Abstract: A vehicle heater includes a heater housing (12), through which heating air to be heated can flow, with a heating air inlet area and with a heating air outlet area. A burner unit is arranged in the heater housing. A combustion air blower is arranged in the heater housing for feeding combustion air to the burner unit. A heat exchanger unit is arranged in the heater housing (12). Heating air flowing through the heater housing (12) can flow around the heat exchanger unit. A combustion air intake muffler (76), which is essentially arranged in the heater housing (12), is associated with the combustion air blower (46).

Abstract: A closing device configured to close an outer shell opening of a surface ship, including several substantially vertically mounted shutter lamellas and a drive device by means of which the shutter lamellas can be actuated such that they move between a closed position and an open position.

Abstract: The invention relates to a portion capsule for producing a beverage, having a capsule body with a capsule base and a filling side. A cavity for receiving a pulverulent or liquid beverage substrate is formed between the capsule base and the filling side, and a filter element is arranged between the beverage substrate and the capsule base. The filter element comprises an open-pore felt and/or nonwoven fabric, and the felt and/or nonwoven fabric has a first average pore size in a first region facing the beverage substrate and a second average pore size in a second region facing the capsule base, said first pore size being smaller than the second pore size.

Abstract: A device for producing components using an injection molding method includes at least one cavity (1a) for forming a respective product, at least one injection nozzle (3a) through which material is injected into the cavity (1a), a mold release (4), a distribution channel (10), a media supply (11), an exhaust air channel or return channel (12), at least one shut-off needle (6a). The shut-off needle is connected to a piston in a force-fitting or form-fitting manner and is inserted into the injection nozzle (3a). At least one valve (7a) for opening the needle (6a) and at least one valve (8a) for closing the needle (6a) are provided, such that the valve (7a) and the valve (8a) are arranged directly adjacent to the shut-off needle (6a). A control unit for the valve (7a) and the valve (8a) is also provided.

Abstract: The disclosure relates to a wear measuring system for friction elements, in particular for brushes and the like, as well as to a method for measuring the wear of friction elements, comprising at least one consumable friction element, a holding device for movably positioning the friction element relative to a friction surface, and a measuring device for determining a wear status of the friction element relative to a wear length of the friction element, wherein the measuring device has a potentiometer, wherein the potentiometer is mechanically coupled with the friction element in such a way that a movement by the friction element relative to the friction surface induces a movement by the potentiometer.

Abstract: The invention describes an igniter support (22) for an igniter unit (20) of a gas generator (10), comprising a first holder element (30) made from a first material and a second holder element (32) made from a second material different from the first material. The two holder elements (30, 32) can be positively coupled to each other, especially can be at least partially positively nested. Further, a subassembly (16), a gas generator (10) as well as a method for manufacturing a gas generator (10) are described.

Abstract: The invention describes an igniter support (22) for an igniter unit (20) of a gas generator (10), comprising a first holder element (30) made from a first material and a second holder element (32) made from a second material different from the first material. Both holder elements (30, 32) can be positively coupled to each other. Further, a subassembly (16), a gas generator (10) and a method for manufacturing a gas generator (10) are described.

Abstract: A shift signal transmitter for a manual transmission of a vehicle, in particular of a motorcycle, includes a shift rod for force-transmitting coupling to a foot lever, optionally with the interposition of an extension rod. The shift rod is guided along its longitudinal axis in an axially displaceable manner between two axial stops in an, in particular sleeve-shaped, housing. A connecting piece, which serves for coupling to a shift lever, is rigidly connected to the housing opposite to an internal axial end of the shift rod. A distance sensor for contact-free distance measurement is disposed within the housing opposite to the internal axial end of the shift rod and a sensor area of the distance sensor is oriented radially relative to the longitudinal axis. A shift apparatus for a manual transmission of a vehicle is also provided.

Abstract: Systems and methods are provided for acoustic echo canceling. In one embodiment, a system for canceling acoustic echoes comprises one or more microphones configured to pick up sound generated by a sound source and transferred from the sound source to the one or more microphones via one or more unknown transfer paths having one or more unknown transfer functions, and to provide one or more electrical microphone signals therefrom, one or more adaptive filters for approximating the one or more unknown transfer functions with one or more estimated transfer functions and filtering one or more electrical signals representative of the sound generated by the sound source with the one or more estimated transfer functions to provide one or more estimated signals therefrom, and a microphone calibration block configured to individually attenuate or amplify the one or more electrical microphone signals dependent on the one or more estimated transfer functions.

Abstract: An antenna device (1) for emitting electromagnetic waves has a waveguide (2), which in turn has two plates (3) made of an electrically conductive material and arranged parallel to one another, between which a dielectric material is arranged. The antenna device (1) has a feed-in device (4), with which electromagnetic waves can be coupled into the waveguide (2), which then propagate along the waveguide (2) and are emitted at an edge (5) of the waveguide (2) at a distance from the feed-in device (4). According to the invention, using a control device of the antenna device (1), the dielectric material can be influenced in such a way that a first region (9) having a first permittivity and at least one second region (10) having a second permittivity are formed, such that the electromagnetic waves coupled into the waveguide (2) propagate preferably through the first region (9) and are emitted in this preferred propagation direction (11).

