Abstract: The disclosure concerns a seal, in particular a rod seal for sealing an axially movable rod in a guide cylinder, in particular a piston seal for a pneumatically, electrically or hydraulically driven coating agent pump for pumping coating agent, having an annular sealing element for sealingly resting on a circumferential surface of an axially movable rod, and having at least one elastic annular pretensioning element, the annular pretensioning element surrounding the annular sealing element radially on the outside and pretensioning it radially to the inside. The disclosure provides an annular seal base body which externally surrounds and holds the sealing element and the pretensioning element. In addition, the disclosure also comprises an inverted variant in which the seal is arranged in an annular groove in a lateral surface of a piston and lies sealingly against the cylinder running surface.

Abstract: The disclosure concerns a seal, in particular a rod seal for sealing an axially movable rod in a guide cylinder, in particular a piston seal for a pneumatically, electrically or hydraulically driven coating agent pump for pumping coating agent, having an annular sealing element for sealingly resting on a circumferential surface of an axially movable rod, and having at least one elastic annular pretensioning element, the annular pretensioning element surrounding the annular sealing element radially on the outside and pretensioning it radially to the inside. The disclosure provides an annular seal base body which externally surrounds and holds the sealing element and the pretensioning element. In addition, the disclosure also comprises an inverted variant in which the seal is arranged in an annular groove in a lateral surface of a piston and lies sealingly against the cylinder running surface.

Abstract: An application system component is provided in the form of a changeable application member such as a nozzle or a bell cup. The application system component includes a transponder for storing component data, from which the component data is readable, and a wear detection device for monitoring of the application system component. The wear detection device includes a wear mark and an optical detector.

Abstract: An interchangeable nozzle is provided), in particular a quick-change nozzle for applying an application agent onto a component and for fastening to a nozzle change system. The nozzle includes a nozzle body having an alignment feature for the angularly correct, mechanical alignment of the nozzle on the change system. The present disclosure also relates to an associated change system and to an associated application system.

Abstract: An application system component is provided in the form of a changeable application member such as a nozzle or a bell cup. The application system component includes a transponder for storing component data, from which the component data is readable, and a wear detection device for monitoring of the application system component. The wear detection device includes a wear mark and an optical detector.

Abstract: A nozzle head for emitting a spray jet of an application agent is configured such that a volumetric flow of the application agent can be applied by the spray jet, and such that the spray jet will be substantially flat and have a jet width that is a dependency of the volumetric flow of the application agent. The nozzle head comprises two outer plates and a middle plate that is disposed between the two outer plates and that includes a front edge on a spraying side of the nozzle head. The front edge of the middle plate includes a predetermined contour. The middle plate includes first and second outer tips on respective first and second sides of the middle plate, the outer tips protruding in a spraying direction. Further, the middle plate includes a recess in a middle portion of the middle plate.

Abstract: The invention relates to a gear wheel pump with two meshing gear wheels which are rotatably mounted within a pump housing by means of a driven driveshaft and a crankshaft journal and which form a pumping channel system between a pump inlet and a pump outlet. Several gaps are formed between the pump housing, the gear wheels, the driveshaft, and the crankshaft journal. One of the gaps between the driveshaft and one of the gear wheels contains means for the rotationally fixed connection of the driveshaft to the gear wheel. In order to prevent leakages penetrating to the connecting means, according to the invention the gap between the driveshaft and the gear wheel is sealed, with respect to the front faces of the gear wheel, by means of a sealant.

Abstract: A nozzle head for emitting a spray jet of an application agent is configured such that a volumetric flow of the application agent can be applied by the spray jet, and such that the spray jet will be substantially flat and have a jet width that is a dependency of the volumetric flow of the application agent. The nozzle head comprises two outer plates and a middle plate that is disposed between the two outer plates and that includes a front edge on a spraying side of the nozzle head. The front edge of the middle plate includes a predetermined contour. The middle plate includes first and second outer tips on respective first and second sides of the middle plate, the outer tips protruding in a spraying direction. Further, the middle plate includes a recess in a middle portion of the middle plate.

Abstract: A pig traversable through a conduit to deliver a liquid, such as a coating material, having a resilient flexible, generally frustoconical sealing lip which is resiliently biased against an internal surface of the conduit and a resilient biasing member engaging and biased against an under surface of the sealing lip, biasing the sealing lip against an internal surface of the conduit. The disclosed embodiments of the resilient biasing member include annular coil springs and serpentine annular metal springs which may be U-shaped in cross-section, including a first leg received against the under surface of the sealing lip and a second leg received against the pig body portion.

Abstract: The invention relates to a valve, especially a rotary piston valve (1), for controlling the temperature and quantity of the returned exhaust gas in internal combustion engines. Said valve comprises a valve housing (2) and a control element (3) disposed therein which interacts with a valve face (14) configured in the valve housings (2), the control element (3) having a conical surface area (10).

