US 11,885,343 B2
Centrifugal compressor
Ryota Sakisaka, Tokyo (JP); Takashi Fujiwara, Tokyo (JP); Atsushi Yonemura, Tokyo (JP); and Takahiro Bamba, Tokyo (JP)
Assigned to IHI Corporation, Tokyo (JP)
Filed by IHI Corporation, Tokyo (JP)
Filed on Dec. 13, 2021, as Appl. No. 17/643,943.
Application 17/643,943 is a continuation of application No. PCT/JP2020/037894, filed on Oct. 6, 2020.
Claims priority of application No. 2019-185786 (JP), filed on Oct. 9, 2019.
Prior Publication US 2022/0099101 A1, Mar. 31, 2022
Int. Cl. F04D 29/46 (2006.01); F04D 27/02 (2006.01); F04D 17/10 (2006.01); F04D 27/00 (2006.01); F01D 17/14 (2006.01); F04D 29/42 (2006.01); F04D 29/68 (2006.01); F04D 29/66 (2006.01)
CPC F04D 27/0253 (2013.01) [F04D 17/10 (2013.01); F04D 27/003 (2013.01); F01D 17/141 (2013.01); F04D 29/4213 (2013.01); F04D 29/464 (2013.01); F04D 29/667 (2013.01); F04D 29/685 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A centrifugal compressor comprising:
a housing including an intake flow path;
a compressor impeller disposed in the intake flow path;
an accommodation chamber formed upstream of the compressor impeller in a flow of an intake air in the housing; and
a movable member disposed in the accommodation chamber and configured to be movable in a radial direction of the compressor impeller between a retracted position where the movable member is retracted from the intake flow path and a protruding position where the movable member protrudes from the accommodation chamber into the intake flow path,
wherein the accommodation chamber includes a wall surface positioned upstream of the movable member and facing the movable member in an axial direction of the compressor impeller, and
wherein the wall surface includes a contacting portion that is contactable with the movable member in the axial direction, and a non-contacting portion that is non-contactable with the movable member, the non-contacting portion being a depressed portion that is depressed from the wall surface toward an inlet of the housing.