초록 ▼

An integrated power system for use with a gas turbine engine is provided for driving and steering a tracked vehicle under the control of the vehicle\s operator. The system includes a multispeed transmission for transmitting power from a free power turbine, included in the gas turbine engine, to comb

An integrated power system for use with a gas turbine engine is provided for driving and steering a tracked vehicle under the control of the vehicle\s operator. The system includes a multispeed transmission for transmitting power from a free power turbine, included in the gas turbine engine, to combining planetary gear systems driving the vehicle, elements of the combining planetary gear systems also being driven by a variable displacement hydraulic steering motor. The transmission is connected to a direct displacement pump for supplying fluid under pressure to the steering motor and to an accumulator which stores and releases energy to the pump to reduce shock to the system as the speed ratio of the transmission is changed in response to the speed of the free power turbine. A control system, responsive to the vehicle\s operator, determines operation of the hydraulic steering motor to effect steering as well as controlling the power output of the gas turbine engine. The control system, in response to the vehicle\s operator, also controls pivot steering as well as movement of the vehicle in forward or reverse directions. An overrunning clutch interconnects the free power turbine to the gas producer whenever the turbine tries to exceed the speed of the gas producer.

대표청구항 ▼

An integrated power system 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 associ

An integrated power system 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 said output shafts; a variable speed transmission drivingly coupled to said free power turbine; drive means operatively connecting said transmission and each of said combining planetary gear systems; steering means operatively coupled to each of said combining planetary gear systems for selectively driving at least one of said combining planetary gear systems; said steering means including a variable displacement hydraulic motor in driving engagement with said planetary gear systems and an hydraulic pump in driving engagement with said transmission for supplying fluid under pressure to said 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 said hydraulic motor and said hydraulic pump, said valve being responsive to said fuel control to establish a maximum fluid pressure imparted by said hydraulic pump to said hydraulic motor.