Device for preventing fuel vapor from escaping to the outside air from a fuel tank

Patent · Tue Apr 21 04:00:00 EDT 1987

OSTI ID:6547565

Uranishi, K; Ito, T; Tanahashi, T

A device is described for preventing fuel vapor from escaping to the outside air from a fuel tank, comprising: a vehicle body having a recess formed thereon; a lid pivotally connected to the vehicle body and normally covering the recess; a fuel inlet pipe connected to the fuel tank and having a fuel inlet open to the recess, the fuel inlet pipe extending to a bottom interior of the fuel tank; a cap detachably attached to the fuel inlet and arranged in the recess; a canister having activated carbon therein; a control valve having a valve port connected to an upper interior portion of the fuel tank and connected to an upper interior portion of the fuel inlet pipe, the valve port connecting both the interior of the fuel tank and the interior of the fuel inlet pipe to the canister; a valve body mounted in the control valve, the valve body connected to the lid to cooperate with the lid to close the valve port when the lid is closed and to open the valve port when the lid is opened.

• Assignee: Toyota Jidosha Kabushiki Kaisha, Aichi
• Patent Number(s): US 4659346
• OSTI ID: 6547565
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330603* -- Vehicle Design Factors-- Engine System
330800 -- Emission Control-- Alternative Fuels
ACTIVATED CARBON
ADSORBENTS
AUTOMOTIVE FUELS
CARBON
CLOSURES
CONTAINERS
CONTROL EQUIPMENT
COVERINGS
ELEMENTS
ENGINES
EQUIPMENT
EVAPORATION
FLOW REGULATORS
FLUIDS
FUEL SYSTEMS
FUELS
GASES
INTAKE STRUCTURES
MECHANICAL STRUCTURES
NONMETALS
PHASE TRANSFORMATIONS
PIPES
TANKS
VALVES
VAPORS
VEHICLES