Abstract: A fuel cell includes a membrane electrode assembly (MEA) and at least one bipolar plate having an anode-side gas distributor structure for distributing anode reactants, a cathode-side gas distributor structure for distributing cathode reactants, and a guide passage structure for distributing a cooling medium. At least one of the anode-side gas distributor structure and the cathode-side gas distributor structure is divided into at least a first field and a second field, each of the first and second fields having an entry port and an exit port for the reactants. In addition, a method for such a fuel cell includes passing a reactant into an entry port of the first field and out of an exit port of the first field, mixing the reactant with a fresh reactant so as to form a mixture, and passing the mixture into the entry port of the second field.

Abstract: In a method for controlling an output torque of an electric variable transmission having an input coupled to a combustion engine and at least one electric motor that is at least feedable by a battery and able to recuperate energy into the battery, the battery power is limited to a maximum continuous battery power when the transmission is in a stationary operating point with a continuous revolution speed. The battery power is increased and limited to a maximum transient battery power that is greater than the maximum continuous battery power in a non-stationary operating point, upon a request for changing the gear-ratio (ratio between transmission input and output-speed) or upon a request for changing the transmissions output revolution speed.

Abstract: A low compressive load seal for a solid polymer fuel cell employs two offset peripheral projections, one on each of the anode and cathode separator plates, for compressing a gasket. The design can achieve a seal against a given burst pressure with a lower load normal to the separator plates by creating significant compression parallel to the separator plates in the gap between the offset projections. The design allows for thinner fuel cell constructions while avoiding the issues that arise in prior art designs (e.g., stress on seal material and component crushing) if reasonable tolerances were allowed for variations in component thickness.

Abstract: The invention relates to a battery with a heat conducting plate for controlling the temperature of the battery. The battery comprises a plurality of single cells connected in parallel and/or in series to each other, the cells being connected to the heat conducting plate in a heat conducting manner. In the heat conducting plate, a channel structure for a heat conducting medium is provided. In the region of the poles of the single cells, the heat conducting plate comprises bores through which the poles of the single cells extend.

Abstract: A motor vehicle includes a crash detection device for detecting an imminent collision between the vehicle and an obstacle and a vehicle lifting device that cooperates with the crash detection device to suddenly compensate for a brake diving movement of the vehicle before the vehicle collides with the obstacle.

Abstract: The invention relates to a bipolar plate (3) for a fuel cell arrangement (1), in particular for placement between two adjacent membrane electrode arrangements, comprising at least one or two plates disposed plane-parallel relative to one another, wherein a flow field (F) is formed from the channel structures made in the respective plate at least on one or both outer sides, respectively, said channel structures comprising a plurality of channels (K) running between a fluid inlet (E) and a fluid outlet (A) and webs (S) running between two channels (K). According to the invention, the channels (K) and/or the webs (S) comprise at least one varying channel width (b1), one varying web width (b2) and/or one varying channel distance (a) on at least one of the outer sides along a flow direction (R) of a fluid between the fluid inlet (E) and the fluid outlet (A).

Abstract: A filtration plate (1, 1?) for a particle filter which serves to separate particles from an exhaust gas flow of an internal combustion engine is composed of a gas-permeable carrier material which is coated with sintered metal powder, and has a surface region (2) which extends substantially in one plane and on which at least one spacer element (3, 3?) is situated. The at least one spacer element (3, 3?) has an inner elevation (9) or depression (9?) which extends away from the surface region (2) in one direction, and an outer depression (10) or elevation (10?) which surrounds the inner elevation (9) or depression (9?) at least partially and extends away from the surface region (2) in the opposite direction to the inner elevation (9) or depression (9?).

Abstract: In a device for conveying liquids or moist gases through a closed duct in a vehicle fuel cell power systems, freezing of the duct is prevented by providing a part of its internal wall flow passages or flow chambers with a nonwoven material. The nonwoven material absorbs liquid in disperse form at low temperatures through its capillary action and inhibits premature ice formation.

