Abstract: A positioning unit and a method for forming an electrically conductive connection between an electrically driven vehicle, and a stationary charging station using a positioning unit, in which the positioning unit is configured to be disposed on a vehicle roof, a contact device of the positioning unit being configured to be moved relative to a charging contact device of the charging station and to make electrical contact therewith in a contact position, the positioning unit having an articulated arm device for positioning the contact device and a drive device for driving the articulated arm device, the articulated arm device having a pivoting device with a pivoting arm, the pivoting device being configured to pivot the contact device from a storage situation into a contact situation and vice versa. The positioning unit comprises a securing device configured to secure the pivoting arm in the storage situation in a form-fitting manner.

Abstract: A positioning unit for electrically driven vehicles and a method for forming an electrically conductive connection between an electrically driven vehicle and a stationary charging station having a positioning unit configured to be disposed on a vehicle roof. The positioning unit includes a contact device that is moveable relative to a charging contact device of the charging station and is electrically connectable to the charging contact device in a contact position, and an articulated arm device for positioning the contact device and a drive device for driving the articulated arm device. The articulated arm device includes for pivoting the contact device from a storing state to a vertical contact state and vice versa, and a second pivot arm for pivoting the contact device from the retracted position to the contact position and vice versa. The first pivot arm is disposed to be pivotable on a distal end of the second pivot arm.

Abstract: A contact unit for a charging station of an electrically driven vehicle and a related method. The contact unit includes at least two charging contact supports having at least two charging contacts thereon and connected by a parallel linkage having connecting and support rods disposed in parallel, each support rod being connected to the connecting rods in one of two parallel movement planes via connecting hinges forming a parallelogram with the connecting rods, the connecting rods connected to a base support by support hinges spaced apart in a support plane extending in parallel and centrically to the movement planes, each charging contact support being connected to the support rod via a rotary hinge, the rotary hinges being orthogonally disposed with respect to the connecting hinges, each charging contact support mounting the charging contacts coaxially with respect to the axis of rotation.

Abstract: A contact unit for a charging station of an electrically driven vehicle and a related method. The contact unit includes at least two charging contact supports having at least two charging contacts thereon and connected by a parallel linkage having connecting and support rods disposed in parallel, each support rod being connected to the connecting rods in one of two parallel movement planes via connecting hinges forming a parallelogram with the connecting rods, the connecting rods connected to a base support by support hinges spaced apart in a support plane extending in parallel and centrically to the movement planes, each charging contact support being connected to the support rod via a rotary hinge, the rotary hinges being orthogonally disposed with respect to the connecting hinges, each charging contact support mounting the charging contacts coaxially with respect to the axis of rotation.

Abstract: A device for damping the intake noise in internal combustion engines employs the air intake path (1,5,6) of the diesel engine within which path there is arranged a convergent-divergent nozzle (4) wherein cross section of passage is adjustable by means of a throttle member (3) which can be displaced as a function of a loading of the engine.

Abstract: An electronic injection system for Otto engines with injection nozzle (4) has a displaceable throttle body disposed in the intake air flow (2), and includes intake air mass measurement. In order to assure optimal measurement and dosaging of the mass flow of air at minimum structural expense and within a minimum space, particularly in the case of rapidly varying engine loads and speeds of rotation, the injection system has a convergent/divergent nozzle (12) with narrowest cross section adjustable by the nozzle body. The system includes a position indicator (18) for the throttle body, measurement devices for the pressure p.sub.O in front of the nozzle, and the pressure p.sub.L at the narrowest point of the nozzle and the air temperature T.sub.O in front of the nozzle. Also included is an electronic controller device (19) operative with at least the input variables p.sub.O, p.sub.L, T.sub.O and position (x) of the throttle body to provide an output variable opening time t.sub.O of the injection nozzle.

Abstract: A system with which a correction of the fuel composition upon a change in the state of load of an internal combustion engine with which a mixture-forming device (4, 6, 8, 9, 11) is associated is constructed in structurally simple manner. The mixture-forming device has a feed unit (6) for the fuel with an inlet-side fuel conveyor line (5) and a discharge-side fuel conveyor line (7) and a movably mounted feed member (18). Depending on the position of the feed member (18), the feed member (18) provides variable fuel passage cross-sections in the feed unit (6). The feed unit is connected via an opening (31) which is closed in sealing fashion by a movable equalization element (33), the equalization space (32) being connected via a branch line (34) to the discharge-side fuel conveyor line.

Abstract: A method for improving the exhaust-gas behavior of mixture-compressing internal combustion engines. The output signal of an oxygen measurement probe arranged in the exhaust gas channel of the internal combustion engine is divided within the voltage region in question into a number of sections and a corrected voltage value is stored in a memory for each section.

Abstract: The present invention proposes a fuel-air mixture-forming device for internal combustion engines, having a rotationally symmetric nozzle body (2) which, together with a rotationally symmetric throttle body (8) displaceable in it, forms a convergent-divergent nozzle which discharges into a radial diffusor (6). In the vicinity of the narrowest cross section (5) of the nozzle there is provided a fuel slot (11) extending around it and discharging into it, at least one fuel feed line (9, 10) discharging into the fuel slot. The radial diffusor is formed by a region of the nozzle body which is curved outward in the direction of flow of the mixture and by a wall (15) of a structural member (17) which forms a structural unit (18) with an intake manifold (7) of the internal combustion engine, the wall (15) lying opposite the nozzle body and being rotationally symmetric to the longitudinal axis (1) of the throttle member and having a bulge (16) pointing toward the throttle member.

Abstract: In a fuel/air mixture preparation device for internal combustion engines, there is a nozzle body (2) of rotational symmetry having a throttle member (7) of rotational symmetry which is displaceable within the body, the body forming a convergent/divergent nozzle. With the throttle member (7), which is displaceable in the nozzle body, the main air-mass throughput through the nozzle is determined. At least one fuel feed line (8 and 9) enters into the nozzle body. The fuel feed line has a circumferential fuel slot (10) which is developed in the wall of the nozzle body as well as a circumferential fuel/air slot (12) which joins it and is open towards the inside in the nozzle body. At a transition place between the fuel slot and the fuel/air slot there debouches an air feed (13) which is approximately under ambient air pressure. From a gap opening (11) of the fuel/air slot, the fuel mixed with air is injected approximately transversely to the direction of the main air mass flow, into the inside of the nozzle body.