OIL SUPPLY PORT STRUCTURE OF FUEL TANK

PROBLEM TO BE SOLVED: To provide an oil supply port structure of a fuel tank made of light metal such as aluminum free of obstruction to perform the cap opening/closing operation and allowing maintaining the sealing performance. SOLUTION: A fuel tank has an oil supply cylinder 2 coupled with a tank...

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Bibliographische Detailangaben
Hauptverfasser:	TSUKUI TORU, TAKAGI SATOSHI, HASHIMOTO YASUHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL INSTRUMENTATION OR DASHBOARDS FOR VEHICLES PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an oil supply port structure of a fuel tank made of light metal such as aluminum free of obstruction to perform the cap opening/closing operation and allowing maintaining the sealing performance. SOLUTION: A fuel tank has an oil supply cylinder 2 coupled with a tank body 1 and equipped integrally with an oil supply port 3 in the upper part, is formed from a light metal such as aluminum in the whole structure, includes a cap 11 furnished with a plurality of engaging pawls 13 made of steel to be fitted in the oil supply port 3 and mounted on the rear surface of the cap body 16 in a disc shape and protruding from the center toward the periphery of the cap, wherein the oil supply port 3 comprises a ring-shaped seal surface 4 provided on the oversurface, a notch 7, and a slope 5 which is provided in the under-part of the seal surface 4, admits sliding of the pawls 13 on the 11 while engagement is made with the pawl oversurfaces, and inclines downward in the cap closing direction, and the surface of the slope 5 is subjected to a surface hardening process.