CASTING METHOD AND MANIFOLD CAST WITH CONDUITS EFFECTIVE FOR REMOVING A CORE FROM THE CAST WITHOUT FORMING EXTRANEOUS HOLES IN THE BODY OF THE MANIFOLD

摘要

Casting method and cast manifold are provided. The method allows configuring conduits, such as conduits (46, 48) in a fuel feed boss (20) and/or a base rocket (13), which are part of the manifold for removing a ceramic core (44) from the cast without forming extraneous holes in the body of the manifold. Absence of such extraneous holes in turn allows eliminating sealing plugs and welds, which otherwise would be needed for sealing the extraneous holes.