Combustors

Patent · Tue Oct 20 04:00:00 EDT 1987

OSTI ID:5976830

Fucci, R C

For a liner for a combustion chamber of a gas turbine engine having the products of combustion on the inner surface of the liner and cooler air on the outer surface of the liner, this patent describes means for generating a film of cool air by directing the cooler air internally to flow adjacent the inner surface of the liner. Combustion/dilution air holes are in the liner flow cooler air into the combustion chamber impeding the film. Refilmer means for generating a film of cooler air downstream of the combustion/dilution hole is relative to the flow of the combustion products. The refilmer includes a grommet extending through a circular opening formed in the liner and having an outer diameter substantially equal to the diameter of the circular opening, an axially extending lip on one end of the grommet circumferentially extending 180/sup 0/ around the grommet. The outer wall of the grommet is contiguous with the lip being recessed to define a gap between the liner and grommet for leading cooler air from the outer surface of the liner to impinge on the lip and form a film of cooler air directed adjacent the inner surface of the liner.

• Assignee: United Technologies Corp., Hartford, CT
• Patent Number(s): US 4700544
• OSTI ID: 5976830
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330103* -- Internal Combustion Engines-- Turbine
AIR FLOW
COMBUSTION CHAMBERS
COMBUSTION PRODUCTS
COMBUSTORS
COOLING
ENGINES
FLUID FLOW
GAS FLOW
GAS TURBINE ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LINERS