Title:
CENTRIFUGAL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/225163
Kind Code:
A1
Abstract:
This centrifugal compressor comprises: a disc wheel having a body portion including front and rear surfaces oriented towards the opposite sides of each other in an axial direction, and a side surface connected to the front and rear surfaces; a first wall part facing the front surface and including a first wall surface that together with the front surface forms a flow channel through which a working fluid flows; a second wall part facing the rear surface and including a second wall surface that together with the rear surface forms a first gap; and a protruding wall part provided farther toward the diametrally outer side than the side surface of the disc wheel, so as to protrude from the second wall surface toward the first wall surface; the protruding wall part including a third wall surface extending axially from the second wall surface and facing the side surface of the disc wheel, the third wall surface extending farther axially toward the first wall surface than a part where the front surface and the side surface connect, and the third wall surface and side surface together forming a second gap through which the flow channel and the first gap communicate.
Inventors:
BYON JINHEE (JP)
KATOU TAKEHIKO (JP)
KATOU TAKEHIKO (JP)
Application Number:
PCT/JP2019/014536
Publication Date:
November 28, 2019
Filing Date:
April 01, 2019
Export Citation:
Assignee:
IHI CORP (JP)
International Classes:
F04D29/08; F04D29/42; F04D29/44
Foreign References:
| JPS50138410A | 1975-11-05 | |||
| JPS53138206U | 1978-11-01 | |||
| JP2009019564A | 2009-01-29 | |||
| JP2013221454A | 2013-10-28 | |||
| JPH1089291A | 1998-04-07 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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