Abstract: Known adjusting devices, in a drive motor and subsequent gearing which is arranged in a housing and closed by a lid, have conductors to produce contact of a motor, a plug, or an electronic control system, which conductors are welded to the corresponding mating contacts or are embodied as corresponding plug contacts. According to the invention conductors are employed as a stamped grid and sheathed with the plastic of a lid. Moreover the opposite ends of the conductors are likewise sheathed by a plastic of the housing. Non-sheathed sections of the conductors arranged between the two housing parts serve according to the invention as a hinge to produce the defined opening and closing of the lid relative to the housing. Moreover, the entire electronic control system with an angle sensor and power transistors is integrated in the lid by injection molding.

Abstract: The invention relates to a controllable two-way valve, in which a valve rod is connected in a permanent manner to at least two valve members, the valve rod is activated by means of an actuator. The housing comprises an inlet or outlet and two corresponding outlets, or inlets. According to the invention, the two valve members correspond with at least two valve seats and the two or more valve members have three control surfaces. The invention thus provides a dirt-resistant valve, which is easy to operate, has fixed valve members and does not require additional equipment. The valve permits both the inlet to be completely blocked and the two outlets to be controlled independently of one another.

Abstract: The invention relates to an adjusting device (1) which is characterized in that electrical contact is made by means of substantially exposed conductor tracks (12, 14) which are linked with a housing (9) of the adjusting device (1) merely in a positive fit. The conductor tracks (12, 14) are introduced by introducing a continuous perforation comb (13) and severing the webs (22) connecting the individual conductor tracks (12, 14) in an additional step. The inventive adjusting device is advantageous in that while having structurally identical housing components (9), it allows to replace the conductor tracks (12, 14) only or embody them differently, depending on how many contacts are required. It is therefore possible to adapt the conductor tracks to corresponding connector types or different position detecting devices without having to replace the entire board or housing (9) while ensuring an extremely reliable contacting.

Abstract: Flap bearing mountings of the present invention are for mounting flap devices (5), such as switch-over, tumble, or swirl flap devices, on a housing (2) of an air intake port system (1) of a combustion engine. Mounting of flap devices (5) is accomplished by thermoforming projections (19) that are formed on bearing elements (10) of the flap device (5) and that extend through corresponding apertures (20) formed in the housing (2) of the air intake port system (1) of a combustion engine. This structure makes it possible to cost-effectively and precisely mount one-piece flap shafts (6, 7) in all air intake port systems (1), without having to use additional mounting elements. Through the exact, precise fixing of the mounted position, deformation of the shaft (6, 7), having flap bodies (8) arranged thereon, is reliably prevented and the service life of the entire flap device (5) is prolonged.

Abstract: An adjustable two-way valve device is described that is embodied as a rotary valve. According to the invention the use of the rotary valve as a two-way valve is achieved by the skillful arrangement of passage openings of a valve plate with respect to control openings of a valve element. Thus it is possible to control mass or mixed flows independently of or dependent on one another with only one valve element. In particular a use in the field of exhaust gas recirculation with a bypass line and an exhaust gas cooler is advantageous, since mixed flows and thus temperatures can be run.

Abstract: The invention relates to an air-intake duct system (1) in which a throttle valve (40), an exhaust gas recirculating valve (29), a bypass valve (19), an exhaust gas cooler (11), against which exhaust gas flows via bypass valve (19), and, optionally, an air mass sensor are integrated. A complete intake unit for modern engines is hereby created, with which achieves a charging optimization and thus a reduction in fuel consumption as well as a reduction in pollutants by a corresponding thermal management in the engine by the exhaust gas cooler (11) that, together with a shell (3, 4) of the housing (2), is manufactured as a single piece. The individual add-on pieces (12, 19, 29, 40, 59) are optimally matched to one another and have, due to their designs, a low weight and a low finishing work requirement. This makes it possible to distinctly reduce assembly and manufacturing costs.

