Abstract: The invention relates to a method for adjusting the degree of engagement of a tool (6, 7) disposed on the outer radius of at least one associated rotating roll (4, 5) with a web of material (1) running past it. The aim of the invention is to improve the method so that the degree of engagement of the tool can be adjusted without loss of time and without producing any scraps. To this end, for adjusting the degree of engagement of the tool (6, 7) with the web of material (1), first several different degrees of engagement are electronically defined by means of different peripheral speeds of the tool (6, 7) so as to be retrievable. Once an adjuster (13) is activated, the change to another defined degree of engagement takes place during operation precisely when the tool (6, 7) engages with the web so that the new degree of engagement is carried out when the tool (6, 7) engages with the web of material (1) for the next time.

Abstract: The invention relates to a remote controller for heavy construction machines with a body, comprising a cavity, running between a first outlet end and a base, a first pushrod, running between a head and a base, arranged to slide with a back and forth movement in the cavity along an axial direction, a handle which may pivot with relation to the body, whereby a skirt of said handle is in direct contact with the head. The first pushrod may furthermore be moved to an extended position opposite to the depressed position with relation to the idle position thereof. First elastic return means are arranged in the cavity to force the pushrod into the extended position thereof and detection means are provided to detect the position of the first pushrod.

Abstract: The electronic monitoring circuit for monitoring one of a group of series-connected capacitor units in an intermediate circuit in order to detect short-circuiting of one of the capacitor units includes a device for deriving a reference voltage (14) from an intermediate-circuit voltage (L(+), L(?)) applied across the series-connected capacitor units (1, 2), a device for generating a control signal consisting of a voltage difference between the reference voltage (14) and a junction voltage at a junction (13) between two capacitor unit (1, 2) and a device for generating an error signal when said voltage difference falls below or exceeds an activation threshold voltage thus indicating that one of the capacitor units (1,2) has been short-circuited. The activation threshold voltage corresponds to a breakdown voltage of a zener diode provided in the monitoring circuit.

Abstract: What is disclosed is a hydraulic control arrangement for controlling a consumer, comprising a continuously adjustable directional control valve, an individual pressure compensator associated to the latter, as well as shut-off blocks arranged downstream from the directional control valve. In accordance with the invention, in the case of a insufficient supply of the consumer the pressure compensator is subjected not to the pressure in the supply (load pressure) but to a higher pressure, so that the control pressure difference at the supply control edge is raised.

Abstract: A double pressure cylinder arrangement including a first pressure cylinder and a second pressure cylinder positioned in a spaced and axis-parallel relationship to the first pressure cylinder. A carrier strut is connected to a bottom side of the first pressure cylinder and the second pressure cylinder. The carrier strut includes a intermediate section. A substantially u-shaped housing element has two leg sections. Each leg section houses one of the pressure cylinders. Connection lines for driving the first pressure cylinder and the second pressure cylinder are integrated in the intermediate section.

Abstract: A hydraulic control arrangement is disclosed for the load pressure independent control of a consumer, comprising a distribution valve forming an inlet metering orifice, a corresponding individual pressure compensator, a stop valve provided for each consumer connection which may be released by means of a pilot valve and an anti-cavitation valve by means of which pressure medium can be drawn from a reservoir to avoid cavitation. According to the invention, the distribution valve and the stop valves are arranged along two parallel axes, while the axes of the two pilot valves are arranged perpendicularly to these two axes. The anti-cavitation valves in turn extend perpendicularly to the axes of the distribution valves, the stop valves and the anti-cavitation valves.

Abstract: A magneto-rheological (MR) damper including a piston guided in a cylinder that is filled with a magneto-rheological fluid, its work volume being formed oblique relative to the piston axis between the piston and the cylinder.

Abstract: A linear guide unit has an elongated guide housing having a longitudinal axis and having walls bordering a guide cavity, with two side walls form a longitudinal opening of the guide cavity, a slider that is movably guided in the direction of the longitudinal axis on at least one guide track provided in the guide cavity and connectable with a unit to be moved by the linear guide unit through the longitudinal opening, a drive device for moving the slider in the direction of the longitudinal axis, a profiled channel attachable to the guide housing for housing functional elements, with the positive connection is additionally secured by frictional engagement or by snapping into place, wherein the profiled channel has at least one lateral mounting projection and is in holding contact via this mounting projection with the exposed end of a side wall or a part joined therewith.

Abstract: The invention relates to a hydraulic distributor comprising a casing, a pressurised fluid inlet, a fluid return port, at least two working ports, a slide which is housed in the casing, a passage which is provided in the casing in order to connect the inlet with the working ports, adjustment means which are connected to a load detection line channel, a supply bridge which opens into the slide hole on either side of the inlet chamber, and two main check valves which are borne internally by the slide, The inventive distributor further comprises two secondary check valves which are mounted in the longitudinal channels upstream of the main check valve heads and which are connected to torque slits which open into the hole in which the slide moves.

