US 2026/0153239 A1Published application

Cylindrical body

AssigneeMitsubishi Heavy Industries Aero Engines, Ltd.

InventorsYohei FUJIMOTO, Ichiro MIYOSHI, Yutaka IKEDA

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Abstract

A cylindrical body includes a plurality of annular members. The annular member each have an outer circumferential wall section, an inner circumferential wall section which is disposed further inward than the outer circumferential wall section and defines a cooling flow path between the inner circumferential wall section and the outer circumferential wall section, and a plurality of cooling fins which are disposed in the cooling path and connect the other circumferential wall section and the inner circumferential wall section; the outer circumferential wall section has a plurality of inlet holes which cause compressed air to be introduced from an intra-case flow path to the cooling path; the inner circumferential wall section has a plurality of outlet holes which cause compressed air to be discharged from the cooling path to a combustion chamber; and the plurality of annular members are connected to each other along an axis X.

Claims8

Dependent claims

A cylindrical body that extends along an axis, in which a first fluid flows in an outer side region and a second fluid having a higher temperature than the first fluid flows in an inner side region, the cylindrical body comprising:

a plurality of annular members,
wherein each of the annular members includes
an annular outer wall portion that is in contact with the outer side region,
an annular inner wall portion that is in contact with the inner side region and is disposed inside the outer wall portion to define a flow path between the outer wall portion and the inner wall portion, and
a plurality of cooling portions that are disposed in the flow path and connect the outer wall portion and the inner wall portion to each other,
the outer wall portion includes a plurality of inlet holes through which the first fluid flows from the outer side region into the flow path,
the inner wall portion includes a plurality of outlet holes through which the first fluid flows out from the flow path into the inner side region, and
the cylindrical body is configured by the plurality of annular members connected to each other along the axis.

5 more elements

Dependencies are inferred from the claim text.