Fuel metering system for gas turbine
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United States of America Patent
Stats
-
Aug 14, 2001
Grant Date -
N/A
app pub date -
Jun 21, 2000
filing date -
Oct 21, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fuel metering system for a turbojet engine includes (1) a pump-supplied feed pipe; (2) a supply pipe to the engine; (3) a recirculation pipe; (4) a main metering valve; (5) a pressure control device for the main metering valve; (6) an emergency device for an unintentional opening of the main metering valve; and (7) an automatic pressure limiting device for the pipe system. Control-related connections of the main metering valve and the emergency device exist to an electronic engine controller. The pressure control device and the emergency device are combined in a recirculation valve and are controlled by the engine controller.
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