Abstract: A planar collector for an electric machine having radial commutator laminations arranged at an electrically insulating carrier. A plate (11) which can be soldered or welded and is divided into segments (11') with connections (17) is arranged on the electrically insulating carrier (10) and has a segmentation congruent to the commutator laminations (15), the commutator laminations (15) being soldered or welded on the plate (11).

Abstract: A unit for delivery of fuel from the fuel tank to the internal combustion engine of a motor vehicle includes a feed pump which is arranged in the fuel tank and constructed as a flow pump with substantially circular-cylindrical impeller driven in rotation in a correspondingly circular-cylindrical pump chamber. In at least one of the two chamber end walls, at least one approximately annular delivery duct which is groove-like in cross section extends from a suction opening which opens into the pump chamber to a pressure opening leading out of the latter. This end wall of the chamber is penetrated in the region of the pressure opening by a bore hole connecting the pump chamber with a region of the system in which low pressure prevails.

Abstract: An aggregate for supplying fuel from a supply tank to an internal combustion engine of a power vehicle has a housing with a cover, an electrical drive motor with a motor armature, a supply pump driven by the electric drive motor and formed as a gear pump. The supply pump has a toothed pinion and a toothed ring surrounding the toothed pinion and engaging with the latter. The toothed ring has a number of teeth which is greater than the number of teeth of the pinion and extends eccentrically to an axis of rotation of the motor armature while the pinion is arranged coaxially with the axis of rotation of the motor armature so that a local engagement between the teeth of the toothed ring and the pinion is obtained.

Abstract: A fuel supply assembly for feeding fuel to an internal combustion engine and comprising a gear pump that includes a ring gear having inner teeth, and a pinion arranged eccentrically with respect to said ring gear and having outer teeth meshing with the inner teeth of the ring gear and defining therewith expanding and contracting chambers during operation of the pump, the pump further including an outer support element for movably supporting the ring gear and including a supporting surface which engages a portion of the outer surface of the ring gear and is located radially outside of a discharge opening of the pump.

Abstract: In a peripheral fuel-conveying pump, in which the rotatable impeller, provided with a plurality of vanes spaced from each other by grooves, is enclosed with the housing of the pump so that a fuel-feeding passage is formed between the inner wall of the housing and the periphery of the impeller. The dimensions of the fuel-feeding passage are defined by the first geometric characteristic R.sub.m which is a ratio between S and L, wherein S is the cross-sectional area of the space enclosed between the housing wall, defining the feeding passage, and the periphery of the impeller, and L is the length of the periphery of the portion of the impeller inserted into the fuel-feeding passage. R.sub.m must be in the range of 0.4-2 mm. The dimensions of the fuel-feeding passage are also limited by the second geometric characteristic R.sub.s =B/E and the third geometric characteristic RA=B/E, which must be in the range of 0.5-1.

Abstract: A pivoting armature which functions as part of an electric control motor is rotatably supported on a shaft in a housing of the electric control motor and has a pole carrier on which pole shoes are mounted, the pole shoes being joined to the pole carrier in a rotationally fixed manner. The pole shoes can be produced by sintering or welding on a pole shoe ring that is pressed onto the pole carrier, or by stacks of laminates.

Abstract: In an aggregate for supplying fuel from a fuel container to an internal combustion engine of a motor vehicle, a housing of a pressure wave-damping device, connected to an outlet of the pump of the aggregate, has an enclosed interior subdivided into two separate chambers by a diaphragm. The first chamber is connected to the outlet of the pump and has its own outlet whereas the second chamber has a damping spring accommodated therein. The housing is formed of two opposite shell portions positioned opposite to each other. A ring-shaped flange is provided, which is a portion of the housing, and which holds the peripheral edge of the diaphragm and embraces the rims of the shell portions of the housing.

Abstract: In an aggregate for supplying fuel from a fuel container to an internal combustion engine of a motor vehicle, a housing of a pressure wave-damping device, connected to an outlet of the pump of the aggregate, has an enclosed interior subdivided into two separate chambers by a diaphragm. The first chamber is connected to the outlet of the pump and has its own outlet whereas the second chamber has a damping spring accommodated therein. The housing is formed of two opposite shell portions positioned opposite to each other. A ring-shaped flange is provided, which is a portion of the housing, and which holds the peripheral edge of the diaphragm and embraces the rims of the shell portions of the housing.

Abstract: An aggregate for feeding of fuel from a supply container to an internal combustion engine, particularly of a power vehicle, comprises means forming a feeding chamber, a feeding pump having a feeding member rotatable in the feeding chamber, an electric drive motor for the feeding pump and having a motor armature connected with the feeding member of the feeding pump, means forming a space which surrounds the motor armature and through which a fuel flows, a weak magnetic tubular part surrounding the motor armature and having an inner wall, at least one permanent magnet having a substantially ring-segment shaped cross-section and arranged on the inner wall of the part, and an intermediate wall separating the feeding chamber from the space, the intermediate wall having a tubular projection which surrounds the part and a pocket provided on the intermediate wall inside the tubular projection for receiving a portion of the permanent magnet.

Abstract: An arrangement for feeding fuel, advantageously from a supply tank to an internal combustion engine, particularly of a power vehicle has a feed aggregate through which a fuel flows, and a structural element arranged in a fuel flow and including a filter part and a fuel pressure wave damping member, wherein the structural element is arranged in a housing which surrounds the feed aggregate.

