Patent ID: 8801369
Filing Date: 2014-08-12
Classification: F01D,F05B,F05D

Abstract:
1. A turbine for the expansion of gas and vapor, comprising: a body or casing with a volute for the transit of the fluid from an input to an output passage through at least a statoric and a rotoric group; a front shield that extends radially from said volute towards an axis of a turbine shaft, an external tube member fixed in front of said shield or said volute designed to hold the turbine shaft with the interposition of a supporting unit, said turbine shaft having a head supporting the rotoric group, wherein the turbine shaft together with the rotoric group is movable axially between a work position, in which the head of said shaft is at a distance from an internal end of the external tube member facing towards the statoric group, and a retracted position, in which the head of the shaft or a part of the rotoric group rests against said internal end of said tube member with the interposition of at least a front seal.