Fuel storage device comprising a device for managing gases from a canister

The fuel storage device (1) according to the preceding claim, wherein the separation unit (14) is a membrane separation unit.

The fuel storage device (1) according to any one of the preceding claims, wherein said at least one solenoid valve (24) is a three-way solenoid valve.

The fuel storage device (1) according to any one of the preceding claims, wherein the purge pump (16) has a nominal flow rate of between 5 and 25 liters per minute.

The fuel storage device (1) according to any one of the preceding claims, comprising an electronic control unit (28) for electronically controlling the operating status of the purge pump (16) and the opening configuration of said at least one solenoid valve (24).

The fuel storage device (1) according to any one of the preceding claims, comprising several separation units (14) mounted in series, a first separation unit (14) being configured to receive a mixture of air and hydrocarbon vapors from the canister (10), at least one second separation unit being configured to receive a first hydrocarbon-poor fraction from another separation unit and to separate said poor fraction into a second hydrocarbon-rich fraction and a second hydrocarbon-poor fraction, the hydrocarbon-rich fraction being sent to the fuel tank (2).

The fuel storage device (1) according to any one of the preceding claims, comprising a third solenoid valve arranged on a fluid connection between the fuel tank (2) and the canister (10).

A method for managing a mixture of air and hydrocarbon vapors from a canister (10) of a fuel storage device (1) according to any one of the preceding claims, the method comprising the following steps:

• controlling the opening configuration of said at least one solenoid valve (24) to allow selective passage of the mixture of air and hydrocarbon vapors either to the fuel tank (2) in the event of a leak test of the fuel tank (2), or to the separation unit (14) in the event of canister purging (10),
• activating the purge pump (16) for purging the canister (10), and
• delivering the mixture of air and hydrocarbon vapors from the canister (10) to either the separation unit (14) or to the fuel tank (2), depending on the opening configuration of said at least one solenoid valve (24).

A device for managing a mixture of air and hydrocarbon vapors from a motor vehicle canister (10), the management device comprising:

• at least one air and hydrocarbon vapor separation unit (14) configured to receive the mixture of air and hydrocarbon vapor from the canister (10) and to separate said mixture into a hydrocarbon-rich fraction and a hydrocarbon-poor fraction, the hydrocarbon-rich fraction being sent to a fuel tank (2),
• a purge pump (16) for purging the canister (10) configured to send the mixture of air and hydrocarbon vapors from the canister (10) to the separation unit (14), and
• at least one solenoid valve (24) arranged between the purge pump (16) and the separation unit (14), characterized in that said at least one solenoid valve (24) is configured to selectively send the mixture of air and hydrocarbon vapors either to the separation unit (14) or to the fuel tank (2).