Apparatus for improving the fuel efficiency of a gas turbine engine

Patent · Tue Sep 20 00:00:00 EDT 1983

OSTI ID:5448624

Coffinberry, G A

An energy recovery system is provided for an aircraft gas turbine engine of the type in which some of the pneumatic energy developed by the engine is made available to support systems such as an environmental control system. In one such energy recovery system, some of the pneumatic energy made available to but not utilized by the support system is utilized to heat the engine fuel immediately prior to the consumption of the fuel by the engine. Some of the recovered energy may also be utilized to heat the fuel in the fuel tanks. Provision is made for multi-engine applications wherein energy recovered from one engine may be utilized by another one of the engines or systems associated therewith.

• Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
• Patent Number(s): US 4404793
• OSTI ID: 5448624
• Resource Relation: Patent File Date: Filed date 20 Mar 1980; Other Information: PAT-APPL-132364
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
GAS TURBINE ENGINES
ENERGY RECOVERY
FUEL ECONOMY
WASTE HEAT UTILIZATION
AIRCRAFT
HEAT EXCHANGERS
HEAT TRANSFER
PNEUMATICS
ENERGY TRANSFER
ENGINES
FLUID MECHANICS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MECHANICS
RECOVERY
WASTE PRODUCT UTILIZATION
330103* - Internal Combustion Engines- Turbine
320201 - Energy Conservation
Consumption
& Utilization- Transportation- Air & Aerospace