Abstract: An emergency degassing apparatus is provided, comprising a base body, an emergency degassing valve having an emergency degassing opening and a pressure cap for closing the emergency degassing opening, and a pressure compensation element (DAE) having a first and a second pressure compensation valve.

Abstract: A method for connecting components using friction stir welding and a device for carrying out the stir friction welding method. A friction stir welding tool having a pin and a shoulder rotates about an axis of rotation and is moved along an advancement direction to connect the components. To obtain a high-quality weld with a simultaneously high welding speed, a friction stir welding tool having a shoulder movable relative to the pin is used and a rotational speed of the pin about the axis of rotation corresponds to at least 1.15 times, preferably at least 1.5 times, in particular 2 to 12 times, the rotational speed of the shoulder about the axis of rotation. The advancement speed is at least 1.0 m/min, preferably 2.0 m/min to 15 m/min.

Abstract: A friction stir welding tool for a machine tool having a frame and a spindle rotatable relative to the frame. The friction stir welding tool includes a pin, a shoulder, and a drive shaft connectable to the spindle to set the pin and shoulder in rotational motion about a rotation axis, wherein the shoulder is rotatable relative to the pin about the rotation axis. To obtain different speeds of the pin and shoulder in a simple and robust manner, a planetary transmission having a ring gear, a planet carrier, and a sun gear is connected to the drive shaft, pin, and shoulder. The pin or the shoulder is connected to the planet carrier so that the pin and shoulder are set in rotation about the rotation axis at different rotational speeds, but in the same rotation direction, by driving the drive shaft by the spindle.

Abstract: A fastening apparatus includes a head element for abutting a first edge region of a component opening and an anchor foot element for rear engagement with a second edge region lying opposite the first edge region. The anchor foot element has a base section extending from the head element in axial direction and four locking arms arranged in pairs and connected to the base section. Each pair of locking arms is configured in order to be pivotable relative to an axial central plane of the fastening apparatus, and each pair of locking arms has locking/centering stages arranged offset from one another in axial direction. A locking/centering stage comprises a centering surface for centering the fastening apparatus relative to a component opening and a locking surface for rear engagement with a component opening. A locking surface and a centering surface of a locking/centering stage are arranged approximately orthogonally to one another.

Abstract: A friction stir welding tool for a machine tool having a frame and a spindle rotatable relative to the frame. The friction stir welding tool includes a pin, a shoulder, and a drive shaft connectable to the spindle to set the pin and the shoulder in rotational motion about a rotation axis, wherein the shoulder is rotatable relative to the pin about the rotation axis. To obtain different speeds of the pin and shoulder in a simple and robust manner, a planetary transmission having a ring gear, a planet carrier, and a sun gear is connected to the drive shaft, pin, and shoulder. The pin or the shoulder is connected to the planet carrier so that the pin and shoulder are set in rotation about the rotation axis at different rotational speeds, but in the same rotation direction, by driving the drive shaft by the spindle.

Abstract: An emergency degassing apparatus is provided, comprising a base body, an emergency degassing valve having an emergency degassing opening and a pressure cap for closing the emergency degassing opening, and a pressure compensation element (DAE) having a first and a second pressure compensation valve.

Abstract: A fastening apparatus is provided for fastening a component to a bolt of a carrier component. The fastening apparatus includes a housing device having a receiving space for receiving a bolt in an axial direction and a fastening clip arranged in the receiving space of the housing device, wherein the fastening clip includes at least two, preferably spring-like latching arms, at whose free ends preferably linear latching edges are formed so as to hold a bolt, wherein the latching edges of the latching arms are inclined relative to the axial direction.

Abstract: A charge adapter for charging a vehicle battery includes a support and a charging coil which is secured to the support and is configured to generate an alternating charging current in response to a magnetic charging field. The charge adapter additionally includes a rectifier which is secured to the support and is configured to generate a rectified charging current based on the alternating charging current. The charge adapter additionally includes a plus contact which is secured to the support and a minus contact which is secured to the support, and which are configured to be plugged onto a plus pole and a minus pole of a vehicle battery, respectively. The charge adapter further includes lines which are configured to conduct the rectified charging current to the plus contact and the minus contact.

