US 12,012,958 B2
Centrifugal compressor
Takahiro Ueno, Tokyo (JP); Atsushi Yonemura, Tokyo (JP); and Ryota Sakisaka, Tokyo (JP)
Assigned to IHI Corporation, Tokyo (JP)
Filed by IHI Corporation, Tokyo (JP)
Filed on Aug. 2, 2022, as Appl. No. 17/816,770.
Application 17/816,770 is a continuation of application No. PCT/JP2021/005341, filed on Feb. 12, 2021.
Claims priority of application No. 2020-087639 (JP), filed on May 19, 2020.
Prior Publication US 2022/0372977 A1, Nov. 24, 2022
Int. Cl. F04C 18/02 (2006.01)
CPC F04C 18/0215 (2013.01) [F04C 18/0284 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A centrifugal compressor comprising:
a scroll housing including a scroll flow path;
a shroud piece attached to the scroll housing at a position radially inside the scroll flow path and including a shroud portion that faces a compressor impeller in a radial direction; and
a throttling portion arranged in a gap formed between the scroll housing and the shroud piece,
wherein the scroll housing includes a contacting portion that is arranged radially outside the throttling portion and that contacts the shroud piece in an axial direction of the compressor impeller, and
the contacting portion contacts an axial end surface of the shroud piece in the axial direction, the axial end surface forming the gap.