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Fern Engineering is an industry-leading engineering company whose innovation has led to the award of the following U.S. patents:
Gas Turbine Engine System with Water Injection
| INVENTORS: |
Herman Urbach, Philip Levine (Fern Engineering)
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| ABSTRACT: |
A gas turbine engine is energized by a controlled supply of fuel thereto for operation under regulated conditions increasing efficiency and power output per unit mass of air under pressurized flow from a compressor to which the air is supplied with water droplets at a ratio predetermined to reduce operational temperature within the turbine engine.
Operational conditions are also regulated by angular adjustment of the stator blades in the turbine stages of the gas turbine engine through which the pressurized flow of combustion products is conducted, so as to maintain a maximum inlet temperature arranged to maximize part-load efficiency.
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Regenerative System for a Gas Turbine
| INVENTOR: |
Walter Wadsworth (Fern Engineering)
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| ABSTRACT: |
A system for retro-fitting a simple gas turbine to convert it to a regenerative gas turbine, the system comprising connector and inner housings associated with the combustors and connected to an air heater.
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Note: A recent Fern Engineering study on emerging technology for enhanced gas turbine operating flexibility suggests that the use of inter-stage cooling on a single-shaft gas turbine which has been retrofit with the regenerative patent above may result in a high thermal efficiency.
See our  press release for more information on the EPRI-sponsored study.
Appearance System
| INVENTORS: |
Walter Wadsworth (Fern Engineering)
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| ABSTRACT: |
System consisting of a series of decorative panels arranged in coplanar relationship over the vertical surface of a structure, each panel being attached to the structure at its central point by a single separable connection.
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Turbine Seal
| INVENTORS: |
Gordon Bakken (Fern Engineering)
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| ABSTRACT: |
Seal for two concentric tubular elements of a gas turbine, consisting of rings associated with each element and having facing grooves, and of a connector extending between the grooves and consisting of two annuli which are in concentric spaced relationship and are joined by a web.
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In addition to those listed above, the following U.S. patent has been awarded to a current member of Fern Engineering's expert staff before they joined this company:
Rotor Blade and Stator Vane Using Ceramic Shell
| INVENTORS: |
Irwin Rosman, Hector Bourgeois (Fern Engineering)
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| ABSTRACT: |
A ceramic blade assembly including a corrugated-metal partition situated in the space between the ceramic blade element and the post member, which corrugated-metal partition forms a compliant layer for the relief of mechanical stresses in the ceramic blade element during aerodynamic and thermal loading of the blade and which partition also serves as a means for defining contiguous sets of juxtaposed passages situated between the ceramic blade element and the post member, one set being open-ended and adjacent to exterior surfaces of the post member for directing cooling fluid thereover and the second set being adjacent to the interior surfaces of the ceramic blade element and being closed-off for creating stagnant columns of fluid to thereby insulate the ceramic blade element from the cooling air.
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