Abstract: The present invention relates to a fluid separation device (10) for separating fluid, oil and oil spray from a gas. This fluid separation device (10) comprises a base carrier (21) in which fluid separator elements (20) in the form of flow-through tubes with worm-like segments (23) arranged therein, are integrated. The worm-like segments (23) at the same time form spiral flow paths (25) for the gas. They have a maximal length of half a pitch of the worm-like segment (23) so that the base carrier (21) together with the associated fluid separator elements (20) may be formed as one piece. Several base carriers may be arranged one after the other in a manner such that individual fluid separator elements of various base carriers form a common flow path for the gas.

Abstract: The present invention relates to a fuel cell arrangement, containing at least one bipolar plate layer (1) and an bonding partner—preferably an membrane electrode assembly (MEA) (5), wherein the bonding partner is bonded onto the bipolar plate layer (1) with a pressure-sensitive adhesive or a physically bonding adhesive, which are located on a three-dimensional sealing structure of the bipolar plate layer and/or edge region of the bipolar plate layer adjacent thereon.

Abstract: The present invention relates to a cylinder head cover for covering a cylinder head of a combustion engine. Such cylinder head covers often comprise an oil separator for separating oil and/or oil spray from the blow-by gas of combustion engines. With the present invention the oil separator is formed as a flow-through tube (10) through which the gas with the oil and/or oil spray to be separated flows. The flow-through tube (10) with its longitudinal axis (14) in the flow-through direction lies essentially in the plane of extension of the cylinder head cover (1). A worm-like segment is arranged in the flow-through tube (10), and its thread surfaces (21) form a spiral flow path (2). At the same time the cross section of the flow path lies between 1 mm2 and 800 mm2.

Abstract: The invention deals with an electrochemical system for compressing gases and/or for producing gases by electrolysis, consisting of an electrochemical compressor stack (1) having layering of several electrochemical cells, which are separated from one another in each case by bipolar plates (3; 3?), wherein the bipolar plates have openings for media supply and media discharge (5a, 5b) for the electrochemical cells and the electrochemical cell stack can be placed under mechanical compressive strain in direction (6) of the layering. The bead arrangements (7; 7?) are resilient and are provided at least in some regions to seal the openings (4, 5a, 5b) and/or an electrochemically active region (10) of the electrochemical cells.

Abstract: The present invention relates to a bipolar plate for fuel cells, comprising at least a shaped, at least partially electrically conductive foil (1), the bipolar plate having a channel structure (5) formed by the shaping of the foil (1), to convey reactants to electrodes of adjacent fuel cells and to carry away reaction products, and a microstructure (4) is integrated into the foil (1) to increase the rigidity of the foil (1). The invention also relates to a method for manufacturing corresponding bipolar plates.

Abstract: A valve for the control of a gas stream is provided with a valve housing enclosing a valve chamber. At least one pressure-sided inlet and at least one suction-sided outlet is provided with a valve opening between them to link them. An elastically movable control membrane is arranged at the valve housing which reduces or increases the flow cross section in the area of the at least one valve opening and/or opens or closes the at least one valve opening. A first device exerts a first further force on the control membrane in such a way that with an increasing pressure difference the further force exerted by the first device on the control membrane in opposite direction to the closure direction of the valve increases.

Abstract: An oil separator element of the type that is used, for example, for the separation of oil from blow-by gases in internal combustion engines is disclosed. The oil separator element has a housing which forms a cavity through which the gas can flow. The housing has an interface which divides the oil separator element into two element halves. Each of the element halves has a groove family in the interface. The grooves of the two families thereby run at an angle to one another in the interface and at least some of the grooves intersect one another. In an oil separator element of this type, the air flowing through is set in rotational motion so that both on account of the centrifugal forces that occur as well as the impact of the oil mist or the oil droplets that are contained in the gas that is carrying the oil, these oil droplets or oil mist are separated on the walls of the grooves.

Abstract: A separator for separating liquid components, in particular oil components, from a gas flow is disclosed including a cyclone and a tank. The liquid separator has a cyclone 1 with a separating chamber 2 including gas supply 3 and gas discharge 4 and a tank 5 which is connected to the cyclone 1 via a connection opening 6. The interior of the tank 5 is filled at least partially with a porous open-pore material 7 in order to interrupt the flow, dampen the flow, dampen the oscillations and/or discharge the liquid.

Abstract: The present invention relates to bipolar plate (1) as well as to a fuel cell assembly (2). The bipolar plate comprises two outer surfaces (3a, 3b) which are electrically connected to one another, for the electrical contacting, as well as the discharge and supply of gases and/or fluids to the surfaces of the fuel cells which are adjacent to the outer surfaces. The bipolar plate comprises a frame (7) open in the central region as well as an inner part (3) arranged in the central reign, wherein the frame and the inner part are elastically connected to one another.

