Abstract: A side-channel fan (1), especially for feeding combustion air in a parking heater (2) of a motor vehicle, with a fan body part (3) in an axial connection to an impeller (4), wherein the fan body part (3) has an inlet channel (5) and an outlet channel (6) and, the axial connection side (7) of the impeller, a bent side channel (8) connecting the inlet channel to the outlet channel, and an interrupter (9), which together form the 360.degree. circumference of the axial connection side (7), and at least one of the openings connecting the side channel (8) to the inlet channel (5) and to the outlet channel (6) is provided with a cover (10) in the area of the axial connection side (7), characterized in that the entire surface of the cover (10) located opposite the axial connection side or surface of the impeller (4) is arranged deeper, i.e., at a distance (d), in relation to the axial connection side.

Abstract: A motor vehicle heater arrangement is provided, the arrangement being connected to a vehicle. The vehicle heater arrangement includes a heater with a heater housing and with at least one of an engine coolant medium circuit connection and a motor vehicle interior space heating system heating medium connection defining a heating/cooling medium feed line connection and heating/cooling medium return line connection and with a fuel feed line connection. A water protection device is provided with the heater housing disposed therein. The heater and the water protection device are fastenable on an underside of the vehicle bottom. One of the heater housing and the water protection device has integrated securing points for securing to the vehicle floor.

Abstract: A fluid spray burner for a heater having a nozzle block which supports a spray nozzle and to which fuel can be fed from a fuel line via a fuel pump. A fuel pump is integrated in the burner housing, and in particular to a radial carrier plate thereof.

Abstract: A vehicle heater with a burner, a fan for the combustion air to be fed to the burner, a heat exchanger for heating the engines's cooling water, which is circulated in a closed circuit, and with a control device. A basic housing is provided substantially in the form of one of a parallelepiped and a semicylinder with an essentially flat, continuous upper housing surface. The basic housing is axially divided into a first housing end section, which is located at a first end and accommodates the burner and the heat exchanger, a middle housing part containing the fan, as well as a second housing end section comprising the control device. The inlet and outlet connections of the heat exchanger as well as a connecting branch for fuel to be fed to the burner are located within the upper surface of the basic housing.

Abstract: The invention pertains to a burner of a vehicle heater which includes a blower for supplying the combustion air, a combustion chamber having a lining which is porous at least in some areas on part of its inner surface, a means for supplying fuel to the porous area of the lining and an electric glow plug for igniting the fuel or fuel-air mixture evaporated from the lining.

Abstract: A device for reducing the generation of noise in a fan (11) having a gas intake channel (13), a gas discharge channel (14) and a gas propulsion device (15), in particular a side channel fan for supplying combustion air in a heater. At least in the regions of the opening cross-section (18, 19) of the gas intake channel (13) and/or the gas discharge channel (14) there is disposed structure for inducing a flow resistance (interference structure 20, 21).

Abstract: A space heater for a motor vehicle contains a burner with a combustion air fan. A series resistor (24) is provided for partial load operation. This resistor (24) is arranged in a housing (2, 6) which surrounds the electric motor (4) driving the fan wheel (14) of the combustion air fan (1) and through which combustion air is passed for cooling the electric motor and the resistor (24). The resistor (24) is soldered to a printed circuit board (20) located radially on the housing, downstream of a combustion air passage opening (22) designed as a cutout in the printed circuit board. The printed circuit board preferably carries a sound-absorbing plate (34) with a cutout (36) in the area of the resistor.

Abstract: An arrangement for the reduction of exhaust gas discharge temperature and for an increase in efficiency in heating devices is preferably used for the heating of the interior of mobile units. A baffle plate is arranged in an annular chamber defined between a flame tube of the heating device and a heat exchanger surrounding the tube.

Abstract: A motor vehicle auxiliary heater annular combustion air blower is disclosed having a housing defining a suction side of the blower and a delivery side of the blower. The housing also defines a mounting bore which extends substantially perpendicular to the bypass channel. A rotary slide valve is provided in the form of a cylindrical pin member which is rotatable within said mounting bore and includes a surface before variable throttling of said bypass channel independence upon the rotational position of said rotary slide valve.

Abstract: A heating device for pre-heating liquid fuel, especially diesel fuel and for heating devices of a low heating performance which are independent from a motor have a heating performance which is suitable for mounting into vehicles, which are driven by the liquid fuel. The pre-heating is effected by a transmission of heat of the exhaust gas to the fuel of the heating device, the fuel being lead through a continuous tubular wrapping in one layer or through a hollow cylinder formed or positioned around the exhaust pipe. This wrapping or hollow cylinder is part of the fuel main from the fuel tank to the fuel supply pump of the heating device. A pre-heating of the content of the tank is effected by the return of the pre-heated, but not burnt fuel through a fuel return main back into the tank. A heat transmitting jacket is advantageously disposed between the wrapping, or a hollow cylinder and the exhaust gas pipe.

Abstract: An arrangement for space heaters for motor vehicles, which are fired with liquid fuel including, (depending on the type of burner used), a glow plug for either igniting a fuel/air mixture and/or vaporizing fuel. Only one type of glow plug, i.e., a glow plug designed for a 12-V electrical system, is normally employed. If the motor vehicle has a 24-V battery, a compensating resistor, which has the same electrical resistance as the glow plug, is connected in series with the glow plug. The amount of electrical energy converted into heat in the compensating resistor is practically equal to that transformed in the glow plug. The compensating resistor is integrated within the burner housing, in which case it is located in the flow path of the combustion air and is properly cooled by the air flowing past it, to provide a safe trouble free and space-saving arrangement.

Abstract: A heating device for pre-heating liquid fuel, especially diesel fuel and for heating devices of a low heating performance which are independent from a motor having a heating performance which is suitable for mounting into vehicles, which are driven by the liquid fuel. The pre-heating is effected by a transmission of heat of the exhaust gas to the fuel of the heating device, the fuel being lead through a continuous tubular wrapping in one layer or through a hollow cylinder formed or positioned around the exhaust pipe. This wrapping or hollow cylinder is part of the fuel main from the fuel tank to the fuel supply pump of the heating device. A pre-heating of the content of the tank is effected by the return of the pre-heated, but not burnt fuel through a fuel return main back into the tank. A heat transmitting jacket is advantageously disposed between the wrapping, or a hollow cylinder and the exhaust gas pipe.

Abstract: A heater plug is cooled with combustion air for diesel oil-burning heating appliances, especially those provided with a vaporizing burner. The plug is screwed into a burner pipe joint, enclosing but spaced inwardly of the plug. The pipe joint also has inlet for supplying the fuel, and it is fastened to the furnace wall of the heating appliances. The burner carries a continuous lengthwise bore, accessible from one end face and opening into the heater plug coil, the inner end of the bore being connected to the combustion air channel across a proportioning throttle.