Turbocharger flexible nozzle ring

Claim 1

A TURBINE ASSEMBLY COMPRISING, A HOUSING HAVING A TURBINE ROTOR CHAMBER THEREIN, A TURBINE ROTOR MOUNTED FOR ROTATION WITHIN SAID CHAMBER, AN EXHAUST PASSAGE LEADING FROM SAID CHAMBER, AN ANNULAR GAS SUPPLY CHAMBER FORMED IN SAID HOUSING RADIALLY OUTWARDLY OF SAID ROTOR CHAMBER AND HAVING A RADIAL SURFACE, A RADIALLY EXTENDING ANNULAR THROAT OPENING RADIALLY INWARDLY FROM SAID GAS SUPPLY CHAMBER INTO SAID ROTOR CHAMBER, AN ANNULAR THROAT RING HAVING A SMOOTH CONTINUOUS SIDE SURFACE FORMING A SIDE WALL OF SAID THROAT AND HAVING AN ANNULAR OUTER SURFACE AT THE OUTER EDGE THEREOF, AN ANNULAR RADIALLY INWARDLY FACING SUPPORT SURFACE ON SAID HOUSING ADJACENT SAID THROAT FORMING AN AXIALLY EXTENDING RECESS IN WHICH SAID RING IS POSITIONED WITH SAID OUTER SURFACE OF SAID RING FACING SAID ANNULAR INNER SURFACE OF SAID HOUSING, SAID INWARDLY FACING SURFACE ENCLOSING SAID RING THEREIN AND RADIALLY POSITIONING THE RING, AN AXIALLY FACING SURFACE MEANS IN THE HOUSING ENGAGED BY THE RING LIMITING AXIAL MOVEMENT OF THE RING TOWARD SAID THROAT, AN ANNULAR SPRING RING HAVING SPRING TONGUES CUT THEREFROM EXTENDING AXIALLY TOWARD THE THROAT RING AND ENGAGING THE THROAT RING AND HOLDING IT AGAINST SAID SURFACE MEANS, AN AXIALLY FACING SPRING SUPPORT SURFACE IN THE HOUSING SUPPORTING SAID SPRING RING, AND AN AXIALLY EXTENDING ANNULAR FLANGE ON THE THROAT RING EXTENDING AWAY FROM THE THROAT AND SURROUNDING SAID SPRING RING HOLDING IT RADIALLY CENTERED, SAID SIDE SURFACE OF THE THROAT RING FORMING A CONTINUATION OF THE SURFACE OF THE HOUSING IN SAID GAS SUPPLY CHAMBER FOR THE SMOOTH FLOW OF GAS FROM THE SUPPLY CHAMBER INTO THE THROAT.