Abstract: A tractor cabin having struts, a top framework, an air conditioner mounted on the top framework, and a ceiling assembly covering an entire ceiling area of the cabin. In order to optimize air conditioned flows, the ceiling assembly includes outlet vents in a front region thereof for delivering defrosting air flows, outlet vents in lateral sides thereof for delivering air flows for the driver, an inside air intake vent in a rear portion thereof inside the cabin, and an outside air intake vent rearwardly and outwardly of the cabin. The ceiling assembly further includes an overhead console box having an air conditioning control unit and other elements. The console box is disposed such that its lower end is on or above a straight line extending from the driver's eye level to the top edge of a windshield to provide the driver with an unobstructed forward view.

Abstract: An actuating device is proposed which is used to adjust a throttle valve disposed in the intake tube of an internal combustion engine. The actuating device includes a gas pedal adapted to engage an actuating lever, which is supported rotatably relative to a throttle valve shaft, so as to pivot counter to the force of a restoring spring. Connected to the actuating lever is a follow-up drawing spring, which is secured with one end to an intermediate lever provided with a cam disk having a curved camming surface which surface a lever arm is supported so as to operate a damper element. The intermediate lever is rotatably supported with respect to the throttle valve shaft and with a coupling stop engages a throttle valve lever, which is connected to the throttle valve shaft such that relative rotation between them is prevented. The throttle valve lever is drawn against the coupling stop by means of an uncoupling spring disposed between the intermediate lever and the throttle valve lever.

Abstract: A hydraulic construction for a working vehicle comprising a transmission case housing a hydraulic clutch and defining a lateral opening, and hydraulic control device mounted on an inner face of a cover attached to the transmission case to close the opening, the hydraulic control device acting to control oil flows to the hydraulic clutch. The hydraulic control device is hydraulically connectable to oil passage device connected to the hydraulic clutch when the cover is attached to the transmission case.

Abstract: A holder for a roll of paper which has a base shaped to prevent tipping over and which is provided with an upstanding pole for holding a roll of paper in place between a cap and the base, upstanding parallel spaced guides guide the sheets of paper for removal and impeding material is placed on the base and pole to impede removal of the sheets.

Abstract: The invention relates to a method and apparatus for temperature control of a gas-heated evaporator according to DIN standard 30 696, which for attaining, keeping constant, and limiting a predetermined operating temperature is equipped with heating and control elements.

Abstract: A fuel injection pump for internal combustion engines has a pump piston, defining a pump work chamber for generating an injection pressure; an electromagnetic control device for fixing the duration of supply during the supply stroke of the pump piston and a measuring device, which measures the return flow fuel quantity that did not attain injection during the supply stroke of the pump piston and emits an electronic return flow quantity signal (Q.sub.R). An electronic control unit imposes control signals (.phi..sub..mu.V) upon the control device as a function of the return flow quantity signal (Q.sub.R) and operating characteristics of the engine. To attain highly accurate closed-loop control of the fuel injection quantity, a fluctuation detector is provided, which detects fluctuations in the return flow quantity signal and emits the appearance of fluctuations over time in the form of detection signals (.phi..sub.A, .phi..sub.E, .phi..sub.1 -.phi..sub.4).

Abstract: A fuel injection pump for internal combustion engines, of the distributor type, having a reciprocating and simultaneously rotating pump piston as well as a governor slide adjustable relative thereto as a function of load, the injection quantity at any time being dimensioned on the basis of the position of the governor slide. For controlling an exhaust gas recirculation valve as a function of the load range or the particular injection quantity, the injection pump has a pressure switch for controlling an electrical signal in the partial-load range. The pressure switch can be made to communicate with the pressure-carrying suction chamber via a line in the housing and a conduit in the pump piston, the inlet of which conduit is controlled by the governor slide such that it is opened only whenever the outlet of a relief conduit is closed by the governor slide.

Abstract: A chroma keying generator apparatus is disclosed having a monitor camera transmitting color signals to multipliers for separating a luminance signal from an image signal and amplifying same by selected gain levels, comparison circuits for comparing two color signals with pre-selected reference levels therefor having upper and lower limits and producing outputs denoting that the ratio of the color signal to the luminance signal for a given color falls within a pre-selected reference range, and a gate circuit which evaluates the outputs from the comparison circuits to produce pulses representing a logical "1" when the output is within the reference range and a logical "0" when the output is not within the reference range.

Abstract: An electromagnetically actuatable fuel injection valve for fuel injection systems is proposed. The valve includes a valve housing and a first connection pipe serving as the core, which is surrounded by a magnetic coil. A second connection pipe is disposed inside the first connection pipe and with it forms a flow cross section for the inflowing fuel, which via the flow conduit can flow into an interior chamber of the valve housing surrounding the magnetic coil and from there can flow via a connecting line into a fuel chamber surrounding a nozzle needle, this chamber being defined by a guide bore in the nozzle body as well as by an injection port at one end and by an armature on the other. A bypass bore is provided in a head of the nozzle needle leading from this fuel chamber to an inner bore of the armature. This inner bore is open toward the second connection pipe so that at least a partial quantity of fuel is capable of flowing back via the second connection pipe.

Abstract: An apparatus for burning solid particles, in particular soot particles, in the exhaust gas of internal combustion engines comprising a combustion chamber and an ignition burner connected coaxially through an overflow opening. The ignition burner, to which fuel and combustion air are supplied, has a rotationally symmetrical glow element disposed centrally in a preparation chamber and has a glow plug disposed in a bulge of the preparation chamber. The combustion chamber includes an annular cup-like portion forming a hot combustion chamber that is open toward the overflow opening, and downstream of this hot combustion chamber has a plurality of labyrinthine annular conduits toward which a plunger tube extends centrally toward the combustion chamber, through which tube a flow of exhaust gas carrying the soot particles is directed into the hot combustion chamber.

