A floor structure of a rear vehicle body, in which at least one component including a high-voltage battery is mounted in a rear portion of a vehicle body, includes: a first cross member coupled to each front portion of first and second rear side members in a vehicle width direction; and a second cross member coupled to the first and second rear side members at a rear of the corresponding first cross member in the vehicle width direction, wherein a space in which the at least one component is mounted is formed between the first cross member and the second cross member.

A floor structure of a rear vehicle body, in which at least one component including a high-voltage battery is mounted in a rear portion of a vehicle body, includes: a first cross member coupled to each front portion of first and second rear side members in a vehicle width direction; and a second cross member coupled to the first and second rear side members at a rear of the corresponding first cross member in the vehicle width direction, wherein a space in which the at least one component is mounted is formed between the first cross member and the second cross member.

A fluid tank comprising can include an outer housing comprising a housing volume, a first fluid bladder positioned within the housing volume, and a second fluid bladder positioned within the housing volume. The first fluid bladder can comprise a first conduit and the second fluid bladder can comprise a second conduit. The first fluid bladder can be configured to release fluid through the first conduit in response to introduction of fluid into the second fluid bladder via the second conduit. The housing volume can be maintained at a substantially constant pressure when fluid is released from the first fluid bladder through the first conduit and fluid is introduced into the second fluid bladder through the second conduit.

A fluid tank comprising can include an outer housing comprising a housing volume, a first fluid bladder positioned within the housing volume, and a second fluid bladder positioned within the housing volume. The first fluid bladder can comprise a first conduit and the second fluid bladder can comprise a second conduit. The first fluid bladder can be configured to release fluid through the first conduit in response to introduction of fluid into the second fluid bladder via the second conduit. The housing volume can be maintained at a substantially constant pressure when fluid is released from the first fluid bladder through the first conduit and fluid is introduced into the second fluid bladder through the second conduit.

The invention relates to a leak detection system on board of a vehicle comprising a fuel tank (301, 401), a filler pipe (302, 402), a venting line (303, 403) for recirculating fuel vapors from the tank to the filler pipe, said system having a combination pressure and temperature sensor mounted in the vapor dome of the fuel tank, and a pressure sensor located in the recirculation line above the highest possible liquid level that could be present in the recirculation line and to methods to detect said leak.

A self-heating and self-sealing bladder comprising of a fuel and water resistant layer overlaid on a mold; an adhesive tack layer overlaid on the fuel and water resistant layer; a first fabric reinforcement layer overlaid on the adhesive tack layer; a microballoon powder, water containing microspheres, and reactive salt powders disposed in a plurality of pouches such that upon activation the microballoon powder and the reactive salt powders come in contact with the water and react to create a formulation that results in heat and expansion, thus a self-sealing capability; and, a second fabric reinforcement layer overlaid the plurality of pouches.

A filling level indicator for determining a filling level in a tank, having a resistor network, a contact element, and a magnetic element. The contact element is spaced apart from the resistor network and the magnetic element is movable relative to the resistor network and the contact element. The contact element has a contact region deflectable by the magnetic element. An electrically conductive connection between the contact region and the resistor network is produced by deflection of the contact region. The contact region is formed by a planar tape-shaped element and the contact region has contact portions that are spaced apart from one another in the circumferential direction. The contact portions are separated from one another by separation regions.

A lever float valve comprising a float stem with a central vertical axis; a float body coupled to the float stem and rotatable relative to the central vertical axis of the float stem; a valve segment positioned within the float body and configured to pivot around a first axis perpendicular to the vertical axis; and a lever comprising a float arm and a float coupled to the valve segment and configured to pivot around a second axis perpendicular to the vertical axis.

A lever float valve comprising a float stem with a central vertical axis; a float body coupled to the float stem and rotatable relative to the central vertical axis of the float stem; a valve segment positioned within the float body and configured to pivot around a first axis perpendicular to the vertical axis; and a lever comprising a float arm and a float coupled to the valve segment and configured to pivot around a second axis perpendicular to the vertical axis.

Methods and systems are provided for a fuel system. In one example, a method includes flowing fuel tank vapors to a catalyst during a fuel tank depressurization in response to a refueling request. The method further includes executing an engine vapor flush following a refueling event being completed.