Abstract: The invention relates to a boom-arm segment fora concrete pump, wherein the boom-arm segment (30) comprises a side part (35, 36)-which extends between a top chord (33) and a bottom chord (34) of the boom-arm segment (30). In the side part (35, 36), a bent portion is formed such that a first portion (42, 43) of the side part (35, 36) has a lateral offset (56) relative to a second portion (44) of the side part (35, 36). A transition portion (45, 46) forms a connection between the first portion (42, 43) and the second portion (44). The boom-arm segment (30) comprises a reinforcement part (40, 50), the material thickness of which spans the lateral offset (56) between the first portion (42, 43) and the second portion (44). The reinforcement part (40, 50) is butt-joined to the transition portion (45, 46). The invention also relates to a method for producing a boom-arm segment (30).

Abstract: The invention relates to a tank device (1) for a gaseous medium, comprising a valve device (2) and a tank (10), wherein the valve device (2) has a valve housing (20) with a longitudinal axis (11). The valve housing (20) is equipped with an inner chamber (7), in which a main valve element (16) is arranged in a movable manner along the longitudinal axis (11), said main valve element (16) interacting with a first valve seat (40) and thus forming a main valve (43). An actuation valve element (18) which can be moved along the longitudinal axis (11) is arranged coaxially to the main valve element (16), said actuation valve element (18) interacting with a second valve seat (41) in order to open and close an inlet opening (160) and thus forming an actuation valve (44). The valve device (2) additionally comprises a magnet coil (14).

Abstract: The invention relates to a tank device (1) for storing a gaseous medium, in particular hydrogen, comprising a valve device (2), and a tank (10) and having a longitudinal axis (11). The valve device (2) has a valve housing (20), which is equipped with a pilot valve element (18) that can be moved along the longitudinal axis (11), said pilot valve element (18) interacting with a first valve seat (27) in order to open and close a first outlet opening (56) and thus forming a pilot valve (44). The valve device (2) can be actuated by means of a solenoid coil (14), wherein a main valve element (19) is arranged in the valve housing (20), said main valve element (19) interacting with a second valve seat (40) in order to open and close a second outlet opening (31) and thus forming a main valve (191). The tank device (1) comprises a screw-in housing element (24), wherein the valve device (2) is integrated into a neck region (6) of the tank (10) in a fixed manner by means of the screw-in housing element (24).

Abstract: The invention relates to a tank device (1) for storing a gaseous medium, in particular hydrogen, comprising a valve device (2) and a tank (10). The valve device (2) comprises a valve housing (20) having a longitudinal axis, in which valve housing (20) an interior (7) is formed. An actuation valve element (18) movable along the longitudinal axis (11) is arranged in the interior (7), which actuation valve element (18) interacts with a valve seat (40) in order to open and close an outlet opening (31) and thus forms an actuation valve (44). The valve device (2) comprises a solenoid (14). Furthermore, the valve seat (40) is formed downstream on the valve housing (20) and at the outlet opening (31), and the cylindrical outlet opening (31) leads into a cylindrical passage channel (80), the diameter D of the passage channel (80) being greater than the diameter d of the outlet opening (31).

Abstract: The invention relates to a tank device (1) for a gaseous medium, comprising a valve device (2) and a tank (10), wherein the valve device (2) has a valve housing (20) with a longitudinal axis (11). The valve housing (20) is equipped with an inner chamber (7), in which a main valve element (16) is arranged in a movable manner along the longitudinal axis (11), said main valve element (16) interacting with a first valve seat (40) and thus forming a main valve (43). An actuation valve element (18) which can be moved along the longitudinal axis (11) is arranged coaxially to the main valve element (16), said actuation valve element (18) interacting with a second valve seat (41) in order to open and close an inlet opening (160) and thus forming an actuation valve (44). The valve device (2) additionally comprises a magnet coil (14).

Abstract: The invention relates to an injection nozzle (1) for fuels, comprising a nozzle body (2), in which a pressure chamber (4) that can be filled with fuel under high pressure is formed, in which pressure chamber a piston-shaped nozzle needle (3) is arranged in such a way that the nozzle needle can be moved longitudinally. A sealing surface (6) is formed at one end of the nozzle needle (3) and an end face (9) is formed at the opposite end, wherein the sealing surface (6) interacts with a nozzle seat (5) in order to open and close at least one injection opening (8). A control chamber (10) that can be filled with fuel under changing pressure is bounded by the end face (9) of the nozzle needle (3) such that a force can be applied to the end face (9) in the direction of the nozzle seat (5) by means of the hydraulic pressure. The nozzle needle (3) has an elastic longitudinal segment (25), which has a longitudinal stiffness of less than 40,000 N/mm.

