Gas turbine engine fuel system

Details Gas turbine engine fuel system Gas turbine engine fuel system

1981-07-27

1983-07-12

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

60 39464, 417295, F02C 326, F02C 920

Patent

active

043923470

ABSTRACT:
An improvement in a gas turbine engine fuel system of the type having an air pump delivering a stream of pressurized air at pump discharge pressure to a powdered coal manifold which manifold meters powdered coal into the airstream for delivery to and combustion in a combustor maintained at engine compressor discharge pressure, the improvement residing in the provision of an inlet restricting valve at the air pump inlet responsive to compressor discharge pressure and to pump discharge pressure to control the airflow inlet area to the pump so that pump discharge pressure varies directly with compressor discharge pressure and is maintained in excess of compressor discharge pressure by a constant amount sufficient to establish optimum airflow to the combustor.

REFERENCES:
patent: 2683418 (1954-07-01), Smith, Jr.
patent: 2699039 (1955-01-01), Yellott
patent: 2839253 (1958-06-01), Yellott
patent: 3398526 (1968-08-01), Olah

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