The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 2019
Filed:
Jul. 22, 2016
Rolls-royce Plc, London, GB;
Christopher Neale, Bristol, GB;
ROLLS-ROYCE plc, London, GB;
Abstract
Method for casting a turbine component body including; providing a mould defining the external geometry of the component body and providing a core defining an internal geometry of the component body. The core includes a main body defining an internal chamber of the component body and an array of pedestals extending between opposing walls of the internal chamber. A molten material is cast between the mould and the core and the core is then removed after the molten material has solidified. The core is provided using a core die which has an inlet for receiving fluid core material. The core die is configured such as to provide a gradient of injection pressure which decreases from a first position proximal to the inlet to a second position distal to the inlet. The pedestal array is arranged such that the separation of the pedestals increases between the first and second positions.