Abstract: A ventilator roof for use in motor vehicles with a roof opening made in a front part of a fixed roof skin. The roof opening can be closed by a single cover that can be swung, by pivoting around a pivoting axis at or near its rear edge, into a ventilation position in which the cover front edge is at a distance below the fixed roof surface, while the cover rear edge is kept approximately at the height of the fixed roof skin. Starting from the ventilation position, the cover can be lowered at its rear edge below the fixed roof surface and can then be slid as a whole rearwardly under the roof skin into an open position that at least partially opens the roof opening.

Abstract: Vehicle roof having a front cover and a rear cover adjoining each other in the longitudinal direction of the vehicle which, in a closed position, close a roof aperture in a fixed roof surface.Due to the effects of pure translational movement, the front cover is rearwardly displaceable into an open position, while the rear cover can be moved into a position permitting a sliding back of the front cover thereover. In accordance with the invention, the rear cover can be pivoted around an axis near its rear edge into a venting position, in which the front edge of the rear cover is lowered, relative to the rear edge of the front cover (FIG. 3).

Abstract: Actuating device for movable parts, such for closure parts for apertures in vehicles, having a reversible direct current drive motor, a polarity reversing actuating switch in the motor circuit for applying direct current to the motor circuit with a polarization corresponding to the desired motor rotational direction; a relay with a switch contact in the motor circuit which is in series with the polarity reversing switch; and further, having a position responsive switch connected with the relay control circuit for actuating the relay in a reference position of the movable parts, for the purpose of deactivating the drive motor by opening the switch contact. The relay is a direct current relay, which, upon application of a first or second voltage level at its control circuit, closes or, respectively, opens the switch contact.

Abstract: An electrical connection device for electrically operated components of heaters, especially vehicle heaters, in which block-shaped plug parts are molded on the lines coming from the components. The block-shaped plug parts are grouped side-by-side into a unit and a cap is attached to this unit. The cap has connection parts which are designed to be complementary to connection parts of the block-shaped plug parts so that a plug-in electrical connection is formed when the cap is mounted to the unit. Accoding to a preferred embodiment, the block-shaped plug parts are placed directly on the outside of a housing of a heater and they are connected with each other to form the unit with the help of interlocking connections and the cap. In another embodiment, the block-shaped plug parts are grouped into a unit and held together by a support having a pocket for each block-shaped plug part which is fastened to the heater by a holder.

Abstract: In a heating device, particularly one intended for use as a vehicle auxiliary heating device, a heat exchanger is provided for a liquid heat exchange medium, which is of a quadrangular, preferably cuboid design, having a planar closed end. Inside the heat exchanger, inner fins are provided defining exhaust gas channels, whose free ends are approximately on a circle whose center is the center axis of the heat exchanger or that of the cylindrical combustion chamber as a transition between the cylindrical combustion chamber and a rectanguloid outer housing which surrounds the heat exchanger. An outer, flat surface of the housing may be formed with a receiver for a control or similar device.

Abstract: A vehicle roof having a cover which, at its front edge, is displaceably guided in lateral guide rails extending below a fixed roof surface, and which is additionally supported at the guide rails by lifting levers. The lifting levers are connected at one end with the corresponding guide rail, and at the other end with the cover, and are both translatable in the vehicle longitudinal direction and pivotable around parallel axes. During the longitudinal movememt, the levers pivot as a result of interaction with a roof-mounted retaining bracket. The cover can be closed, can be lifted above the fixed roof surface into a vent position by a pivoting movement about an axis at or near its front edge, and can be retracted rearwardly over the fixed roof surface. For the longitudinal movement of the cover, and of the pivotal axis, located at one end of the lifting lever, there are provided separate drive components, which are in permanent engagement with the cover, or with one of the lifting lever ends, respectively.

Abstract: A process for operating an exhaust gas burner that can be used particularly in the regeneration of soot filters or the like, in which the exhaust gas burner is turned on to start the regeneration or the like only if the oxygen content in the exhaust gas has a sufficiently high value to readily support ignition. For this determination, recourse is, preferably, had to the instantaneous values of engine performance characteristics reflective of the presence of a high oxygen content in the exhaust gas, e.g., a low engine speed and/or low average pressure valve of the engine. For the determination, the accelerator position and/or the revolutions per minute of the internal combustion engine can be monitored. In the device, a control device is connected, upstream from the turning-on device of the exhaust gas burner, that activates the turning-on device only if the oxygen content in the exhaust gas has a sufficiently high value.

Abstract: Sliding and lifting roof for vehicles having a cover which, in its closed position, closes a roof opening in a fixed roof surface, which cover is mounted on lateral guide tracks and which can be pivotally raised to bring its rear end above the fixed roof surface, or after lowering of its rear end, can be rearwardly retracted below the fixed roof surface. A rain gutter that is displaceable in conjunction with the sliding movements of the cover underlies the rear edge of the roof opening when the cover is upwardly raised or closed, and is connected with a tilt assembly which induces the rain gutter to assume an inclined position when the cover is extended. The tilt assembly has control levers which are rigidly connected with the rain gutter and are pivotably connected to the cover at a fixed point.

