EACS is an innovative machine that allows to test internal combustion engines in a wide range of ambient conditions, from sea level up to 5500 m altitude.

In order to test an engine in different ambient pressure, the commonly used procedure is to use a special test cell able to maintain a low pressure inside.
A test cell having this characteristic is very expensive because it needs very robust wall structure able to not collapse with a force of over 5000 kg/m².

The EACS system overtakes these limitations maintaining the possibility to perform any kind of stationary or transient test thank to a very fast and reliable regulation system, able to maintain the set pressure level in any engine working condition simulating also climbing or down hill roads.

In order to obtain very stable pressure conditions during transient tests (fast variations of intake air, exhaust gas and fuel flow rates), the solution consists in producing the desired pressure levels within a single volume, from which the engine draws the flow of intake air and into which it introduces the flow of exhaust gas.

The intake air can be regulated in temperature and humidity and high precision sensors allow to monitor working conditions continuously. The EACS system can be delivered in different configurations in order to adapt to different engine sizes, from small gasoline car engines to big heavy duty diesel engines.

The precise configuration of the system is determined each time by means of a simulation software that allows to adapt not only the components, but also their distribution in the test cell in order to optimize the space usage.

Advantages

- Possibility to perform transient tests
- Possibility to simulate both higher and lower altitudes
- Very low power consumption thank to the use of regenerative inverters
- Installable in existing test cells
- Possibility to distribute components in different rooms
- Personalized design
- User friendly software
- Full control through AK protocol

Total flow rate

Minimum pressure

Maximum pressure

Pressure regulation precision

Pressure stability in steady state conditions

Pressure stability in transient conditions

Response time

Relative humidity range

Relative humidity stability

Standard temperature range

Extended temperature range option

Temperature stability

Remote control

from 1000 m^³/h to 10000 m^³/h

- 500 mbar (about 5500 m over sea level)

+100 mbar (about  800 m under sea level)

± 1 mbar

± 1 mbar

± 5 mbar

< 1 sec

from 5% to 95%

< 1%

from 20 °C to 40 °C

from -30 °C to 60 °C

< 1 °C

AK Protocol