Abstract: A method for ascertaining an optimal slip value .lambda. at at least one wheel of a vehicle, in order to be able to regulate the braking force optimally. To this end, at least the wheel speed is measured, and the vehicle speed is ascertained. By varying the braking pressure and the slip during driving, signal combinations for the wheel speed, the vehicle speed, the braking pressure and the tire/road contact force are ascertained and inserted into a given function V.sub.R (K+1). For the resultant equation system, the coefficients .alpha..sub.n can then be ascertained from which the coefficients a.sub.n of a general description of the .mu. slip curve can be ascertained. With these coefficients a.sub.n, the .mu. slip curve and its maximum, from which the optimal slip .lambda. can then be ascertained, are then clearly defined.

Abstract: A device which serves to measure the mass of a flowing medium, in particular the mass of the air aspirated by an internal combustion engine. The device includes a substrate on the bottom and top of which there is disposed a respective temperature-dependent resistor electrically connected in parallel and preferably embodied as a film, on both sides of which at peripheral areas low-impedance electrical conductor tracks are provided. The peripheral areas of the substrate are partially encompassed by U-shaped deformations provided on metallic retainers. The retainers simultaneously serve as electrical connections via soldered areas provided between the U-shaped deformations and the conductor tracks. The retainers protrude into the flow of the medium and have good thermal conductivity, so that they are virtually at the temperature of the flowing medium, and hence the temperature of the peripheral areas is also kept at the temperature of the flowing medium.

Abstract: A hydraulic brake booster including, master brake cylinder pistons disposed in telescoping fashion in a short housing structure, and a locking piston for the brake pedal actuation is disposed parallel to the master brake cylinder in axial alignment with the travel simulator and a brake valve. A further parallel disposition of an adjusting piston is acted upon by reservoir pressure and in which the master brake cylinder pistons are supported in a slidably displaceable manner.

Abstract: A plastic housing cover for a valve having an integral connector nozzle part provided with a metal threaded nipple element is proposed, in which it is assured that the threaded element, inserted in a sealing manner into the plastic, cannot destroy the tight connection with the plastic part during the twisting of insertion and possible twisting on the part of the threaded element itself. The threaded element is accordingly given an opportunity at the outset to rotate, while maintaining the tightness of the seal. The threaded nipple element is preferably a hollow threaded connector and the plastic part comprises a cover of a compressed air valve, especially a brake valve.

Abstract: A pressure modulator for anti-skid systems in vehicle brake systems, including a plunger/cylinder assembly actuatable merely by supplying electrical auxiliary energy and in the form of a linear actuator is incorporated into a hydraulic or pneumatic pressure line between a master brake cylinder and at least one associated wheel brake cylinder in such a way that upon the onset of ABS functions a pump plunger is displaced by a linear motor action in such a way that fluid pressure arriving from the master brake cylinder is counteracted while the wheel brake cylinder pressure is simultaneously relieved. By appropriate design including a double check valve, ASR functions (anti-slip regulation) are also attainable, for which the pressure modulator can be mounted directly in an appropriately shaped housing recess of a brake caliper such as that of a disk brake.

Abstract: A fuel injection pump which has a shutoff device for the fuel supply to the pump work chamber, comprising a magnetic valve, which controls an intake bore to the work chamber of the fuel injection pump. The fuel injection pump further has a relief conduit, which is connected by an annular slide on the pump piston with the suction chamber in order to terminate the effective supply stroke of the pump piston. In order to assure reliable shutoff of the fuel supply to the pump work chamber, a check valve is further disposed in the connection between the pump work chamber and the suction chamber, which check valve is closed, during the intake stroke of the pump piston, with the collaboration of the pressure drop from the suction chamber to the pump work chamber.

Abstract: The invention provides an axle reduction apparatus for a tractor having a planetary reduction mechanism mounted between an axle and an axle drive shaft. The axle carries an integrated gear consisting of an input gear to receive drive from the drive shaft and a sun gear of the planetary reduction mechanism.

Abstract: A valve arrangement which assumes at least two positions and a monitoring system which is to monitor the functional performance of the valve arrangement. A valve closing body is connected to a slider which slides in sealing fashion in the opening to be closed by the valve closing body so that the opening is not set free until after lifting of the valve closing body and the slide sets free the opening.

Abstract: A fuel injection pump for internal combustion engines having a pump piston defining a pump work chamber and having control of the injection quantity by the opening, during the compression stroke of the pump piston, an axially displaceable regulating slide disposed about the pump piston, and of a relief conduit extending in the pump piston and discharging into the jacket face of the pump piston. Upon the opening, the relief conduit discharges into an outflow conduit provided between the pump piston and the regulating slide; at the onset of the opening stroke this conduit is fully opened, and during the course of the stroke it is throttled.

Abstract: An apparatus for producing bag packages which is equipped with a device for fastening dispensing fitments to the bags. The fastening device has a holder for supplying one dispensing fitment at a time to the inside of the tube, formed from a strip of packaging material, and a sealing stamp, which are disposed in the vicinity of a tube former such that they are displaceable toward one another. The holder, which receives one dispensing fitment at a time from a conveyor device, engages the inlet opening of the tube former, while contrarily the sealing stamp is movable from the opposite side toward the outside of the tube, below the apex of a collar of the tube former.