Integrated power system

Patent · Tue Oct 13 00:00:00 EDT 1987

OSTI ID:5853731

Waddington, C

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.

• Assignee: Avco Corp., Greenwich, CT
• Patent Number(s): US 4699021
• OSTI ID: 5853731
• Resource Relation: Patent File Date: Filed date 20 Sep 1984
• Country of Publication: United States
• Language: English

Related Subjects

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