Invention Grant
- Patent Title: Variable capacity turbocharger
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Application No.: US17468678Application Date: 2021-09-08
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Publication No.: US11572823B2Publication Date: 2023-02-07
- Inventor: Katsunori Hayashi , Yuji Kobayashi , Takafumi Ueda , Kazuhiro Onitsuka , Fumihiko Fukuhara
- Applicant: IHI Corporation
- Applicant Address: JP Tokyo
- Assignee: IHI Corporation
- Current Assignee: IHI Corporation
- Current Assignee Address: JP Tokyo
- Agency: Soei Patent & Law Firm
- Priority: JPJP2019-053099 20190320
- Main IPC: F02B37/24
- IPC: F02B37/24 ; F01D17/16

Abstract:
A variable capacity turbocharger includes a variable nozzle unit having a shroud-side ring in which a first bearing hole is provided, a hub-side ring in which a second bearing hole is provided, a nozzle flow path formed between the shroud-side ring and the hub-side ring, and a nozzle vane disposed in the nozzle flow path and supported by both the first bearing hole and the second bearing hole. A turbine housing having a scroll flow path is connected to the nozzle flow path, in which the first bearing hole penetrates the shroud-side ring and communicates with the scroll flow path through a gap between the shroud-side ring and the turbine housing. Additionally, an opening of the first bearing hole on the gap side is smaller than an opening of the first bearing hole on the nozzle flow path side.
Public/Granted literature
- US20210404376A1 VARIABLE CAPACITY TURBOCHARGER Public/Granted day:2021-12-30
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