Modular gas turbine engine
First Claim
1. A gas turbine fan engine installation on an airplane pylon, the pylon including an annular cowl, struts extending inwardly from said cowl and having engine supports on the inner end,an engine supported on said supports and defining between it and the cowl a path for fan air over said struts and around the engine,engine attachment means securing said engine to said supports,a fan including fan blades mounted on and driven by said engine and extending across said fan air path.said engine including a compressor, a combustion section and a turbine, drive means for said fan including a reduction gear driven by said turbine and having a ring for supporting the fan blades,means accessible from said air path for removing the individual fan blades from said ring,means accessible from said air path for removing said attachment means for said engine to provide for removal of the entire engine axially from said cowl after removal of said fan blades and said attaching means.
1 Assignment
0 Petitions
Accused Products
Abstract
A gas turbine fan engine with improved maintainability features is disclosed. Forward and rearward sections of the core of the engine are joined one to the other, and each are independently separable from the pylon on which the engine is mounted without the necessity of removing the other from the airplane.
79 Citations
23 Claims
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1. A gas turbine fan engine installation on an airplane pylon, the pylon including an annular cowl, struts extending inwardly from said cowl and having engine supports on the inner end,
an engine supported on said supports and defining between it and the cowl a path for fan air over said struts and around the engine, engine attachment means securing said engine to said supports, a fan including fan blades mounted on and driven by said engine and extending across said fan air path. said engine including a compressor, a combustion section and a turbine, drive means for said fan including a reduction gear driven by said turbine and having a ring for supporting the fan blades, means accessible from said air path for removing the individual fan blades from said ring, means accessible from said air path for removing said attachment means for said engine to provide for removal of the entire engine axially from said cowl after removal of said fan blades and said attaching means.
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5. A gas turbine fan engine of the type adapted for installation on an airplane pylon having an annular cowl outwardly of the fan and struts extending inwardly from the cowl across the fan to core engine supports inwardly of the fan, wherein the improvement comprises:
a core engine having a forward section and a rearward section joined one to the other, each of the forward section and the rearward section being separable from the pylon independently of the other and without the necessity of removing the other from the airplane. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
Specification