Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Patent
1992-10-07
1993-11-16
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
60757, F02C 306
Patent
active
052612236
ABSTRACT:
A gas turbine engine combustor liner having conventional dilution holes disposed therethrough and multi-hole film cooling holes to provide a cooling film on the hot side of the liner is provided with generally rectangular film starting apertures disposed downstream, with respect to the predetermined cooling film flow direction, of the dilution holes in predetermined otherwise cooling film dry areas on the hot side of the combustor liner. In one embodiment the multi-hole film cooling holes and the rectangular film starting apertures are angled sharply in the downstream direction and angled in a circumferential direction which generally coincides with a predetermined swirl angle of the flow along the surface of the liner within the combustion zone.
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"Multihole Cooling Film Effectiveness and Heat Transfer" by R. E. Mayle and F. J. Camarata in Transactions of the ASME, Nov., 1975.
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Bertsch Richard A.
Davidson James P.
General Electric Company
Squillaro Jerome C.
Wicker W. J.
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