Abstract: A valve arrangement for regulating the idling speed of internal combustion engines by controlling the quantity of air on the intake side of an intake manifold 1 leading to the internal combustion engine. The valve arrangement has an electromechanical control member which has a solenoid 7 by which a closure member 4 can be moved, via a control element, in opposition to the force of a return spring 8. The closure member 4 is movable relative to the control element between a position of rest and an operating position and, in the position of rest, is in a well-defined partially open position of the valve passage.

Abstract: In a fuel-injection valve, a holding member which bears a plug as atomizing and metering element is inserted in a valve bore. A replaceable diaphragm makes it possible to adjust the precise discharge quantity of the fuel-injection valve by replacement of said diaphragm.

Abstract: In a method for producing a pulsed setting voltage (v). said voltage is pulse-duration modulated with an electric control variable. The setting voltage serves to act on a setting drive having an inductance, particularly an electric motor setting drive (9) of a throttle valve (11) of an internal combustion engine. In order to obtain at the same time good periodic excitation of the setting drive as well as a low electric loss power in the setting drive, the setting voltage which is pulsed with a high clock frequency (f.sub.0) is pulse-duration modulated with a low fundamental-modulation frequency (f.sub.m) as well as a control variable.

Abstract: A valve arrangement for regulating the idling speed of internal combustion engines by controlling the quantity of air on the intake side of an intake manifold 1 leading to the internal combustion engine. The valve arrangement has an electromechanical control member which has a solenoid 7 by which a closure member 4 can be moved, via a control element, in opposition to the force of a return spring 8. The closure member 4 is movable relative to the control element between a position of rest and an operating position and, in the position of rest, is in a well-defined partially open position of the valve passage.

Abstract: A voltage supply for a servomotor (9) is effected via a wiper (10) which slides on two conductive paths (5, 6) which are displaceable in longitudinal direction. The conductive paths (5, 6) have, at their opposite ends, a driver (15, 17) against which the wiper (10) can come in its end positions upon further displacement, in order to be able to carry the corresponding conductive path (5, 6) along with it. Directly before the driver (15, 17) is reached, no voltage is tapped off from the corresponding conductive path (5, 6), so that the servomotor (9) then stops.

Abstract: An improvement is disclosed for a valve arrangement for adjusting the idling speed of an engine of the type having an intake manifold and a throttle valve in the manifold. In this arrangement there is a bypass of the throttle valve, and an electromechanical setting element and a solenoid connected to a closure member for the bypass via a setting member. A return spring biases the setting member in a closing direction and the solenoid can urge the setting member in an opening direction against the force of the return spring. The closure member is urged in the opening direction by pressure on the admission side of the manifold. This admission side is connected to a chamber having a moveable wall connected to the closure member. In accordance with the improvement the chamber is connected to the intake side of the manifold by a connection which includes a valve which is adapted to close the connection during a control process.

Abstract: A throttle valve 4 is pivotally mounted about a shaft 3 within a connection-piece housing of a throttle-valve connection piece. In order to reduce the air leakage rate, means are provided for eddying the leakage air which, when the throttle valve is closed, passes between it and the wall of the bore of the connection-piece housing. The connection-piece housing preferably has two bores which open into each other forming a crescent-shaped step, against which the throttle valve rests in the closed position and a reduction in cross section on one side in the bore of the connection-piece housing is provided by an arcuate transition to the bore of smaller diameter and the crescent-shaped step is located on the opposite side.

Abstract: In a device for regulating the idling speed of an internal combustion engine by controlling the feed, having an electromechanical setting member, there are provided an electric drive member (core 1, coil 2) and at least one magnetic flux-conducting element (push rod 3) between the drive member and a valve element (impact plate 8) and at least one return spring (6) which acts on the drive member. In order to avoid, as far as possible, any rebound of the sealing member, a prestressed decoupling spring 7 is arranged between the magnetic flux conducting element (push rod 3) and the valve element (impact plate 8) and an opposing spring (9) acts directly on the valve element (impact plate 8).

Abstract: A valve arrangement for regulating the idling speed of internal combustion engines by control of the quantity of air on the intake side of an intake manifold 1 leading to the combustion engine. It has an electromagnetic control member which has a solenoid 7 by which a closure member 4 is movable, via a control element, against the force of a return spring 8. A valve 11 which can be opened in the closed position of the closure member 4 is arranged within a connection 10 of given cross section from the inlet side to the outlet side of the closure member 4.

Abstract: A device for the transmission by electrical transmission means 2 of the set-point between an idling position and a full-gas position of an electrical set-point adjuster 1 which is displaceable by the driver of a vehicle by means of a regulating unit, and controls the speed of travel of the vehicle by a control element 4 which is displaceable in corresponding manner between an idling position and a full-gas position. The control element is coupled to a control member 6 which controls the fuel-air mixture of an internal-combustion engine. Between the set-point adjuster 1 and the control element 4 there is arranged a mechanical transmission element 7 which can be coupled with the set-point adjuster 1 and the control element 4 and by which the position of the set-point adjuster 1 can be transmitted to the control element 6.

Abstract: A position indicator which can be coupled to a gas pedal has a housing with a substantially cylindrical hollow inner space. A rotary resistor is arranged fixed against turning in a mount which can be fastened to the housing. A setting shaft for the rotary resistor is connected with a drive shaft of the position indicator so as to be actuated by a turning movement of the drive shaft. The drive shaft and the setting shaft are turned back by at least one restoring spring when the gas pedal is released. A member connected with the drive shaft serves to accommodate the restoring springs and for the arrangement or development of an actuating member for a kick-down switch.

Abstract: The invention relates to an arrangement for increasing the idling speed of an internal combustion engine, particularly a diesel internal-combustion engine. It has a setting member for controlling the feed of the fuel, the displacement path of said member being adapted to be limited in the direction towards idle by an idle stop and after a starting process, by a start-quantity stop. In order that such an arrangement be of simple construction and be capable of being manufactured inexpensively, the displacement path can be limited by a plurality of start-quantity stops arranged one behind the other in the idling direction, of which, commencing with the starting process, at given time intervals one after the other, the start-quantity stop furthest from the idle stop can be moved out of the path of displacement of the setting member.

Abstract: A fuel consumption indicator for a vehicle includes an indication manometer having a tube spring connected with engine vacuum and connected to drive a pointer via an electromagnetic control having a variable lever arrangement positionable in dependence upon the gear selected for the vehicle.

Abstract: An electric regulating device, particularly for a speed control device for motor vehicles, with a servomotor and a rotatably mounted element which actuates the regulating member, the rotatable element particularly being a cable pulley which stands in operative connection with the servomotor via a gearing and a coupling device containing an electromagnet. At least one of the gears of the gearing is radially and at an angle indirectly or moveably mounted, and is connected indirectly or directly with an armature, which in turn cooperates with the electromagnet. The gearing includes a gearwheel operatively coordinated to the at least one gear. A spring biases the armature with a spring force for moving the one gear out of engagement with the gearwheel when the electromagnet is without current. The spring cooperates with means for reducing the pretension of the spring in the neutral position of the regulating device.