Abstract: A guide rail or a tensioning rail for a chain drive of an internal combustion engine, comprises two separate sliding elements associated with the same span of the chain drive and arranged on a support, the sliding elements having a sliding surface that exhibits a convex curvature in the direction of movement of the chain. This kind of rail is to be improved with respect to its producibility and its tensioning and guiding effect. The angle bisectors of the two opening angles of the two convex sliding surfaces extend relative to each other at an angle other than 0°, the sliding elements being attached to the support as separate modular components. Kits for a guide rail and a tensioning rail as well as a chain drive are provided.

Abstract: A tensioning rail for a drive chain, in particular for a chain drive of an internal combustion engine, comprises a basic body and a spring unit, the basic body including a sliding surface for contact with the drive chain and a press-on surface. The spring unit comprises a tensioning end arranged on the press-on surface and a support end supportable on a counter bearing, a wear protection element being provided, which is arranged at the support end of the spring unit. In addition, the invention relates to a chain drive including such a tensioning rail as well as to the use of such a tensioning rail for a chain drive of an internal combustion engine.

Abstract: A method is provided for producing chain link plates for a plate link chain with alternating inner chain links and outer chain links, where the contour of the chain link plates has several punch sections and two face side and rear side contact sections which, after punching out the punch sections from the sheet metal strip provided, are first connected to complementary contact sections of adjoining chain link plates and separated in a subsequent separation cut. Further provided are bush or roller chains with outer chain link plates thus produced and a corresponding chain drive for an internal combustion engine with such a bush or roller chain.

Abstract: A chain drive assembly for an internal combustion engine comprises a tensioning rail supportable on an engine block so as to be pivotable about a pivot bearing axle and further comprises a pivot bearing that can be provided on the engine block. The tensioning rail having a projection, which protrudes from the tensioning rail relative to the support body, so as to hold, at least during mounting, the tensioning rail at a mounting position. Additionally, the invention relates to the use of such a tensioning rail for mounting on the engine block of an internal combustion engine as well as to a bipartite chain drive of an internal combustion engine and a suitable mounting method.

Abstract: An articulated chain comprises alternate inner and outer chain links interconnected by a chain joint. Each inner chain link comprises at least one chain link plate and each outer chain link comprises at least two chain link plates, and the chain link plates have a structured link plate back that is adapted to be brought into contact with a tensioning or guide rail. The structured link plate back comprises at least one recess having a closed circumference or at least one recess having a circumference that is closed with the exception of an access opening, and is straight or slightly concave in shape for contact with a tensioning or guide rail. A chain drive comprising a driving sprocket, at least one driven sprocket, and at least one tensioning or guide rail and an articulated chain, in contact with the at least one tensioning or guide rail is provided.

Abstract: A tensioning rail for an endless drive means, in particular for a chain drive of an internal combustion engine, comprises a support body and a sliding body arranged on the support body and having a sliding surface for contacting the endless drive means as well as at least one lubricant opening for wetting the sliding surface with lubricant. A press-on area provided on the support body and used for contacting a tensioning device has an inflow opening for the lubricant. A feed passage extending from the inflow opening through the support body and a lubricant passage extending in the longitudinal direction of the support body allow the supply of lubricant to the at least one lubricant opening.

Abstract: A tensioning rail for an endless drive, in particular a timing chain drive of an internal combustion engine, comprises a sliding lining body and a reinforcement body inserted in the sliding lining body and connected thereto by a detent connection, the sliding lining body comprising a slide rail for contact with an endless drive and a press-on region for the tensioning piston of a tensioning device. The tensioning rail is characterized in that the press-on region is arranged in a resiliently movable fashion on the slide rail and comprises a detent device as a constituent part of the detent connection such that the detent device is adapted to be locked due to the resilient movement of the press-on region. An endless drive having a tensioning rail of the type disclosed is also provided.

Abstract: A tensioning or guide rail for a chain drive, in particular for a chain drive of an internal combustion engine, comprises two spaced-apart contact sections and one non-contact section arranged therebetween, the contact sections each having a sliding surface which is adapted to be brought into contact with a chain, and the non-contact section interconnecting the two contact sections as a support structure. Such a rail is to be configured such that the installation space available can be utilized more advantageously. To this end, the support structure of the non-contact section comprises an opening extending continuously from a front to a rear of the tensioning or guide rail and separating the contact sections provided with the sliding surfaces. The invention also relates to an endless drive of the type in question.

Abstract: A tensioning or guide rail for a drive chain, in particular for a chain drive of an internal combustion engine, comprises a carrier body with at least two chain guide sections and with at least one recessed section. The at least one recessed section is arranged between two chain guide sections and recessed relative to a tangent connecting the adjoining chain guide sections, the at least two chain guide sections having each a sliding-contact surface for contacting the drive chain. A continuous sliding body is arranged on the carrier body along the at least two chain guide sections and the at least one recessed section, the sliding body defining the sliding-contact surfaces of the at least two chain guide sections and a surface of the at least one recessed section, the surface facing the drive chain.

Abstract: A rocker joint for a bush chain or roller chain, comprises a bush having a through-passage running along the bush longitudinal axis, a first rocker surface formed in the through-passage, and a pin arranged in the through-passage of the bush and which has a second rocker surface formed thereon. A chain comprises inner and outer chain links, which are offset relative to each other, the inner and outer chain links being connected by rocker joints, each of which comprises a bush and a pin. A friction-reducing joint and a chain with reduced friction and less wear are provided, and thus a reduced CO2 emission of the associated internal combustion engine, the chain being stable and easy to produce. This is achieved in that the bush is configured as a straight circular cylinder in which the through-passage is arranged in the bush eccentrically with respect to the longitudinal axis of the bush.

