Abstract: A frame arrangement for a vehicle roof of the type having a roof opening which can be closed and selectively at least partially opened by displacement of a cover panel by actuating cables, the cover being guided by guide element tracks on the side parts of a support frame. According to the invention, the frame arrangement is provided with a guide part, which is set on the frame and which contains guide channels for the actuating cables and forms an upper sliding surface of the lateral tracks for the guide element. Advantageously, the guide part is constructed of a U shape that extends over the side parts and the front side of the frame. Preferably, this guide part is produced of plastic, while the frame consists of a sheet metal part.

Abstract: A burner for difficult to combust gas mixtures, particularly those including exhaust gases of an internal combustion engine, that is preferably intended for the regeneration of particle filter units in the exhaust gas duct of an internal combustion engine, such as a diesel internal combustion engine. For initiating the regeneration of such so-called soot filter units, the burner generates hot combustion gases at the outlet thereof. The burner includes, at a distance from the discharge opening of a fuel injection nozzle, a baffle barrier that extends approximately perpendicular to the center axis of the fuel injection nozzle. This baffle barrier divides the combustion chamber into an energy-rich zone with a gas mixture prepared to be ignitable and a second zone in which the exhaust gas from the internal combustion engine is diverted.

Abstract: A soot filtering unit in the exhaust gas system of a diesel internal combustion engine that includes at least two parallel soot filters. For regeneration, a regeneration device, having at least one burner and control flap, is provided upstream from the soot filters of the soot filtering unit. The burner(s) provided in the soot filtering unit supplies high temperature gases for the regeneration of the soot filters, and exhaust gas from the exhaust gas pipe is fed thereto as an oxygen carrier for the combustion process. According to a first embodiment, a single burner is provided for all soot filters to be regenerated and the burner does not lie directly in the pipes of the exhaust gas pipe that conveys exhaust gas to the soot filters. Preferably, exhaust gas is supplied to the burner(s) through separate exhaust gas feed pipes but, alternatively, a separate burner can be located directly in each branch of the exhaust pipe upstream of the respective soot filter provided therein.

Abstract: A vehicle roof with a roof opening is provided in a fixed roof area that can be closed by a closure panel, which is slidable on tracks and/or may also be raised at its rearward edge, wherein an actuating device, provided to drive the closure panel, and the tracks for the closure panel are unified into an installation unit attached to the fixed roof area bordering the roof opening. The installation unit can be attached directly to the roof opening by connecting brackets that may be attachment flanges or the like, or by a frame, mounted to or formed by the fixed roof area bordering the perimeter of the roof opening. A water drainage device may be provided that is formed from the fixed interior headliner or may be a separate water-collecting basin carried by the interior headliner. If a slidable interior headliner is provided, the tracks can be formed directly on the fixed interior headliner or may be constructed on the water-collecting basin, if such a basin is provided.

Abstract: A water type heater, in particular a vehicle auxiliary heater having a temperature safety mechanism, intended to prevent overheating damage to temperature-sensitive parts of the heater, that utilizes a contact sensor that is in heat conducting connection with the heat exchanger. As a heat conducting connection, a direct physical contact between the heat exchanger and a water jacket casing of the heater can be utilized that is, preferably, achieved with the aid of a projection, and optionally, a diametrically opposite projection acting as countersupport. In a modified embodiment, an elastic body that conducts heat well can be placed in a compressed state between the jacket casing and the heat exchanger. The contact sensor then lies against the outer surface of the casing as the temperature safety mechanism. The elastic body that conducts heat well is suitably made in the form of a disk made of a graphite material.

Abstract: A burner for hard-to-ignite mixtures, such as with exhaust gases of an internal combustion engine, in which an ignitable mixture is prepared in a locally limited area for producing an ignition flame that is then used for igniting the hard-to-ignite mixture. According to one embodiment, the burner has an auxiliary ignition burner that is integrated into the actual burner and that is operated with compressed air, which is delivered either by a vehicle compressed air system or by a separately provided air compressor. In an alternative embodiment, air is fed in, additionally, by an air injection device to an outlet area of the fuel nozzle and in the vicinity of the ignition device to prepare an extremely ignitable mixture in this area, which is used to generate an ignition flame. The air injection device can be supplied with compressed air in the same manner as for the auxiliary ignition burner in the first embodiment.

