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Title: Integrated power system

An integrated power system is described for transmitting power from a gas turbine engine, including a gas producer and a free turbine engine, to the driving elements of a vehicle comprising: a pair of independent output shafts; a pair of combining planetary gear systems, each being drivingly coupled to an associated one of the output shafts; a variable speed transmission drivingly coupled to the free power turbine; drive means operatively connecting the transmission and each of the combining planetary gear systems; steering means operatively coupled to each of the combining planetary gear systems for selectively driving at least one of the combining planetary gear systems; the steering means including a variable displacement hydraulic motor in driving engagement with the planetary gear systems and an hydraulic pump in driving engagement with the transmission for supplying fluid under pressure to the hydraulic motor to thereby effect steering of the vehicle; a fuel control for controlling the power output of the gas turbine engine; and an adjustable relief valve operatively interposed between the hydraulic motor and the hydraulic pump, the valve being responsive to the fuel control to establish a maximum fluid pressure imparted by the hydraulic pump to the hydraulic motor.
Authors:
Publication Date:
OSTI Identifier:
5853731
Report Number(s):
US 4699021
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 20 Sep 1984
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; GAS TURBINE ENGINES; CONTROL SYSTEMS; MECHANICAL TRANSMISSIONS; DESIGN; FUEL INJECTION SYSTEMS; GEARS; HYDRAULIC EQUIPMENT; OPERATION; PRESSURE CONTROL; PRESSURIZING; PUMPS; RELIEF VALVES; SHAFTS; CONTROL; CONTROL EQUIPMENT; ENGINES; EQUIPMENT; FLOW REGULATORS; FUEL SYSTEMS; HEAT ENGINES; INTERNAL COMBUSTION ENGINES; MACHINE PARTS; VALVES 330103* -- Internal Combustion Engines-- Turbine