US 12,404,773 B2
Gas turbine engine
Hiromitsu Arai, Kobe (JP); Ryozo Tanaka, Kobe (JP); Tomoki Taniguchi, Kobe (JP); and Yoshihiko Mutou, Kobe (JP)
Assigned to KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe (JP)
Filed by KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe (JP)
Filed on Jun. 26, 2024, as Appl. No. 18/755,155.
Application 18/755,155 is a continuation of application No. PCT/JP2022/045179, filed on Dec. 7, 2022.
Claims priority of application No. 2021-212733 (JP), filed on Dec. 27, 2021.
Prior Publication US 2024/0344482 A1, Oct. 17, 2024
Int. Cl. F01D 5/08 (2006.01); F02C 7/18 (2006.01); F02C 7/05 (2006.01); F02C 7/052 (2006.01); F23R 3/14 (2006.01)
CPC F01D 5/081 (2013.01) [F02C 7/18 (2013.01); F02C 7/05 (2013.01); F02C 7/052 (2013.01); F05D 2260/232 (2013.01); F05D 2260/607 (2013.01); F23R 3/14 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A gas turbine engine comprising:
a compressor which pressurizes air taken in from an ambient environment;
a combustor which combusts an air-fuel mixture containing a fuel and the air pressurized by the compressor;
a turbine powered by combustion gas produced by the combustor;
a cooling air supply passage which feeds the air from the compressor, as a cooling medium, to the turbine by swirling the air in a circumferential direction, the cooling air supply passage including:
an entry zone to which the air enters; and
a swirl zone in which the air flowing past the entry zone is circumferentially redirected with respect to an engine rotational axis;
a chamber which branches from the swirl zone and captures foreign particles in the air, the chamber being formed to meet the relation: α≥β where, when viewed in a radial direction with respect to the engine rotational axis, α is an angle defined by the swirl zone relative to an entry direction and β is an angle defined between the chamber and the swirl zone; and
a pre-swirl nozzle member including a ring-shaped block element in which a plurality of cooling air supply bores defining the cooling air supply passage are formed, such that the chamber is defined in the pre-swirl nozzle member.