Abstract: A fluid supply pump such as a roller cell pump which includes a multiplicity of individual pumping bodies or rollers held in the grooves of a driven rotor in contact with an eccentrically disposed roller path which, in a certain angular range around the narrowest and widest gap, it is, at each location, virtually identical with a concentric circular path which is drawn around the rotor center point, the path preferably formed by two ellipse halves, for the elliptic shape can be virtually exactly approximated around the apex points of the ellipse by means of its primary circles of curvature to thereby improve the dynamic sequence of operations, for example to increase the sealing effect of the radial gap and to adapt the expansion and compression phases to the opening and closing conditions of the intake and pressure grooves.

Abstract: An electric control motor and a method of making the same are proposed for the driving of a control element. The electric control motor comprises a housing made from a ferromagnetic material, a housing enclosure and a cap, a shaft rotatably disposed therein on which an armature is disposed for association with arcuate poles provided in the housing. An electromagnetic coil comprising coil portions is mounted axially with respect to the armature in coil retainers encapsulating the armature and shaft as a unit for ease of assembly in the housing.

Abstract: A gas-filled damping element for damping pressure pulsations, especially in an internal chamber of a pumping unit for pumping liquid fuel from a fuel storage receptacle to an internal combustion engine includes a rigid support member of a substantially plate-shaped or cup-shaped configuration, and a diaphragm having a marginal portion which is sealingly secured to a border zone or rim of the support member. The surface area of the diaphragm is greater than the projected area of the support member. The enclosed space between the rigid support member and the diaphragm is filled with a gaseous medium. A support element or portion extends into the enclosed space between the diaphragm and the support member, this support element having an abutment surface of an area smaller than the projected area of the support member and facing the diaphragm. The abutment surface serves for supporting the diaphragm when the damping element is exposed to extremely high pressures.

Abstract: An arrangement for feeding a fuel particularly from a supply container to an internal combustion engine of a power vehicle, has a feeding pump with a feeding member rotatable about an axis, and a cylindrical pump chamber for the feeding member and having two chamber walls formed as separate members extending transverse to the axis and a tubular housing part retaining the chamber walls in a desired position wherein a further chamber wall surrounding the axis is formed by the tubular housing part.

Abstract: A fuel supply unit including a pump rotor and electromotor in which the elements forming the pump rotor are constructed from a non-friction creating or low wearing material.

Abstract: A device is proposed for controlling a flowthrough cross section in a controlled line, in particular in a line carrying operating medium in internal combustion engines, in order to exert influence on the idling rpm of the engine. The device includes an actuation member comprising an immersion-coil magnet system which engages an actuation shaft with which a first valve member and a second valve member are connected. The coaxial guidance of the actuation shaft in the valve housing is effected by means of two guide diaphragms held in place relative to one another by attachment to the housing on their circumference. The valve members are identical in shape and each cooperates with a valve seat provided in a valve plate in the identical direction. The air flow may be effected via inlet apertures provided in the tubular section of the valve housing exhausting via the opened valve seats to outlet apertures in the cap.

Abstract: An aggregate for supplying a fuel from a supply container to an internal combustion engine has a driven shaft with an axis, a pump chamber with a wall transverse to the axis of the shaft, an impeller driven by the shaft in the pump chamber, and supporting formations for supporting the impeller and having a central recess in the impeller and a bearing projection on the wall of the pump chamber and extending into the recess of the impeller.

Abstract: A device for the control of at least one throttle diameter in a control line, especially in a line carrying fuel for an internal combustion engine, is proposed. The device includes at least one circle segment-like control section in a control bore intersecting the control line, the section pivotable around an axle and opening to a larger or lesser degree the throttle diameter formed by the intersection. The control bore has a circularly arched sealing surface surrounding the throttle diameter extending eccentrically to the axle and with which the control section, also disposed eccentrically to the axle and disposed pivotably, works together in such a way, that the radial distance between the circumference of the control section and the sealing surface is nearly zero when the control section is in a closed position, and increases during a pivotal movement in the direction of opening the throttle diameter.

Abstract: A fuel supply unit is proposed, in particular an assembly comprising a pumping element and an electromotor to drive it housed together in a common housing, which is secured in an upright position in the interior of a fuel container in such a manner that the pumping element is disposed near the bottom of the fuel container to enable aspiration of fuel from the fuel container until it is as nearly empty as possible. The pumping element has a first intake area oriented toward the bottom of the fuel container and a second intake area remote from the bottom of the fuel container, the second intake area being closable by a closure member movably disposed on the fuel supply unit whenever the fuel level in the fuel container drops below a predetermined level, so that fuel is then aspirated only via the first intake area. The closure member is actuatable by means of a floater body.

Abstract: An adjusting device is proposed for controlling flowthrough cross sections of a line carrying operating medium in internal combustion engines. The throttle device which varies the flowthrough cross section is disposed, together with the electromechanical actuating member thereof, within a tubular housing and surrounded by an annular chamber. The dispensed operating medium flows from one connecting pipe to the other connecting pipe of the adjusting device through the annular chamber. In this manner, an adjusting device is created which can be built into hose-type lines in a linear fashion; the electromechanical actuating member, for instance an adjusting magnet, is necessarily cooled by the surrounding flow of the operating medium to be dispensed. Furthermore, a body having the form of a helical spring serves as a throttle device of the adjusting device. When it is compressed, this body, together with a flexible element, interrupts the communication between the annular chamber and the adjacent line.