Abstract: The present invention relates to a camshaft (1) for more preferably motor vehicle engines with a termination element (2) arranged with an axial end side in or on the camshaft (1) and permanently joined to the latter which closes off the camshaft (1) in axial direction and which is designed as drive element for an auxiliary unit on the output side. Here it is essential to the invention that the termination element (2) is formed as a formed sheet metal part.

Abstract: A camshaft for automotive engines in particular having contra-rotating cams capable of rotating over a limited circumferential angle about the camshaft axis in which an inside shaft (2) and an outside shaft (1) are arranged concentrically one inside the other, the contra-rotating cams (3, 4) include first and second cams, of which the first cam (4) is fixedly connected to the inside shaft, and the second cam (3) is fixedly connected to the outside shaft (1), the outside shaft (1) and the inside shaft (2) are mounted with respect to one another, is to be manufacturable economically and with a high manufacturing precision.

Abstract: A plug connector for pipelines, in particular pipelines made of plastic, having a housing part comprising, in two-part form, a receiving part for a retaining element and fluid seal; and a coupling part for coupling the housing part to an assembly, and can be sealed with respect to the assembly, characterized in that the housing part is divided in such a way that the receiving part can be sealed directly with respect to the assembly.

Abstract: The invention relates to a contoured body having an additional cam contour for effecting a valve control of a piston combustion engine that is used, in particular, for an internal exhaust gas recirculation.

Abstract: A plug connector for inserting a tubular plug-in part in a fluid-tight manner, useful for plastic pipe conduits is provided, consisting of a housing part with a plug-in receptacle, a retaining element and a fluid seal arranged in the plug receptacle; the housing part having a two-piece base part consisting of a receiving part for the retaining element and a connection part for connection of the housing part, to e.g., a threaded bore.

Abstract: The invention relates to a connector device for plugingly connecting at least one media conduit. The conduit device (1) is composed of a housing part (2) comprising at least one receiving hole (4) for plugging in the conduit (6), and a clamping ring (8) which is arranged in the receiving hole (4) and cooperates with an inner cone (16) of the housing part (2) in order to lock the plugged-in conduit (6). The inner insertion piece (32) that is removably connected to the base piece (28) via a catching connection (30) and is provided with the inner cone (16). The insertion piece (32) is equipped with at least two radially elastic spring arms (40) so as to be able to remove the conduit (6), the free ends (48) of the spring arms (40) extending from the region of the inner cone (16) in the direction of the mouth side of the receiving hole (4). Radially outward-protruding catching extensions (42) of the spring arms (40) engage into corresponding catching holes (44) for detaching purposes.

Abstract: The invention relates to a plug-in connector (1) for medium conduits comprising a plug-in part (4) sealingly introducible by means of a plug shank (6) into the receiving opening (16) of a connector counterpart (2) which is sealingly closable by means of latching means (18) for preventing the pull out thereof. For this purpose, a locking element (34) is movably connected to the plug-in part (4) in such a way that it locks the latching means (18) in a safety unscrewing-preventing position and releases in the unscrewing position for carrying out an unscrewing movement for freeing from locking.

Abstract: A camshaft has contrarotating cams for automotive engines, in which an inside shaft and an outside shaft are arranged concentrically so they are contrarotating, at least one cam has at least one main cam element that can be placed radially on the outside shaft and is supported there so it can rotate. The main cam element is connected to the inside shaft in a manner that is rotationally locked via a fastener passing through a recess in the outside shaft. Further features include a fastener, a main cam element and a locking means. The fastening of the main cam element to the inside shaft is provided by widening the outside diameter of the fastener by the locking means with a resulting tightly seated connection between the fastener and the inside shaft, and the fastener and the locking means.

Abstract: A camshaft for activation of the gas exchange valves of an internal combustion engine has two coaxially mounted shafts rotatable inside and with respect to one another, first cams fixedly attached to the first shaft and second cams fixedly attached to the second shaft, a main camshaft drive acting on both shafts, and a device for adjusting the angle of rotation of the first and second shafts with respect to one another by a first actuating drive and adjusting the angle of rotation of both shafts jointly by a second actuating drive. The adjusting device has a rapid response and allows large adjustment angles with a simple structural design.

Abstract: The invention relates to a contoured body having an additional cam contour for effecting a valve control of a piston combustion engine that is used, in particular, for an internal exhaust gas recirculation.

Abstract: A gas exchange valve of an internal combustion engine, has valve lifting movements with valve displacement curves and a control unit. To this end, a control unit is provided for operation of at least one valve, in particular a gas exchange valve of an internal combustion engine, in which the valvelifting movement of the at least one valve (6) is generated by superimposing two synchronously rotating cam profiles acting mechanically on a lift operating element (4). The two cam profiles (1, 2) have specially shaped areas by means of which, when superimposed to form one of the two cam profiles (1, 2), at least one additional valve displacement (ZV) can be generated on the whole in addition to a main valve displacement movement (HV) over a full revolution of each of these cam profiles (1, 2).