Abstract: A tensioning or guide rail and a method of producing a tensioning or guide rail for an endless drive means are provided, in particular for a chain drive in an internal combustion engine, comprising a supporting body and a sliding body of plastic material arranged on the supporting body. The method comprises the steps of producing a sliding body profile strand and separating the individual sliding body from the sliding body profile strand. The sliding body of a tensioning or guide rail is a segment of such a sliding body profile strand, the plastic material being oriented in a longitudinal direction.

Abstract: An articulated chain having alternating inner and outer chain links connected by hinge, having a running direction, each inner link comprising a link plate and each outer link comprising two link plates and two hinge pins interconnecting, each hinge pin rotationally fixed in an opening of the associated outer link plates and extending through an opening of the associated inner link to form a chain hinge, the links having plate backs for contact with a tensioning or guide rail. The link plate back comprises a leading area viewed in the running direction and an adjoining trailing area, the leading area extending substantially parallel to a plane projected between center lines of pin openings and hinge openings, respectively, and the trailing area extending from a part of the link plates at an angle to the plane projected between the center lines, the vertex of the angle pointing in the running direction.

Abstract: In the field of a slide rail for tensioning and guiding an endless drive member, comprising at least one bore and a screw captively held in the bore, permitting the captive mounting of screws even in thin-walled slide rails is provided. A sleeve is mounted in the bore and the sleeve comprises engagement elements at its end facing the rail, said engagement elements being engaged with the wall of the bore, and a stop collar lying against a stop surface formed at the slide rail, and lock elements are embodied in the sleeve which engage the thread of the screw and lock the screw at least in an assembly position, wherein said slide rail is thin-walled. Furthermore, an assembly method is provided for manufacturing the slide rail with a captively held screw and to the loss prevention device per se.

Abstract: A tensioner, for a camshaft-camshaft chain drive with a drive chain and camshaft bearing bridge for fastening camshaft bearings to an engine block, comprises a tensioner housing with a guiding-side guide shoe, a tensioning piston slidably guided in a piston bore of the tensioner housing and provided with a tensioning-side tensioning shoe, and a fastening flange projecting laterally from the tensioner housing and having a mounting surface facing the tensioning side. A mounting plane defined by the mounting surface of the fastening flange intersects the tensioner housing at an axial distance from the guiding surface of the guide shoe at most 40% of axial transport length of the tensioner between the guiding surface of the guide shoe and the tensioning surface of the tensioning shoe. The camshaft bearing bridge has a contact surface for the fastening flange, to be in contact with the mounting surface of the fastening flange.

Abstract: A method for producing a tensioning or guide rail with a base body, and a vibration absorber arranged on the base body is provided, comprising the steps of: providing a base body, at least partially embedding the base body into plastic material that is in a flowable state, and hardening the plastic material to obtain a vibration absorber that is captively arranged on the base body. The method also relates to a respective rail and to a continuous drive for a combustion engine.

Abstract: A link chain has alternating inner and outer chain links connected by a chain articulation, having a direction of motion, wherein each inner chain link has at least one inner plate, and each outer chain link has at least two outer plates and two chain link pins connecting these plates, each pin being rotationally fixed in a pin opening of the associated outer plate and extending through a link opening of the associated inner chain link to form a chain articulation. The inner and/or outer chain links have plate backs contactable with a tensioning rail or guide rail. A forward region of the plate backs in the direction of motion of a part of the inner and/or outer plates extends at an angle to a plane projected between the center lines of the pin openings or link openings. The vertex of the angle points away from the direction of motion.

Abstract: A rocker joint for a bush chain or roller chain, comprises a bush having a through-passage running along the bush longitudinal axis, a first rocker surface formed in the through-passage, and a pin arranged in the through-passage of the bush and which has a second rocker surface formed thereon. A chain comprises inner and outer chain links, which are offset relative to each other, the inner and outer chain links being connected by rocker joints, each of which comprises a bush and a pin. A friction-reducing joint and a chain with reduced friction and less wear are provided, and thus a reduced CO2 emission of the associated internal combustion engine, the chain being stable and easy to produce. This is achieved in that the bush is configured as a straight circular cylinder in which the through-passage is arranged in the bush eccentrically with respect to the longitudinal axis of the bush.

Abstract: The damping device of the tensioning device has at least one damping channel that is open in both flow directions as a component of the fluid supply in such a way that during operation at least a portion of the supply stream is fed through the at least one damping channel into the pressure reservoir, and the damping device and the venting device are coupled with each other by fluid engineering means such that a drainage flow from the pressure reservoir occurs via the damping device and the venting device in combination, and the supply flow occurs predominantly independently of the venting device.

Abstract: A tensioning system with restoring action for tensioning a flexible drive means is provided, in particular a drive chain of an internal combustion engine, composed of a tensioning apparatus and a restoring device. The tensioning apparatus comprises a housing, a tensioning piston which is guided in a movable manner in the housing and which has a detent profiling, and a detent hook for the stepped adjustment of the working range of the tensioning piston, wherein the detent hook has a clamping region for engaging into the detent profiling in the tensioning piston. Here, a retraction stop is provided at the housing, at which retraction stop, in an abutting state of the detent hook, a further retraction movement of the tensioning piston into the housing is prevented by virtue of the clamping region being clamped on the detent profiling.

Abstract: A link chain is provided, in particular a drive chain of a combustion engine, with chain links connected one to another by a chain articulation. The inner and outer chain links, which preferably are arranged in alternation, each have at least two link plates arranged in parallel with each other, each with two link openings. One link pin in each case extends through one of the link openings of the link plates to form a chain articulation. In this design, the link plates are made of a boron-manganese steel.