Abstract: A vehicle roof that has an aperture in a fixed roof area which can be opened and closed by a closure panel, and in which a fixed interior headliner covers the inside of the fixed vehicle roof, while a slidable interior headliner is provided that covers the underside of the closure panel. The guides for the slidable interior headliner may be provided as a separate part mounted on the fixed interior headliner or may be integrally formed as a portion of the fixed interior headliner. When the vehicle roof has a water drainage device, the guides for the slidable interior headliner can be provided on a water-collecting basin serving as a water drainage device. The guides for the slidable interior headliner function also as a water retaining partition for the water drainage device.

Abstract: A heater, in particular a vehicle auxiliary heater, of the type which operates with a liquid heat exchange medium and which is tied, for example, into the coolant circuit of a motor vehicle. In this heater, a mounting space for a control device is formed on a jacket-like outer casing, preferably a formation cast integrally as part of the outer casing. In this mounting space, circuit boards and printed circuit cards of the control device and sensor elements are mounted. Heat produced by semiconductor power components of the control device is removed to the surroundings by wall surfaces, in particular side walls, of the mounting space to which they are mounted. An electric connection device is provided that connects the inputs and outputs of the control device to the respective operational parts to be controlled and/or to the vehicle.

Abstract: A soot-filtering unit for an exhaust section of a diesel internal combustion engine with a supercharging device. The soot-filtering unit has at least on soot filter in an exhaust line and a regeneration device for the soot filter which includes at least one burner. The configuration of the unit connects an air intake of the burner of the regeneration device to the supercharging device so that the burner is supplied with a portion of the air charge from the supercharging device of the diesel internal combustion engine. In this connection, the configuration can be done in such a way that the burner is supplied exclusively with air from the air charge produced by the supercharging device, or so that the burner is supplied with a mixture of air from the air charge and exhaust gas from the exhaust gas line.

Abstract: A ring channel blower for combustion air conveyance in heaters, preferably motor vehicle heaters. With this ring channel blower, there is a gradual transition from the pressure area to the discharge opening of a ring channel that is covered at a side of the ring channel proximate an impeller by an upstream extending section of a cross piece-shaped interrupter. Suitably, a sickle-shaped or sail-shaped section covering the ring channel is provided which, starting from the inner edge of the ring channel, approximately at the height of the projection of the discharge opening on the ring channel, uniformly tapers in a direction opposite the compression direction in the ring channel of the ring channel blower and ends in a type of rounded tip on the outer edge of the ring channel of the ring channel blower.

Abstract: A ring channel blower in which, in the discharge area of the ring channel blower, a cross piece-shaped interrupter has a discharge side boundary edge that is configured such that between the inner edge of the ring channel and the facing edge of the respective vanes of the impeller as they pass thereover an angle of at least 25.degree. is initially enclosed and this angle increases gradually to 90.degree. when the intersection of the boundary edge and facing impeller vane edge is at the outer edge of the impeller. The discharge side boundary edge incorporates an inner end section that is approximately tangent to the inner edge of the ring channel and an outer end section that is approximately tangent to the outer edge of the impeller, and both of these tangent sections are connected to each other by a circular arc section.

Abstract: A heating device, particularly an automotive heating device, in which a noise muffling device is integrated within the heating device. The muffler can be provided in the combustion pipe defining the combustion chamber, or the combustion pipe, itself, can be designed as the muffler. The muffler operates by absorption and/or reflection sound muffling techniques in accordance with various embodiments, and may, simultaneously, purify the combustion gases, for example, by catalytic afterburning, and/or by filtering of soot particles. The muffler is arranged in a hot zone, but not in the flame area of the combustion chamber, to achieve a self-cleaning action. In other embodiments, noise muffling material is arranged in an exhaust gas collection chamber to achieve sound muffling based on reflection and/or absorption and/or other conventional sound reduction methods. In all cases, the need for an external muffler in the exhaust line from the heating device is eliminated.

Abstract: Device for actuating at least one helically threaded, incompressible drive cable, which is axially movable, having a drive pinion seated on a drive shaft, and a cable guideway for guiding the drive cable in the area of the drive pinion. For the purpose of noise reduction, boundary edges of the cable guideway contacting the drive cable are of a configuration such that they form an angle with the longitudinal axis of the drive cable which deviates from 90 degrees; whereby an acute approach angle enclosed between the boundary edges of the cable guideway and the sections of the turns of the helical thread facing them, is larger than an acute elevation angle which is enclosed between the helical turns and a vertical plane which extends perpendicular to the longitudinal axis of the drive cable.

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: 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: 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.