Abstract: The invention relates to a fuel delivery unit, having a side channel pump that in a housing (13) has a pump chamber (14) and in the pump chamber (14) has an impeller (16), and having an electric motor (12) that drives the impeller (16) and has a stator and a rotor (29). The impeller (16) of the fuel delivery unit is the rotor (29) of an asynchronous motor. The electric motor (12) can be assembled from only a few, highly reliable and strong components.

Abstract: The invention relates to an apparatus for direct gasoline injection in a piston engine, which has a hydraulic valve control system with hydraulically actuated gas exchange valves. The invention proposes binding the direct gasoline injection to the hydraulic valve control system via a pressure booster for two different pressure media, which is acted upon by hydraulic oil from a high-pressure hydraulic oil reservoir of the hydraulic valve control system and which subjects a high-pressure fuel reservoir to high pressure; injection valves for direct gasoline injection in the piston engine are connected to the high-pressure fuel reservoir.

Abstract: The invention relates to a side-channel pump having an intake cover (10), which is used in pumping fuel in a motor vehicle. The intake cover (10) has a side channel (11), extending radially about a pivot point (14) in the intake cover (10), a first opening (13) for an intake channel (27) of the side channel (11) and a constant side channel width (BSK) in a portion extending circumferentially. The side channel (11) has a side channel width (BSK) in the top side (8) that is constant, as seen from a beginning (12) of the side channel (11), already at a value of a first angle (&phgr;) of between 0 and preferably approximately 5 and at most 20 , referred to a line (LB) through the pivot axis (14) and through a contact point (1) at the beginning (12). This makes for better hot-gasoline performance, increased efficiency, and a higher pressure ratio of the side-channel pump. The intake cover is suitable in particular for a dual-flow side-channel pump.

Abstract: A delivery unit for motor fuel includes a side channel pump and an electric motor that drives the side channel pump. The electric motor has an armature winding, a permanent magnet (37), and a rotor (29). The rotor (29) and the impeller (16) of the side channel pump are a single component, and the permanent magnet (37) is inserted with positive engagement into a circumference (35) of this component. This allows the production of an especially low-height, low-leakage side channel pump.

Abstract: The motor fuel delivery unit for delivering motor fuel includes a delivery pump (11) and an electric motor (12) for driving the delivery pump (11). The delivery pump (11) includes a housing (13) provided with a pump chamber (14) and an impeller wheel (16) arranged in the pump chamber (14). The electric motor (12) includes a stator (28) provided with an armature winding (32) and a rotor (29) provided with permanent magnets (30). The electric motor (12) is brushless and consists of the impeller wheel (16) of the delivery pump (11). The stator (28) has an inner ring face consisting of a peripheral wall (143) of the pump chamber (14).

Abstract: A multi-stage side-channel pump (1) in particular for fuel for a motor vehicle, having at least first blade chambers (16) of a precursor stage (7) and second blade chambers (17) of a main stage (10). The side-channel pump (1) has an electric motor (19) for driving an impeller (13). The electric motor (19) has a rotor (22) and a stator (24). The first blade chambers (16) of the precursor stage (7) and the second blade chambers 17 of the main stage (10) are integrated with the impeller (13). The impeller (13) can also form the rotor (22), making it possible to produce an extremely shallow side-channel pump (1). This pump is employed preferably for fuel delivery in gasoline injection to an internal combustion engine.

Abstract: The unit has a conveying pump embodied as a flow pump (10) with an impeller wheel (12) rotating in a pump chamber (24) and having respectively a crown of vanes (32) on both of its front faces which, together with grooves (38, 24) in the shape of a partial circle arranged in the front walls (26, 28) delimiting the pump chamber (24), respectively constitute a lateral conveying channel (44). The vanes (50) of the impeller wheel (12) are connected by an outer ring (36) on their radially outer ends. The outer ring (36) of the impeller wheel (12) also has a crown of vanes (50) which, together with the grooves in the shape of a partial circle arranged in the front walls (26, 28), respectively constitute an outer flow channel (58).

