Gas turbine speed regulator

Claim 1

FOR REGULATING THE FLOW OF FUEL TO A GAS TURBINE, THE COMBINATION OF, A BALL-HEAD ROTATABLE WITH THE TURBINE SHAFT, A VALVE HAVING A STEM SLIDABLE RELATIVE TO SAID BALLHEAD BACK AND FORTH ALONGTHE AXIS THEROF O INCREASE AND DECREASE THE FUEL FLOW, A SHOULDER ON SAID STEM FACING IN THE DIRECTION OF THE FUEL-INCREASING MOVEMENT THEREOF, A SLEEVE SLIDABLE ALONG SAID STEM INTO AND OUT OF ABUTMENT WITH SAID SHOULDER, A FLYWEIGHT FULCRUMED ON SAID BALL-HEAD AND ABUTTING SAID SLEEVE TO MOVE SAID STEM IN THE FUEL-DECREASING DIRECTION WITH INCREASES IN THE TURBIANE SPEED, A SPEEDER SPRING URGING SAID SLEEVE IN THE FUEL DECREASING DIRECTION NORMALLY BALANCING THE FORCES OF SAID FLYWEIGHT, A SECOND SPRING AND ACTING BETWEEN SAID STEM LESS THAN SAID SPEEDER SPRING AND ACTING BETWEEN SAID STEM AND SAID SLEEVE TO URGE THE LATTER TOWARDABUTMENT WITH SAID SHOULDER, MANUALLY OPERABLE MEANS FOR ADJUSTING WITH STRESSING OF SAID SPEEDER SPRING WHEREBY TO VARY THE SETTING OF THE ALL-SPEED GOVERNOR FORMED BY SAID VALVE, SAID BALL-HEAD AND FLYWEIGHT AND THE SPEEDER SPRING AND THEREBY POSITION SAID STEM IN ACCORDANC WITH THE RADIAL POSITION OF SAID FLYWEIGHT, MEANS FOR SENSING CHANGES IN THE COMPRESSOR DISCHARGE PRESSURE IN SAID TURBINE INCLUDING AN ELEMENT MOVABLE BACK AND FORTH WITH INCREASES AND DECREASES IN SUCH PRESSURE, OPPOSED STOP MEMBERS SPACED APART DURING STEADY STATE OPERATION OF THE TURBINE UNDER THE CONTROL OF SAID GOVERNOR BUT ENGAGEABLE UNDER THE FORCE OF SAID SPEEDER SPRING DURING A SUBSTANTIAL INCREASE INTHE SPEED SETTING OF SAID GOVERNOR TO LIMIT THE FUELINCREAISNG MOVEMENT OF SAID STEM AND ALLOW THE FORCE OF SAID SPEEDER SPRING TO MOVE SAID SLEEVE AWAY FROM SAID SHOULDER AGAINST THE FORCE OF SAID SECOND SPRING WHEREBY THE EXTENT OF OPENING OF SAID VALVE UNDER THE CONTROL OF THE PRESSURE SENSOR IS SUBSTANTIALLY UNAFFECTED BY THE CON TINUING CENTIFUGAL FORCE DEVELOPED BY SAID FLYWEIGHT.