Blade insert

An exemplary embodiment of the invention is a gas turbine engine blade spacer has an axially extending backbone (300), spaced apart forward, mid and aft dovetail lands (302, 304 and 308), respectively, disposed along the backbone, the backbone (300) and the forward, mid, and aft dovetail lands (302,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	FORRESTER, JAMES MICHAEL
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES ENGINE PLANTS IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 JET-PROPULSION PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	An exemplary embodiment of the invention is a gas turbine engine blade spacer has an axially extending backbone (300), spaced apart forward, mid and aft dovetail lands (302, 304 and 308), respectively, disposed along the backbone, the backbone (300) and the forward, mid, and aft dovetail lands (302, 304 and 308) having bottom curved backbone surfaces (310). Each of the forward, mid and aft dovetail lands has a riser (312) that extends above the backbone (300) and has a riser flat top (314). In the exemplary embodiment disclosed herein, a spacer tab (320) extends generally axially forward of the forward land (302) and includes intersecting axially and radially extending tab apertures (316 and 318). A void (330) extends around the backbone (300) and between the forward and aft dovetail lands (302 and 308) and the void filled with an elastomeric material (332). The spacer has a constant shape and size cross-section between the forward and aft dovetail lands. The invention has a particular use with circular arc dovetail slots and roots for which the spacer is a circular arc shaped spacer and the backbone (300), and the forward, mid and aft dovetail lands (302, 304 and 308) are curved along a circular arc normal to and about a radial axis (RA). The spacer tab (320) has a rectangular cross-section (321), extends axially out of a forward face (322) of the forward land (302), and has a tab flat top (324) that is co-planar with the riser flat tops (314) of the risers (312).