Abstract: Bearing shell of a connecting rod which is located in the larger connecting rod eye in which the bearing shell is constituted by several thermally sprayed layers and the topmost material layer of the bearing shell is essentially constituted by an aluminum/bismuth alloy as well as a bearing shell of a connecting rod which is at least located in the larger connecting rod eye in which the entire bearing shell is essentially constituted by a thermally sprayed layer of aluminum/bismuth alloy and process for the fabrication of a bearing shell on a connecting rod eye with the steps mechanical roughening of the connecting rod surface in the region of the bearing, thermal coating onto the surface with a bearing metal or a bearing material to build up a bearing layer and thermal coating onto the bearing layer with an Al/Bi alloy to build up a sliding layer, as well as a process for the fabrication of a bearing shell on a connecting rod eye with the steps mechanical roughening of the connecting rod surface in the region

Abstract: The method is used for automated tightening of a screwed joint (16), which is fitted to a component (10) in advance and contains a screw (12) and a nut (14), using a programmable industrial robot system (18). In this case, the invention provides that the industrial robot system (18) has a first robot (20) with a screw driving head (22) and a second robot (24) with a mating holding head (26). In order to tighten the screwed joint (16) on the component (10), the screw driving head (22) is positioned in a defined screw driving position, and the mating holding head (26) is positioned in a defined mating holding position in order to produce an interlocking connection, which is suitable for tightening of the screwed joint (16), between the mating holding head (26) and the nut (14), as well as between the screw driving head (22) and the screw (12). The screwed joint (16) on the component (10) is tightened with a predeterminable fixing torque. The interlocking connections are then disconnected.

Abstract: A method of surface treating a separator plate of a fuel cell comprises reacting the separator plate with an aqueous solution of hydrogen peroxide. The aqueous solution of hydrogen peroxide comprises one or more salts of one or more transition metals. The one or more transition metals have variable oxidation states. This method makes the surface of the separator plate hydrophilic (˜35 deg contact angle of water) and improves its electrical conductivity. The method of surface treating a separator plate (e.g., a graphite and/or graphite composite plate) of a fuel cell can further comprise a method of modifying wettability of the separator plate comprising treating the separator plate with a solution comprising one or more silanes. In another embodiment, a method of modifying wettability of a separator plate (e.g.

Abstract: In an adjusting device for an internal combustion engine, in particular a camshaft adjusting device, an adjusting unit is provided which comprises at least one currentless sensor unit for carrying out in at least one mode an adjustment as a function of a momentary phase angle between cooperating relatively rotatable members.

Abstract: A vehicle independent suspension for a double-wishbone high link axle has on each wheel side, a wheel carrier which is mounted by at least one lower link and at least one upper link in the form of a transverse or diagonal link, on an assembly frame that is fastened to the vehicle frame. The assembly frame comprises two longitudinal members and two cross members that are fixedly connected in a force-fitting or materially joined fashion to the longitudinal members. The rear cross member is extended upward forming a link carrier for the upper link or mounting the link carrier in a dimensionally rigid manner by a support element. For each longitudinal member, a further link carrier for the upper link is arranged between the cross members; and said further link carrier engages in each case around the closest longitudinal member in a form-fitting or force-fitting or materially joined fashion.

Abstract: A crankcase of an internal combustion engine with at least one main lubricant channel for supplying the internal combustion engine with lubricant and with at least one oil return flow channel (10) for return guidance of the excess lubricant into a reservoir container (11), wherein the oil return flow channel (10) exhibits a peg-shaped widening (12), which is formed by the attachment a bearing support of an oil channel core (18). The invention further concerns an oil channel core.

Abstract: In a method for operating a preventive-action protection system in a vehicle having safety devices for diminishing the consequences of accidents, driving state data is acquired by a driving state sensor system and is monitored with respect to the longitudinal deceleration of the vehicle and a braking torque request by the driver. A state of emergency braking is determined by a braking request evaluation means, and at least one of the safety devices is triggered only if a longitudinal deceleration below a longitudinal deceleration threshold is simultaneously present.

Abstract: In a camshaft adjuster control valve arrangement including a valve housing in the form of a central screw, the valve housing has a central passage of essentially constant diameter extending fully through the central screw.

Abstract: A method and a device for carrying out a work operation, on a workpiece continually moving forward on a conveying device, by an industrial robot moving along with the workpiece during a common run though a work path are provided. The industrial robot is displaceable along a separate longitudinal guide next to the conveying device. During the common run a base part of the industrial robot is rigidly coupled to a workpiece carrier, and the base part floats relative to a bogie running in the longitudinal guide. The industrial robot includes an exchangeable tool which, at the beginning of the common run through the working path, is a scanner tool connected to a working arm of the industrial robot. A relative position between the workpiece and the workpiece carrier is determined from the reference coordinate system of the industrial robot.