Gas turbine engine

A bypass turbofan gas turbine engine (10) is started by means of electric starter motor (26) mounted directly about a downstream end or upstream of the low pressure spool (12) of the engine. This causes air to be driven by a fan (16) through a bypass duct (32) around the engine casing (28). Closures...

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Bibliographische Detailangaben
Hauptverfasser:	BRADBROOK, STEPHEN JOHN, WILSON, RICHARD JAMES, DAVIS, BRIAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS JET-PROPULSION PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A bypass turbofan gas turbine engine (10) is started by means of electric starter motor (26) mounted directly about a downstream end or upstream of the low pressure spool (12) of the engine. This causes air to be driven by a fan (16) through a bypass duct (32) around the engine casing (28). Closures (34) close to substantially seal an outlet of the bypass duct (32), and the air is directed into a combustion chamber (24) of the engine and through the turbines (22,23), causing the high pressure spool (14) to pick up speed for starting.