COOLING ARRANGEMENT

专利名称：COOLING ARRANGEMENT发明人：Martin MOTTRAM申请号：US15351012申请日：20161114

公开号：US20170167272A1公开日：20170615

专利附图：

摘要：An aerofoil for a gas turbine engine including a pressure wall and a suction walland defining leading and trailing edge, the walls define a passage into which is supplied acooling fluid, an array of cooling holes is provided through at least one of the walls toallow the cooling fluid to flow from an interior surface to an exterior surface. The array of

holes include two groups, the holes of each group are angled to intersect the holes ofthe other group and are characterised in that the holes of at least one of the groupsincludes two or more holes at different angles to one another to vary the porosity of thewall to account for otherwise varying wall temperatures. This arrangement also allowseither less coolant mass flow to maintain a constant metal temperature, or a lower metaltemperature for a given coolant mass flow.

申请人：ROLLS-ROYCE plc

地址：London GB

国籍：GB

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