EP 1841950 A2 20071010 - FAN CASE REINFORCEMENT IN A GAS TURBINE JET ENGINE
Title (en)
FAN CASE REINFORCEMENT IN A GAS TURBINE JET ENGINE
Title (de)
LÜFTERGEHÄUSEVERSTÄRKUNG IN EINEM GASTURBINENTRIEBWERK
Title (fr)
RENFORT DE CARTER DE SOUFFLANTE DANS UN MOTEUR A REACTION A TURBINE A GAZ
Publication
Application
Priority
- US 2005041822 W 20051116
- US 2005033564 W 20050920
Abstract (en)
[origin: WO2007035184A2] Described is reinforcement of a fan case in a gas turbine jet engine. In one embodiment, a containment ring and a hear resistance ring are shrink interference fit on the inside diameter of the fan case, the containment ring where the large fan blades turn, and the heat resistance ring where heated air from backfiring heats up the fan case. In one example, the containment ring is made of a sue alloy to provide added strength to the fan case should a fan blade break, containing the fan blade within the fan case. Also, the containment ring may extent forward of at least the leading edge of each fan blade and aft of at least the trailing edge of each fan blade. The heat resistance ring is made of titanium or other suitable material. Additionally, one or more stiffener rings may be shrink interference fit on the outside diameter of the fan case. The containment ring and stiffener rings can reduce the flight weight of the fan case and lower the material costs, while increasing the containment strength of the fan case. Other embodiments are described and claimed.
IPC 8 full level
F01D 1/00 (2006.01)
CPC (source: EP KR)
F01D 21/00 (2013.01 - KR); F01D 21/045 (2013.01 - EP); F01D 25/00 (2013.01 - KR); F02C 7/00 (2013.01 - KR); F02K 3/06 (2013.01 - EP); F05D 2230/25 (2013.01 - EP); F05D 2230/40 (2013.01 - EP); F05D 2230/60 (2013.01 - EP); F05D 2250/292 (2013.01 - EP); F05D 2260/30 (2013.01 - EP); F05D 2300/133 (2013.01 - EP); Y02T 50/60 (2013.01 - EP)
Citation (search report)
See references of WO 2007035184A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
WO 2007035184 A2 20070329; WO 2007035184 A3 20070823; WO 2007035184 A8 20070705; WO 2007035184 A8 20080103; AU 2005335919 A1 20070405; BR PI0517330 A 20081007; CA 2584641 A1 20070329; CN 101163863 A 20080416; EP 1841950 A2 20071010; IL 181845 A0 20090211; JP 2009515075 A 20090409; KR 20080034086 A 20080418; RU 2007115082 A 20081027; RU 2406877 C2 20101220; SG 165406 A1 20101028
DOCDB simple family (application)
US 2005041822 W 20051116; AU 2005335919 A 20051116; BR PI0517330 A 20051116; CA 2584641 A 20051116; CN 200580031929 A 20051116; EP 05858331 A 20051116; IL 18184507 A 20070311; JP 2008531073 A 20051116; KR 20077007330 A 20070330; RU 2007115082 A 20051116; SG 2010068443 A 20051116