Gas turbine conical flange bolted joint

A bolted flange assembly (100) for securing rotating components in a gas turbine. The bolted flange assembly (100) includes two rotating wheels (102), each wheel (102) having at least one arm (106) extending towards a spacer (104) positioned partially between the two rotating wheels (102), wherein e...

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Main Authors LIU, GANG, DIMMICK, JOHN HERBERT, LECUYER, RAYMOND JOSEPH, MURIGEPPA, ASHOK KUMAR HAVERI
Format Patent
LanguageEnglish
French
German
Published 25.12.2013
Subjects
BLASTING
BRAKES
CLUTCHES
COUPLINGS FOR TRANSMITTING ROTATION
ENGINE PLANTS IN GENERAL
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A bolted flange assembly (100) for securing rotating components in a gas turbine. The bolted flange assembly (100) includes two rotating wheels (102), each wheel (102) having at least one arm (106) extending towards a spacer (104) positioned partially between the two rotating wheels (102), wherein each arm (106) has a flange surface (108) facing the spacer (104). Either each flange surface (108) or a surface of the spacer (104) is conical, i.e., non-perpendicular to a centerline of the gas turbine, such that in an unconstrained state, a heel end (110) of each flange surface (108) is closer to the spacer (104) than a toe end (112) of each flange surface (108); and a bolt (114) extending through the arm (106) of each rotating wheel (102) and the spacer (104).
Bibliography:Application Number: EP20130171593