Abstract: The invention relates to an injection nozzle (1) for fuels, comprising a nozzle body (2), in which a pressure chamber (4) that can be filled with fuel under high pressure is formed, in which pressure chamber a piston-shaped nozzle needle (3) is arranged in such a way that the nozzle needle can be moved longitudinally. A sealing surface (6) is formed at one end of the nozzle needle (3) and an end face (9) is formed at the opposite end, wherein the sealing surface (6) interacts with a nozzle seat (5) in order to open and close at least one injection opening (8). A control chamber (10) that can be filled with fuel under changing pressure is bounded by the end face (9) of the nozzle needle (3) such that a force can be applied to the end face (9) in the direction of the nozzle seat (5) by means of the hydraulic pressure. The nozzle needle (3) has an elastic longitudinal segment (25), which has a longitudinal stiffness of less than 40,000 N/mm.

Abstract: A method for irradiation planning for a quasi-cyclically moving target volume includes defining a first movement phase within a movement period of the target volume and carrying out a first irradiation planning using a first position of the target volume during the first movement phase. The method also includes defining a second movement phase within the movement period of the target volume, and carrying out a second irradiation planning for the second movement phase using a second position of the target volume during the second movement phase. An apportionment of a total dose to be applied is provided to a first partial dose that is allocated to the first movement phase and to a second partial dose that is allocated to the second movement phase.

Abstract: In order to increase the accuracy of the calibration of an imaging system of a radiation treatment system operable to generate a treatment beam, an imaging device generates first data representing a reticle disposed in a beam path of the treatment beam. A first transformation between at least two dimensions of a coordinate system of a radiotherapy device of the radiation treatment system and a two-dimensional (2D) image coordinate system for the imaging device is determined based on the first data. The imaging device generates second data representing a phantom including a plurality of markers. A position of the phantom in the coordinate system of the radiotherapy device is determined based on the second data and the first transformation. A second transformation between three dimensions of the coordinate system of the radiotherapy device and the 2D image coordinate system for the imaging device is determined based on the second data and the determined position of the phantom.

Abstract: A method for determining a movement phase of a periodically moving object in a plurality of sequentially produced images in a series of images of the periodically moving object. The method includes registering different images in the series of images. The method also includes determining a deformation that has occurred between the registered images. The method further includes—determining the phase of the movement of the moving object for at least one of the images in the series of images based upon the determined deformation.

Abstract: A method for irradiation planning for a quasi-cyclically moving target volume includes defining a first movement phase within a movement period of the target volume and carrying out a first irradiation planning using a first position of the target volume during the first movement phase. The method also includes defining a second movement phase within the movement period of the target volume, and carrying out a second irradiation planning for the second movement phase using a second position of the target volume during the second movement phase. An apportionment of a total dose to be applied is provided to a first partial dose that is allocated to the first movement phase and to a second partial dose that is allocated to the second movement phase.

Abstract: A large manipulator, especially a truck-mounted concrete pump, has a boom base that can be arranged on a frame so as to be pivoted about a substantially vertical axis of rotation. The large manipulator has a pendular element, that hangs down as an articulated boom and a control device for controlling the drive units of the axes of articulation and rotation of the articulated boom. The remote control has at least one inclination sensor which is housed in a housing that is detachably fastened on the pendular element. Two inclination sensors are housed in the housing and are bent at an angle of 90° with respect to each other and with respect to an axis that is parallel to the pendular element axis. The housing has a mark indicating the orientation of at least one of the inclination sensors inside the housing.

Abstract: The invention relates to a method for setting up a mobile machine (1), particularly an automatic concrete pump, a mobile crane or a movable elevating work platform. With such a method, the subsurface (28) of a site is analyzed for the properties and/or load-bearing capacity thereof before the machine (10) is positioned there and/or oriented and supported by means of flarable supporting legs (20, 24) in set-up positions (VR, VL, HR, HL) suitable according to the determined subsurface properties and load-bearing capacity. In order to determine an optimized set-up position for the supporting legs (20, 24), geodata (38) of a geographic environment that includes the site is read via a computer in a data memory (44) using a layer of subsurface data (40) that defines the subsurface properties and load-bearing capacity.

