초록 ▼

An apparatus is provided for controlling discharge of fuel vapor from the fuel tank. The apparatus comprises a housing defining an interior region, an assembly for defining an outer and an inner flow passageway for fuel vapor in the interior region, an assembly for selectively blocking flow of fuel

An apparatus is provided for controlling discharge of fuel vapor from the fuel tank. The apparatus comprises a housing defining an interior region, an assembly for defining an outer and an inner flow passageway for fuel vapor in the interior region, an assembly for selectively blocking flow of fuel vapor through the outer flow passageway, the blocking assembly being movable between an unblocking position and a blocking position, and an assembly for yieldably biasing the blocking assembly toward the unblocking position.

대표청구항 ▼

An apparatus for controlling discharge of fuel vapor from a fuel tank, the apparatus comprising a housing communicating with the fuel tank and defining an interior region, the housing being formed to include an inlet for receiving fuel vapor in the interior region from the fuel tank and an outlet fo

An apparatus for controlling discharge of fuel vapor from a fuel tank, the apparatus comprising a housing communicating with the fuel tank and defining an interior region, the housing being formed to include an inlet for receiving fuel vapor in the interior region from the fuel tank and an outlet for discharging fuel vapor from the interior region to a vapor recovery device, a flow baffle positioned in the interior region in spaced-apart relationship with the housing to define an annular space providing an outer flow passageway, the flow baffle being formed to include an inner flow passageway and a low flow orifice communicating fuel vapor to the inner flow passageway orifice, a valve member formed to include a high flow orifice having a diameter greater than that of the low flow orifice, the valve member being movable in the interior region in response to fuel vapor pressure between an unblocking position out of engagement with the flow baffle so that fuel vapor passing through the high flow orifice flows along both the inner and outer flow passageways and a blocking position engaging the flow baffle so that fuel vapor flowing through the high flow orifice flows only through the inner flow passageway to reduce the flow of fuel vapor to the vapor recovery device, and means for yieldably biasing the valve member toward the unblocking position.