Abstract: Reciprocating-piston machine (10), in particular a combustion machine, with a variable compression ratio, having an adjustment device for adjusting the compression ratio, having a sensor device for detecting the compression ratio, and having a controller which is designed to repeatedly activate the adjustment device if a deviation and a detected compression ratio and a setpoint compression ratio exists.

Abstract: Reciprocating-piston machine (10), in particular a combustion machine, with a variable compression ratio, having an adjustment device for adjusting the compression ratio, having a sensor device for detecting the compression ratio, and having a controller which is designed to repeatedly activate the adjustment device if a deviation and a detected compression ratio and a setpoint compression ratio exists.

Abstract: The invention relates to an internal combustion engine having an adjustable variable compression ratio, a crankshaft having a crankshaft center line and at least one counterweight, which has an extent with a maximum distance from the crankshaft center line, at least one connecting rod, an adjusting mechanism for adjusting the adjustable variable compression ratio, a switchover element for switching the adjusting mechanism, wherein the switchover element is arranged on the connecting rod, and an actuating element for switching over the switchover element from a first position, which corresponds to a first compression ratio, into a second position.

Abstract: The invention relates to a device for changing a compression ratio of an internal combustion engine. The device comprises a connecting-rod head (1) with an eccentric bearing (2), an eccentric (3) which is mounted rotatably in the eccentric bearing (2) and which comprises a piston pin bearing (3), a piston pin (5) which is mounted rotatably in the piston pin bearing such that, by means of rotation of the eccentric the position of the piston pin relative to the connecting rod head (1) can be adjusted from a top dead centre to a bottom dead centre and vice versa, and a locking device (8) for locking the eccentric at the top dead centre.

Abstract: The invention relates to an internal combustion engine (1) having a settable variable compression ratio and having a connecting rod (3), which connecting rod has an adjustment mechanism (4) for the adjustment of the settable variable compression ratio, a first hydraulic line (5), a second hydraulic line (6), a hydraulic outflow duct (47) and a switching module (21) for the switching of the adjustment mechanism (4), wherein the switching module (21) is arranged on the connecting rod (3) and a first position of the switching module (21) corresponds to a first compression ratio and a second position of the switching module (21) corresponds to a second compression ratio that differs from the first compression ratio, wherein the switching module (21) has a switching element (22) and a sleeve (23) surrounding the switching element (22), wherein the switching element (22) and the sleeve (23) are movable relative to one another, and the switching element (22) has a recess (36) and an edge region (37) bordering the re

Abstract: A switching valve for an internal combustion engine, which has an adjustable compression ratio, namely to control a hydraulic oil flow particularly for an eccentric adjustment mechanism, having a control piston, which can be shifted by a switching mechanism similar to a ballpoint pen mechanism, wherein the control piston controls the hydraulic oil flow dependent on the switch position thereof, wherein the switching mechanism comprises at least one actuation element and a detent element, and wherein at least the control piston, the actuation element and the detent element are nested in each other so that they are implemented in a concentrically overlapping manner, at least in sections, when viewed in the shifting direction of the control piston.

Abstract: The invention relates to an internal combustion engine having an adjustable variable compression ratio, a crankshaft having a crankshaft center line and at least one counterweight, which has an extent with a maximum distance from the crankshaft center line, at least one connecting rod, an adjusting mechanism for adjusting the adjustable variable compression ratio, a switchover element for switching the adjusting mechanism, wherein the switchover element is arranged on the connecting rod, and an actuating element for switching over the switchover element from a first position, which corresponds to a first compression ratio, into a second position.

Abstract: The present invention relates, in particular, to a variable compression ratio (VCR) piston machine comprising a crankshaft, at least one connecting rod, which is rotatably mounted on the crankshaft, wherein the connecting rod has a small bearing eye and a large bearing eye, and wherein the connecting rod has a connecting rod shaft, further comprising a compression piston, which is arranged on the connecting rod, preferably a combustion chamber piston which can be adjusted by means, for example, of an eccentric or some other adjusting element and of an adjustment system, preferably an adjustment linkage, wherein the adjustment system is supported by means of at least one support piston, which can be moved in a support cylinder of the connecting rod. A proposal is furthermore made for a method in which an adjustment accomplished by external forces acting on the adjustment system is supplemented or improved by additional adjustment forces.

Abstract: A piston engine having a crankshaft and at least one connecting rod which corotates with the crankshaft, wherein the connecting rod has a small eye and a large eye. The connecting rod has a compression piston, preferably a combustion chamber piston, which is arranged on the connecting rod and can be adjusted eccentrically by means of an eccentric member and an adjusting system, preferably an adjusting linkage. The adjusting system is supported by means of at least one support piston which can be moved in a support cylinder of the connecting rod, wherein the support cylinder and the support piston form a specific leakage path. Oil of the piston engine counteracts a movement of the support piston as damping medium in the support cylinder, wherein the oil can flow along the specific leakage path between the support piston and the support cylinder.

