公开(公告)号：US20180230836A1

公开(公告)日：2018-08-16

申请号：US15895068

申请日：2018-02-13

Applicant: ROLLS-ROYCE plc

Inventor： Ian TIBBOTT ,  Roderick M. TOWNES ,  Andrew KING

IPC: F01D9/04 ,  F01D25/12

CPC classification number: F01D9/041 ,  F01D9/065 ,  F01D25/12 ,  F05D2220/32 ,  F05D2240/12 ,  F05D2240/80 ,  F05D2240/81 ,  F05D2260/201 ,  F05D2260/202 ,  F05D2260/205

Abstract: There is disclosed a stator vane section for a gas turbine engine. The stator vane comprises an aerofoil, a first platform at a radial end of the aerofoil, a cooling chamber within the aerofoil and a guide duct within the cooling chamber. An impingement chamber is defined between the first platform and a perforated impingement plate provided on the first platform to receive cooling air through the impingement plate. The guide duct is coupled to the first platform so that a collecting chamber extending around the guide duct is defined between the guide duct and the first platform and the collecting chamber is configured to receive cooling air from the impingement chamber via a plurality of collecting channels, and is configured to direct cooling air to the cooling chamber.