Small airblast fuel nozzle with high efficiency inner air swirler

Patent · Tue Sep 08 04:00:00 EDT 1992

OSTI ID:6987706

Koblish, T R; Bell, L D

This patent describes a gas turbine engine wherein upon cold ignition a stagnation air pressure of generally about 1 to about 1 [1/2] inches of water is supplied by the compressor to airblast fuel nozzles communicating with the combustor, means for introducing fuel into the chamber and air inlet passages space apart around the nozzle body upstream of the fuel discharge orifice and extending from the chamber to the exterior of the nozzle body for receiving air at the the stagnation air pressure, each air passage having converging sections canted relative to one another effective to provide an air pressure in the inner air swirl chamber of at least about 70% of the stagnation air pressure for enhancing inner air swirl strength for fuel atomization and cold ignition of the engine.

• Assignee: Fuel Systems Textron Inc., Zeeland, MI (United States)
• Patent Number(s): A; US 5144804
• Application Number: PPN: US 7-694872
• OSTI ID: 6987706
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330103* -- Internal Combustion Engines-- Turbine
330603 -- Vehicle Design Factors-- Engine System
AIR FLOW
DESIGN
EFFICIENCY
ENERGY EFFICIENCY
ENGINES
FLUID FLOW
FUEL SYSTEMS
GAS FLOW
GAS TURBINE ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NOZZLES