Abstract: A method of controlling reaping level comprising the steps of averaging the lengths measured by a noncontact distance sensor, comparing the preset target data with the measured and averaged data, computing the difference therebetween and raising or lowering a reaping section in accordance with the amount of the difference. When averaging the measured data, abnormal data which cause erroneous functions may be omitted prior to averaging.

Abstract: An anti-skid brake system and anti-drive-slip system having a master cylinder, at least one inherently safe closed brake circuit which includes anti-skid valves and wheel brakes, a booster cylinder associated with the master cylinder and in which a booster piston is displaceable, a pressure supply apparatus, a valve connected thereto, which is actuatable by means of a brake pedal for controlling brake pressures. A locking piston cylinder connected to the control valve, a sensing piston, which is coupled to the brake pedal and which passes into the locking piston cylinder, and a change-over valve assembly. This change-over valve assembly is embodied such that for normal braking operation, it connects the booster cylinder with the control valve. If there is a danger of skidding, or wheel lock, this change-over valve assembly disconnects the booster cylinder from the control valve and connects it to a return line in order to relieve pressure and reduce the braking pressure.

Abstract: A fuel injection pump has a stepped piston operatively disposed in a stepped bore so as to define a first pump work chamber and a second pump work chamber. A constant fuel injection quantity (h.sub.FE) is pumped to the second work chamber per pump piston stroke, and a variable fuel injection quantity is pumped out of the first pump work chamber to a common distributor groove which actuates delivery of the fuel to individual injection lines.

Abstract: An electromagnetically actuatable valve is proposed, which serves in particular to inject fuel into the intake tube of internal combustion engines operating with fuel injection systems. The fuel injection valve includes a valve housing, a core, a magnetic coil and a cylindrical armature which is connected via a rod-like connecting part having a smaller cross section than the armature with a valve closing member embodied in the form of a ball. The valve closing member cooperates with a valve seat provided in a valve seat body. The radial guidance of the armature is effected by a narrow annular disk. The valve closing member is radially guided only by the valve seat in its closed position and by a stop in its open position. Downstream of the valve seat fuel guide bores lead into a preparation bore in the form of a blind bore, which has a diameter of approximately 1 mm.

Abstract: A fuel injection nozzle for internal combustion engines which has a valve needle loaded in the closing direction and is radially guided and supported in an axially displaceable manner within a nozzle body. The movement of the valve needle is effected in the opening and closing directions in a selectively variable manner, a spring-loaded supplementary mass which performs a dual function being disposed in the nozzle interior. In the opening direction of the valve needle, the supplementary mass is displaced along with the valve needle, while in the closing direction the two elements are separated. The supplementary mass influences the movement of the valve needle both inertially, as the result of its mass, and by effecting a speed-dependent damping, as the result of the positive displacement of a fluid from damping chambers, the whole being adapted to a constant or variable throttle disposed in the fuel inlet conduit.

Abstract: A fuel injection pump for internal combustion engines is proposed, which is realized as a radial piston pump. To supply eight-cylinder engines or multi-cylinder engines at high rpm or to realize a pre-injection with large angular intervals, a radial piston pump is proposed the pump pistons of which are firmly connected to the roller shoes driving the pump pistons, and the rollers carried by the roller shoes roll off simultaneously on a first cam track of a first, outer roller ring and on cam tracks of second, inner roller rings and are thereby compulsorily guided between the cam tracks of the two roller rings.

Abstract: There is disclosed a control apparatus for a vehicle comprising a tiltable steering wheel. The control apparatus includes a hand lever tiltable in unison with the steering wheel and substantially on the same axis on which the steering wheel tilts. Operability of the hand lever is unaffected by tilted positions of the steering wheel and hand lever.

Abstract: A brake system having a master cylinder for generating brake pressures in at least one closed brake circuit (I, II) and having an associated brake booster including a booster cylinder, a displaceable booster piston having a piston rod oriented into the master cylinder and a tappet arranged to plunge into the booster cylinder by means of a brake pedal and be displaced counter to the booster piston and is equipped with a brake valve connected to a pressure supply device, which brake valve is controllable by means of the relative movement of the tappet with respect to the booster piston. The brake system may be modified to become an anti-drive-slip apparatus via brake pressure maintenance valves built into the brake circuits (I, II), as well as a 3/3-way valve, by means of which pressure medium can be sent directly from the pressure supply device for exerting boosting action on the booster piston into the booster cylinder.

Abstract: A fuel supply line for use with fuel injection devices of internal combustion engines is proposed, having supports to contain fuel injection valves. The fuel supply line has an elastic wall section, with which is connected a rigid wall section and on which are fastened the supports. The elastic wall section is elastic to the extent that it damps the pressure pulsations of the fuel in the fuel supply line, whereas the rigid wall section assures the required rigidity of the fuel supply line.

Abstract: A fuel injection system for internal combustion engines with multiple fuel injection valves. The fuel injection system includes a dimensionally stable fuel manifold distributor with nipple plug connections, by means of which the fuel is directed to the individual injection valves. The fuel manifold distributor is disposed over the injection valves and is pitched with respect to the horizontal, with a fuel injection connection located at the lowest point of said manifold and connected to the pressure side of a fuel pump, with a return line connection provided at the highest point of the fuel manifold distributor leading to a return flow line, over which a portion of the fuel may be redirected to a pressure regulator and from there to the suction side of a fuel tank to which the fuel pump is connected.