Abstract: In a linear guide unit that has an elongated guide housing which limits a guide hollow space with a longitudinal opening, a wagon arrangement which is displaceably guided in the guide hollow space on guide rails, a connection part for connecting the wagon arrangement to an object to be guided, a cover element arranged between movement tracks of the connection part and covering the longitudinal opening, in accordance with the present invention forwardly of and/or rearwardly of the wagon arrangement, at least one support unit is arranged displaceably in direction of the longitudinal axis for supporting the cover element relative to the guide housing; also additionally or alternatively the support unit can support the cover element relative to the wagon arrangement.

Abstract: The invention relates to a fluid distributor for a heavy-construction machine, comprising a body and a pressure-reducing means which is mounted in said body and comprises a pushrod arranged in a cavity of the body, a plunger being mounted in an oscillating manner. At least one guide in which the pushrod is displaced is immobilised in the cavity, a first seal and a second seal respectively ensuring the hydraulic sealing inside and outside the guide. Said guide comprises at least part of the upper guide and part of the lower guide which are nested inside each other and mutually define a recess facing the pushrod, the first seal being trapped in the recess.

Abstract: What is disclosed is an axial-piston machine having at least one swash plate and one cylinder drum supported thereon, which includes a multiplicity of cylinder sleeves. To the cylinder sleeves a row of pistons is associated which is connected with a shaft. In accordance with the invention, the cylinder sleeves are articulatedly mounted in the cylinder drum.

Abstract: A drive mechanism is disclosed which includes a hydraulic pump whereby at least two hydraulic motors may be supplied with pressure medium. The drive mechanism in accordance with the invention has on the meter-in side or on the meter-out side of each hydraulic motor a variable hydraulic resistor that is biased into a basic position of minimum open cross-section and may be subjected to a control pressure in a direction of increased open cross-section. This control pressure is dependent on the pressure on the meter-in side or on the meter-out side of the hydraulic motor.

Abstract: What is disclosed is a lifting magnet assembly for a servo valve or control valve comprising a proportional magnet which acts on a valve spool of the control valve or servo valve through a tappet. Between the spool and the proportional magnet a failsafe magnet is provided which is penetrated or encompassed by the tappet of the proportional magnet.

Abstract: A rotary bearing has a first lubricant passage having one end which opens in an inner peripheral surface of a radially outer bearing part and another end which is connectable with a lubricant supply, at least one second lubricant passage which leads from an outer peripheral surface of a radially inner bearing part to an inner peripheral surface of the radially inner bearing part, and a ring chamber between the outer bearing part and the inner bearing part, in which the first lubricant passage and the second lubricant passage open the ring chamber, and a lubricant distributing element formed as a separate part arranged on the ring chamber, and is in a lubricant supplying connection with at least one lubricant passage, and outflow paths including a first outflow path for supplying lubricant to the engaging surfaces of the bearing parts, and a second outflow path for supplying lubricant through the second lubricant passage to a further lubricating point.

Abstract: What is disclosed is a brake system for a mobile machine, e.g., for a wheel loader, comprising two hydraulic circuits to each of which at least one respective wheel brake cylinder is associated. Control of the wheel brake cylinders is effected through a brake valve arrangement which, in accordance with the invention, is formed by two brake valves each realized with a hydraulic pilot control, wherein the braking pressure at the one brake valve is reported via a control line into a pilot control chamber of the other brake valve.

Abstract: A proportionally adjustable pressure limiting valve wherein a valve cone may be actuated via an armature of a proportional solenoid. The valve cone is cardanically supported in the armature. Additional guidance of the valve cone is effected through the intermediary of a housing-side guide, wherein the play between valve cone and housing-side guide is designed to be less than the play between valve cone and armature.

Abstract: What is disclosed is a directional control seat valve comprising a piston that is biased against a valve seat by means of a spring. The piston is associated with a compensating piston whose end face subjected to the pressure at one of the ports of the directional control valve is arranged before the valve seat when viewed in the closing direction.

Abstract: A hydraulic radial piston engine has a lifting ring fixed to the casting, a rotor mounted opposite the lifting ring such that it is rotatable about an axis of rotation, multiple piston seats aligned radially in the rotor relative to the axis of rotation, and multiple pistons each displaceably mounted in a piston seat and which, over at least part of their length, have a non-circular guiding and sealing cross section that is coincident with a non-circular guiding and sealing cross section of the piston seats. Circularly cylindrical rollers are borne by the piston. With a given overall size, a greater swept volume per piston is possible and therefore a greater torque is produceable.

Abstract: A closing body is mounted in an axially displaceable manner in a bore of a fluidic valve to control a pressure medium flowing via the valve. The closing body has a sealing section, interacting with a seating edge of valve, and a guide section which serves to guide the valve cone in the bore. The guide section is provided with recesses which allow an overflow of pressure medium between the two sides of the closing body. To reduce costs of production, the guide section of the closing body is of cylindrical form and its surface is provided with at least one helical groove which leads from one side of the guide section to its other side. The closing body is useful in particular in constant pressure valves for controlling fluid pressure medium. The sealing section of the closing body is normally of conical form.