Sheet metal turbine housing and related turbocharger systems
AssigneeGarrett Transportation I Inc.
InventorsKatsumi Azuma, Kouichirou Ishihara
Life of this patent
Estimating the term…
Abstract
Turbine housing assemblies and related turbocharger systems are provided. One exemplary turbine housing assembly includes a bypass valve assembly structure including a guide portion, an inner sheet metal shell including an inner inlet portion and a volute portion providing an outer contour of a volute, wherein an end of the inner inlet portion is surrounded by the guide portion and spaced apart from the bypass valve assembly structure, and an outer sheet metal shell radially surrounding at least a portion of the volute portion and including an outer inlet portion surrounding the inner inlet portion and contacting the guide portion of the bypass valve assembly structure.
Claims17
A turbine housing assembly comprising:
- a bypass valve assembly structure including a guide portion;
- an inner sheet metal shell including an inner inlet portion and a volute portion providing an outer contour of a volute, wherein an end of the inner inlet portion is surrounded by the guide portion and spaced apart from the bypass valve assembly structure;
- and
- an outer sheet metal shell radially surrounding at least a portion of the volute portion and including an outer inlet portion surrounding the inner inlet portion and contacting the guide portion of the bypass valve assembly structure, wherein:
- the end of the inner inlet portion extends into the bypass valve assembly structure by a first distance;
- the end of the outer inlet portion extends into the bypass valve assembly structure by a second distance;
- and
- the first distance is greater than the second distance.
A turbine housing assembly comprising:
- a cast metal structure having an inlet opening and a bypass opening transverse to the inlet opening;
- an inner sheet metal shell including an inner base portion having an end disposed within the inlet opening and a volute portion that defines an outer contour of a volute;
- and
- an outer sheet metal shell that surrounds the volute portion and includes an outer base portion that circumscribes the inner base portion, wherein the outer base portion is joined to the cast metal structure and the end of the inner base portion is freestanding with respect to the cast metal structure, wherein an extension of the end of the inner base portion into the inlet opening is greater than an extension of the outer base portion into the inlet opening.
A turbine housing assembly comprising:
- a cast bypass valve assembly structure including a guide portion about an inlet opening and a bypass opening transverse to the inlet opening;
- an inner sheet metal shell including an inner inlet portion and a volute portion that defines an outer contour of a volute, wherein an end of the inner inlet portion is disposed within the inlet opening and surrounded by the guide portion;
- and
- an outer sheet metal shell that surrounds the volute portion and includes an outer inlet portion circumscribing the inner inlet portion and contacting the guide portion of the bypass valve assembly structure, wherein the outer inlet portion is joined to the bypass valve assembly structure, an extension of the end of the inner inlet portion into the inlet opening is greater than an extension of the outer inlet portion into the inlet opening, and the end of the inner inlet portion is freestanding with respect to the bypass valve assembly structure.
Dependencies are inferred from the claim text.