Turbine Housing and Washing Method of Turbine Housing
AssigneeMarelli Corporation
InventorHiroyuki OKAMOTO
Life of this patent
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Abstract
A turbine housing is provided with an inner pipe forming a spiral-shaped exhaust gas flow path, an exhaust-air-inlet-side flange serving as an exhaust gas inlet to the inner pipe, and an outer pipe that, together with the exhaust-air-inlet-side flange, covers and seals the inner pipe. The outer pipe has an opening through which the washing fluid can pass through and a closing member that closes the opening, and a space through which the washing fluid can pass through is formed between the inner pipe and the exhaust-air-inlet-side flange.
Claims6
A turbine housing comprising:
- an inner pipe forming a spiral-shaped exhaust gas flow path;
- an exhaust-air-inlet-side flange forming an exhaust gas inlet to the inner pipe;
- and
- an outer pipe configured to, together with the exhaust-air-inlet-side flange, cover and seal the inner pipe, wherein
- the outer pipe has an opening and a closing member for closing the opening, the opening being configured such that the washing fluid can pass through, and
- a space is formed between the inner pipe and the exhaust-air-inlet-side flange, the space being configured such that the washing fluid can pass through.
A washing method of a turbine housing, the turbine housing being provided with a scroll portion forming a spiral-shaped exhaust gas flow path between an exhaust-air-inlet-side flange forming an exhaust gas inlet and an exhaust-air-outlet-side flange forming the exhaust gas outlet,
- the scroll portion being formed of an inner pipe, the inner pipe being at least formed of sheet-metal-made inner-pipe divided bodies divided into a plurality of parts, and
- the turbine housing having a double-shell structure with a space between the inner pipe and an outer pipe such that the exhaust gas is discharged via a turbine wheel to an exhaust air outlet side, the inner pipe being covered by the outer pipe formed of sheet-metal-made outer pipe divided bodies divided into a plurality of parts so as to form the space between the inner pipe and the outer pipe, wherein
- after the plurality of parts forming the turbine housing are assembled and subjected to processing, the washing fluid is supplied from one of a liquid supply/discharge port provided at a position facing the exhaust gas inlet of the outer pipe or the space provided between a lower end portion of the inner pipe on an exhaust-air-inlet side and the exhaust-air-inlet-side flange, and the washing fluid is allowed to flow out from other of the liquid supply/discharge port or the space together with extraneous matter generated during the processing.
Dependencies are inferred from the claim text.