Abstract: An air-conditioning system for vehicles, that can be retrofit installed into a roof ventilation opening, a roof ventilation assembly, with an extremely low overall height above the roof of the vehicle, as a substitute for a hatch of the ventilation assembly provided for the closing and opening of the roof ventilation opening. The system has a receiving part that can be attached instead of the hatch without modification to the roof opening or hinge assembly for the hatch. The receiving part has a circulating-air intake device that is separated from the delivery side of a blower that is disposed in a recessed central area of the receiving part that can be inserted through the roof opening to below the level of the roof. The air-conditioning system, as a whole, by means of the hinge assembly of the ventilation system, can be moved in such a way that, also, a direct ventilation via the roof opening is possible.

Abstract: An air conditioning system for roof mounting on motor vehicles having a compact design, and a favorable ratio of performance density, whereby such air conditioning system is cost-effective for retrofit and maintenance purposes. The air conditioning system has a large surface condenser block of the condenser part, arranged between the evaporator blocks of the evaporator part, resulting in a nest effect design of the condenser part and evaporator part. In order to ensure low resistance discharge of the condenser part's exhaust, and to further ensure uniform admission of circulating air to the entire height and length of the evaporator block, a specifically designed trough-shaped housing part is provided, which serves to transversely separate the evaporator part and the condenser part. Such a design of the air conditioning system reduces the dimensions of the assembly's height extending above the vehicle roof to a minimum.

Abstract: A water heater having a burner unit and a combustion chamber from which the combustion gases are discharged and deflected into an annular out-flow space through which they flow along a heat exchanger to an exhaust outlet in the area of the burner unit. The outer casing of the heat exchanger is made of plastic and together with a metal inner casing define a ring-shaped space through which water flows as a liquid heat transfer medium. The outer casing made of plastic is connected with the inner casing made of metal in a gas-tight and pressure-resistant way that is also stable with respect to temperature changes. The result is a reduction in weight of the water heater because of the formation of the outer casing of plastic, and the efficiency of the water heater can be improved by the fact that the losses through heat radiating from the outer casing can be reduced.

Abstract: A water draining system for frames of motor vehicle sliding roofs, tiltout roofs and similar devices, having at least one water draining pipe consisting of plastic. The draining pipe is used for draining water from a gutter, formed by the frame and surrounding an opening in the roof at least on part of its circumference, via an aperture in the frame. The water drain pipe is directly molded onto the frame, and is especially injection molded on or vulcanized on.

Abstract: A device for driving a motor-operated closure part for an opening, especially on a motor vehicle, having a protective circuit for interrupting the closing movement when there is an indication that an object may be obstructing closure of the opening. A speed transmitting means exists that detects the adjusting speed of the closing part on at least one range of the adjusting path of the closure part that is critical with respect to the engagement of an obstruction. In addition, an evaluating stage is provided that responds to the speed signal and/or its rate of change with respect to time, for producing an obstruction signal that activates a control means of the circuit to interrupt the closing movement.

Abstract: A tilt-out roof for vehicles having a closure panel arranged in the area of an opening in the roof of the vehicle. A frame extends around the edge of the opening in the roof, and a telescopic jack, that is used for the lifting and lowering of the rear part of the cover, is connected to the frame, on the one hand, and to the closure panel, on the other hand. The telescopic jack has several threaded parts that engage with one another, one of which is connected with a turning handle. The turning handle has a rotary plate that establishes the connection with one threaded part and closes the telescopic jack toward the bottom, and a separate handle rim that is detachably connected with the rotary plate. The rotary plate acts to hold the threaded parts of the jack in a predetermined relationship with respect to one another when the handle rim is detached.

Abstract: A sliding/lifting roof for motor vehicles having a cover closing an opening in the roof in its closed position and, at both longitudinal sides of the opening in the roof, being guided in a slideable manner, by means of a respective guiding member in a longitudinal guide. The cover is disposed so that it can be pivoted around a swivel axis extending transversely, is connected, via a tilt-out mechanism, with a drive member, and, by a sliding of the drive member, can be swung out, while lifting its rear edge, above the roof surface, or is slideable, by lowering its rear edge, under the fixed roof surface. The tilt-out mechanism has a link that is connected with the drive member and a tilt-out lever that engages with the link, with the tilt-out lever being rotatably coupled to the cover and, with respect to the link, being longitudinally movable in the sliding direction of the roof by a certain distance as well as being swingable.

