Patent ID: 8221056
Filing Date: 2012-07-17
Classification: F01D,F05D,Y02E

Abstract:
1. A steam turbine comprising: a first casing including a first turbine operably coupled to a rotating shaft and operable at a first temperature and an end packing for partially sealing the first casing with the rotating shaft; a steam seal regulator for accepting a flow of steam from the end packing of the first casing; a second casing including a second turbine operably coupled to the rotating shaft and operable at a second temperature that is less than the first temperature, wherein the second casing is separated from the first casing; and an ejector for forming a mixture of at least a portion of the flow of steam from the steam seal regulator and a portion of steam removed from an upstream chamber of a given stage of the second turbine and introducing the mixture into the second turbine.