Abstract: A process for operating a heater that can be operated with hydrocarbon fuel, especially for a vehicle includes providing a substoichiometric air/fuel mixture in a precombustion chamber (18) for a combustion operation and performing a cold flame combustion in the precombustion chamber (18). The precombustion products forming in the precombustion chamber (18) during the cold flame combustion are supplied to a catalyst arrangement (32) and a partial catalytic oxidation is performed for producing a gas containing hydrogen and carbon monoxide. The gas produced during the partial catalytic oxidation is supplied to a main combustion chamber (34) for producing a hydrogen/carbon monoxide/air mixture. The hydrogen/carbon monoxide/air mixture is burned in the main combustion chamber (34).

Abstract: An exhaust system (1) for an internal combustion engine, in particular of a motor vehicle, has at least one exhaust tract (2), which has at least one exhaust pipe (3) which conducts exhaust gas, and has at least one active silencer (5). The active silencer (5) has a silencer housing (6) and at least one electro-acoustic converter (7) which is arranged in the silencer housing (6) and at least one connection pipe (8), which connects the silencer housing (6) fluidically to the exhaust pipe (3). The thermal loading of the converter (7) is reduced with a sound propagation path (9) formed for the propagation of airborne noise in the connection pipe (8) being impermeable to thermal radiation (16) emanating from the exhaust gas in the exhaust pipe (3).

Abstract: The present invention relates to a cast steel alloy for producing cast parts with ferritic structure, wherein the alloy contains iron (Fe), carbon (C), chromium (Cr) and molybdenum (Mo). An increased resistance to intercrystalline corrosion is obtained when the alloy additionally contains titanium (Ti) and niobium (Nb).

Abstract: The present invention relates to an exhaust system for a combustion engine, more preferably of a road vehicle, with at least one exhaust gas-conducting component having a ring-shaped closed inner wall in circumferential direction, whose inner side is exposed to the exhaust gas. The energetic efficiency of the combustion engine can be improved with at least one thermoelectric generator which converts heat into electric energy and which is arranged on an outer side of the inner wall.

Abstract: The invention relates to an exhaust gas treatment device for an exhaust system of a combustion engine, more preferably of a road vehicle, with a housing enveloping at least one interior space, and with at least one through-pipe penetrating the interior space without interruption and which at two fastening points distant from each other is connected to the housing in a fixed manner. For compensating thermally related expansion effects the through-pipe between the fastening points can comprise at least one expansion compensation section, in which a wall of the through-pipe comprises slits penetrating the wall alternating in circumferential direction and strips protruding relative to adjacent wall sections of the through-pipe.

Abstract: The invention relates to a sound absorber for an exhaust system having a Y-shaped feed piece arranged upstream from the sound absorber, combining two exhaust gas-carrying lines to form a single line entering into the sound absorber whereby the Y-shaped feed piece and the sound absorber are assembled from a common bottom shell and a common top shell. The invention also relates to an exhaust system equipped with the sound absorber.

Abstract: A burner for burning a gaseous fuel containing hydrogen with a gaseous oxidizer containing oxygen, having a combustion chamber in which the combustion reaction takes place during operation of the burner and having a wall structure which seals off the combustion chamber on the input end and which has multiple fuel openings through which the fuel is introduced into the combustion chamber during operation of the burner and has multiple oxidizer openings through which the oxidizer is introduced into the combustion chamber during operation of the burner.

Abstract: The present invention relates to an exhaust system for an internal combustion engine, in particular in a motor vehicle, having an exhaust line carrying exhaust gas away from the internal combustion engine and having a fuel injector for injecting fuel into the exhaust line. The fuel injector is mounted on the exhaust line via a mounting device. This mounting device has a receiving body into which the fuel injector is inserted and which is mounted on the exhaust line via a disk-shaped flange. To reduce the risk of overheating of the fuel injector, the flange is mounted on the receiving body via a constriction in cross section and/or on the exhaust line via a thermal insulator.

Abstract: The present invention relates to an air-gap-insulated exhaust manifold (1) of an internal combustion engine, in particular in a motor vehicle, having a collecting line (2) that extends in a longitudinal direction (3), an outlet opening (4) oriented in the longitudinal direction (3), multiple inlet openings (5) oriented across the longitudinal direction (3) and a flange (6) that extends in the longitudinal direction (3) and includes the inlet openings (5), wherein an inside pipe (11) is situated in an outside pipe (10), forming an air-gap insulation, and whereby a gas-carrying outside pipe section (13) is provided in the area of at least one of the inlet openings (5) and leads from the respective inlet opening (5) to an assigned inside pipe inlet (14) which is at a distance from the flange (6). The inside pipe (11) is attached to the outside pipe (10) only in an attachment area (15).

Abstract: The present invention relates to a catalyst for an internal combustion engine, particularly of a motor vehicle, with a housing, which is assembled from at least two housing portions, telescopically inserted one into another in the throughflow direction of the housing, which is assembled from two housing portions telescopically inserted one into the other. A first monolith is mounted in a first housing portion, and a second monolith is mounted in a second housing portion. In an insertion region, an outer end section of the second housing portion and an inner end section of the first housing portion inserted into the outer end section mutually overlap. A transition zone, in which the monoliths, are spaced apart from one another in the throughflow direction, is formed within the insertion region.

