Zentrifugalverdichter und Kühlvorrichtung

Details

Veröffentlichungs-Nr.

EP4745410

Anmeldetag

3. Juni 2025

Veröffentlichung

26. März 2026

Rechtsraum

EP

IPC

F04D29/28(DANFOSS AS et al.)(IHI CORP et al.)

Abstract

A technique by which the performance of a closed impeller of a centrifugal compressor can be improved is provided. A compressor 10 according to an embodiment of the present disclosure includes an impeller 200, and a casing 100 configured to house the impeller 200. The impeller 200 includes a hub 210 having a meridional plane 211, a plurality of blades 220 provided on the meridional plane 211, and a shroud 230 provided on tips of the plurality of blades 220 so as to cover the meridional plane 211. The shroud 230 has a first passage 235 penetrating between an inner surface of the shroud 230 facing the meridional plane 211 and an outer surface of the shroud 230 facing an inner surface of the casing 100. The first passage 235 has a first opening 235B in the outer surface of the shroud 230 and a second opening 235A in the inner surface of the shroud 230. In a cross section including an axis AX of a rotating shaft 250 of the impeller 200, the first passage 235 is inclined such that a center 235Bc of the first opening 235B is located on an inlet 200in side of the impeller 200 relative to a center 235Ac of the second opening 235A.

Anmelder

Firma

DAIKIN INDUSTRIES, LTD.

Land

🇯🇵 Japan