Rotor assembly for a gas turbine engine and method of disassembly

Patent · Tue Sep 16 04:00:00 EDT 1986

OSTI ID:5351916

Hetzer, F C; Miller, G W

This patent describes an axial flow gas turbine engine of the type which includes a compression section, a turbine section, a flow path for working medium gases which extends axially through the sections, and a stator assembly having an outer case extending circumferentially about the working medium flow path. The engine further includes a bearing supported from the outer case and disposed about an axis of rotation and a rotor blade assembly which is supported by the bearing and which has an array of rotor blades extending outwardly across the working medium flow path into proximity with the outer case. The improvement described here comprises: a rotor shaft which extends axially through the engine between the compression section and the turbine section; a bearing which is adapted to engage an annular second shaft and to support only the rotor shaft and the annular second shaft; a bearing support which extends radially inwardly from the outer case to support the bearing; an annular second shaft which is joined to the rotor blade assembly, which engages the bearing to rotatably support the rotor blade assembly, which rotatably supports only the rotor shaft and which is capable of movement in the axial direction with respect to the rotor shaft; and a means for axially and circumferentially coupling the rotor shaft to the second shaft.

• Assignee: United Technologies Corp., Hartford, CT
• Patent Number(s): US 4611464
• OSTI ID: 5351916
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330103* -- Internal Combustion Engines-- Turbine
BEARINGS
COMPRESSION
COMPRESSORS
ENGINES
FLUID FLOW
FLUIDS
GAS COMPRESSORS
GAS FLOW
GAS TURBINE ENGINES
GAS TURBINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MACHINERY
MECHANICAL STRUCTURES
MOTION
RETROFITTING
ROTATION
ROTORS
SHAFTS
STATORS
SUPPORTS
TURBINE BLADES
TURBINES
TURBOMACHINERY
WORKING FLUIDS