Abstract: The invention relates to a pressure regulator for a fuel injection system of an internal combustion engine, in which a pressure difference prevailing between a pressure inlet and a pressure outlet can be kept essentially constant by opening and closing at least one valve, which valve includes a valve closing member forced into the closing position against a valve seat by the action of a valve closing spring. The valve spring is formed by means of at least one pivotably supported valve leaf spring, and an arm, toward the valve seat in terms of the pivotable bearing means, of the valve leaf spring is braced on the valve closing member, and an arm of the valve leaf spring located on the side opposite the valve seat is braced on a support body, in such a way that a torque equilibrium prevails at the valve leaf spring.

Abstract: In a feed unit for delivering fuel from a supply tank (10) with a filter cup (13) having a central chamber (14) and an annular chamber (15) enclosing the latter, with a filter cover (30) which closes the annular chamber (15) and which contains an inlet duct (36) to the annular chamber (15) and an outlet duct (37) from the annular chamber (15), and with a feed pump (22) which is inserted in the central chamber (14) and which projects with a suction connection piece (26) through an opening (20) into a suction space (19), assembly is simplified and manufacturing costs are reduced in that the clearance diameter of the central chamber (14) is dimensioned so as to be greater than the outer diameter of the pump housing (23), and an axially projecting pressure connection piece (27) is formed at the other end side of the housing (23) remote of the suction connection piece (26) and a mounting cap (38) which engages over the pressure connection piece (27) is formed at the filter cover (30).

Abstract: The invention relates to a pressure regulator for a fuel injection system of an internal combustion engine, in which a pressure difference prevailing between a pressure inlet and a pressure outlet can be kept essentially constant by opening and closing at least one valve, which valve includes a valve closing member forced into the closing position against a valve seat by the action of a valve closing spring. The valve spring is formed by means of at least one pivotably supported valve leaf spring, and an arm, toward the valve seat in terms of the pivotable bearing means, of the valve leaf spring is braced on the valve closing member, and an arm of the valve leaf spring located on the side opposite the valve seat is braced on a support body, in such a way that a torque equilibrium prevails at the valve leaf spring.

Abstract: A feeding aggregate for fuel has a feed pump which is formed as a side channel pump and has a housing, a pump chamber formed in the housing, and an impeller arranged in the pump chamber, an electric motor provided for driving of the impeller and having a stator and a rotor, with the rotor formed of one piece with the impeller, the feed pump having at least one pump stage, a rim of vanes having vane chambers therebetween and provided on at least one end side of the impeller, a partial ring-shaped side passage formed in the housing opposite to the rim of vanes and having an inlet and an outlet spaced from one another in a peripheral direction of the impeller and open into the side passage, the at least one pump stage of the feed pump having the rim of vanes only on one end side of the impeller and having the side passage in the housing opposite to the rim of vanes, the inlet and the outlet of the side passage being arranged at a same end side of the impeller, and the impeller at an end side which is opposite to

Abstract: A feeding device for feeding fuel, comprising a feed pump, an electric motor driving the feed pump, filtering means, a housing composed of synthetic plastic and formed as a filter casing for receiving the electric motor, the feed pump and the filtering means, the filter casing having concentric housing walls, and a metal jacket arranged at the concentric housing walls at least at one side.

Abstract: A feeding aggregate for fuel has a feed pump which is formed as a side channel pump and has a housing, a pump chamber formed in the housing, and an impeller arranged in the pump chamber, an electric motor provided for driving of the impeller and having a stator and a rotor, with the rotor formed of one piece with the impeller, the feed pump having at least one pump stage, a rim of vanes having vane chambers therebetween and provided on at least one end side of the impeller, a partial ring-shaped side passage formed in the housing opposite to the rim of vanes and having an inlet and an outlet spaced from one another in a peripheral direction of the impeller and open into the side passage, the at least one pump stage of the feed pump having the rim of vanes only on one end side of the impeller and having the side passage in the housing opposite to the rim of vanes, the inlet and the outlet of the side passage being arranged at a same end side of the impeller, and the impeller at an end side which is opposite to

Abstract: The fuel delivery device (12) has a receptacle (16) arranged in a storage tank (10) and a delivery unit (20) delivering fuel from the receptacle (16) to the internal combustion engine (14) of a motor vehicle. Further, there is provided at least one suction jet pump (40) which delivers fuel from the storage tank (10) into the receptacle (16). The suction jet pump (40) is fastened to an upper edge area (17) of the receptacle (16) as a separate constructional unit. The suction jet pump (40) is formed by a constructional unit having a propelling nozzle (41), a connection (43) for a propelling line (44), which connection (43) opens into the propelling nozzle (41), a mixing pipe (42) following the propelling nozzle (41), and a connection (45) for a suction line (46), which connection (45) opens into the mixing pipe (42).

Abstract: The apparatus for supplying fuel includes a fuel tank and a fuel feed unit in the fuel tank. The fuel feed unit has a main housing, a suction cover arranged in a bottom part of the main housing, a fuel pump and a degassing valve arranged in the suction cover for degassing the fuel pump. The fuel pump itself includes an impeller housing with a circular passage for fuel flow and an electric-motor-driven impeller. The impeller housing is arranged in the main housing and next to the suction cover and it is provided with a degassing passage connecting the circular passage with the degassing valve. To improve starting behavior the fuel feed unit has a degassing valve in the suction cover, which is connected with the circular passage of the impeller housing by a degassing passage. The degassing valve opens to the fuel tank when pressure in the degassing passage exceeds a predetermined value for degassing the fuel pump.