Abstract: The invention relates to an internal combustion engine (1) having a settable variable compression ratio and having a connecting rod (3), which connecting rod has an adjustment mechanism (4) for the adjustment of the settable variable compression ratio, a first hydraulic line (5), a second hydraulic line (6), a hydraulic outflow duct (47) and a switching module (21) for the switching of the adjustment mechanism (4), wherein the switching module (21) is arranged on the connecting rod (3) and a first position of the switching module (21) corresponds to a first compression ratio and a second position of the switching module (21) corresponds to a second compression ratio that differs from the first compression ratio, wherein the switching module (21) has a switching element (22) and a sleeve (23) surrounding the switching element (22), wherein the switching element (22) and the sleeve (23) are movable relative to one another, and the switching element (22) has a recess (36) and an edge region (37) bordering the re

Abstract: A switching valve for an internal combustion engine, which has an adjustable compression ratio, namely to control a hydraulic oil flow particularly for an eccentric adjustment mechanism, having a control piston, which can be shifted by a switching mechanism similar to a ballpoint pen mechanism, wherein the control piston controls the hydraulic oil flow dependent on the switch position thereof, wherein the switching mechanism comprises at least one actuation element and a detent element, and wherein at least the control piston, the actuation element and the detent element are nested in each other so that they are implemented in a concentrically overlapping manner, at least in sections, when viewed in the shifting direction of the control piston.

Abstract: In a process for producing a positive nickel hydroxide electrode for a nickel-metal hydride or nickel-cadmium storage battery a positive nickel hydroxide electrode produced in an earlier stage in the process is after-treated by introducing a saline solution into the active mass contained in an electrode carrier structure of the electrode in order to obtain a positive nickel hydroxide electrode with an improved current yield.

Abstract: The invention provides a treatment for edge surfaces and faces of metallized fiber structure framework plates for use in electric accumulators. The edge surfaces and faces, except for the starting portion of the current tapping tab, are mechanically, thermally or chemically freed of projecting metallized fiber ends and fiber bundles in order to avoid short circuits or soft shorts caused by dendrites penetrating the cell separator or by metallized fiber ends. The mechanical, thermal or chemical treatments can take place individually or in combination with one another.

Abstract: In order to be able to produce prismatic, unsealed nickel-cadmium batteries without limiting the amount of electrolyte, the invention proposes the manufacture of an electrode system for nicad batteries under at least partial utilization of fibe- structure electrodes, for which purpose positive and negative lamellar electrodes are produced and, with separator material interlayered, stacked in alternating fashion in a defined number to form an electrode assembly. The respective equidirectional electrodes are mutually connected by means of connecting straps; the electrode assembly is pressed and positionally locked between mechanical clamping elements into a unitized, coplanar, undeformable block, under simultaneous compression of the separator material interlayered between the electrodes.

Abstract: In order to be able to produce prismatic, unsealed nickel-cadmium batteries without limiting the amount of electrolyte, employing fiber-structure electrodes which, while retaining the above-described advantages over conventional nicad batteries in terms of the charging voltages, are compatible with these conventional products by not requiring higher charging voltages yet involve less maintenance in connection with water consumption, the invention proposes the manufacture of an electrode system for nicad batteries under at least partial utilization of fiber-structure electrodes, for which purpose positive and negative lamellar electrodes are produced and, with separator material interlayered, stacked in alternating fashion in a defined number to form an electrode assembly, with the respective equidirectional electrodes mutually connected by means of connecting straps; the said electrode assembly is pressed and positionally locked between mechanical clamping elements into a unitized, coplanar, undeformable bloc

Abstract: The invention provides a treatment for edge surfaces and faces of metallized fiber structure framework plates for use in electric accumulators. The edge surfaces and faces, except for the starting portion of the current tapping tab, are mechanically, thermally or chemically freed of projecting metallized fiber ends and fiber bundles in order to avoid short circuits or soft shorts caused by dendrites penetrating the cell separator or by metallized fiber ends. The mechanical, thermal or chemical treatments can take place individually or in combination with one another.

Abstract: The invention provides a treatment for edge surfaces and faces of metallized fiber structure framework plates for use in electric accumulators. The edge surfaces and faces, except for the starting portion of the current tapping tab, are mechanically, thermally or chemically freed of projecting metallized fiber ends and fiber bundles in order to avoid short circuits or soft shorts caused by dendrites penetrating the cell separator or by metallized fiber ends. The mechanical, thermal or chemical treatments can take place individually or in combination with one another.

Abstract: The invention relates to a process for the continuous chemical metallizing of porous substrates in a wet-chemical manner. According to the invention, the different reaction rates of the adsorption or ionic reduction reaction, in the case of activating with Pd/Sn, are adapted to the chemical metallizing reaction used. The removal of the spent process solutions from the pores of the substrate takes place by suction. The invention permits a continuous implementation of the process of depositing a metal layer on an electrically non-conductive, synthetic substrate, which can be used at the start of a galvanic reinforcing process of the chemically deposited metal coating.