EP 2992982 A1 20160309 - COMPONENTS FOR CASTING OF ENGINE PARTS
Title (en)
COMPONENTS FOR CASTING OF ENGINE PARTS
Title (de)
KOMPONENTEN ZUM GIESSEN VON MASCHINENTEILEN
Title (fr)
COMPOSANTS POUR LA COULÉE DE PIÈCES DE MOTEUR
Publication
Application
Priority
GB 201415725 A 20140905
Abstract (en)
A process for investment casting of an engine part, such a high-performance turbine blade (B), having at least one internal cavity (C), in which at least one ceramic core member (10) defining the or a respective cavity (C) is maintained in a desired spatial position relative to at least one other component, e.g. another core member (10), of or within a die during at least part of the casting procedure, the at least one core member (10) being maintained in the desired spatial position by at least one support element (20a, 20b, 20c), wherein the or each support element (20a, 20b, 20c) comprises an elongate member, e.g. a length of platinum wire, configured to include therein at least one turn or coil (22, 24) with opposed sides (30, 32), the elongate member being positioned between the respective core member (10) and respective other component (10) with the opposed sides of its at least one turn or coil (22, 24) in space-maintaining relationship between the respective core member (10) and respective other component (10).
IPC 8 full level
B22C 9/04 (2006.01); B22C 9/10 (2006.01); B22C 21/14 (2006.01)
CPC (source: EP)
B22C 9/043 (2013.01); B22C 9/108 (2013.01); B22C 21/14 (2013.01)
Citation (search report)
- [XA] JP 2012106256 A 20120607 - HONDA MOTOR CO LTD & DATABASE WPI Week 201244, Derwent World Patents Index; AN 2012-G41009
- [XA] GB 847152 A 19600907 - LUDWIG FOBUS BETR S G M B H
- [XA] GB 165039 A 19220918 - SUEDDEUTSCHE GIESSEREIBEDARFSZ, et al
- [XA] GB 191220263 A 19130123 - SONNET HEINRICH [RU]
- [XA] GB 2118078 A 19831026 - HOWMET TURBINE COMPONENTS
- [XA] US 2009000754 A1 20090101 - PIGGUSH JUSTIN D [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2992982 A1 20160309; EP 2992982 B1 20210203; GB 201415725 D0 20141022
DOCDB simple family (application)
EP 15181567 A 20150819; GB 201415725 A 20140905