Arrangement for extension of stability range of pilot flame system and/or pilot burner system in e.g. aircraft, has burner systems with burners distributed radially at periphery of chamber or over cross-section area of chamber

摘要

The arrangement has pilot burner systems with a strand provided with magnetic valves e.g. 2-way switching valve and 3-way switching valve. The independent burner systems comprise individual burners distributed radially at periphery of a combustion chamber or over cross-section area of the combustion chamber. One of the magnetic valves is closed, and the other magnetic valve is opened based on an operating point. A fuel amount is increased when a main valve is opened in a delayed manner. Independent claims are also included for the following: (1) a method for controlling gradated burner systems (2) a method for distribution of nominal fuel amount between individual stages of a pilot register fuel system.