Abstract: The invention relates to a valve control for actuating at least one valve, especially an inlet or outlet valve of an internal combustion engine, wherein the dimension of the valve lift of the at least one valve corresponds to a superposition of two cam profiles which can be adjusted in phases in relation to each other and are displaced synchronously. The aim of the invention is to improve the construction and functioning of the valve control. As a result, a guiding means between an intermediate element and the first cam profile is embodied as third cam profile which is formed in a complementary manner with respect to the first cam profile and rotates in a synchronous manner therewith.

Abstract: A camshaft for automotive engines in particular having contra-rotating cams capable of rotating over a limited circumferential angle about the camshaft axis in which an inside shaft (2) and an outside shaft (1) are arranged concentrically one inside the other, the contra-rotating cams (3, 4) consists of first and second cams, of which the first cam (4) is fixedly connected to the inside shaft, and the second cam (3) is fixedly connected to the outside shaft (1), the outside shaft (1) and the inside shaft (2) are mounted with respect to one another, is to be manufacturable economically and with a high manufacturing precision.

Abstract: A camshaft of an automotive engine includes two concentric contra-rotating shafts mounted one inside the other, namely an inside shaft and an outside shaft, at least one cam rotatably mounted on the outside shaft, fixedly connected to the inside shaft radially through the outside shaft via a fastening mechanism, a sleeve gripped by the fastening mechanism and inserted fixedly into aligned boreholes in the inside shaft and in the cam, a core that widens the material of the sleeve within its elasticity limits in the area of the inside shaft and is inserted into the sleeve after insertion of the sleeve into the shaft mechanism. To improve mountability, the core extends over the entire length of the sleeve and widens it beyond the area limited by the inside shaft without exceeding the upper limit of elasticity of the material of the sleeve in comparison with its uninstalled starting state.

Abstract: The invention relates to a gas exchange valve for an internal combustion engine, in each case comprising in particular a hollow valve stem (3) and valve head, in which the valve head comprises a valve bottom and a hollow valve keeper, connected to the external margin of the valve bottom, wherein the valve keeper tapers off as the distance from the bottom increases; the valve stem passes through the hollow valve keeper and is firmly connected to the valve bottom on the one hand, and to the tapering-off end of the valve keeper on the other hand; and the end of the valve stem which is connected to the valve bottom protrudes beyond the connection plane between the valve keeper and the valve bottom, is to be improved in relation to its stability and fatigue strength.

Abstract: The present invention relates to a camshaft (1) for more preferably motor vehicle engines with a termination element (2) arranged with an axial end side in or on the camshaft (1) and permanently joined to the latter which closes off the camshaft (1) in axial direction and which is designed as drive element for an auxiliary unit on the output side. Here it is essential to the invention that the termination element (2) is formed as a formed sheet metal part.

Abstract: A camshaft for activation of the gas exchange valves of an internal combustion engine has two coaxially mounted shafts rotatable inside and with respect to one another, first cams fixedly attached to the first shaft and second cams fixedly attached to the second shaft, a main camshaft drive acting on both shafts, and a device for adjusting the angle of rotation of the first and second shafts with respect to one another by a first actuating drive and adjusting the angle of rotation of both shafts jointly by a second actuating drive. The adjusting device has a rapid response and allows large adjustment angles with a simple structural design.

Abstract: A joined prefabricated individual cam (1, 2), comprising multiple cams for an adjustable camshaft in particular for an internal combustion engine of a motor vehicle, whereby the camshaft has two shafts mounted concentrically one inside the other, namely an inner shaft and an outer shaft, and the joined multiple cam is fixedly pinned to the inner shaft via radial openings provided in the outer shaft with a rotatable bearing on the outer shaft, should be easy and inexpensive to manufacture. To this end, such a multiple cam is characterized in that at least one prefabricated individual cam (1, 2) is placed as a cam ring on the outside circumference of a carrier pipe (3?) at an axial distance from the neighboring individual cams (1, 2) and is fixedly connected to this carrier pipe (3?) at a predetermined angle of rotation and axial distance assignment.

Abstract: In the case of a valve, in particular a gas exchange valve of an internal combustion engine, valve lifting movements with valve displacement curves should be possible with a control unit in a mechanically simple manner, these curves being composed of a main valve displacement curve, the execution of which may be designed to be variable and at least one variable additional valve displacement curve. The phase relation between the main valve displacement curve and the additional valve displacement curve may also be variable.

Abstract: A camshaft in which at least two completely machined individual cams are fixedly mounted on a shaft in predetermined angular positions, whereby the shaft may consist in particular of an outside shaft and an inside shaft arranged concentrically in the former, is to be manufactured in such a way that remachining of the joined camshaft is not necessary.