Thrust bearing loading arrangement for gas turbine engines

Patent · Tue Mar 15 04:00:00 EST 1988

OSTI ID:5137730

Haaser, F G

In a gas turbine engine including a stationary wall and a rotor comprising a compressor and a turbine, a thrust bearing loading arrangement is described comprising: means for mounting the rotor for rotating movement. The means including a thrust ball bearing. The engine including at least one sealed cavity between a portion of the rotor and the stationary wall. The cavity including an aft wall and a forward wall, one of the walls having a greater surface area than the other of the walls. The stationary wall having an opening aft of the compressor for providing a path for flow of compressor discharge air into the cavity to increase the load on the thrust bearing. Means are responsive to compressor discharge pressure for controlling flow of compressor discharge air into the cavity to insure unidirectional loading on the thrust bearing throughout the normal operating range of the engine.

• Assignee: General Electric Co., Cincinnati, OH
• Patent Number(s): US 4730977
• OSTI ID: 5137730
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330103* -- Internal Combustion Engines-- Turbine
AIR FLOW
BEARINGS
COMPRESSORS
DYNAMIC LOADS
ENGINES
FLUID FLOW
FLUID MECHANICS
GAS FLOW
GAS TURBINE ENGINES
HEAT ENGINES
HYDRAULICS
INSTALLATION
INTERNAL COMBUSTION ENGINES
MECHANICAL STRUCTURES
MECHANICS
OPERATION
ROTORS
SUPPORTS
WALLS