Abstract: A process for operating a fuel-operated heater, in which the instantaneous operating condition of the heater is determined according to appropriate criteria and the maximum producible heating power is adjusted according to it. The instantaneous operating condition of the heater is used as the control value for instantaneous maximum producible heating power to optimize the yield of the heating power of the heater without exceeding safety limits, especially component safety limits. Further, an arrangement for performance the process has a detection device, such as a sensor for determination of a characteristic component temperature, which works together with an adjustment device for adjusting the instantaneous maximum producible heating power. This adjustment device controls the fuel feed device of the heater by an actuator and appropriately changes the amount of fuel fed to the burner of the heater. Additionally, the amount of combustion air fed to the burner can, optionally, be appropriately changed.

Abstract: An exhaust gas unit, for multicylinder diesel internal combustion engines with at least one particulate filter and a regeneration device, in which at least four particulate filters are placed parallel to one another in branches of at least one exhaust gas pipe. Thus, in the exhaust gas unit of such a multicylinder diesel internal combustion engine, several small particulate filters can be used that can be produced at resonable cost. At the same time operating safety is increased, since when one of the parallel filters falls or during regeneration of one of them, the operation of the internal combustion engine can continue essentially unimpeded, so that a vehicle equipped with such an internal combustion engine can continue to be operated. With such a design of an exhaust gas unit, a regeneration device in the form of a burner that preferably can be operated by exhaust gases from the exhaust gas unit can be assigned to each pair of filters.

Abstract: Device for controlling the sliding and lifting movements of a cover in sliding and lifting roofs of vehicles, which device has an input drive element and an output drive element from which both the sliding and the lifting movements are derived. To this end, there is provided a gear assembly having a planetary gear that is operationally controlled between the input drive and the output drive elements. During operation of the drive elements, starting from a predetermined gear position that corresponds to a reference cover position, the planetary gear automatically changes its gearing ratio, based upon the drive direction, in such a way that at equal input drive speeds, the lifting movement is slower than the sliding movement. The gear assembly has a double epicyclic gear. Additionally, a blocking device is provided which, when driving the input drive element from the predetermined gear position automatically blocks either a first or a second gear element of the epicyclic gear, depending on the drive direction.

Abstract: Hollow chamber seal for sealing an edge gap between an edge of a fixed roof section and a movable cover of a vehicle roof in which both a deformation of the hollow chamber and an additional deformation of the seal are possible to compensate for the gap tolerances. In accordance with preferred embodiments, to produce the additional deformation, at least one hollow chamber part is connected to a sealing body for pivotal movement around a bending axis that extends substantially parallel to the major surfaces of the cover in a direction parallel to the edge of the cover.

Abstract: A vaporization burner for a heating device operated with liquid fuel, particularly a motor vehicle heating device, has a combustion pipe defining a combustion chamber, and an absorbent body arranged on a carrier, fuel being supplied to the absorbent body via said carrier. At least part of the carrier is not covered by the absorbent body, the uncovered area is provided with a through-opening. An ignition device is arranged behind the carrier and, preferably, extends into an ignition chamber, formed behind the carrier, by an ignition housing having a wall with an opening for supplying combustion air into the ignition chamber. Fuel, which has been vaporized by the absorbent body, reaches the ignition chamber via an opening in a portion of the carrier covered by the absorbent body and forms a combustible mixture. The mixture in the chamber is ignited by means of the ignition device, resulting in a pilot frame which extends through the through-opening in the uncovered area of the carrier.

Abstract: A fuel supply system for an auxiliary vehicle heating device to which fuel can be supplied via the fuel supply system of an internal combustion engine. A fuel storage reservoir is provided which supplies fuel to an auxiliary vehicle device, and is arranged in the engine compartment of the vehicle. The storage reservoir is filled with fuel in a batchwise manner from any vehicle-contained fuel supply source, preferably via an elongated slot opening into a fuel receiving space of the reservoir from a fuel line that is in bypassing relationship to the reservoir. The fuel storage reservoir has a ventilating value leading to the atmosphere. In accordance with one aspect of the inventive concept, the fuel storage reservoir can receive a fuel pump which forwards the fuel from the fuel storage reservoir to the auxiliary heating device, so that the pump and reservoir form a single-part unit.

Abstract: A vehicle roof having a fixed roof structure through which a roof opening extends and which is closable and selectively openable by a sunroof apparatus having a pair of cover panels which, in a position closing the roof opening, are disposed one behind the other in the vehicle longitudinal direction. The front panel is displaceable from its closed position into an upwardly tilted position and, while upwardly tilted, is rearwardly slidable to a position in which a rear portion of the front cover panel projects over the rear cover panel or, when the rear cover panel (which is detachably mounted) is removed, projects over a rear edge of the roof opening. The construction of the sunroof apparatus enables the roof opening to extend approximately the full length of the fixed roof structure.