Abstract: A friction stir welding tool, which includes a pin and a shoulder rigidly connected to the pin, for welding components composed of a parent material having a melting point of more than 900° C., in particular steel. To achieve a particularly long service life of the tool even with thick-walled components, it is provided that the shoulder is at least partially composed of a first material and the pin is at least partially composed of a second material. Furthermore, the shoulder is at least partially composed of a first: material and the pin is at least partially composed of a second material. In addition, a method for joining components of one or more parent materials having a melting temperature of more than 900° C. is provided.

Abstract: A fastening apparatus includes a head element for abutting a first edge region of a component opening and an anchor foot element for rear engagement with a second edge region lying opposite the first edge region. The anchor foot element has a base section extending from the head element in axial direction and four locking arms arranged in pairs and connected to the base section. Each pair of locking arms is configured in order to be pivotable relative to an axial central plane of the fastening apparatus, and each pair of locking arms has locking/centering stages arranged offset from one another in axial direction. A locking/centering stage comprises a centering surface for centering the fastening apparatus relative to a component opening and a locking surface for rear engagement with a component opening. A locking surface and a centering surface of a locking/centering stage are arranged approximately orthogonally to one another.

Abstract: The invention relates to a column comprising a jacket that bounds at least a first jacket space (M) and a second jacket space arranged thereabove along the longitudinal axis (L). The e first jacket space is separated from the second jacket space by a gas-permeable first chimney tray. A gaseous phase flows upward into the first jacket space, through the first chimney tray into the second jacket space, and then flows upward into the second jacket space. In the first jacket space the gaseous phase (M), in counter-current flow, contacts a first liquid washing agent, and in the second jacket space the gaseous phase, in counter-current flow, contacts a second liquid washing agent. The first chimney tray has a separator for separating the second washing agent, which separates the second washing agent (W?) and directs it into the second jacket space. The invention further relates to an apparatus comprising the column and a method for separating CO2 from a gaseous phase.

Abstract: In the liquefaction of a hydrocarbon by indirect heat exchange with the refrigerant mixture of a refrigerant mixture cycle, the refrigerant mixture being compressed in multiple stages, the compressed refrigerant mixture (23) is at least partially condensed (E4) downstream of the penultimate compressor stage and is fractionated (D4) into a higher-boiling liquid fraction (26) and a lower-boiling gas fraction (24). The lower-boiling gas fraction (24) is compressed to the final pressure, partially condensed (E5) and fractionated (D5) into a lower-boiling gas fraction (10) and a higher-boiling liquid fraction (27). The higher-boiling liquid fraction (27) is added to the partially condensed refrigerant mixture stream (23), and the gas fraction (10) forms the lower-boiling refrigerant mixture fraction and the liquid fraction (26) forms the higher boiling refrigerant mixture fraction of the refrigerant mixture cycle.

Abstract: The invention relates to a method for liquefying a stream rich in hydrocarbons, especially a stream of natural gas, by the indirect exchange of heat with the refrigerants in a closed-circuit cascade of mixed refrigerants. According to the invention, said closed-circuit cascade of mixed refrigerants consists of at least 3 circuits of mixed refrigerants, with each circuit comprising different refrigerants. The first of the three mixed refrigerant circuits is used for pre-cooling (E1), the second for liquefying E2), and the third for super-cooling (E3) the hydrocarbon-rich stream (1) to be liquefied. The method provided for in the invention reduces specific energy consumption and investment costs since the three circuits of mixed refrigerants are or can be optimally adjusted to the enthalpy temperature curves of the hydrocarbon-rich stream to be liquefied and the refrigerant mixtures.

Abstract: A reticle for an electron beam system for direct writing applications has a base layer that contains a reticle pattern; a set of reinforcing struts connected to the base layer separating the base layer into a set of non-contiguous subfields; in which the pattern is carried by a set of apertures in said base layer; and in which the base thickness is set such that the probability that an electron traversing said base thickness will suffer a collision that removes it from the beam is greater than 90% while the probability that the electron will be absorbed is low; and in which, optionally, selected subfields of the reticle are compensated for errors in the remainder of the system.