VENT DEVICE FOR VEHICULAR FUEL TANK

PROBLEM TO BE SOLVED: To provide a vent device for a vehicular fuel tank which can effect puff loss and prevent excess oil supply easily and with certainty. SOLUTION: Respective one ends of first and second vent pipes 4, 5 are connected to inner and upper portions of both sides of a fuel tank 1, whi...

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Bibliographische Detailangaben
Hauptverfasser:	HORIUCHI MASAAKI, OTA ATSUSHI, CHO TAKESHI, GOMA HISASHI, ENDO YASUNOBU
Format:	Patent
Sprache:	eng
Schlagworte:	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 BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a vent device for a vehicular fuel tank which can effect puff loss and prevent excess oil supply easily and with certainty. SOLUTION: Respective one ends of first and second vent pipes 4, 5 are connected to inner and upper portions of both sides of a fuel tank 1, while one end of a third vent pipe 6 is connected to a center and upper portion of the fuel tank. Cut valves 7, 8 are arranged on one ends of the first and second vent pipes, while an excess oil supply preventive valve 9 is arranged on one end of the third vent pipe. The other ends of the first and second vent pipes are connected to steam separators 10, 11 connected to the fuel tank. Both steam separators are connected to a first check valve 12 which is connected to a second check valve 13. The other end of the third vent pipe is connected to a portion between the first and second check valves. Total set pressure of the first and second check valves is larger than a head pressure A when the fuel tank is filled with fuel.