Abstract: A pump, e.g., for delivering fluid, such as a metering pump for metering a coating agent in a coating system, is disclosed. An exemplary pump may include a pump inlet for feeding the fluid, a pump outlet for discharging the fluid, a rotatably supported drive shaft for mechanically driving the pump, and a coupling. The coupling may be structurally integrated in the pump, for mechanically connecting the drive shaft of the pump to an output shaft of a drive motor.

Abstract: The invention relates to a gear wheel pump with two meshing gear wheels which are rotatably mounted within a pump housing by means of a driven driveshaft and a crankshaft journal and which form a pumping channel system between a pump inlet and a pump outlet. Several gaps are formed between the pump housing, the gear wheels, the driveshaft, and the crankshaft journal. One of the gaps between the driveshaft and one of the gear wheels contains means for the rotationally fixed connection of the driveshaft to the gear wheel. In order to prevent leakages penetrating to the connecting means, according to the invention the gap between the driveshaft and the gear wheel is sealed, with respect to the front faces of the gear wheel, by means of a sealant.

Abstract: The invention relates to a valve, especially a rotary piston valve (1), for controlling the temperature and quantity of the returned exhaust gas in internal combustion engines. Said valve comprises a valve housing (2) and a control element (3) disposed therein which interacts with a valve face (140 configured in the valve housings (2), the control element (3) having a conical surface area (10).

Abstract: In the case of a vehicle seat, in particular a shell-type seat, having a backrest (4) over which a safety belt (G) can be guided in order to secure a seat occupant (F, M), the safety belt (G) can be placed in contact with a belt catch hook (10) that is attached to the backrest (4) and that laterally guides and/or holds a safety belt (G) engaged therein and allows a safety belt (G) disengaged therefrom to freely move laterally.

Abstract: The invention relates to an exhaust gas heat exchanger (2), especially for motor vehicles, comprising a main flow path and a secondary flow path (bypass) for the exhaust gas. Said heat exchanger comprises a valve device (3) which is used to control the exhaust gas flow and can be actuated by a servomotor (4) by means of a transmission device (8, 6), the valve device (3) comprising a valve closing member fixed to a valve shaft (a). According to the invention, the valve shaft (a) can be loaded by a torsion spring (5) which can be supported on the valve shaft and on the valve device (3, 3a).

Abstract: A pig traversable through a conduit to deliver a liquid, such as a coating material, having a resilient flexible, generally frustoconical sealing lip which is resiliently biased against an internal surface of the conduit and a resilient biasing member engaging and biased against an under surface of the sealing lip, biasing the sealing lip against an internal surface of the conduit. The disclosed embodiments of the resilient biasing member include annular coil springs and serpentine annular metal springs which may be U-shaped in cross-section, including a first leg received against the under surface of the sealing lip and a second leg received against the pig body portion.

Abstract: The invention concerns a pig scraper for cleaning the inside wall of a coating agent conduit. The pig scraper includes a body insertable in the conduit and at least one sealing lip that seals against the inside wall of the conduit and extends parallel to a longitudinal axis of the body. A space is defined between the sealing lip and the body to form a pocket for enhancing the sealing of the sealing lip with respect to the conduit. The length of the sealing lip substantially prevents the lip from folding over on itself in response to a change in the direction of movement of the pig scraper in the conduit.

Abstract: The two sealing lips of a pig, which is driven by a pushing medium for delivering a coating material for the mass-production coating of workpieces, have a self-sharpening sealing edge contacting the inner wall of the piggable line. Flat outer surface parts of the sealing lip formed ahead of and behind the sealing edge are angled against the inner wall of the line for an unloaded pig, while the inner surface part in the axial direction is pressed flat against the line under loading by the pushing medium. The production of the pig is realized through turning and subsequent shaping of the sealing lips in a transport sleeve in which the pig is kept and brought to its insertion location.

Abstract: The invention concerns a pig scraper for cleaning the inside wall of a coating agent conduit. The pig scraper includes a body insertable in the conduit and at least one sealing lip that seals against the inside wall of the conduit and extends parallel to a longitudinal axis of the body. A space is defined between the sealing lip and the body to form a pocket for enhancing the sealing of the sealing lip with respect to the conduit. The length of the sealing lip substantially prevents the lip from folding over on itself in response to a change in the direction of movement of the pig scraper in the conduit.

Abstract: For the pig delivery of the coating material at high voltage in a system for electrostatic mass-production coating of workpieces in the vicinity of grounded parts of the system, a multi-layer tube is provided, whose innermost layer forms the piggable inner wall, while a second layer consists of a high-voltage-resistant isolation material and is surrounded by a protective outer layer.