUTPUT SIGNAL ONLY WHEN THE FREQUENCY OF SAID TRAIN OF FLUID PULSES IS SUBSTANTIALLY THE SAME AS THE RESONANT FREQUENCY OF SAID CHAMBER; A SECOND FLUID AMPLIFIER HAVING AN INLET PORT ADAPTED TO BE CONNECTED TO A SOURCE OF FLUID UNDER PRESSURE, SAID SECOND FLUID AMPLIFIER HAVING A CONTROL PORT AND AN OUTLET PORT THROUGH WHICH FLUID IS DISCHARGED WHEN A SIGNAL IS PROVIDED AT SAID CONTROL PORT; MEANS CONNECTING SAID OUTLET OF SAID RESONANT CHAMBER TO SAID CONTROL PORT OF SAID SECOND FLUID AMPLIFIER; AN INTEGRATOR CONNECTED TO RECEIVE FLUID FROM SAID OUTLET PORT OF SAID SECOND FLUID AMPLIFIER, SAID INTEGRATOR BEING OPERABLE TO SUPPLY A SIGNAL TO SAID CONTROL PORT OF SAID FIRST FLUID AMPLIFIER, THEREBY INTERRUPTING THE FLOW OF FLUID NORMALLY DISCHARGED AGAINST SAID BLADES OF SAID REACTION WHEEL WHEN THE SPEED OF SAID WHEEL SUBSTANTIALLY CORRESPONDS TO THE RESONANT FREQUENCY OF SAID RESONANT CHAMBER.