Abstract: A feed unit for fuel, has a pump chamber (14) and an impeller (16) disposed in the pump chamber, an electric motor (12) driving the impeller (16), the electric motor (13) with a rotor formed as the impeller (16) of the feed pump (11), in order to achieve an extremely flat design in the axial direction.

Abstract: A method for the quantitative acquisition of flow patterns in fluid flows in which a medium (e.g., a gas or a liquid) and the particles contained therein and carried in the flow are set in motion in a transparent flow object. The method provides that a flow object is transilluminated by a laser light fanned out on a plane parallel to the longitudinal axis of the flow object. A scattering of the laser light by the particles is detected by a camera positioned at a right angle to the longitudinal channel axis and moving in the vertical and horizontal directions, and can be analyzed with an analysis unit connected downstream from the camera. The analysis unit is calibrated by quantitatively comparing an image, which has an object-to-image ratio and which is recorded inside the flow object by the camera, to an image having an object-to-image ratio and recorded outside the flow object.

Abstract: A housing pan for receiving a fluid delivery pump for a delivery aggregate for delivering fuel from a fuel tank has a pan body, a unit forming a supply opening for flowing fluid and open into an interior of the pan body, a pan bottom, a unit forming a part-ring shaped flow passage located concentrically into an axis of a pan body in an interior of the pan body at an axial distance from the pan body, the flow passage having a passage entry which communicates with the supply opening and also having a passage wall which is located inwardly in a radial direction and is provided with a plurality of throughgoing slots, the throughgoing slots being spaced from one another over a length of the flow passage and extending in a longitudinal direction of the flow passage, the throughgoing slots having lower slot edges located closer to the pan bottom and arranged at least near a passage bottom.

Abstract: In connection with a flow pump, particularly for the conveying of fuel from a fuel tank of a motor vehicle, with a pump chamber embodied in a pump housing which is bordered by two radially extending lateral walls (12), spaced apart from each other, and a peripheral wall, connecting the lateral walls (12) along their periphery with each other, with at least one groove like lateral channel (20) disposed in one of the lateral walls (12), open toward the pump chamber, which extends, related to the flow direction in the lateral channel (200, concentrically in relation to the pump axis (22), with an interrupting strip (35), remaining between a lateral channel end (202) and a lateral channel start (201), and having a rotating impeller wheel disposed in the pump chamber, a damping groove (36), open in the direction toward the pump chamber, has been cut into the interrupting strip (35) near the lateral channel end (202), which approximately extends over the width of the lateral channel, for reducing the locally very h

Abstract: The aggregate has a feed pump formed as a flow pump (10) comprising an impeller (12) rotating in a pump chamber (24) which has a peripheral rim of vanes (32) on respective opposite sides of the impeller which together with opposing side walls (26,28) bounding the pump chamber (24) form respective lateral feed ducts (44). The vanes (32) of the impeller (12) are connected with each other by an outer ring (36) at their outer radial ends. The outer ring (36) of the impeller (12) similarly has respective additional rims of additional vanes (101) on opposite sides thereof. Both additional vane rims are separated from each other by an annular separating member (102) placed between them in an axial direction. The additional vanes (101) are arranged in succession with equal spacing (e) in a rotation direction around the impeller and are shaped to optimize fluid flow.

Abstract: The flow pump for supplying a fuel in a motor vehicle includes a pump housing (10) provided with a pump chamber (11) bounded by two radially-extending side walls (12,13) axially spaced from each other and connected with each other by a peripheral wall (14) and a rotatable impeller (24) arranged in the pump chamber (11) coaxial to a pump axis (22). The impeller (24) includes circumferentially spaced radial impeller blades (29) bounding axially open impeller chambers (31) and an outer ring (30) connecting the impeller blades (29) with each other. The two radially-extending side walls (12,13) are provided with respective groove-like side channels (20,21) concentric to the pump axis (22) and open to the pump chamber (11). Each radially-extending side wall (12,13) has an intervening portion (23) between a channel end (212) and a channel beginning (211).

