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US 11,511,867 B2Granted
Mixing ram and bleed air in a dual entry turbine system
AssigneeHamilton Sundstrand Corporation
InventorsLouis J. Bruno, Harold W. Hipsky
Life of this patent
Estimating the term…
Abstract
An air cycle machine is provided. The air cycle machine can be included an environmental control system of an aircraft. The air cycle machine can include a turbine comprising a plurality of inlet gas flow paths, a compressor driven by the turbine from a shaft, and a fan driven by the turbine from the shaft.
Claims18
An air cycle machine comprising:
- a turbine comprising a first nozzle that receives a bleed air flow from an aircraft turbine engine and a second nozzle that receives a fresh air flow;
- a shaft;
- a compressor driven by the turbine via the shaft and that receives and compresses the fresh air flow;
- a power turbine connected to the shaft and that receives cabin discharge air from an aircraft cabin after the discharge air has been heated in a heat exchanger by the fresh air flow after it leaves the compressor;
- and
- a fan driven by the shaft,
- wherein the bleed air flow enters the first nozzle of the turbine and the fresh air flow enters the second nozzle of the turbine after the fresh air flow leaves the compressor, wherein the fresh air flow is mixed with the bleed air flow in the turbine to create a mixed airflow that exits the turbine and enters the aircraft cabin.
4 more elements
An air conditioning system comprising:
- a first turbine comprising a first nozzle that receives a bleed air flow from an aircraft turbine engine and a second nozzle that receives a fresh air flow;
- a shaft;
- a compressor driven by the first turbine via the shaft and that receives and compresses the fresh air flow;
- a fan turbine;
- a power turbine connected to the shaft and that receives cabin discharge air from an aircraft cabin after the discharge air has been heated in a heat exchanger by the fresh air flow after it leaves the compressor;
- and
- a fan driven by the fan turbine,
- wherein the bleed air flow enters the first nozzle of the first turbine and fresh air flow enters the second nozzle of the first turbine after the fresh air flow leaves the compressor, wherein the fresh air flow is mixed with the bleed air flow in the first turbine to create a mixed airflow that exits the first turbine and enters the aircraft cabin.
5 more elements
An air conditioning system, comprising:
- a turbine comprising a first nozzle that receives a bleed air flow from an aircraft turbine engine and a second nozzle that receives a fresh air flow;
- a shaft;
- a compressor driven by the turbine via the shaft and that receives and compresses the fresh air flow;
- a power turbine connected to the shaft and that receives cabin discharge air from an aircraft cabin after the discharge air has been heated in a heat exchanger by the fresh air flow after it leaves the compressor;
- a motor;
- and
- a fan driven by the motor,
- wherein the bleed air flow enters the first nozzle of the turbine and the fresh air flow enters the second nozzle of the turbine after the fresh air flow leaves the compressor, wherein the fresh air flow is mixed with the bleed air flow in the turbine to create a mixed airflow that exits the turbine and enters the aircraft cabin.
5 more elements
Dependencies are inferred from the claim text.