Abstract: An electromagnet which serves particularly to control a fuel injection valve for fuel injection systems in internal combustion engines. The electromagnet includes an inner core of soft-magnetic material, which is surrounded by a magnetic coil. An outer core at least partly surrounds the magnetic coil and has an outer pole located in the same plane as an inner pole of the inner core. On one side of the magnetic coil, between the inner core and the outer core, there is a first annularly embodied and radially magnetized permanent magnet, and on the other side of the magnetic coil there is a second annularly embodied and radially magnetized permanent magnet. Facing the poles, there is an armature, which at one end is joined to a valve needle that has a valve body cooperating with a valve seat, and on its other end forms a first working air gap with the outer pole and a second working air gap with the inner pole.

Abstract: A brake valve for feeding selectably different levels of fluid pressure into at least one pressure receiver, which is a component of a vehicle brake system. The brake valve includes a first, normally open valve having a ball and a second valve, which is normally closed by a closing spring and which likewise has a ball. The latter ball is pressed by pressure provided by a pressure supply apparatus against a ball seat. A compensation piston acted upon by this pressure is also provided, which presses against the ball in the opening direction of the second valve. Because of the compensation piston, the second valve is easily opened, so that brake pressure can be sensitively controlled.

Abstract: A brake system having a master cylinder including main pistons, a brake booster for displacing the main pistons a brake valve for controlling the brake booster and a pressure supply device. The brake booster has a booster cylinder and a booster piston which is displaceable into the booster cylinder. The booster piston divides a booster chamber from an auxiliary chamber, which is located between the booster piston and the master cylinder. A first valve assembly and a second valve assembly are provided. The second valve assembly is located between the pressure supply device and the brake valve as well as a connection associated with the booster chamber. The first valve assembly is intended for relieving pressure in the booster chamber in favor of a return line or to join it with the pressure supply device. In the anti-skid mode, pressure in the booster chamber is initially reduced by means of the second valve assembly.

Abstract: This invention relates to a foldable seat cushion having at least one blank for use in the seat basket of a shopping cart. The device is constructed so that the back portion of the seat cushion can be adjusted for the width of the seat basket and affixed in position thereupon, while the front portion of the seat cushion may be rolled about the handle of the shopping cart and secured with an adjustable fastener. The invention includes a pair of apertures provided for legs of the child through the seat cushion, a seat belt for retention of the infant therein and accessory tethering straps for the application of toys or like objects for the entertainment of the child while seated upon the seat cushion.

Abstract: An apparatus for controlling the spring firmness of a road vehicle is proposed, which is combined with a control of the shock absorber firmness. Both controls are preformed using a single control valve. Trigger signals for the control valve are ascertained by an electronic device, which receives its signals from sensors, disposed on the vehicle, for spring travel, acceleration, vehicle speed and steering angle or the like, and in particular for a travel sensor which picks up the shock absorber compression and emits it as a signal to the electronic device, whereby changes in spring stiffness are achieved.

Abstract: A method and a multi-circuit brake booster for feeding back disruptions of any arbitrary kind, even of an associated anti-skid brake system, to a then-changed brake pedal characteristic, the influence on the brake valve triggering being effected via a travel simulator device. The transmitting member in the travel simulator device is a travel simulator spring enabling a predetermined idle pedal travel, and this spring responds whenever, in response to an arbitrarily generated disruption signal, a lockable storage element assumes its other position and mechanically engages a transmitting member in the chain from brake pedal actuation to brake valve slide actuation in an arresting manner. Upon reaching a predetermined amount of biasing, as a result of the further compression of the travel simulator spring, the opening of the brake valve then takes place abruptly, with a corresponding increase in brake pressure and a corresponding increase in vehicle deceleration.

Abstract: An adjusting device for adjusting a stop lever coupled with a control device of an internal combustion engine. The adjusting device includes a housing having an electric motor which via a worm gear rotates a gear wheel. An internal thread is provided in an inner bore of the gear wheel and is engaged by the external thread of a spindle. The spindle is joined to an actuating sleeve and on one end has struts extending in the axial direction, which protrude into guide grooves of a short tubular portion of the bottom part of the housing and are displaceable therein in order to secure the spindle against rotation. A feeler is slidably disposed in the actuating sleeve and when the stop lever of the control device is in contact with the feeler, the feeler closes switch contacts which communicate via wiper fingers with contact paths, which are disposed on a protuberance which extends into the spindle.

Abstract: A fuel injection apparatus for internal combustion engines in which beyond a predetermined remaining stroke during the supply stroke of the pump piston, a relief conduit is opened via a control edge. The same control edge closes the relief conduit once again during the intake stroke. During the subsequent effective intake stroke, the quantity of fuel to be injected upon the following compression stroke is metered by means of the electrically actuatable valve. The magnetic valve here is already opened before the closure of the relief conduit by the control edge, so that in the opening phase of the relief conduit, the pump work chamber of the fuel injection apparatus is flushed. In this manner, precise metering of the quantity of fuel to be injected is attained.