Abstract: An operating system for movable parts for the selective closing or exposing of openings, especially for sliding roofs and sliding/lifting roofs of motor vehicles. The operating mechanism has a motor drive for the movable part and an actuating member for starting the drive, if required. In order to facilitate, especially, the bringing of the movable part into intermediate positions, the actuating member is developed as a desired-value transmitter for the position of the movable part, and the drive is part of a control circuit which compares the position selected at the desired-value transmitter with the actual position of the movable part and adjusts the movable part until the deviation has become zero.

Abstract: A system for supplying motor vehicle diesel engines with fuel, having a fuel circulation system with a fuel supply pipe leading from a fuel tank, via at least one fuel filter, to an injection pump driven by the diesel engine; a fuel return pipe leading back to the fuel tank; a fuel-circulating pump that can be driven electrically and is not dependent on the operation of the diesel engine; and a heat exchanger for causing heat exchange between the fuel flowing through the fuel supply pipe and a liquid heat-transfer medium. Also, when the diesel engine is stopped, the fuel-circulating pump can be driven from an on-board power source. The fuel circulation system is arranged in such a way that, when the fuel-circulating pump is in operation, it is flushed by circulated fuel throughout its full length. An auxiliary heater located in the fuel circulation system may be used as a source of heat for the heat exchanger, as well as the vehicle interior, when the engine is not operating.

Abstract: A telescopic winch for tilting a cover closing a roof opening in a motor vehicle, with a plurality of threaded parts, screwable into one another, of which the outermost or innermost is connected with an axially fixed wheel and the other threaded part is connected with the cover. In order to make a telescopic winch of this type electrically drivable and to provide it with an emergency manual drive, provision is made for a crown gear to be on an outside jacket of the wheel, said crown gear being in mesh with a worm shaft of an electric motor unit, and for the mesh between the crown gear and worm shaft to be releasable. Separation between the crown gear and the worm shaft can be accomplished either by removing the wheel or by pivoting the electric motor unit.

Abstract: A heater fired with liquid fuel, especially a vehicle heater, utilizing a liquid heat transfer medium. The heater comprises a tubular combustion chamber and a heat exchanger mounted over the combustion chamber. The heat exchanger deflects exhaust gas leaving the combustion chamber in an axial direction. An annular space, which conducts the hot exhaust gas, is left between the heat exchanger and the combustion chamber. The heat exchanger is provided with ribs on its inner lining which project into the annular space. These ribs are aligned essentially radially and parallel to a central longitudinal axis of the combustion chamber and the heat exchanger. To improve the efficiency of the heat exchanger, at least a portion of the ribs are provided with an exhaust vorticizing arrangement along at least a portion of their length.

Abstract: A vaporization burner operated by means of liquid fuel for heaters, especially motor vehicle heaters. The burner has a combustion chamber, into which combustion air can be introduced in a turbulent manner under pressure. The burner also has a vaporization body made of an absorbent material that is supplied with fuel and has an essentially flat evaporation surface that faces into the combustion chamber for vaporizing the supplied fuel prior to mixing with the combustion air. Situated in the combustion chamber is an electric ignition device for igniting an initial flame. In accordance with preferred embodiments, the ignition device is an essentially flat glow-type heating element which is disposed in a plane that is adjacent and parallel to the evaporation surface of the vaporization body.

Abstract: A vehicle roof of the type having a cover that closes a roof open and is slidably and tiltably displaceable out of a position closing the roof opening is constructed to avoid the problem of making the outside contour of the cover match the outside contour of the fixed roof part, particularly, with respect to contours that convexly curve in a direction transverse to the cover displacement direction. In accordance with a preferred embodiment, this problem is solved by adjusting the transverse contour of the cover, when the cover is in its closed position, through a balancing of upward and downward forces effected by a rain gutter and respective pivot mechanisms for the cover and gutter.

