Abstract: The invention is related to a toothed chain with alternating inner and outer chain links each joined by means of a chain joint, wherein the inner chain links comprise at least one inner plate and at least two joint bushes running perpendicularly through the same, the outer chain links comprise at least two outer plates and at least two joint pins running perpendicularly through the same, and to form a chain joint, one joint pin of the outer chain link each extends through a joint bush of the inner chain link, and at least one inner plate of the inner chain link and/or at least one outer plate of the outer chain link is embodied as a toothed plate with each two teeth defined by an outer flank and an inner flank each.

Abstract: The invention relates to a chain wheel (2, 3), especially for a timing chain drive, with a rotary shaft, a sprocket wheel (7) positioned around the rotary shaft featuring multiple alternating teeth (17) and tooth gaps (16) distributed around its circumference, as well as at least one chain guide (8), the sprocket wheel (7) and the chain guide (8) are rigidly joined, the chain guide (8) incorporates a contoured surrounding support cage (9) causing it to bear on contact faces of link plates (13, 14) and the support cage (9) or raised regions of the support cage (9) extend along a curved circumference that constitutes the perimeter of the chain guide (8), said perimeter of the chain guide (8) having a non-circular profile.

Abstract: A toothed chain includes inner chain links and outer chain links alternatingly succeeding one another, the outer chain links comprising at least two outer plates, at least one middle plate and two pins. The inner chain links include at least two inner plates formed as tooth plates, the at least one middle plate being positioned between the inner plates. Each of the inner plates has a plate thickness d and a land width b, a ratio of plate thickness d to land width b being greater than 1.6.

Abstract: The invention relates to a timing drive for an internal combustion engine, comprising a crankshaft, at least one camshaft, a driven gear that is connected to the crankshaft, at least one driving gear which drives the associated camshaft and a transmission that interconnects the driven gear and the at least one driving gear. An electric motor is provided which engages with the transmission in an offset manner relative to the crankshaft and the at least one camshaft as well as in an offset manner relative to the associated driven gear and the associated at least one driving gear by means of an intermediate gear. Furthermore, a control device is provided, with the aid of which the electric motor can be triggered in such a way that additional torque and/or an additional torque profile can be introduced into the transmission and/or can be tapped from the transmission based on at least one operational parameter and/or at least one operational situation of the transmission. Also disclosed is a corresponding method.

Abstract: The invention is related to a toothed chain with alternating inner and outer chain links each joined by means of a chain joint, wherein the inner chain links comprise at least one inner plate and at least two joint bushes running perpendicularly through the same, the outer chain links comprise at least two outer plates and at least two joint pins running perpendicularly through the same, and to form a chain joint, one joint pin of the outer chain link each extends through a joint bush of the inner chain link, and at least one inner plate of the inner chain link and/or at least one outer plate of the outer chain link is embodied as a toothed plate with each two teeth defined by an outer flank and an inner flank each.

Abstract: The invention relates to a chain wheel (2, 3), especially for a timing chain drive, with a rotary shaft, a sprocket wheel (7) positioned around the rotary shaft featuring multiple alternating teeth (17) and tooth gaps (16) distributed around its circumference, as well as at least one chain guide (8), the sprocket wheel (7) and the chain guide (8) are rigidly joined, the chain guide (8) incorporates a contoured surrounding support cage (9) causing it to bear on contact faces of link plates (13, 14) and the support cage (9) or raised regions of the support cage (9) extend along a curved circumference that constitutes the perimeter of the chain guide (8), said perimeter of the chain guide (8) having a non-circular profile.

Abstract: A double-meshing type tooth chain, where each of the chain hinges is formed by a sleeve and by a pin extending through said sleeve, and the link plates of the inner chain links are arranged on the sleeves and the link plates of the outer chain links are arranged on the pins, and wherein the outer-chain-link link plate arranged on the pin and the inner-chain-link link plate, which is arranged on the sleeve and located adjacent to said link plate of the outer chain link, are oriented such that their teeth project in the same direction.

Abstract: A tensioner for endless driving elements, such as chains and belts, comprising a tensioning piston provided with locking means, and a locking piston which is adapted to be engaged with and disengaged from the locking means so as to arrest or release the movement of tensioning piston, the locking piston comprising an operating section causing locking piston to move to the arresting position and to the release position, and a locking area used for engagement with the locking means of the tensioning piston and arranged separately from the operating section.

Abstract: An articulated chain comprising chain links which are interconnected by respective chain hinges, a respective hinge pin extending through at least one hinge opening so as to define a chain hinges and a bearing surface of the hinge opening being formed by a sintered material, wherein the hinge pin is produced from an alloy steel and a hinge-pin boundary layer defining the bearing surface is provided with a nitrified surface layer.

Abstract: The present invention relates to a tensioner for endless driving elements, such as chains, belts etc., comprising a tensioning piston provided with locking means, and a locking piston which is implemented such that it is adapted to be engaged with and disengaged from said locking means so as to arrest or release the movement of said tensioning piston, said locking piston comprising an operating section causing said locking piston to move to the arresting position and to the release position, and a locking area used for engagement with said locking means of the tensioning piston and arranged separately from said operating section.