Abstract: A method for determining a movement phase of a periodically moving object in a plurality of sequentially produced images in a series of images of the periodically moving object. The method includes registering different images in the series of images. The method also includes determining a deformation that has occurred between the registered images. The method further includes—determining the phase of the movement of the moving object for at least one of the images in the series of images based upon the determined deformation.

Abstract: The invention relates to a method for setting up a mobile machine (1), particularly an automatic concrete pump, a mobile crane or a movable elevating work platform. With such a method, the subsurface (28) of a site is analyzed for the properties and/or load-bearing capacity thereof before the machine (10) is positioned there and/or oriented and supported by means of flarable supporting legs (20, 24) in set-up positions (VR, VL, HR, HL) suitable according to the determined subsurface properties and load-bearing capacity. In order to determine an optimized set-up position for the supporting legs (20, 24), geodata (38) of a geographic environment that includes the site is read via a computer in a data memory (44) using a layer of subsurface data (40) that defines the subsurface properties and load-bearing capacity.

Abstract: A large manipulator, especially a truck-mounted concrete pump, has a boom base that can be arranged on a frame so as to be pivoted about a substantially vertical axis of rotation. The large manipulator has a pendular element, that hangs down as an articulated boom and a control device for controlling the drive units of the axes of articulation and rotation of the articulated boom. The remote control has at least one inclination sensor which is housed in a housing that is detachably fastened on the pendular element. Two inclination sensors are housed in the housing and are bent at an angle of 90° with respect to each other and with respect to an axis that is parallel to the pendular element axis. The housing has a mark indicating the orientation of at least one of the inclination sensors inside the housing.

Abstract: In fuel injection system having at least one fuel injector and a control unit for triggering the injector, each injector has a piezoelectric actuator, a nozzle element having at least one nozzle opening and at least one movable nozzle needle for selectively closing and opening the at least one nozzle opening, a hydraulic coupling element, which is connected between the piezoelectric actuator and the nozzle needle, and at least one stroke stop, against which the nozzle needle rests in its completely open and/or completely closed position. To be better able to ascertain when the stroke stop is reached in such injectors, the needle stroke stop is ascertained during an energization pause of the piezoelectric actuator by analyzing a voltage signal applied to the piezoelectric actuator. Oscillations of the voltage signal during the energization pause are preferably analyzed.

Abstract: In a method for ascertaining the control voltage of a piezoelectric element, the voltage drop at the piezoelectric element following a charge process is measured and the control voltage of the piezoelectric element is inferred from this voltage drop.

Abstract: A multiple coupling means for the production of a releasable connection between fluid lines for a fluid pressure medium and associated with a fluid pressure source, said lines being on the source side and fluid lines associated with at least one fluid load and placed on the load side, said coupling means comprises a first coupling part (12) having several first fluid ports (13) and a second coupling part (14) possessing several second fluid ports (15) for the fluid lines on the load side, the two coupling parts (12 and 14) being able to be shifted in a coupling operation into a working position (22) by being moved together in the direction of an installation axis (21), in which working position (22) mutually opposite joint faces (17 and 19) of the two coupling parts (12 and 14) engage each other and in which the two coupling parts (12 and 14) are secured by means of holding means to avoid accidental uncoupling, an actuating means (23) able to be operated manually is provided, by means of which the coupling pa

Abstract: An injection nozzle for an internal combustion engine, in particular in a motor vehicle, the nozzle including a nozzle body having at least one injection port, a nozzle needle supported to execute a stroke inside the nozzle body to control an injection of fuel through the at least one injection port, a booster piston that is drive-coupled to an actuator and having a booster surface, the nozzle needle or a needle unit including the nozzle needle having a control surface that is hydraulically coupled to the booster surface. A bypass piston is supported to execute a stroke inside the booster piston, the bypass piston having a bypass surface that is hydraulically coupled to the booster surface, the bypass piston resting against a stop that is stationary in relation to the nozzle body, in an initial state in which the nozzle needle closes the at least one injection port, and the bypass piston having a reservoir surface that delimits a reservoir provided inside the booster piston.