Abstract: The invention relates to a heat exchanger with a channel (4) through which cooling agent flows and a channel (3) through which fluid to be cooled flows, whereby ribs (6) project into at least one of the channels (3, 4). According to the invention, these ribs (6) feature a linear approach edge (11) and a linear flow-off edge (15), whereby the side walls (12) run continuously between the approach edge (11) and the flow-off edge (15). By these means it is achieved that a turbulent boundary layer forms at the ribs, which boundary layer ends in a turbulent eddy in the area of the flow-off edge (15). This leads to an increased efficiency of the heat exchanger and simultaneously to a good homogenization of the fluid. Moreover, sooting is reliably avoided.

Abstract: The invention describes a bypass valve (1) that can be used as a divert air valve. Bypass valves (1) that work in the closed or opened position in a force-balanced or pressure-balanced manner are known. During the opening of the bypass valve (1), a lower pressure is produced in a gap (25) between a valve closing body (3) and a valve seat (20), which pressure destroys the force balance and thus loads a movable valve unit (2) in the closing direction. In order to prevent this, according to the invention pressure equalization openings (24) are embodied or arranged with respect to the gap (25) in such a way that a reduced pressure is introduced into the chambers (7, 8) in the interior of the valve, so that the closing-operative force is distinctly reduced. By these means, the opening times of such a bypass valve can be distinctly reduced.

Abstract: The invention relates to a throttle valve adjusting device (1) which comprises a throttle valve housing (2) linked with a drive unit (6). According to the invention, the electric motor (7) of said drive unit (6) is disposed both outside the housing (9) of the drive unit (6) and outside the throttle valve housing (2) so that its pole tube (16) lies substantially exposed and at the same time serves as the motor casing. Said pole tube (16) has a closed (18) and an open end (17) which is closed by a contact plate (10), while the closed end (18) comprises a bearing element (19) for the drive shaft (14) of the electric motor (7). The inventive throttle valve housing is improved in terms of construction space required and materials used, thereby considerably reducing the costs for production and assembly as well as reducing its weight.

Abstract: The invention relates to an air-intake duct system (1) in which a throttle valve (40), an exhaust gas recirculating valve (29), a bypass valve (19), an exhaust gas cooler (11), against which exhaust gas flows via the bypass valve (19), and, optionally, an air mass sensor are integrated. A complete intake unit for modern engines is hereby created, with which both a charging optimization and thus a reduction in fuel consumption as well as a reduction in pollutants are achieved by a corresponding thermal management in the engine by the exhaust gas cooler (11) that, together with a shell (3, 4) of the housing (2), is manufactured as a single piece. The individual add-on pieces (12, 19, 29, 40, 59) are optimally matched to one another and have, due to their designs, a low weight and a low requirement of finishing work. This makes it possible to distinctly reduce assembly and manufacturing costs.

Abstract: An exhaust gas recirculation system for a combustion engine is proposed that includes all important functions within a housing. For this purpose an exhaust gas recirculation valve, an exhaust gas cooling device with a heat exchanger unit, as well as a bypass channel with a bypass flap likewise embodied in the housing, form a unit. In addition, the exhaust gas recirculation valve in the area of its valve seat is cooled by the coolant of the exhaust gas cooling device. Thus a solution is proposed that, in comparison with known exhaust gas recirculation systems, greatly reduces construction space and weight, at the same time features low-cost assembly, and is also to be implemented very cost-effectively by the possibility of producing all housing parts in the die-casting method.

Abstract: A wet rotor-type pump, in particular used for pumping a coolant in vehicle motors, comprises a pump impeller for feeding a fluid and a motor rotor connected with the pump impeller. In wet rotor-type pumps the motor rotor is cooled by the fluid to be pumped.

Abstract: The present invention describes an imbalance compensation element featuring spring arms for fixing onto a shaft, and that grooves in which an anaerobic adhesive can distribute itself for fixing the imbalance compensation element on a motor shaft. One embodiment includes a pump with such an imbalance compensation element. In a method for balancing such electric pumps, the axial and radial oscillation accelerations as well as the oscillation angular position of a running pump are measured. In accordance with these measurements and the balance class and balance angle values ascertained therefrom, an imbalance compensation element is fixed on the shaft. Through this invention the time and cost required for balancing pumps driven by electric motors can be reduced and the acoustic emissions can be distinctly reduced when such a pump is installed on a housing.

