Gas seal vanes of variable nozzle turbine

Patent · Tue Apr 21 00:00:00 EDT 1987

OSTI ID:6546357

Burdette, F E; Fleury, J L; Roessler, M

In association with an engine described here, a turbocharger for supplying compressed air to the engine comprising: an exhaust gas driven turbine rotatably mounted to a shaft and having a compressor impeller thereon; a compressor housing having an inlet and an outlet and enclosing the compressor impeller; a center housing including bearing means for rotatably supporting the shaft; a turbine housing including an inlet and an outlet, the turbine housing forming a volute therein for directing exhaust gas from the engine through an annular passage to the turbine; a flange member mounted between the center housing and the turbine housing and having a recess therein defining a radially inner and outer surface, the surfaces being aligned axially, spaced radially apart and facing each other; a generally annularly shaped unison ring of slots therein and at least three equally spaced roller members rotatably mounted thereto, the rollers engageable with the inner surface during periods of relatively low exhaust gas temperature and engageable with the outer surface during periods of relatively high exhaust gas temperatures; a generally annular nozzle ring of vanes pivotably mounted thereto, each of the vanes having a vane arm which is engageable within a slot in the unison ring; a spring means for biasing vanes against the turbine housing; and means for preventing rotation of the nozzle ring.

• Assignee: The Garrett Corporation, Los Angeles, CA
• Patent Number(s): US 4659295
• OSTI ID: 6546357
• Resource Relation: Patent File Date: Filed date 20 Apr 1984
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
EXHAUST GASES
HEAT RECOVERY
GAS TURBINE ENGINES
NOZZLES
SEALS
TURBOCHARGERS
WASTE HEAT UTILIZATION
AIR FLOW
COMPRESSED AIR
EXHAUST SYSTEMS
FLANGES
GAS COMPRESSORS
GAS TURBINES
INTAKE STRUCTURES
ROTATION
SHAFTS
TEMPERATURE GRADIENTS
VANES
AIR
COMPRESSED GASES
COMPRESSORS
ENERGY RECOVERY
ENGINES
FLUID FLOW
FLUIDS
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MACHINERY
MECHANICAL STRUCTURES
MOTION
RECOVERY
SUPERCHARGERS
TURBINES
TURBOMACHINERY
WASTE PRODUCT UTILIZATION
WASTES
330103* - Internal Combustion Engines- Turbine