Abstract: A motor vehicle roof arrangement having a cover that can be slid and/or tilted out with respect to an opening in the roof. The cover is movable by means of an electric motor through at least one incompressible driving cable. The electric motor is mounted at a front side of the opening in the roof on a stationary part of the roof, and by means of a secondary drive wheel of an intermediate drive, drives a pinion that is engaged in the driving cable. The pinion is arranged in a front rain groove of a roof frame essentially on the center longitudinal axis of the roof of the motor vehicle. The intermediate drive is located in a gear housing to which the electric motor is flanged to form a drive unit. A secondary drive gear of the intermediate drive is detachably connected with a shaft of the pinion by mating internal and external gear elements.

Abstract: A vaporization burner for a heater operated by means of liquid fuel, especially a motor vehicle heater. The burner is equipped with a combustion chamber and an absorbent body that can be acted upon by fuel via a fuel connection which is disposed on a carrier in the combustion chamber. In order to ensure a fast vaporization of the fuel even in the case of combustion chambers of small dimensions, the carrier is supported in the combustion chamber, so that it is protected against the dissipation of heat from it to surrounding parts.

Abstract: A heating device fed with free-flowing fuel and connected to an on-board voltage source, in particular, a vehicle heater. The heating device is equipped with a burner assembly which has a fuel supply, a combustion air fan and a heating element which ignites a fuel/air mixture after a preheating phase. During the preheating phase, the combustion fuel fan is shut off or at least is operated at less than the operating blower output. There is also a switching device which automatically turns on or switches the combustion air fan to its operating blower output after a preheating phase has been completed. The switching device is designed as a voltage-dependent time-function element, which presets a preheating time dependent upon the magnitude of the on-board voltage and which decreases the preheating time as the on-board voltage increases.

Abstract: A rigid cover for a sliding and/or outward moving top of a vehicle, with the cover being adapted to shut or close an opening in the top of the vehicle when in a closed position and being movable from the closed position to an open and/or outwardly extended position in which the opening in the top is at least partially open. The rigid cover includes a cover plate made of a translucent material with a frame supporting a bottom of a peripheral edge of the cover plate and an upper frame in contact with the top of a cover plate. The upper and lower frames are rigidly interconnected and the edge of the cover plate is secured between the two frames.

Abstract: An electromagnetic fuel delivery pump is formed by a combination of a diaphragm pump and a metering pump. Each of the pumps have working chambers and flow control valves are arranged to enable interconnection of the working chambers when the diaphragm pump executes a delivery stroke and the metering piston pump executes a suction stroke. In a preferred embodiment, a diaphragm of the diaphragm pump is disposed directly on an extension of a piston of the metering piston pump, which piston is connected with an armature of an electromagnet that produces the delivery stroke of the piston metering pump and the suction stroke of the diaphragm pump. The delivery stroke of the diaphragm pump and the suction stroke of the piston metering pump are executed under the influence of a common return spring.

Abstract: A vehicle roof provided with an opening closable by a cover and a frame of substantially U-shaped cross section extending along the edge of the roof opening. One side of the substantially U-shaped frame is higher than the other side thereof, and the higher side extends outside of the vehicle in the form of a flange for covering the edge of the vehicle roof defining the opening. A clamping arrangement for pressing the flange against the outer surface of the roof is provided, near the higher side, inside of the vehicle. To facilitate the installation of such a vehicle cover, especially in the case of a used vehicle, the clamping arrangement comprises a plurality of retaining plates which are pressed against the vehicle roof by screws. When the screws have been loosened, the retaining plates can be pivoted so that the frame can be introduced from outside of the vehicle into the roof opening without removing the retaining plates and screws.

Abstract: A vehicle sunroof with a cover closing a roof hatch, said cover being slidable rearward under the roof to open the roof hatch, and having two laterally directed, lengthwise displaceable brake rods, as well as two first guide parts running lengthwise of the vehicle along both sides of the cover. A roof frame extends rearward on both sides of the roof hatch, to which frame second guide parts, complementary to the first guide parts, are fastened, said parts meshing with the first guide parts and locating them in the vertical direction. In order to facilitate manufacture and installation of a vehicle sunroof of this type, provision is made for the roof frame to have a sloping surface on each side, opposite the ends of the brake rods in each intermediate open position, and an approximately horizontal support surface abutting said areas laterally and externally, for coacting with the brake rods despite variations in their lengthwise adjustment.