Abstract: Methods for drying a substrate. The methods include the following steps: (a) emitting infrared radiation towards a substrate moving through a process space using an emitter unit comprising at least one infrared emitter, (b) generating at least two process gas streams of a process gas directed towards the substrate, (c) drying the substrate by the action of infrared radiation and process gas on the substrate, and (d) extracting moisture-laden process gas from the process space via an extraction duct, forming an exhaust air stream leading away from the substrate. To specify a drying method which is reproducible and effective and leads to an improved result, in particular in terms of homogeneity and speed of drying of the substrate, the at least two process gas streams are guided to the infrared emitter before they act on the substrate, and an exhaust air stream is spatially assigned to each process gas stream.

Abstract: Methods for drying a substrate. The methods include the following steps: (a) emitting infrared radiation towards a substrate moving through a process space using an emitter unit comprising at least one inflated emitter, (b) generating at least two process gas streams of a process gas directed towards the substrate, (c) drying the substrate by the action of infrared radiation and process gas on the substrate, and (d) extracting moisture-laden process gas from the process space via an extraction duct, forming an exhaust air stream leading away from the substrate. To specify a drying method which is reproducible and effective and leads to an improved result, in particular in terms of homogeneity and speed of drying of the substrate, the at least two process gas streams are guided to the infrared emitter before they act on the substrate, and an exhaust air stream is spatially assigned to each process gas stream.

Abstract: Known infrared irradiation devices for drying a material for irradiation that is moved through a process chamber have a radiator unit with at least one infrared radiator for emitting infrared radiation and have a counter-reflector with a reflector wall, wherein the reflector wall has a plurality of inlet openings for admitting cooling gas into the reflector space. Proceeding from this, in order to provide an irradiation device for the drying method, which irradiation device is, in particular for drying solvent-containing and in particular water-based printing ink, distinguished by high-speed drying with a low level of bubble formation and a low level of condensation in the reflector space at the same time, it is proposed that the reflector wall has at least one outlet opening for conducting waste air out of the reflector space.

Abstract: A method for at least partially drying a substrate. The method includes: (a) directing a supply air flow onto the substrate with a direction component in either the transport direction, or the opposite direction and (b) directing an exhaust air flow away from the substrate. The method is reproducible and effective and achieves an improved result with respect to the homogeneity and speed of drying because the exhaust air flow is split into a plurality of sub-flows by supplying each of the sub-flows to an individual intake channel, and because, in the event of a supply air flow in the transport direction of movement of the substrate, the supply air flow is arranged spatially upstream of the exhaust air flow and, in the event of a supply air flow in the opposite direction, the supply air flow is arranged spatially downstream of the exhaust air flow.

Abstract: An infrared heating unit with a furnace includes a housing that accommodates a process space, and a heating facility, whereby the process space is bordered, at least in part, by a furnace lining made of quartz glass. In order to provide, on this basis, an infrared heating unit that enables energy-efficient and uniform (homogeneous) heating of the heating goods by infrared radiation to temperatures of even above 600° C., the heating facility is formed by at least one heating substrate that includes a contact surface in contact with a printed conductor made of a resistor material that is electrically conductive and generates heat when current flows through it, whereby the heating substrate includes doped quartz glass, into which an additional component that absorbs in the infrared spectral range is embedded and forms at least a part of the furnace lining.

Abstract: Methods for drying a substrate. The methods include the following steps: (a) emitting infrared radiation towards a substrate moving through a process space using an emitter unit comprising at least one inflated emitter, (b) generating at least two process gas streams of a process gas directed towards the substrate, (c) drying the substrate by the action of infrared radiation and process gas on the substrate, and (d) extracting moisture-laden process gas from the process space via an extraction duct, forming an exhaust air stream leading away from the substrate. To specify a drying method which is reproducible and effective and leads to an improved result, in particular in terms of homogeneity and speed of drying of the substrate, the at least two process gas streams are guided to the infrared emitter before they act on the substrate, and an exhaust air stream is spatially assigned to each process gas stream.

Abstract: A device for heat treatment is provided. The device includes at least one processing chamber arranged in an elongated housing having a heating device and having a transport system for continuous transport of material to be treated through the processing chamber. The transport system has two parallel endless conveyor belts spaced from each other and a plurality of cylinders made of quartz glass that bridge the distance between the conveyor belts. The cylinders are supported on these belts and the material to be treated is supported on the cylinders for the heat treatment. The cylinders are designed as twin tubes, formed by two tubular compartments separated from each other by an intermediate partition. Each tubular compartment has a longitudinal axis and is connected rotation-free at its end with the conveyor belts.

Abstract: An infrared device is provided, in particular an infrared radiation heating device having an infrared radiator for the heating of devices exposed to weather. The infrared device includes an emitter, wherein the emitter for radiating the infrared radiation is inserted in a housing, and the emitter is protected on the emitting side by a protection unit for the emitted radiation. The infrared radiator, the inner housing wall, and the unit are arranged such that cooling takes place by natural convection. A method is also provided for operating such a device in a wind turbine.

Abstract: The invention relates to a suction jet pump (12), composed of a housing (18) having a connection (24), a propellant line (14), a propulsion jet nozzle (19), a mixing tube (15) which adjoins said propulsion jet nozzle (19), and a suction point (13) arranged upstream of the mixing tube (15). In addition, the suction jet pump (12) has a second suction point (16).

Abstract: In a fuel supply system having a plurality of surge chambers (6, 6?), a suction jet pump (14, 14?) is arranged at a designated height in each surge chamber (6, 6?). The suction jet pumps (14, 14?) in each case feed fuel from one surge chamber (6, 6?) into another surge chamber (6, 6?). By this means, when the fuel tank (1) is virtually empty, the fuel is distributed via the surge chambers (6, 6?). This prevents one of the surge chambers (6, 6?) from draining.