Abstract: A switchable support element (1) for a valve train of an internal combustion engine, said support element (1) comprising a housing (2) that can be arranged through an outer peripheral wall (3) in a reception of the internal combustion engine and in whose bore (4) an axially movable inner element (6) extends, a head (5) of the inner element (6) protruding beyond an edge (7) of the housing (2), coupling elements (8) being associated to the inner element (6) for a selective coupling of the inner element (6) in an axially extended position of the inner element (6) to the housing (2), and said inner element (6) being biased by at least one lost motion spring (9) in a direction leading out of the housing (2), wherein the coupling elements (8) are at least one slide which, in case of uncoupling, is positioned in a guide (10) of the housing (2) extending in radial or secant direction and which comprises a flattened upper side (12) starting from a radially inner front end (11) of the slide, and this flattened upper si

Abstract: The invention is relative to an electrode for gas evolution in electrolytic and electrometallurgical industrial applications, made of a metal substrate having a surface morphology characterized by a combination of micro-roughness and macro-roughness which favors high adherence of a superficial catalytic layer in order to prevent detachment of the same and passivation of the substrate even under critical operating conditions.

Abstract: A mechanical roller tappet (1a, 1b) comprising a tappet housing (2a, 2b) shaped out of sheet metal, a drive roller (3) actuable by a cam (9) and an axle (5a, 5b) on which the drive roller (3) is mounted, end portions (24) of the axle (5a, 5b) being supported in axle eyes (23) of the tappet housing (2a, 2b), said tappet housing (2a, 2b) comprising a tappet skirt (10a, 10b) and a tappet bottom (16) possessing a contact surface (21) for an adjacent engine component on a power take-off side and at an end of the tappet skirt facing the cam, the tappet bottom is connected to the tappet skirt and is shaped into the interior of the tappet skirt while forming a pocket for receiving the drive roller, the axle eyes being arranged in first sections (18) of the tappet bottom while being spaced from an inner peripheral surface (19) of the tappet skirt and extend substantially parallel to the longitudinal direction of the tappet skirt, the contact surface being arranged on a second section (20) of the tappet bottom connecti

Abstract: A compensation shaft for a multi-cylinder engine comprising at least three bearing pegs (1a, 1b, 2b) and unbalanced masses (3a, 3b, 3c) arranged respectively in a region of each bearing peg (1a, 1b, 2), wherein at least one of the bearing pegs (1a; 1b; 2) as mounting element possesses an enhanced mounting lash “s”, so that this bearing peg participates in the mounting of the compensation shaft only after a pre-defined flexion of the compensation shaft has taken place.

Abstract: A rolling bearing slewing connection comprising two race rings arranged concentrically in each other, between which race rings rolling elements roll on associated raceways, one of the race rings having a flexible configuration wherein, as viewed in a longitudinal section, the flexible race ring has a weakened configuration, so that a radial, elastic deformation that is so large that the rolling elements are pre-stressed in the loaded state in the entire peripheral region is possible.

Abstract: A switchable support element for a valve train of an internal combustion engine, comprising a housing that can be arranged with an outer peripheral wall in a reception of the internal combustion engine, an axially displaceable pressure piston extending in a bore of the housing, said pressure piston being loaded by a lost motion spring means in a direction leading out of the housing, a head of the pressure piston extending beyond an edge of the housing, and at least one coupling piston extending in a cross-bore of the pressure piston, which can be brought partially into engagement with an entraining surface of the housing for achieving coupling, wherein, starting from an outer front end of the at least one coupling piston, a flattened portion is arranged on an underside of the coupling piston wherein a flattened portion is arranged on an underside of the coupling piston, the entraining surface in the housing per coupling piston is constituted by an underside of a window-like aperture in the bore of the housing

Abstract: An electrode for high overvoltage oxygen anodic evolution is described comprising a substrate of titanium or other valve metal, a first protective interlayer containing valve metal oxides, a second interlayer containing platinum or other noble metal, and an outer layer comprising tin, copper and antimony oxides. The electrode of the invention may be employed as anode in waste water treatment.

Abstract: A means for avoiding hash collisions by means of message pre-processing function to increase randomness and reduce redundancy of an input message whereby hash collisions are avoided when it is applied before hashing any message and the message pre-processing function comprises 4 steps like shuffling of bits, compression T-function and LFSR which steps increase the entropy of the input message at the end of 4 rounds, the output becomes more random.

Abstract: A structure of cathodic fingers for a chlor-alkali diaphragm cell with improved voltage and faradic efficiency is described, characterized in that a sheet provided with projections is inserted inside each finger. The interwoven wire mesh or the perforated sheet, forming each finger, is secured by a conductive connection, preferably by welding, to the top of each projection, thereby providing optimal uniformity of the electrical current distribution. The projections have a shape preferably equivalent to spherical caps, disposed in a quincuncial pattern. The internal volume of each finger is subdivided by the sheet provided with projections into two portions wherein both the free upward motion of hydrogen bubbles and the free longitudinal motion of the separated hydrogen take place towards the cell perimetrical chamber.

