Abstract: A device to adjust a contour of a vehicle seat with contour adjustment, may include at least one air cushion connected to a pump via a supply line, a first valve for opening and closing the supply line, and a control and evaluation unit to determine an air volume being supplied to the at least one air cushion via an operating time of the pump and to correlate the air volume being supplied to the at least one air cushion with a contour of the vehicle seat. A related method for adjusting a contour of a vehicle seat with contour adjustment equipped with such a device, may include determining an air volume being supplied to the at least one air cushion via the operating time of the pump, and the air volume being supplied to the at least one air cushion is correlated with a contour of the vehicle seat.

Abstract: The invention relates to a pump comprising a housing (2), comprising at least one pump chamber (15), comprising an inlet valve (30) that has a valve element (30a) which controls an inlet opening (30c), comprising an outlet valve (33) that has a valve element (33a) which controls an outlet opening (33c), comprising a pressure relief valve (43) that has a valve element (43a) which controls a pressure relief opening (43c) and on which a spring element (48) acts in the closing direction (31), and comprising a spring chamber (49) that receives the spring element. A stop element (51) which can be accessed from the housing outer face and which can be adjusted in the closing direction (31) is arranged in the spring chamber (49), the spring element (48) end that faces away from the closing direction resting against the stop element.

Abstract: A valve has a housing that has a first media opening and encloses a pressure space, and a valve element actuated by at least one wire-shaped SMA element arranged in a pressure space that in a first position closes the media opening and in a second position closes the first media opening that opens the valve element. The valve housing is formed by a housing shell open on one side and a circuit board closing it with which the SMA element is electrically connected.

Abstract: The invention relates to a pump comprising a housing (2), comprising at least one pump chamber (15), comprising an inlet valve (30) that has a valve element (30a) which controls an inlet opening (30c), comprising an outlet valve (33) that has a valve element (33a) which controls an outlet opening (33c), comprising a pressure relief valve (43) that has a valve element (43a) which controls a pressure relief opening (43c) and on which a spring element (48) acts in the closing direction (31), and comprising a spring chamber (49) that receives the spring element. A stop element (51) which can be accessed from the housing outer face and which can be adjusted in the closing direction (31) is arranged in the spring chamber (49), the spring element (48) end that faces away from the closing direction resting against the stop element.

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 pneumatic cushion, in particular for a vehicle seat, has an upper and a lower film wall and at least one longitudinal welded seam. The upper and the lower film wall in the collapsed installed state of the pneumatic cushion bear against one another and form a flat structure which is defined to the side by longitudinal side edges. The longitudinal welded seam of the film bladder is provided in a film region between the two longitudinal side edges of the pneumatic cushion.

Abstract: A film bladder, in particular for a vehicle seat, has an upper and a lower film wall and at least one longitudinal welded seam. The upper and the lower film wall in the collapsed installed state of the film bladder bear against one another and form a flat structure which is defined to the side by longitudinal side edges. The longitudinal welded seam of the film bladder is provided in a film region between the two longitudinal side edges of the film bladder.

Abstract: A device for controlling a fluid volume in shape changing elements of vehicle seats has a sliding valve connectable with a fluid pressure source and with shape changing elements for filling the shape changing elements with fluid and discharging fluid from the shape changing elements, the sliding valve having a housing provided with connecting openings for a corresponding one of the shape changing elements and a control slider movable in the housing relative to the connecting openings, the control slider having at least one control opening cooperating with the connecting openings and at least one connecting passage which opens in the control opening and is loadable with fluid from the fluid pressure source, the control slider being formed as an axial slider which is guided on the housing, the axial slider having an axial displaceably sliding head provided with the at least one control opening and the at least one connecting passage and a slider rod rigidly connected with the slider head for axial displacement

Abstract: A fuel-level indicator for a motor vehicle fuel tank includes an insulating base carrier; an electrically conducting slide track mounted on the base carrier and containing at least one metal; and a movable transmitter arm carrying a slide contact and being in sliding engagement with the slide track. The slide track is free from silver.

Abstract: A flap valve for the filling pipe of a motor vehicle fuel tank, comprising a pipe section (3) that projects at a slant into the tank, a valve flap (2) that is positioned so as to rotate therein and has two pivoting arms (33), which project on the side from the pipe section, as well as a floater (1) that is guided axially on the outside peripheral surface of the pipe section. The pivoting arms (33) are hinged with their free ends to this floater. In the fully assembled state, the lower front of the floater (1) has an essentially horizontally extending plane, namely a frontal plane (17).