Abstract: A corrector has a strength of a central hexapole field (?HP2) which is selected such that the threefold axial astigmatism (A2) vanishes and the strengths of two equal outer hexapole fields (?HP1,3) are selected such that the overall corrector (5) does not have a sixfold axial astigmatism (A5). The length (L) of the central multipole element (2) in relation to the lengths (L?) of the multipole elements (1 and 3) is chosen such that the axial three-lobed aberration of sixth order (D6) vanishes. A separation between the outer multipole elements (1 and 3) and round lenses (7?, 8?) further spaced apart from a symmetry plane (6) of the corrector corresponds to the focal length (f?) of those round lenses (7?, 8?) plus an additional separation (?z) which is chosen such that the axial three-lobed aberration of fourth order (D4) vanishes for the given lengths L and L?.

Abstract: The invention relates to a propellant cage (10) for an inflator, especially for a tubular inflator of an airbag module, comprising a substantially tubular base (11) which forms, on the one hand, a gas inlet opening (12a) and, on the other hand, a gas outlet opening (12b) along its longitudinal axis (L), wherein at least one lateral gas flow opening (13) is configured in a circumferential wall (12) of the base (11), wherein the base (11) includes a radially outwardly extending collar (11c) having at least one frontal gas flow opening (14) in the area of the gas flow opening (12c).

Abstract: Techniques are provided to more accurately determine reflected power, reflection coefficient, and/or voltage standing wave to permit prompt protection of components such as power amplifiers and notify communication system operators. This is accomplished by more accurately determining an amplitude and phase of an output reflected signal at an output port of a bidirectional coupler as a function of the following: an amplitude and a phase of a coupled forward signal coupled into a forward coupled port of the bidirectional coupler; an amplitude and a phase of a coupled reverse signal coupled into a reverse coupled port of the bidirectional coupler; an electrical transmission parameter from an input port of the bidirectional coupler to the forward coupled port; an electrical transmission parameter from the input port to the reverse coupled port; and an electrical transmission parameter from an output port of the bidirectional coupler to the reverse coupled port.

Abstract: A combined forward navigation and anti-collision light for an aircraft includes a forward navigation light source; a first lens, arranged over the forward navigation light source, with the forward navigation light source and the first lens in operation generating a forward navigation light output; an anti-collision light source; a second lens, arranged over the anti-collision light source, with the anti-collision light source and the second lens in operation generating an anti-collision light output; and a mounting structure, to which the forward navigation light source, the first lens, the anti-collision light source, and the second lens are mounted, wherein the mounting structure provides a common mounting plane, with the forward navigation light source and the anti-collision light source being arranged on the common mounting plane.

Abstract: The invention relates to EPI lighting which allows transmitted light-bright field- or transmitted light-dark field-imaging or phase contrast imaging of a microscopic sample. For this purpose, a flat reflector is used which is located opposite the observer side and which brings about a deflection of the illumination beam of light. The flat reflector has a plane normal and an effective perpendicular which differs from the plane normal, or it is in the form of a retroreflector.

Abstract: In a method for thickening a plastically deformable hollow body wall of a hollow body, with effective radial support of the unthickened hollow body wall on an outer supporting face of an outer mold and with effective radial support of the hollow body wall on an inner supporting face of an inner supporting body, the hollow body is acted on by a compressive force by two application members at application points by moving the application members towards one another in the axial direction with a compressing movement. The application points on the hollow body are distanced from one another in the axial direction. An expansion space of the outer mold is arranged between the application points.

Abstract: An aircraft beacon light is provided for emitting flashes of red light into an environment around an aircraft. The aircraft beacon light includes a support plate having a central portion; a plurality of LEDs, arranged on the support plate around the central portion and facing away from the support plate; an annular light splitting element, having a proximate side arranged over and facing the plurality of LEDs, wherein the proximate side has reflective portions and transmissive portions; and at least one light conditioning element for redirecting light having passed through the transmissive portions of the proximate side of the annular light splitting element.

Abstract: A stackable system container having a base part, with a respective coupling device for connection to a further system container fastened on two opposite side walls of the base part such that it can be moved between a rest position, in which the coupling device can be disengaged from a further system container, and a coupling position, in which the coupling device can be engaged with the further system container. In order to provide for structurally identical system containers to be stacked optionally in a dimensionally stable, interconnected manner or separately, and therefore such that they can easily be singulated, each coupling device is assigned a locking element, which locks the respective coupling device releasably in the rest position.

Abstract: The disclosed subject matter relates to a laser scanner for scanning a ground from a seaborne or airborne vehicle, comprising a scanning unit for emitting a fan-shaped scan pattern made of laser beams fanned out about a scan axis and for receiving the laser beams reflected off the ground and an evaluation unit connected to the scanning unit for evaluating the laser beams that are received. The laser scanner is characterized by a measuring unit that is designed to measure the height of the vehicle above ground, and an actuation device that can be anchored to the vehicle and that is connected to the measuring unit. The actuation device is designed to rotate the fan-shaped scan pattern of the scanning unit with respect to the vehicle about a first actuation axis that is different from the scan axis, depending on the measured height above the ground.

Abstract: A combustion chamber assembly unit for a fuel-operated vehicle heater includes a combustion chamber housing (14) elongated in a direction of a housing longitudinal axis (L), with a combustion chamber (16) radially outwardly bounded by a circumferential wall (18), and with a combustion chamber bottom (20) axially delimiting the combustion chamber (16). A combustion air feed volume (36) is provided that is open to the combustion chamber (16) via a plurality of passage openings (38). A cooling medium feed device (46) is provided for feeding a liquid cooling medium to the combustion air feed volume (36).