Abstract: The present invention relates to a cylinder head cover for covering a cylinder head of a combustion engine. Such cylinder head covers often comprise an oil separator for separating oil and/or oil spray from the blow-by gas of combustion engines. With the present invention the oil separator is formed as a flow-through tube (10) through which the gas with the oil and/or oil spray to be separated flows. The flow-through tube (10) with its longitudinal axis (14) in the flow-through direction lies essentially in the plane of extension of the cylinder head cover (1). A worm-like segment is arranged in the flow-through tube (10), and its thread surfaces (21) form a spiral flow path (2). At the same time the cross section of the flow path lies between 1 mm2 and 800 mm2.

Abstract: The invention refers to a gasket (1), the gasket having at least one metal layer (3) and at least one metal ring (5) welded thereto, the metal layer (3) having at least one through-hole (4) and the metal ring (5) being arranged around the through-hole, (4). The metal layer (3) and the metal ring (5) are welded to each other along a welding bead (7) which keeps the metal layer (3) and the metal ring (5) in a spaced apart relationship to one another. The gasket (1) has welding joints which are stable for a long time, and thus a high sealing capacity.

Abstract: The invention refers to gaskets suitable for usage in internal combustion engines. The gaskets according to the invention comprise at least one metal layer, the metal layer having one or several openings in accordance with the number and location of the combustion chambers, and, if present, coolant and lubricant passageways of the internal combustion engine, and a metal ring located around the combustion chamber opening(s), the metal ring being laminated on the metal layer and joined to the latter over a plastic layer. The plastic layer provides the gasket in the region of the metal ring with plastic, plastic/elastic or elastic characteristics. Furthermore the invention refers to a method for manufacturing the gasket according to the invention.

Abstract: The invention concerns a cylinder head gasket of an internal combustion engine with a gasket sheet that contains at least one combustion chamber passage opening and a sensor device for the registration of a measurement value that depends on the operating condition of the internal combustion engine, wherein the arrangement of the gasket sheet features a connecting section for the detachable attachment of a sensor module of the sensor device and a measurement value registration position for the retention of a sensor element of a sensor module. The measurement value registration position can be a contact point near of the connecting section. However, it can also be located at a distance from the connecting section.

Abstract: The invention concerns a cylinder head gasket of an internal combustion engine with a gasket sheet that contains at least one combustion chamber passage opening and a sensor device for the registration of a measurement value that depends on the operating condition of the internal combustion engine, wherein the arrangement of the gasket sheet features a connecting section for the detachable attachment of a sensor module of the sensor device and a measurement value registration position for the retention of a sensor element of a sensor module. The measurement value registration position can be a contact point near of the connecting section. However, it can also be located at a distance from the connecting section.

Abstract: The invention concerns a cylinder head gasket of an internal combustion engine with a gasket sheet that contains at least one combustion chamber passage opening and a sensor device for the registration of a measurement value that depends on the operating condition of the internal combustion engine, wherein the arrangement of the gasket sheet features a connecting section for the detachable attachment of a sensor module of the sensor device and a measurement value registration position for the retention of a sensor element of a sensor module. The measurement value registration position can be a contact point near of the connecting section. However, it can also be located at a distance from the connecting section.

Abstract: In an arrangement for mounting pipe end flanges to the exhaust gas passages of a cylinderhead of an internal combustion engine, the cylinderhead has pockets formed at one side of the exhaust gas passages and the pipe end flanges have projections projecting in opposite directions. One of the flange projections is received in the respective pocket while the opposite one is engaged by a guide strap holding the flange in engagement with the cylinderhead. A gasket and spring structure is disposed between the flange and the cylinderhead for controlling the engagement pressure between the flange and the cylinderhead.

Abstract: The invention relates to a cylinder head gasket made of metallic material for internal combustion engines with components flanged laterally on to the engine block, which can reliably seal over a lengthy period of time even critical seal gaps in the region of additional components flanged on to the engine block. For this purpose, in the region of the gap between the engine block and/or cylinder head and the flanged-on component(s) there is in the cylinder head gasket at least one opening which communicates with at least one reservoir containing a plastic sealant mass.

Abstract: This invention relates to a flat gasket, and particularly a cylinder head gasket for internal combustion engines. In order to obtain a less expensive arrangement of the metallic seal and the soft material gasket ring, a direct procedure is adopted to provide a positive connection using metallic sealing projections provided on the seal.

Abstract: A flat gasket with a core and mesh-like elastomeric overlays where the overlays are screen-printed onto the core. The dimensions and shape of the mesh can be varied continuously over the surface of the core allowing the gasket to be adjusted for its intended use. Additional reinforcements may be printed onto the core and overlays at the same time the overlays are printed, reducing processing time and expense and allowing the gasket to be further adapted for its intended use.