Abstract: A lift transmitting component (1), particularly for a gas exchange valve train or a fuel pump drive of an internal combustion engine, and a method of manufacturing such a lift transmitting component comprising a housing (2) and a bearing pin (6) fixed in a reception bore (5) of the housing (2) as also a roller (4) rotatable about the bearing pin (6) and optionally mounted on a rolling bearing, said bearing pin (6) being connected to the housing (2) by positive engagement through radially widened front ends (8), the bearing pin (6) is core-hardened over its entire length with a core hardness of at least 58 HRC and its front ends (8) are widened by radial spot riveting.

Abstract: An overrunning clutch clamping body for an overrunning clutch comprises a first contact surface and a second contact surface for contacting respective clamping raceways. The curvature of the contact surfaces deviates from zero in each direction. Each of the contact surfaces is configured symmetrically both to a first plane (E1) extending normal to the axis of rotation of the overrunning clutch and to a second plane (E2) that is perpendicular to the first plane (E1), and the shape of the first contact surface corresponds to the shape of the second contact surface.

Abstract: A bushing-type roller overrunning clutch comprising at least an inner or an outer ring that comprises clamping ramps adapted to the needles or rollers, said overrunning clutch further comprising a cage for the needles or rollers, as also pressure springs, said cage comprising cage elements that are made in one piece with the inner or outer ring, and a method of making a bushing-type roller overrunning clutch in which the inner or outer ring together with the clamping ramps and at least one border arranged on one side of the clamping ramps is made by deep-drawing, spring-retaining lugs are cut out of the border, and the spring-retaining lugs are bent radially towards the inner or outer ring and the free-standing tabs of the spring-retaining lugs are bent over into the region of the clamping ramps.

Abstract: A bushing-type roller overrunning dutch comprising an inner and/or outer ring (4), clamping ramps (2) adapted to the needles or rollers (5), a cage (6), pressure springs (7) for the needles or rollers (5), a bushing (1) with integrally formed clamping ramps (2), and a solid inner or outer ring (4) in or on which the bushing (1) is fixed.

Abstract: A drive valve for an internal combustion engine comprising a variable hub profile for a valve having a lever supported on a variable support point by means of a switchable support element which provides possibilities for influencing the hub profile and alternatively and cumulatively, the cam is axially displaced such that various cam paths are active on the lever.

Abstract: The invention relates to a sulphide catalyst for electrochemical reduction of oxygen particularly stable in chemically aggressive environments such as chlorinated hydrochloric acid. The catalyst of the invention comprises a noble metal sulphide single crystalline phase supported on a conductive carbon essentially free of zerovalent metal and of metal oxide phases, obtainable by reduction of metal precursor salts and thio-precursors with a borohydride or other strong reducing agent.

Abstract: Electrolysis cell in the constructive form of single elements, intended for instance for the production of chlorine, hydrogen and/or caustic soda and designed in such a way that the portion of inactive membrane surface is minimised thanks to an optimised flange type so that the ratio between the flange surface of a semi-shell and the active membrane surface can be set to less than 0.045, neither the semi-shells nor the membrane being provided with bores or recesses for accommodating the clamping members.

Abstract: An error correction system for decoding transmitted data in multichannels is disclosed. The system uses low density parity check nodes. A method of error correction using LDPC is also disclosed.

Abstract: An improved package for wrapping at least one article or a pre arranged group of articles, said package being defined by a formed longitudinal tube body of flexible wrapping sheet material having a length, height and width dimension, the said height and/or width dimension being less than the length dimension but greater than one tenth of the length dimension, a fin seal and two cross seals and no end seals, characterized in that the fin seal is formed along the height or width dimension of the package perpendicular to the length dimension and the cross seals are formed along the length dimension, the cross seals being generally perpendicular to the fin seal, the ends of the package being seal-free.

Abstract: A method of producing a finely divided ruthenium-platinum alloy catalyst comprising: (i) forming a mixture of platinum ?-diketone and ruthenium ?-diketone on a carbon support, (ii) both, platinum ?-diketone and ruthenium ?-diketone having a decomposition temperature within 20° C. of each other, (iii) decomposing said platinum ?-diketone and ruthenium ?-diketone on a carbon support at a temperature of at least 260° C. in the absence of a reducing agent (iv) followed by a reduction effected with a hydrogen containing gas mixture and a method from oxidizing methanol.

Abstract: An improved structure for gas diffusion electrodes and gas diffusion layers whereby fine gradients of porosity and hydrophobicity promote efficient gas transport, water removal and overall enhanced performance of Membrane Electrode Assemblies constructed with these components.