ACM / ECS (Air Cycle Machine / Environmental Control System)
Air Cycle Machines (ACMs) are critical for cooling, compressing, and circulating air in aircraft, ensuring a comfortable environment for both cockpit and cabin. NS independently designs and manufactures high-performance ACMs utilizing proprietary technology and advanced engineering expertise.
Key Features
- Maximizes cooling efficiency through high-efficiency compressors, turbines, and optimized heat exchanger design
- Compact, lightweight structure enhances aircraft fuel efficiency
- Maintains stable performance under extreme altitude and temperature conditions
- Capable of meeting diverse specifications and system requirements based on customer needs
F-16 POD ACM
| Item | Specification | |
|---|---|---|
| Compression Ratio | 1.4 | – |
| Expansion Ratio | 2.0 | – |
| Rotational Speed | 40,000 ~ 60,000 | RPM |
| Dimensions | 250 X 230 | (D x L, mm) |
T-50 ACM
| Item | Specification | |
|---|---|---|
| Compression Ratio | 1.5 | – |
| Expansion Ratio | 6.5 | – |
| Rotational Speed | 70,000 ~ 80,000 | RPM |
| Dimensions | 228 X 400 | (D x L, mm) |
F-16 POD ECS
| Item | Specification | |
|---|---|---|
| Compression Ratio | 1.4 | – |
| Expansion Ratio | 2.0 | – |
| Cooling Capacity | 5kW | |
| Rotational Speed | 40,000 ~ 60,000 | RPM |
| Dimensions | 1000 X 600 X 600 | (LxWxH, mm) |
Ground Based ACM
| Item | Specification | |
|---|---|---|
| Rated Power | 25.4 | kW |
| Rated Flowrate | 250 | g/s |
| Discharge Pressure | 150 | kPa(abs) |
| Power Supply | 380 ~ 480 | VDC |
| Dimensions | 473 X 305 X 250 | (LxWxH, mm) |
Notable Applications
- Supplied external POD-type ACMs for F-16 aircraft to the Air Force
- Developed and supplied internal ACMs for the T-50 aircraft
- Exported external POD-type ECS systems for F-16 aircraft to international clients
- Supplied ground-based ACM systems to overseas markets
Heating and Ventilation Units
NS’s aircraft heating and ventilation units feature a blower that draws in outside air and a valve system that precisely controls airflow direction- regulating both volume and flow for optimal cabin conditions.
Key Features
- Provides ventilation, heating, and windshield demisting functions
- Supplies required airflow with optimized axial impellers and two-stage speed control
- Precision flap control through electric valve actuation
Blowers
| Item | Specification | |
|---|---|---|
| Rated Power | 0.896 | W |
| Rated Flowrate | 200 | LPM |
| Discharge Pressure | 1,870 | Pa(g) |
| Rotational Speed | High – 15,100 Low – 9,600 | rpm |
Flapper Valve
| Item | Specification | |
|---|---|---|
| Control Method | Electric control | – |
| Operating Voltage | 28 | VDC |
| Power Consumption | 10 | W |
| Operating Modes | 2 Stage | – |
Notable Applications
- Completed development and delivery of the LAH/LCH systems from 2016 to 2022
- Delivered the first volume production run for the LAH program between 2022 and 2024
- Currently supplying the second mass production phase for the LAH program (since 2024)
