US 12,221,890 B2
Turbine and turbocharger
Dai Kanzaki, Tokyo (JP)
Assigned to IHI Corporation, Tokyo (JP)
Filed by IHI Corporation, Tokyo (JP)
Filed on Jan. 23, 2024, as Appl. No. 18/419,938.
Application 18/419,938 is a continuation of application No. PCT/JP2022/040920, filed on Nov. 1, 2022.
Claims priority of application No. 2021-182419 (JP), filed on Nov. 9, 2021.
Prior Publication US 2024/0200456 A1, Jun. 20, 2024
Int. Cl. F01D 1/02 (2006.01); F01D 9/02 (2006.01); F01D 25/24 (2006.01)
CPC F01D 1/023 (2013.01) [F01D 9/026 (2013.01); F01D 25/24 (2013.01); F05D 2210/12 (2013.01); F05D 2220/40 (2013.01); F05D 2240/12 (2013.01); F05D 2240/30 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A turbine, comprising:
a shaft;
a turbine wheel mounted on one side of the shaft;
an accommodating portion configured to accommodate the turbine wheel;
a first turbine scroll flow passage that extends around the turbine wheel on a radially outer side, and communicates with the accommodating portion;
a second turbine scroll flow passage that extends around the turbine wheel on the radially outer side, communicates with the accommodating portion, and is arranged on the one side with respect to the first turbine scroll flow passage;
a first tongue portion that is provided at a position facing a downstream end of the first turbine scroll flow passage, and is inclined to one side of the turbine wheel in a circumferential direction as extending toward the one side; and
a second tongue portion that is provided at a position facing a downstream end of the second turbine scroll flow passage, and is inclined to another side of the turbine wheel in the circumferential direction as extending toward the one side,
wherein the first tongue portion and the second tongue portion extend in a straight line when viewed in a radial direction of the turbine wheel.