Abstract: The armature (26) has metal segments (42) separated from each other by grooves (46) distributed around its circumference on a front side thereof. Commutator covers (48) are placed on the segments (42) and soldered with the segments (42) in order to form the plane commutator (32). The commutator cover (48) has respective recesses (50) in its front side facing the metal segments, which correspond in their size and shape at least approximately to the segments (42). When the commutator cover (48) is assembled in the armature each segment (42) is inserted in a corresponding recess (50) of the commutator cover (48) and is soldered in the recess (50). Side surfaces of the segments (42) facing in the circumferential direction and edge surfaces pointing radially inwardly are covered by the commutator covers (48). The commutator covers (48) are positioned exactly by the metal segments (423) inserted in their recesses and are separated from each other by comparatively small slots (56) in the armature.

Abstract: The invention relates to a device for a fuel system, having a pressure chamber that communicates with a fuel connection and having a diaphragm that is installed at its outer peripheral region in a housing and partitions off the pressure chamber. A preassembled unit can be fastened, with the diaphragm built into the housing, on the basic body and the diaphragm can come to rest on a stop provided on the basic body. The device is intended in particular for regulating a pressure in a fuel system.

Abstract: The invention relates to a device for a fuel supply system, having a pressure chamber that communicates with a fuel connection, and having a diaphragm built in on its outer peripheral region in a basic body which partitions off the pressure chamber, wherein the diaphragm is fastened in the peripheral region with a spring ring that is under initial tension and is retained on the basic body.

Abstract: A delivery device for fuel to an internal combustion engine, which includes a fuel reservoir. After the engine is shut off or in the event of an accident, there is the danger that the pressurized fuel present in the fuel reservoir will escape from the delivery device. A blocking device is provided on the fuel reservoir, which after the engine is shut off or after an accident, the blocking device engages with an actuation rod that is provided with detent teeth, by means of an electromagnetically actuated locking pin and thus prevents a force impingement of a compression spring on the movable wall of the fuel reservoir. By use of the blocking devices the pressure in the fuel line is completely reduced even after the escape of small fuel quantities. The delivery device is suited for mixture-compressing internal combustion engines with externally supplied ignition.

Abstract: A feeding device for fuel having an electric motor, a feed pump which is driven by the electric motor, a filter arranged in a fuel stream of the feed pump, a housing accommodating the electric motor, the feed pump and the filter, a fuel tank for a fuel supply and provided with a tank flange which forms a cover, tubular connections for guiding a fuel stream in a feeding direction and to the tank flange, the tubular connections being composed of an electrically conductive plastic and producing a throughgoing electrical ground connection of all components through which a fuel flows.

Abstract: Process for controlling the warm-up in an internal combustion engine wherein the combustion chamber pressure is obtained and evaluated, so that, using the evaluation of the combustion chamber pressure signal, the combustion is controlled so that combustion is not completed at the time the exhaust valve opens during warm-up.

Abstract: In a process for controlling the warm-up in an internal combustion engine, the combustion chamber pressure is evaluated, so that the warm-up period is divided into first and second phases that are controlled differently.

Abstract: A device for supplying an internal combustion engine with fuel has a supply container from which the fuel is supplied and having an opening, a feed pump arranged in the supply container and insertable into the supply container through the opening, a closure part for closing the opening of the supply container, a pressure regulator arranged on the closure part and having a pressure chamber with a connection to a pressure side of the feed pump, to an internal combustion engine and to an unloading chamber, the closure part having a flange-shaped base body which closes the opening and is provided with a depression, a pipe formed of one piece with the body for forming a connection of the pressure chamber to the unloading chamber and extending into the depression, an elastically deformable diaphragm group which closes the depression for forming the pressure chamber, the pipe having a seat with which diaphragm group at least partially directly cooperates, a spring loading the diaphragm group toward the pipe so that

Abstract: An apparatus for governing an idling rpm of an internal combustion engine by controlling a quantity of operating fluid that can be supplied to the engine from an operating fluid source via at least two flow lines. A first valve opening cross section at a first valve opening is controlled by a first valve closing member, and a second valve opening cross section and a second valve opening is controlled by a second valve closing member. The first and second valve closing members are adjustable by an adjusting drive in such a manner that the first valve opening and the second valve opening are disposed parallel to one another between the operating medium source and the intake conduit of the engine. The valve closing members are coupled in such a way that upon their actuation, the first valve closing member always uncovers a flow cross section at the first valve opening first, and only then does the second valve closing member uncover a flow cross section at the second valve opening.

Abstract: A device for controlling the idling speed of an internal combustion engine by controlling a quantity of operating medium which can be fed to the internal combustion engine from an operating medium source via at least two flow lines. A first valve operating area is controlled at a first valve opening by a first valve closing element, and a second valve opening area is controlled at a second valve opening by a second valve closing element. The first and the second valve closing elements can be adjusted by an actuator in such a way that the first valve opening and the second valve opening are arranged in series one behind the other between the operating medium source and the intake port of the internal combustion engine.

Abstract: A device for operating a gas-discharge lamp includes a starting member and a power member for supplying energy to the lamp. A switch is arranged between the lamp and the power member and connects the power member with the lamp subsequent to the initiation of the starting process.

Abstract: An apparatus for governing the idling rpm of an internal combustion engine, in order to control a quantity of operating fluid to be delivered to at least two flow lines of the engine. According to the invention, the first valve closing member and the second valve closing member are disposed axially displaceably relative to one another and coupled via a slaving device in such a way that in the closing position of the first valve closing member, the second valve closing member is likewise closed, and the second valve closing member is adjustable in the valve opening direction only after attainment of a predetermined opening position of the first valve closing member. The closing properties of the apparatus can be adapted as required by means of the selection of the disposition and design of the springs that act upon the valve closing members.