Abstract: A breast shield unit of a breast pump for expressing human breastmilk includes a breast shield (1) to be placed onto a mother's breast, a breastmilk collection container (5) for receiving expressed breastmilk, an adapter (2) for connecting the breast shield (1) to the breastmilk collection container (5) and a valve head (4). A breastmilk channel extends from the breast shield (1) into the breastmilk collection container (5) through the adapter (2) and the valve head (4). The valve head (4) includes a valve (40) which closes and opens the breastmilk channel during the pumping action, wherein a fill level sensor (6) for measuring a fill level of the breastmilk collection container (5) is arranged in the valve head (4). The breast shield unit according to the invention facilitates a fill level measurement without a structural change of the breast shield and breastmilk collection container. Moreover, it facilitates data interchange with external information storage and/or information processing units.

Abstract: An injection nozzle that for a first fuel in a first mode and in a second mode ignition fluid for a second fuel is introduced. The injection nozzle includes an injection nozzle body with first and second injection orifices and a displaceable injection nozzle needle in the injection nozzle body. The first injection orifices have smaller injection orifice cross-sections than the second injection orifices and are arranged at a defined distance. In a first displacement direction for closing the orifices the first injection orifices are located in front of the second injection orifices and seen in a second displacement direction of the injection nozzle needle for the opening or unblocking of the orifices, the first injection orifices are located behind the second injection orifices.

Abstract: A household refrigeration appliance having a receiving space for food and a plate-like lighting module for lighting the receiving space. The plate-like lighting module has a support apparatus, on which at least a light source module and a plate-shaped light guide are arranged. The support apparatus has a front frame which is a visible component of the lighting module facing the receiving space, and the front frame has a front strip, on the rear side of which a support web is arranged protruding backward and is formed in one piece with the front strip. The light source module is arranged on the support web.

Abstract: A household appliance includes an ambient light detection unit that has a sensor housing and a brightness sensor that detects the brightness of the light in the environment of the household appliance. The brightness sensor is disposed in the sensor housing. The household appliance has a housing having a front strip and a door fastened to the housing. The ambient light detection unit is disposed on a front strip or on a door closure strip of the door. A method is disclosed for the specific setting of the brightness of an illuminating apparatus for a household refrigeration appliance.

Abstract: An ambient light detection unit for a household appliance includes a sensor housing and a brightness sensor which is disposed in the sensor housing and detects the brightness of the ambient light in the environment. The ambient light detection unit has a lens with which the ambient light that is incident on the sensor housing is focused toward the brightness sensor. A household appliance is also provided.

Abstract: A household refrigeration appliance has a receiving compartment for food and a planar lighting module for lighting the receiving compartment. The lighting module has a first lighting sub-module with a first plate-shaped light guide and a separate, second lighting sub-module directly adjoining the first sub-module and having a second plate-shaped light guide. The first light guide has a first edge and the second light guide has a first edge. The first edges are arranged facing one another and in a direction at right angles to a plane defined by the lighting module, an offset is formed between the first edges, so that in this direction the first edges are arranged at a distance from one another perpendicular to the plane.

Abstract: A household refrigeration appliance has a receiving compartment for food and a planar lighting module for lighting the receiving compartment. The lighting module has a first lighting sub-module with a first plate-shaped light guide and a separate, second lighting sub-module directly adjoining the first sub-module and having a second plate-shaped light guide. The first light guide has a first edge and the second light guide has a first edge. The first edges are arranged facing one another and in a direction at right angles to a plane defined by the lighting module, an offset is formed between the first edges, so that in this direction the first edges are arranged at a distance from one another perpendicular to the plane.

Abstract: A household refrigeration appliance having a receiving space for food and a plate-like lighting module for lighting the receiving space. The plate-like lighting module has a support apparatus, on which at least a light source module and a plate-shaped light guide are arranged. The support apparatus has a front frame which is a visible component of the lighting module facing the receiving space, and the front frame has a front strip, on the rear side of which a support web is arranged protruding backward and is formed in one piece with the front strip. The light source module is arranged on the support web.

Abstract: A method for operating an internal combustion engine having at least one fuel injector that is activated for opening and closing via a solenoid valve of a respective fuel injector. Commencing with the activation of the fuel injector for opening, structure-borne sound waves emitted by the fuel injector over the time are detected by measurement. A structure-borne sound wave signal detected by measurement over the time is evaluated such that dependent on the amount of at least one maximum of the structure-borne sound wave signal and/or dependent on the number of the maximums of the structure-borne sound wave signal and/or in the presence of multiple maximums dependent on the time sequence and/or on the amount of the maximums, an operating state of the respective fuel injector is deduced.

Abstract: A beverage dispenser has an actuation lever which is mounted in a dispenser recess in such a way as to be able to pivot about an axis, at least one lighting device, and at least one optical waveguide, which extends from the lighting device, for illuminating the dispenser recess. A light exit is provided on the actuation lever, and the optical waveguide connects the lighting device to the light exit on the actuation lever.

