AeroFMS has 40+ years of experience with air (flow-through) balances. Air balances are used where power simulation is required but a subscale engine (simulator) cannot be used. Multiple air supply systems bridge the air across the metric gap of the balance, minimizing momentum effects. The balances can provide for suction at the inlet, exit nozzle flow (exhaust pressure), and the ability to vary the ratio. Each air supply can be individually controlled at pressures from 600 – 1000 psi. The air supply tubes run internal to the balance core.
We have accomplished extensive calibrations that resulted in balances of high quality and reliability. To support balances of these types, we have also done extensive research in fatigue life of bellows. The welded bellows design is incorporated with precision flanges.
Accomplished designs
|
|
Max. Dia. (in) |
NF (lb) |
PM (in-lb) |
SF (lb) |
YM (in-lb) |
RM (in-lb) |
AF (lb) |
|
MC-24-1.50 |
1.50 |
2,400 |
4,000 |
2400 |
4000 |
750 |
- |
|
MC-15-2.5 |
2.50 |
1,500 |
6,000 |
750 |
3,000 |
2,000 |
200 |
|
MC-16-3.0 |
3.00 |
1,600 |
6,750 |
500 |
2,000 |
1,000 |
60 |
|
MC-10-3.75 |
5.20 |
1,400 |
4,175 |
500 |
2,500 |
2,500 |
500 |
|
MC-59-3.5 |
7.50 |
5,900 |
17,711 |
1,800 |
5,400 |
8,000 |
800 |
|
MC-130-8.0 |
8.00 |
13,000 |
107,250 |
3,000 |
18,000 |
32,000 |
500 |
|
MC-30-8.80 |
9.50 |
3,000 |
18,000 |
3,000 |
18,000 |
4,000 |
400 |
Air Systems
|
Balance ID |
Number Air Supplies |
Mass Flow (lb/sec) |
Max. Pressure (psi) |
|
MC-24-1.50 |
1 |
|
1000 |
|
MC-15-2.50 |
2 |
4.0, 1.25 |
500 |
|
MC-16-3.00 |
1 |
1.5 |
500 |
|
MC-10-3.75 |
3 |
7.5, 4.0, .2 |
500 |
|
MC-59-3.50 |
1 |
15.2 |
600 |
|
MC-130-8.0 |
2 |
13.0, 13.0 |
600 |
|
MC-30-8.80 |
2 |
9.9, 5.0 |
500 / 20 |
 |
 |