Abstract: The present disclosure refers to a fuel tank for a vehicle equipped with a valve housing and a ventilation opening that has a ventilation valve placed on an upper opening of the tank and which projects into the tank interior. Additionally, the wall of the valve housing is interspersed with at least one wall opening, and a float has been arranged in the valve housing that can be moved from a resting to a closing position and has a sealing element on its upper end. The float is in a lower place in the valve housing when it is in its resting position and the sealing element releases the ventilation opening. The float, when in a closing position, closes the ventilation opening with its sealing element as soon as the closing level is reached.

Abstract: A ventilation device includes a ventilation opening closable by a float in a valve housing interior, an inflow opening in an upper portion, at least one outflow opening in a lower portion that can be closed by a sealing element of a shut-off valve. A storage container is connected through a conduit to the valve housing interior so that fuel can flow from the housing interior into the storage container.

Abstract: A vent valve for a fuel tank of a motor vehicle includes a housing, a cage in the housing, a movable float, and a sealing arrangement with an at least three-stage reopening operation. The sealing arrangement includes multiple movable supports defining openings of varying cross-sectional area sequentially operable.

Abstract: The invention refers to a fuel tank for a vehicle equipped with a valve housing (8) and a ventilation opening (11) that has a ventilation valve (6) placed on an upper opening of the tank and projects into the tank interior, in which case the wall of the valve housing (8) is interspersed with at least one wall opening (17), a float 19 has been arranged in the valve housing (8) that can be moved from a resting to a closing position and has a sealing element (21) on its upper end, the float (19) is in a lower place in the valve housing (8) when it is in its resting position and the sealing element (21) releases the ventilation opening (11), the float (19), when in a closing position, closes the ventilation opening (11) with its sealing element (21) as soon as the closing level (27) is reached.

Abstract: The invention refers to a ventilation device for a fuel tank of a vehicle that comprises a valve housing (15) with a ventilation opening (8), a float (23) moveable between a resting position and a closing position arranged in the valve housing (15) and a sealing element (30) placed on the upper side of the float (23) that acts together with the ventilation opening (8), in which case the float (23)—when it is in its resting position—is arranged in a lower position in the valve housing (15) and releases the sealing element (20) and the ventilation opening (8), in which case the float (23)—when it is in its closing position—presses against the closing element (20) against the ventilation opening (8) owing to lifting forces and is characterized by the following additional embodiment: there is at least one inflow opening (24) to allow gas and fuel to flow through, located in the circumferential wall of the valve housing (15), in one single upper area close to the ventilation opening (8), there is a separate sto

Abstract: The invention relates to a vent valve for the fuel tank of a motor vehicle, with a housing (2) having a vent opening (6), and a float (14) arranged in the housing, supporting a sealing arrangement (13, 70) on its upper side interacting with the vent opening (6), where the float (14) is movable in the direction of the center longitudinal axis (15) of the valve housing. The sealing arrangement has at least three stages.