Abstract: Exhaust gas feeding device for a internal combustion machine for introducing exhaust gas into a suction channel section of an intake manifold through at least one opening, having an exhaust gas feed section, an exhaust gas feedback valve and an exhaust gas introduction plate that forms a annular channel in the wall region of the suction channel section, wherein the exhaust gas introduction plate is designed as a stamped part with formable webs in such a manner that the webs define a ring channel annular channel with openings in the built-in state of the exhaust gas introduction plate.

Abstract: An adjustable two-way valve device is described that is embodied as a rotary valve. According to the invention the use of the rotary valve as a two-way valve is achieved by the skillful arrangement of passage openings of a valve plate with respect to control openings of a valve element. Thus it is possible to control mass or mixed flows independently of or dependent on one another with only one valve element. In particular a use in the field of exhaust gas recirculation with a bypass line and an exhaust gas cooler is advantageous, since mixed flows and thus temperatures can be run.

Abstract: A potentiometer device, for detecting valve positions, wherein a voltage signal Us is sendable to a control unit having an A/D converter, including a carrier element on which at least one slider track, having a slider element in contact therewith, is disposed; wherein the slider track switches between supply voltage Uv of the control unit and ground, and the slider element is connected with the control unit with a protection resistance over an output, wherein the control unit includes a resistance for detecting a cable disconnect, which is a pull-down resistance between voltage signal Us and ground, or a pull-up resistance between supply voltage Uv and voltage signal Us, wherein a resistance is provided at output, that is, in a first embodiment, a pull-up resistance between supply voltage Uv and voltage signal Us, and, in a second embodiment, a pull-down resistance between voltage signal Us and ground.

Abstract: The invention relates to a device for recognizing a shaft break of an actuated shaft made of plastic, in which a conductor is injected. This conductor extends essentially over the entire axial length of the shaft, whereby both its ends are connected to an electronics unit, so that upon a break of the shaft, and thus of the conductor, a current flow is interrupted and the conclusion can be drawn that the shaft has broken. According to the invention, the contacting of the conductor ends takes place via two electrically conductive rings arranged on the shaft, which rings in turn produce the contact to the electronics unit via carbon brushes arranged on sheet-metal springs.

Abstract: A pole ring suitable for d.c. motors is provided. The pole ring includes several retaining projections provided at the outer circumference for the secure retainment in a motor housing. The retaining projections have retaining surfaces pointing oppositely to the mounting direction. The retaining surfaces affix the vole ring in the soft material, such as aluminum diecasting or plastic, for example, of the motor housing.

Abstract: In a method for controlling a switching flap (10) arranged in an intake pipe connected with an internal-combustion engine the switching flap (10) is rotated with the aid of a switching-flap shaft (12) connected with an electromotor (18). With the aid of a position-detecting means (22,26; 24,26) an end position of the switching flap (10) is detected. Subsequently, a rotation force is continued to be applied to the shaft (12) to hold the switching flap (10) in the end position. For detecting a breakage of the switching-flap shaft (12), an error message is generated when the switching-flap shaft (12) continues to rotate beyond the end position.

Abstract: An exhaust gas recirculation system for a combustion engine is proposed that includes all important functions within a housing. For this purpose an exhaust gas recirculation valve, an exhaust gas cooling device with a heat exchanger unit, as well as a bypass channel with a bypass flap likewise embodied in the housing, form a unit. In addition, the exhaust gas recirculation valve in the area of its valve seat is cooled by the coolant of the exhaust gas cooling device. Thus a solution is proposed that, in comparison with known exhaust gas recirculation systems, greatly reduces construction space and weight, at the same time features low-cost assembly, and is also to be implemented very cost-effectively by the possibility of producing all housing parts in the die-casting method.