US 11,913,372 B2
Turbocharger
Toru Hoshi, Tokyo (JP); Yukihide Nagayo, Tokyo (JP); Shoeji Nakaye, Tokyo (JP); Toshikazu Mori, Sagamihara (JP); and Takaaki Hagiwara, Sagamihara (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Kanagawa (JP)
Appl. No. 18/018,180
Filed by MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara (JP)
PCT Filed Nov. 25, 2020, PCT No. PCT/JP2020/043800
§ 371(c)(1), (2) Date Jan. 26, 2023,
PCT Pub. No. WO2022/113199, PCT Pub. Date Jun. 2, 2022.
Prior Publication US 2023/0265783 A1, Aug. 24, 2023
Int. Cl. F02B 37/02 (2006.01); F02B 33/40 (2006.01)
CPC F02B 37/025 (2013.01) [F02B 33/40 (2013.01); F05D 2220/40 (2013.01); F05D 2260/961 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A turbocharger comprising:
an impeller which includes a hub provided to be rotatable around a center axis and a plurality of turbine blades arranged on the outside of the hub in a radial direction at intervals in a circumferential direction around the center axis; and
a turbine housing which is disposed on the outside of the impeller in the radial direction and forms a scroll flow path guiding an exhaust gas toward the impeller on the inside of the radial direction while turning the exhaust gas in the circumferential direction,
wherein a flow path width in the circumferential direction of at least one of a plurality of inter-blade flow path portions formed between the plurality of turbine blades is different from a flow path width of another of the plurality of inter-blade flow path portions wherein a radial dimension of the hub of a first of the plurality of inter-blade flow path portions is larger than a radial dimension of the hub of a second of the plurality of inter-blade flow path portions having a larger flow path width than that of the first of the plurality of inter-blade flow path portions.