Abstract: A multiway valve has a valve housing arrangement (2, 34), in which a valve chamber (8) is formed, at least three main valve connections (3, 4, 5, 6) leading to the valve chamber (8), and a main valve member. The main valve member (1) can be brought into a plurality of valve member positions to interrupt and release the connection between the main valve connections (3, 4, 5, 6) and the valve chamber (8) as desired. At least two of the main valve connections (3, 4, 5, 6) are in connection with the valve chamber (8) in each valve member position of the main valve member (1). At least one auxiliary valve connection (32) leading to the valve chamber (8) and by an auxiliary valve member (28), which is associated with the auxiliary valve connection (32) and is adjustable for interrupting and releasing the connection between the auxiliary valve connection (32) and the valve chamber (8).

Abstract: An evaporative burner includes an evaporative medium for feeding fuel vapor into a combustion chamber, a first heating device, having at least one ignition heating element projecting with at least its heating region into the combustion chamber for igniting fuel vapor present in the combustion chamber, and a second heating device, with at least one evaporating heating element associated with the evaporative medium for affecting its evaporation characteristic.

Abstract: The invention relates to an electric fuel dosing pump (2) of a heating device (1), especially a water heating device in the form of a an auxiliary heater or an independent heating device of an automobile, having a control device (5) for controlling the dosing pump and optionally the heating device. The invention is characterized in that hydraulic/pneumatic states (Z) and parameters (F, N) of the fuel medium are detected in a signal detector (6) by means of the electrical behavior of the fuel dosing pump (2), especially the flow rate, and evaluated in said control device (5) for regulating the dosing pump (2) and optionally the heating device (1), especially also the fan motor (3) and the ignition device (4).

Abstract: A combustion chamber assembly for a heating device includes a combustion chamber housing which forms a combustion chamber, and an ignition member which projects with an ignition section into the combustion chamber. An evaporator medium, surrounding the combustion chamber radially outward at least regionally, is provided on an outer circumferential wall, bounding the combustion chamber radially outward, of the combustion chamber housing, into which evaporator medium fuel to be evaporated is introduced through the outer circumferential wall.

Abstract: An air heating device for integration into an air-conducting housing arrangement, particularly a housing arrangement of a vehicle air conditioner, includes a burner region, a heat exchanger region with a heat exchanger body, wherein in the heat exchanger body a combustion exhaust gas conducting space is constituted in which flow the hot combustion exhaust gases produced in the combustion in the burner region. At an outer side of the heat exchanger body a heat transfer rib arrangement with numerous heat exchange ribs for the air conducted in the housing arrangement to flow around; wherein at least a portion of the heat transfer ribs are constituted separately from the heat exchanger body and are kept in heat transfer contact with this.

Abstract: An air treatment module, in particular for thermal treatment of air to be introduced into the vehicle interior of a vehicle, includes a support arrangement to be fixed to a vehicle, a fan arrangement supported by the support arrangement, a first heat exchanger arrangement, supported on the support arrangement, for thermal treatment of air forwarded by the fan arrangement, further including a heating device and a second heat exchanger arrangement receiving heat from the heating device, the heating device and the second heat exchanger arrangement being supported on the support arrangement.

Abstract: The present invention relates to a shipping system (1) for shipping articles, comprising a shipping box (2) which can be converted between an in-use state in which it can be loaded with articles and a not-in-use state in which it has a reduced height in comparison with the in-use state while having the same base area, and comprising multiple positioning elements that are stackable one above the other, each having at least one holding fixture arranged side-by-side to hold a section of one of the articles. The shipping box (2) is designed to accommodate at least one stack of positioning elements in the in-use state and in the not-in-use state it is designed to accommodate the positioning elements.

Abstract: A burner arrangement for a heating device, particularly a vehicle heating device, comprising a combustion chamber (18) and a flame tube (22) conducting the combustion products away from the combustion chamber (18), having an inlet region (28) near the combustion chamber (18) at which combustion products enter the flame tube (22) and an outlet region (36) at which combustion products leave the flame tube (22). At least one intermediate outlet region (42) between the inlet region (28) and the outlet region (36), in which intermediate outlet region (42) a portion of the combustion products can emerge from the flame tube (22).

Abstract: A heating system for a vehicle includes a reformer arrangement for producing hydrogen from a hydrocarbon/mixed material mixture, a burner arrangement for reception of hydrogen produced in the reformer arrangement and combustion thereof, and a heat exchanger arrangement for transferring combustion heat produced in the burner arrangement to a heating medium.

Abstract: A combustion chamber assembly, in particular for a vehicle heating device, has combustion chamber housing in which a combustion chamber is bounded by a combustion chamber outer wall, the combustion chamber having a combustion chamber outlet aperture for the exit to a flame tube of exhaust gases produced during combustion, furthermore comprising a deflecting arrangement for deflecting at least a partial stream of the exhaust gases leaving the combustion chamber to flow along at least a partial region of the outer side of the combustion chamber outer wall facing away from the combustion chamber.