MANUFACTURING METHOD OF TURBINE HOUSING AND TURBINE HOUSING

PROBLEM TO BE SOLVED: To provide a manufacturing method of a turbine housing which inhibits supercooling of an exhaust gas, and to provide the turbine housing.SOLUTION: In a turbine housing 31, an exhaust gas passage 41 for passing an exhaust gas and a coolant passage 37 for circulating an engine co...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAGISHI REONA, IIDA TATSUO, SADAMITSU TAKAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR BLASTING CHEMISTRY COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a manufacturing method of a turbine housing which inhibits supercooling of an exhaust gas, and to provide the turbine housing.SOLUTION: In a turbine housing 31, an exhaust gas passage 41 for passing an exhaust gas and a coolant passage 37 for circulating an engine coolant are formed therein. In the manufacturing of the turbine housing 31, firstly, a housing body 43, in which the exhaust gas passage 41 and the coolant passage 37 are formed, is formed. Then, a surface layer 41a made of a material having a heat transfer rate lower than that of the housing body 43 is formed on a surface of the exhaust gas passage 41 in the housing body 43.