Abstract: A method and device for sensing three-dimensional flow structures, which is distinguished in that at least two, preferably three light sheets of a different wavelength or light intensity are produced in a flow measuring field. When a particle carried along by the flow traverses the light sheet, scattered light produced by the particle is optically detected as a particle trace, separately for each light sheet. The detected particle traces of the light sheets are combined into one particle path, and on the basis of the composite particle path, the three velocity components of the flow are calculated.

Abstract: The flow pump has an impeller (22), revolving in a pump chamber, which on each of its two axially oriented face ends (28, 29), has one ring of vanes (30) between which interstices (31) are located, and which cooperates with a feed channel (34) associated with the vanes (30) for pumping the fuel. When viewed in the radial direction relative to the rotary axis (24) of the impeller (22), the vanes (30) are positioned obliquely with respect to the rotary axis (24) in such a way that they lead ahead in the circumferential direction (21) of the impeller (22) toward the face end (28, 29) of the impeller (22). The vanes (30) and the rotary axis (24) of the impeller (22) form an angle (.alpha.) of between 25.degree. and 70.degree. that is oriented in the circumferential direction (21) of the impeller (22).

Abstract: The fluid pump has a pump impeller provided with vanes and driven to revolve in a pump chamber that is defined by one wall portion each in the direction of the rotary axis of the pump impeller. In both wall portions, toward the pump impeller, there is an annular supply conduit and an outlet opening that discharges into one supply conduit. The outlet opening is defined in the rotational direction of the pump impeller by a wall which comes to an end in the form of an edge of the end face of the wall portion. The edge has an inner portion, which is inclined in the rotational direction relative to the rotary axis with respect to an imaginary radial arrangement. The inner edge portion is adjoined by an outer edge portion, which relative to an imaginary rectilinear lengthening of the inner edge portion extends farther in the rotational direction. As a result of this embodiment, an improved outflow from the supply conduit through the outlet opening has been obtained.

Abstract: An assembly for feeding fuel from a supply tank to an internal combustion engine, with a fuel feed pump which is driven in rotation by an electric drive motor arranged together with the feed pump in a common housing. For the pump-side axial mounting of the rotor of the drive motor, there is provided, between the rotor and an intermediate housing of the feed pump, a hydrodynamic bearing which is formed by recesses in the end faces of the rotor and/or intermediate housing, these end faces being located opposite and essentially parallel to one another so as to form an annular gap.

Abstract: In a liquid pump of the side channel type, particularly an electric fuel pump, comprising a suction cover (11) having an inlet aperture (12), an intermediate casing (13) having an outlet aperture (14), and a pump impeller (15) enclosed therebetween, and also comprising concentric side channels (21, 22) which are formed in mutually oppositely situated surfaces (111, 131) of the suction cover (11) and intermediate casing (13) and into which lead an inlet opening (12) and an outlet opening (14) respectively, the geometry of the outlet opening (14) is selected, for the purpose of reducing noise and achieving greater smoothness of running, such that its aperture wall (141) bounding the end of the side channel (22) in the intermediate casing (13) extends outward with a concave curvature, at least in the side channel region, from the inner surface (131) of the intermediate casing (13) onward, and that on the other hand the geometry of the end of the side channel in the suction cover (11) has a configuration such tha

Abstract: The peripheral pump has a rotatable impeller including a central hub portion, an outer peripheral closed ring and impeller blades connecting the outer peripheral closed ring and the central hub portion to form intervening spaces between the blades; and a pump chamber having opposing chamber walls facing the impeller in the pump chamber, which are provided with ring-shaped ducts spaced radially from the impeller rotation axis to a same extent as the impeller blades and extending radially only to a radial extent equal to that of the impeller blades. The front side of each blade facing in the impeller rotation direction has a planar front surface extending from the central hub portion to the outer peripheral ring and a rear side of each blade has two blade edge surfaces inclined relative to respective opposing chamber walls and pointing to the respective chamber walls in the rotation direction of the impeller, at least in an edge region of the blade, to prevent turbulent flow in the intervening spaces.