Abstract: A household refrigeration appliance has a heat-insulated body with an inner container, which delimits a coolable interior provided for storing foodstuffs, a refrigeration device for cooling the coolable interior, a door leaf for closing the coolable interior and interior lighting for the at least partial illumination of the coolable interior. The coolable interior is defined by two side walls and one rear wall of which the surfaces facing the coolable interior are formed by the inner container. The interior lighting has an at least semitransparent cover, a planar light guide with a first surface facing the inner container and a second surface facing the cover and at least one lighting device, which couples its light into the planar light guide so that the planar light guide is able to decouple the light from its second surface.

Abstract: A method for operating an internal combustion engine having at least one fuel injector that is activated for opening and closing via a solenoid valve of a respective fuel injector. Commencing with the activation of the fuel injector for opening, structure-borne sound waves emitted by the fuel injector over the time are detected by measurement. A structure-borne sound wave signal detected by measurement over the time is evaluated such that dependent on the amount of at least one maximum of the structure-borne sound wave signal and/or dependent on the number of the maximums of the structure-borne sound wave signal and/or in the presence of multiple maximums dependent on the time sequence and/or on the amount of the maximums, an operating state of the respective fuel injector is deduced.

Abstract: A beverage dispenser has a housing enclosing a dispenser recess, at least one light inlet window for lighting the dispenser recess, a printed circuit board, on which a number of LEDs are arranged to feed light into the dispenser recess by way of the at least one light inlet window. The printed circuit board is mounted on the housing of the dispenser recess above an LED housing, which seals the light inlet window.

Abstract: A method for operating an internal combustion engine with multiple cylinders. Each cylinder of the internal combustion engine includes at least one fuel injector, and each fuel injector is activated for opening and closing via a solenoid valve of the respective fuel injector. Structure-borne sound waves emitted by the fuel injectors and/or accelerations caused by the fuel injectors are detected by measurement. The structure-borne sound waves detected by measurement and/or the accelerations detected by measurement are evaluated, and based on the evaluation, characteristics of the fuel injectors are automatically determined.

Abstract: A beverage dispenser has an actuation lever which is mounted in a dispenser recess in such a way as to be able to pivot about an axis, at least one lighting device, and at least one optical waveguide, which extends from the lighting device, for illuminating the dispenser recess. A light exit is provided on the actuation lever, and the optical waveguide connects the lighting device to the light exit on the actuation lever.

Abstract: A household refrigeration appliance has a heat-insulated body with an inner container, which delimits a coolable interior provided for storing foodstuffs, a refrigeration device for cooling the coolable interior, a door leaf for closing the coolable interior and interior lighting for the at least partial illumination of the coolable interior. The coolable interior is defined by two side walls and one rear wall of which the surfaces facing the coolable interior are formed by the inner container. The interior lighting has an at least semitransparent cover, a planar light guide with a first surface facing the inner container and a second surface facing the cover and at least one lighting device, which couples its light into the planar light guide so that the planar light guide is able to decouple the light from its second surface.

Abstract: A household refrigeration device includes a heat-insulated body with an inner container which delimits a coolable interior space for storing foodstuffs and has a pocket-shaped recess with a bottom. A refrigeration device cools the coolable interior space. A door panel closes the coolable interior space in a closed state and makes the coolable interior space accessible in an open state. An interior lighting system, which is fastened in the pocket-shaped recess, illuminates the coolable interior space when the door panel is open. The bottom of the pocket-shaped recess includes at least one fastening device, and the interior lighting system has at least one mating fastening device which is fastened on the at least one fastening device. A method for producing a household refrigeration device is also provided.

Abstract: A domestic refrigeration device includes a thermally insulated body with an internal compartment delimiting an interior coolable food storage space, a refrigeration apparatus cooling the interior space, a door leaf closing the interior space in a closed state and making the interior space accessible in an open state, and an interior lighting configuration illuminating the interior space with the door leaf open. The interior space has side walls with a depth, edges facing the door leaf, a ceiling and a rear wall rearwardly closing the interior space. The lighting configuration includes a first partial interior lighting configuration illuminating the interior space only at least approximately starting from a distance or space measured from the edges of the side walls facing the door leaf to the rear wall, and a second independent partial interior lighting configuration illuminating only a front region of the interior space facing the door leaf.

Abstract: A refrigeration appliance includes a door having a door rack or racks on the inside of a door leaf and a surface luminaire or lighting fixture disposed substantially perpendicular to the door leaf. The surface luminaire extends in the vertical direction beyond the door rack or racks and serves to illuminate an interior storage space. The surface luminaire is preferably an OLED.

Abstract: A beverage dispenser has a housing enclosing a dispenser recess, at least one light inlet window for lighting the dispenser recess, a printed circuit board, on which a number of LEDs are arranged to feed light into the dispenser recess by way of the at least one light inlet window. The printed circuit board is mounted on the housing of the dispenser recess above an LED housing, which seals the light inlet window.