Abstract: The invention relates to a method of joining a thermoplastic material (10) to a fibre composite material (11), the thermoplastic material (10) being welded to the fibre composite material (11), wherein the fibre composite material is a fibre-rein-=forced matrix material or comprises a fibre-reinforced matrix material and wherein the matrix material is a thermoset or comprises a thermoset. Preferably, the thermoplastic material (10) and the fibre composite material (11) are welded together by motion welding and/or by induction welding. In addition, it is preferred that, for the preferred induction welding, an electrically conductive material is arranged in a joint area between the thermoplastic material and the fibre composite material and induction heat is generated in the electrically conductive material which is sufficient to cause the thermoplastic material to start to melt and to heat the fibre composite material.

Abstract: In an arrangement for processing excavated materials including a material crushing device and a classifier to which the crushed material is supplied for screening, the classifier includes a leveling structure which provides for a desired orientation of the classifier relative to a horizontal plane independently of the orientation of the crushing device.

Abstract: In an excavating device for a bucket excavator wherein the excavating device is supported by a carrier and has a reception chamber with an inlet opening and a material through-flow opening, a shredder is arranged in the through-flow opening, and a classifier is arranged outside the reception chamber below the through-flow opening and is mounted to the bucket.

Abstract: According to the invention, a grinding operation is used to process excavated earth, excavated material, or any other mineral material of an indeterminate shape which is to be reused at a construction site. In the process, the excavated material as well as additional piece-type coarse material passes through the grinding machine. The powdered rock resulting from the comminuting of coarse material by means of suitable breaking and/or crushing operations is then used as additive for the excavated material, which is so-to-speak generated on location. This additive is suitable for regulating the moisture of the excavated earth as well as to cause a stabilization and hardening of same. The degree of drying and hardening can be adjusted through selecting the degree of grinding, for example by grinding the coarse components more or less fine, depending on the degree of moisture or the desired post-hardening.

Abstract: The milling apparatus (1) has a bucket with a receiving chamber and has a milling unit with a milling rotor (14). The receiving chamber has a receiving opening (4) and is embodied as a bucket (2). On the bottom of the bucket (2), a through opening (19) is provided, which leads into a milling chamber (12). The milling rotor (14) can move material both into the receiving chamber and out of it again. To achieve both modes of operation, in a first embodiment a drive mechanism rotating in a predetermined direction (D) is provided; a beating arm (16) is associated with the first mode of operation, and a further beating arm (24) is associated with the second mode of operation. In another embodiment, which makes do with a single beating arm (16), the milling unit (54) can be operated in two different working positions via a turner. The positions differ from one another by a 180° rotation about a vertical axis that is perpendicular to the axis of rotation of the milling rotor (14).

Abstract: A method and an apparatus for processing mixtures of material which contain a coarse component (3) and a predominantly cohesive fine component (4). Both the mixture of material (2) and an added material (5) are delivered in continuous streams of material (11, 23) to a homogenizing and separating device (12). The homogenizing and separating device (12) serves to mix the added material (5) and the mixture of material (2) uniformly with one another, so as to put the fine component (4) of the mixture of material (2) into a state such that the fine components (4) can be separated from the coarse component (3). As a result of the continuous delivery of the mixture of material (2) and added material (5) to the homogenizing and separating device (12), intimate mixing of the added material (5) and fine component (4) is achieved so that the separation of the coarse component and fine component can take place directly in the same device.

Abstract: In an arrangement for processing excavated materials including a material crushing device and a classifier to which the crushed material is supplied for screening, the classifier includes a leveling structure which provides for a desired orientation of the classifier relative to a horizontal plane independently of the orientation of the crushing device.

Abstract: An apparatus suitable for treating mineral material, particularly excavated earth, has two rollers that rotate in opposite directions, on which a plurality of elements is disposed, the elements serving to transport and reduce the material in case its particle size is too large. Elements that are designed to exert a notch effect onto particle sizes larger than a minimum size are provided for reducing brittle and large-particle components of the mineral material, in particular. The reduction by means of the notch effect has been proven to save energy and subject machines to low wear. The elements that produce the notch effect can also reduce wood (tree stumps).

Abstract: An apparatus suitable for treating mineral material, particularly excavated earth, has two rollers that rotate in opposite directions, on which a plurality of elements is disposed, the elements serving to transport and reduce the material in case its particle size is too large. Elements that are designed to exert a notch effect onto particle sizes larger than a minimum size are provided for reducing brittle and large-particle components of the mineral material, in particular. The reduction by means of the notch effect has been proven to save energy and subject machines to low wear. The elements that produce the notch effect can also reduce wood (tree stumps).

