Abstract: A tank inlet cover module is provided, which is installable in a motor vehicle, and a tank inlet cover mounted so it is pivotable thereon. The tank inlet cover module has a groove body having an end stop for limiting a pivot movement of the tank inlet cover. The tank inlet cover itself has a tank inlet cover body and a counter stop element, which interacts with the stop of the tank groove via a counter stop surface, furthermore, means being provided for damping a structure-borne noise propagation between counter stop element and the tank inlet cover body.

Abstract: In order to create a method for producing an electrically insulating sealing assembly for producing a seal between two components of a fuel cell stack, which allows for production of a sealing assembly that offers long-term stability during operation of a fuel cell system and provides good gas tightness and good electrical insulation properties, a method comprising the following steps is proposed: applying an insulating layer starting material onto a substrate in a wet-chemical process; heating the insulating layer starting material to a sinter temperature so as to produce a sintered, electrically insulating, ceramic insulating layer; and directly or indirectly joining the insulating layer to the components to be sealed.

Abstract: In order to create a fuel cell unit, comprising a cathode-electrolyte-anode unit and at least one bipolar plate which is connected to an electrode of the cathode-electrolyte-anode unit in an electrically conductive manner, which has a low contact resistance between the bipolar plate and an electrode of the cathode-electrolyte-anode unit, it is suggested that the fuel cell unit comprise at least one electrically conductive intermediate element which is arranged between the bipolar plate and the electrode and has at least one contact surface facing the electrode.

Abstract: In order to provide a method of producing a sealing arrangement for a fuel cell unit by means of which there can be produced a sealing arrangement having good gas-tight properties and good electrical insulation and which exhibits long-term stability in operation of a fuel cell system, there is proposed a method of producing a sealing arrangement for a fuel cell unit which comprises the following process steps: coating a base material of a component with an oxidizable coating material; letting the coating material diffuse into the base material; oxidizing the coating material for the purposes of producing an oxide layer which has a surface resistivity of at least 1.kQ cm2 at the operating temperature of the fuel cell unit.

Abstract: In order to create a bipolar plate for a fuel cell unit, wherein the bipolar plate comprises a carrier layer and a protective layer, wherein the protective layer comprises an oxide system, the protective layer of which reliably reduces any chromium evaporation even during long-term operation and which also meets the remaining requirements placed on a bipolar plate, it is suggested that the oxide system of the protective layer be an at least ternary oxide system with at least three different types of metal cations.

Abstract: In order to provide a bipolar plate for a fuel cell unit, wherein the bipolar plate comprises a support layer and a protective layer, wherein the protective layer comprises an at least binary oxide system with at least two different types of metal cations, the protective layer of which reliably reduces chromium evaporation even in long-term operation and which also meets the other requirements set for a bipolar plate, it is proposed that one type of metal cation of the oxide system of the protective layer is Fe.

Abstract: In order to provide a bipolar plate for a fuel cell unit, wherein the bipolar plate comprises a support layer of a metallic material and a protective layer, wherein the protective layer comprises an at least binary oxide system with at least two different types of metal cations, the protective layer of which prevents the formation of an oxide layer or changes the properties of the formed oxide layer such that lower mechanical stresses occur in the oxide layer, it is proposed that one type of metal cation of the oxide system of the protective layer is Mn and a further type of metal cation of the oxide system of the protective layer is Cu.

Abstract: Vibration damper with amplitude-dependent damping force includes a cylinder, in which a piston rod, carrying a piston, is guided with freedom of axial movement, where the piston divides the cylinder into a working space on the piston rod side and a working space on the side away from the piston rod. The piston rod carries at least part of a housing, which is mounted in the direction of the piston rod-side working space, and where a separating body is supported inside the housing with freedom to slide. The separating body divides the housing into first and second working chambers, where the first working chamber is connected by at least one radial connecting opening to the piston rod-side working space and the second working chamber is connected by a connecting channel to the working space on the side away from the piston rod. At least a part of the housing is connected to the piston rod by a weld.

Abstract: Vibration damper with amplitude-dependent damping force includes a cylinder, in which a piston rod, carrying a piston, is guided with freedom of axial movement, where the piston divides the cylinder into a working space on the piston rod side and a working space on the side away from the piston rod. The piston rod carries at least part of a housing, which is mounted in the direction of the piston rod-side working space, and where a separating body is supported inside the housing with freedom to slide. The separating body divides the housing into first and second working chambers, where the first working chamber is connected by at least one radial connecting opening to the piston rod-side working space and the second working chamber is connected by a connecting channel to the working space on the side away from the piston rod. At least a part of the housing is connected to the piston rod by a weld.

Abstract: A position reference device for rowing indicates the relative hip and hand positions of the rower over the course of each rowing stroke. The position reference device provides a reference for kinesthetic learning through constant feedback about torso and hand position. Embodiments of the feedback device can be used on either a boat or on a rowing machine. The embodiments for boats in particular provide the immediate on-water feedback that enables a rower to improve technique in a way that conventional feedback devices generally do not. The rowing machine embodiments enable rowers to improve skill while off the water thus enabling the rower to learn better technique even when it is not possible to row on water.

Abstract: The invention relates to a bone substitute material which comprises a soft matrix, living cells and a setting matrix. The invention also relates to processes for producing such a bone substitute material and to the use of non-ceramic hydroxyapatite cement for producing a cell-containing bone substitute material. The latter can be injected minimally invasively into a bone defect in a suitable injection apparatus relevant for the invention.

Abstract: A bone substitute material is prepared which comprises a soft matrix, living cells and a setting matrix comprising non-ceramic hydroxyapatite cement. The bone substitute material can be injected minimally invasively into a bone defect with a suitable injection apparatus. In an embodiment, living cells are mixed with a fibrinogen solution and then with a thrombin solution to form the soft matrix, and the soft matrix is mixed with an aqueous solution of non-ceramic hydroxyapatite cement to obtain the bone substitute material which remains unsolidified until after application to a body.