2.7
Prevention of explosions in the exhaust gas system (gas mode)
Unburned gas in the exhaust gas system can cause an explosion.
2.7.1
General
When the engine operates in gas mode or in fuel sharing mode, unburned gas can stay in the
exhaust gas system after the conditions that follow:
•
There are misfires in a combustion chamber.
•
There is an emergency engine stop.
•
There is an engine shutdown signal that you cannot cancel.
•
There is an electrical power failure to the engine control system (ECS).
Related to the safety concept of WinGD the engine has the items and functions that follow:
•
The components of the exhaust gas system upstream of the turbochargers are resistant
to explosions.
•
The gas pipes of the engine and of the related gas system have connection points for
inert gas. Thus you can remove fuel gas from the related pipes before you do work on
them.
•
The ECS continuously monitors the combustion. If necessary the ECS adjusts the
combustion parameters.
•
If there are too many misfires, the ECS automatically changes to diesel mode.
•
If the ECS finds a dangerous condition at an engine stop, the ECS sends a signal for an
automatic ventilation sequence, refer to
X92DF
AA00-0000-00AAA-012G-A
Operation Manual
Prevention of explosions in the exhaust gas system (gas mode)
Winterthur Gas & Diesel Ltd.
- 58 -
Issue 002 2020-08
