Abstract: A pressure control valve arrangement is described for controlling a fluid pressure in an ABS brake system of a vehicle such that, in the event of a tendency of individual wheels of the vehicle to lock, the brake pressure in at least one associated brake cylinder can be adaptively adjusted, including: a housing in which is formed at least one pressure-medium-conducting pressure medium duct and in which is provided a diversion of the flow of the pressure medium within the pressure medium duct from a portion of the pressure medium duct leading in one direction into a portion of the pressure medium duct leading in another direction, in which the pressure medium duct is produced together with the housing by primary forming, and in which the cross section of the pressure medium duct is oval and the major dimension of the oval cross section and the central axis of the pressure medium duct are arranged in a common plane, and the minor dimension of the oval cross section is perpendicular to the plane.

Abstract: A pressure control valve arrangement is described for controlling the fluid pressure in an ABS brake system of a vehicle so that, during a tendency of individual wheels of the vehicle to lock, the brake pressure in at least one assigned brake cylinder can be matched adaptively, a) two diaphragm valves and two electromagnetic control valves, activatable by an electronic control device, for the pilot control of the diaphragm valves being provided in the housing of the pressure control valve arrangement, b) the two electro-magnetic control valves having a double magnet with two magnet coils and also magnet armatures cooperating with solenoid valve seats and actuable by current being applied to the magnet coils, c) the housing having at least one pressure medium connection, connected to a service brake valve, for acting with pressure upon and/or relieving the pressure of the pressure control valve arrangement and also at least one working connection for connecting to the brake cylinder, characterized in that d) a

Abstract: An engine-independent vehicle heating system has a connection piece that communicates with a combustion chamber and is linked with a fuel supply. The heater system has a glowing body that is fastened in the connection piece and evaporates and ignites the fuel at least during a starting phase of the heater system. A sieve element that is disposed in the connection piece encloses the glowing body and transports the fuel supplied to the connection piece in the direction of the combustion chamber. The sieve element in the interior of the connection piece is at least partially spaced from an inner wall of the connection piece facing the sieve element.

Abstract: A combustion chamber of a burner for a vehicle heater or for thermal regeneration of an exhaust gas particle filter having a frontal boundary wall, a circumferential boundary wall, a connector for fitting a glow plug and a connector for conveying combustion air which projects from the frontal boundary wall into the combustion chamber and has at least combustion air outlets through the connector wall, in which the combustion chamber with the frontal boundary wall, the circumferential boundary wall, the glow plug connector and with or without the air supply connector takes the form of a one-piece precision-cast component.

Abstract: A device for feeding and igniting in particular gasoline as fuel for the vaporizing burner of a heater, in particular a vehicle heater, is disclosed. The fuel evaporated from a porous body is mixed with combustion air and burned in a combustion chamber of the heater after being initially ignited by a glow plug. In order to simplify the design and improve the efficiency of the device, the glow plug is mounted in a pipe insulated from the outer wall of the combustion chamber and is radially surrounded by porous tubular body that projects beyond the free end of the glow plug into the combustion chamber. Combustion air is supplied in the radial direction to the porous body in the area of the free end of the glow plug and fuel is supplied in the radial direction to the opposite end of the porous body. The part of the porous body located outside the combustion chamber acts as a distributor and temporary reservoir when fuel is supplied.

Abstract: A burner for a vehicle heater of a particle filter regenerator including a combustion air blower, a combustion chamber with a fuel evaporator, a fuel supply with a fuel metering pump by which the fuel is proportionately fed to the evaporator, a glow-plug to ignite a mixture of combustion air and vaporized fuel and a control device, in which the control device switches the flow-plug on to ignite the mixture, starts the fuel metering pump after a first period following the switch-on of the glow-plug and substantially simultaneously with the starting of the fuel metering pump or a second period thereafter initiates a gradual increase in the speed of the combustion gas blower from a standstill or low speed rotation.

Abstract: A fuel-operated heater, especially an auxiliary heater for a motor vehicle, with a fuel feed pump and/or with a combustion air fan, is provided with a combustion control circuit. The control circuit acts to maintain a predetermined air-to-fuel ratio at a constant value in the combustion chamber of the heater ("lambda value") by energizing the controllable fuel feed pump and/or the controllable combustion air fan.

Abstract: The vehicle heater described has a burner supplied from a tank through a fuel line to which a pressure-controlled fuel pump (2) and a solenoid valve (24) are connected. The solenoid valve offers a relatively high resistance to the flow of fuel. The pressure in the pump delivery line thus drops relatively slowly. If vapor/gas forms in the fuel line (L2, L3, L4) due to overheating, it must be driven out of the line as rapidly as possible when the heater is switched on. The solenoid valve (24) offers only a low resistance to air/vapor/gas, resulting in a rapid drop in pressure at the pump delivery outlet and hence an increase in pump frequency (i.e. pump performance). The gas is therefore driven very rapidly out of the line between the pump and the burner, thus avoiding any interruptions in operations due to gas/vapor which has collected in the fuel line.

Abstract: A vehicle heater with a pot-shaped, double-jacketed heat exchanger and a burner for the fuel to be burned extending into the heat exchanger coaxially to an axis of the heat exchanger. The burner has a combustion chamber with a flame sensor disposed within it. A side channel fan is provided for feeding combustion air into the combustion chamber. The burner has a glow plug positioned to be swept by a small partial flow of the combustion air for igniting the fuel. The axis of the heat exchanger and an axis of the fan intersect each other approximately at right angles. The heat exchanger has a central opening closed by a one-part angle flange with a angle flange first leg and with a angle flange second leg extending approximately at right angles to the angle flange first leg. The angle flange first leg is located in a plane extending approximately in parallel to the axis of the heat exchanger and the angle flange second leg is located in a plane directed at right angles thereto.