Abstract: The milling apparatus (1) has a bucket with a receiving chamber and has a milling unit with a milling rotor (14). The receiving chamber has a receiving opening (4) and is embodied as a bucket (2). On the bottom of the bucket (2), a through opening (19) is provided, which leads into a milling chamber (12). The milling rotor (14) can move material both into the receiving chamber and out of it again. To achieve both modes of operation, in a first embodiment a drive mechanism rotating in a predetermined direction (D) is provided; a beating arm (16) is associated with the first mode of operation, and a further beating arm (24) is associated with the second mode of operation. In another embodiment, which makes do with a single beating arm (16), the milling unit (54) can be operated in two different working positions via a turner. The positions differ from one another by a 180° rotation about a vertical axis that is perpendicular to the axis of rotation of the milling rotor (14).

Abstract: In a method for processing mixtures of material which contain a coarse component (3) and a predominantly cohesive fine component (4), both the mixture of material (2) and an added material (5) are delivered in continuous streams of material (11, 23) to a homogenizing and separating device (12). The homogenizing and separating device (12) serves to mix the added material (5) and the mixture of material (2) uniformly with one another, so as to put the fine component (4) of the mixture of material (2) into a state such that the fine components (4) can be separated from the coarse component (3). As a result of the continuous delivery of the mixture of material (2) and added material (5) to the homogenizing and separating device (12), and intimate mixing of the added material (5) and fine component (4) is achieved, so that the separation of the coarse component and fine component can take place directly in the same device.

Abstract: For the breaking-up and removal of ground outer layers there serves an device that is constructed as a dredge shovel. On its rear side lying opposite the receiving opening it is provided with a milling and cutting arrangement that has a predetermined milling (or cutting) depth and that serves for the penetration of pavement layers or similar outer layers, as well as for their breakdown into a workable recycling material.

Abstract: A hydraulic system for excavators or other working machines, comprising a branching device for feeding special consumers with particularly high power consumption. The special consumer is supplied with priority until a maximum supply level is reached, which is lower than the maximum output of the hydraulic source. The remaining output difference is made available without restriction to the other consumers in the hydraulic system, wherein the distribution of the remaining flow of hydraulic fluid is not influenced. Thus, the operating ability of the machine equipped with the hydraulic system is maintained completely and in the standard manner. Any possible slow-down of the adjustment movement of a consumer is reflected proportionally in the movements of all other consumers, so that the ratios of the operating speeds or reaction speeds of the individual consumers among themselves remain the same.

Abstract: A method for determining the air/fuel ratio in an internal combustion engine combustion chamber having at least two ignition plugs spaced apart from one another. Ion-current measurement is carried out during successive operating cycles, wherein a first ignition plug is operated as an ion-current sensor and does not release ignition energy. The time of arrival at the first ignition plug of a flame front formed at the ignition point of a second ignition plug, is detected. The detected time of arrival of the flame front, the ignition point and the ignition-plug spacing are used to determine the speed of the flame and, from this, the air/fuel ratio is determined as a function of the speed and/or load of the internal combustion engine.

Abstract: A refrigerating circuit having a condenser and an evaporator, wherein shaped bodies (9, 9a) of a drying agent are arranged within a component (6), which carries liquid refrigerant of the circuit, and are so adapted to the internal geometric shape of the respective component as to filter residual moisture from throughflowing refrigerant.

Abstract: The present invention relates to a method for determining the running smoothness of an Otto spark ignition engine by measuring the ionic current (I) in at least one combustion chamber of the Otto spark ignition engine. Once the spark plug has fired, a measuring voltage is applied to the spark plug, inducing the ionic current (I). Following each ionic current measurement, initially an active, average ionic-current value (IM) is defined, and a running-smoothness value (L) is subsequently determined from a reference value and the ionic-current average value (IM).

Abstract: An internal combustion engine with electronic components controlled from a central unit, where electrical leads as conductive connection for power transmission and data transmission between the electronic components of the internal combustion engine are avoided completely wherever possible. The electronic components to be controlled from a central unit are arranged, together with the central unit, on the engine in a space that is fully enclosed by a metal housing part, power is supplied to at least some of the electronic components by high frequency electromagnetic waves generated and radiated without cables by a high frequency source arranged in the space enclosed by the metal housing part and the components to be supplied with power by the radiated electromagnetic waves from the high frequency source each have at least one receiving device for receiving the electromagnetic waves.

Abstract: The invention relates to an apparatus for operating actuators for electromagnetic valve control in internal-combustion engines.

Abstract: A method for determining an operating parameter of an internal combustion engine. An ionic current signal curve at a spark plug of the internal combustion engine is measured for a number of ignitions as a function of time. The measured signal curves are then averaged to obtain an averaged signal curve. A maximum and/or the time of the maximum of the averaged signal curve is determined. Based on the maximum of the average signal curve and/or the time of the maximum of the average signal curve, the operating parameter is calculated.

Abstract: In an air supply arrangement for an internal combustion engine, particularly for motor vehicles having devices for cooling the engine and for supplying exhaust gas secondary air to the exhaust system of the engine, a single air pump driven by an electric motor is provided for supplying air to the engine cooling system and to the exhaust system and devices for switching the air flow supplied by the air pump to either the engine cooling system or the engine exhaust system are provided. A control unit is also provided which controls the electric motor depending on the amount and pressure of the air needed for the cooling system and the engine exhaust system.