highly preheated combustion air technology
Only primary air is supplied as the combustion air.
Combustion air is suitably supplied by means of a fan (22) in a predetermined quantity.
A combustion air aperture (60) is provided that extends through the thin-body flange.
A portion of the hot compressed high pressure air is used as combustion air for the combustion chamber.
FID fuel and burner air
There is a spark plug for igniting a fuel-air mixture in the combustion chamber.
Said device also comprises an electrical motor (18) which is arranged in the second part (16) of the crankcase (12) and used for driving the compressor wheel (30).
When an engine is started up, the combustion fuel-air ratio is rendered lean as compared with the stoichiometrical fuel-air ratio.
The relatively high combustion temperatures are sustained by providing a high volume of excess combustion air, the same combustion air which maintains the pneumatically suspended combustion zone (33).
The combustion air aperture (60) is located in the flange for alignment with the combustion air intake.
A fan (12) supplies, in dependence on the amount of fuel, the appropriate amount of air for optimum combustion.