Abstract: A fuel tank for receiving a fluid in a motor vehicle. The fuel tank includes an outer wall forming an internal space for receiving the fluid. At least one volume element is arranged in the internal space for receiving air, and an opening that is a gas-guiding line between the volume element and the environment of the tank is for changing the volume of the volume element. The at least one volume element is formed at least partially as bellows.

Abstract: A connection ring is provided for removable attachment of a fuel supply unit on a fuel tank. The connection ring has a ring upper side, at least one attachment elevation which protrudes from the ring upper side, and at least one tool engagement region. The tool engagement region is constructed such that a torque from a tool can be transmitted onto the connection ring. At least one portion of the tool engagement region and one portion of the attachment elevation are at an equal distance from the center of the connection ring in the radial direction from the center.

Abstract: A connection ring is provided for removable attachment of a fuel supply unit on a fuel tank. The connection ring has a ring upper side, at least one attachment elevation which protrudes from the ring upper side, and at least one tool engagement region. The tool engagement region is constructed such that a torque from a tool can be transmitted onto the connection ring. At least one portion of the tool engagement region and one portion of the attachment elevation are at an equal distance from the center of the connection ring in the radial direction from the center.

Abstract: A system, method, and display device for displaying an expected range of driving distances for a vehicle having a driving unit and an energy storage unit. A sensor senses an amount of remaining energy in the energy storage unit. An average minimum energy consumption rate and an average maximum energy consumption rate of the driving unit are determined based on at least one of (a) vehicle-specific energy consumption parameters; and (b) driver-specific energy consumption parameters. A minimum expected driving distance is calculated based on the sensed amount of remaining energy and the average maximum energy consumption rate. A maximum expected driving distance is calculated based on the sensed amount of remaining energy and the average minimum energy consumption rate. The expected range of driving distances defined by the minimum expected driving distance and the maximum expected driving distance are displayed on a display unit.

Abstract: A holding flange (5) is detachably connected on its bottom to a coupling part (7) within a fuel chamber (2). A flexible hose (8) leading to a sucking-jet pump (9) and a spring action arm (10) for holding the sucking-jet pump (9) down on the bottom of the fuel chamber (2) are fastened to said coupling part (7). For mounting and removal, the coupling part (7) can be separated from the holding flange (5) together with the structural parts fastened to it.