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US 2021/0087969 A1Published application
Turbine and turbocharger including the same
AssigneeMitsubishi Heavy Industries Engine & Turbocharger, Ltd.
InventorToyotaka YOSHIDA
Life of this patent
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Abstract
A turbine includes a turbine impeller, a turbine housing disposed so as to cover the turbine impeller and internally forming a scroll flow passage through which an exhaust gas flows, and a throat forming portion which is provided as a separate piece from the turbine housing. The throat forming portion is disposed to face a section of the turbine housing and forms a hub-side wall surface of a throat portion of the scroll flow passage in an axial direction, the section forming a shroud-side wall surface of the throat portion.
Claims11
1-13. (canceled)
A turbine comprising:
- a turbine impeller;
- a turbine housing disposed so as to cover the turbine impeller and including an outlet portion for discharging an exhaust gas having passed through the turbine impeller;
- and
- a heat shield portion positioned on an opposite side of the outlet portion in an axial direction across at least one of the turbine impeller or a scroll flow passage communicating with the turbine impeller,
- wherein the heat shield portion includes:
- a first heat-shielding plate portion which is disposed while facing the scroll flow passage to face a section of the turbine housing and forms a hub-side wall surface of a throat portion of the scroll flow passage in the axial direction, the section forming a shroud-side wall surface of the throat portion;
- and
- a second heat-shielding plate portion arranged to at least partially have a gap with the first heat-shielding plate portion.
5 more elements
Dependencies are inferred from the claim text.