Nissan Motor Company Limited

Yuji Itakura

Takahiro Yamafuji

Masaya Furushou

Katsunori Ozaki

The present invention is accomplished by a canister structure for an internal combustion engine that includes a container having a gas passage therein through which gas containing evaporative fuel flows from a first end to a second end, a purge portion disposed on the container and connected to the first end through which vacuum pressure is applied into the gas passage, a charge portion disposed on the container and connected to the first end through which the gas is introduced into the gas passage, a drain portion disposed on the container and connected to the second end through which the gas passage is made open to the atmosphere, and an adsorbent material, disposed in the gas passage, to temporarily adsorb the evaporative fuel, whose specific heat on the side of the second end is made higher relative to that on the side of the first end.

Canister structure for internal combustion engine

An evaporative emission control apparatus for a motor vehicle includes a fuel tank having a tank shell to store fuel therein, a canister disposed completely within the fuel tank to adsorb and temporarily store evaporative fuel generated in the fuel tank, and a bracket that is secured to the fuel tank to support the canister apart from the tank shell. The outer surface of the canister is set apart from the inner surface of the tank shell, so that the canister is less influenced by the environment temperature around the fuel tank, and so that the adsorption of the evaporative fuel is kept stable.

Evaporative emission control apparatus for motor vehicle

An evaporation control apparatus is provided that reliably suppresses the emission of fuel components into the atmosphere. The evaporation control apparatus has a canister and a control valve that are configured as a unit to be disposed within the fuel tank so that the connection path between the canister and the control valve is completely enclosed within the fuel tank Therefore, fuel components are prevented from permeating the hoses and joints connecting the canister and the control valve In the unlikely event that fuel components should permeate the case body A of the control valve emission of the fuel components into the atmosphere will be suppressed.

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Milton Keynes, United Kingdom

Yuji Itakura