SEALING STRUCTURE OF JOINED PART, AND GASKET

PROBLEM TO BE SOLVED: To provide a sealing structure of a joined part capable of always maintaining high sealing performance of a joined surface in a wide temperature change area with respect to the thermal deformation of the joined part.SOLUTION: In the joined part 12 of engine exhaust pipes 10a an...

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Bibliographische Detailangaben
Hauptverfasser:	OSAKO MASAKI, MIZUTA TORU, YOKOYAMA TAKAO
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING COMBUSTION ENGINES CYLINDERS CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a sealing structure of a joined part capable of always maintaining high sealing performance of a joined surface in a wide temperature change area with respect to the thermal deformation of the joined part.SOLUTION: In the joined part 12 of engine exhaust pipes 10a and 10b, a gasket 20 is provided between the joined surfaces 16a and 16b of flanges 14a and 14b. The gasket 20 includes a metal base member 22 and metal gasket components 24a to 24d. The gasket components 24a to 24d are formed into ring shapes, and arranged concentric to each other around a center line C. The gasket components 24a to 24d have liner expansion coefficients where a heat changing amount is equal to that after thermal deformation of a joint surface area in which the components are located. Thus, even after the thermal deformation of the joined surface, necessary sealing surface pressure is secured in all the regions of the joined surface.