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AssigneeMTU Motoren- und Turbinen-Union Friedrichshafen GmbH
InventorsJoachim Huster, Hermann Baumann
Estimating the term…
An exhaust gas duct for a row of a plurality of combustion engine cylinders has an exhaust pipe section extending alongside the cylinders and a cooling housing in which the exhaust pipe section is mounted. The cooling housing has a middle longitudinal section and two end sections, one of which is a cover and the other is a mounting connector duct end ring. The middle section has substantially circular end portions with cooling liquid flow ducts therein and a flange portion for mounting to a cylinder head. The middle section is made of extruded standardized stock of light metal which facilitates the manufacture and assembly of the duct. A compact structural volume is also achieved thereby. The extruded stock material assures a good dimensional accuracy, a high surface quality, and good sealing characteristics.
An exhaust gas duct for a row of cylinders of a combustion engine (11) comprising an exhaust gas pipe section (14) for extending alongside said row of cylinders, a cooling housing (13) wherein said exhaust gas pipe section is mounted, a gap (14A) between said cooling housing and said pipe section, said cooling housing comprising an elongated section and two end sections (21, 22) for closing said elongated section, said elongated section comprising an elongated portion (13A) with an approximately circular cross-section and a flange portion (19) forming, an integral unit with said elongated portion for mounting said exhaust gas duct (12) to said combustion engine (11), cooling liquid flow channels(15, 16) in said cooling housing, means (24A, 21B) for interconnecting said cooling liquid flow channels of said cooling housing, a longitudinal wall (17) in said cooling housing between said flange portion (19) and said elongated portion (13A), exhaust gas flow passages (20) through said flange portion (19), through said longitudinal wall (17), and through said exhaust gas pipe section (14), for passing exhaust gas from said cylinders (20A) into said pipe section (14), said end sections (21, 22) comprising means (22A, 21E) for mounting said pipe section (14) in said cooling housing.
Dependencies are inferred from the claim text.