Abstract: An accessory drive for attachment to the end of a shaft. The drive comprises a belt pulley, a carrier with at least a first and a second planet wheel that are strongly coupled and which have differing numbers of teeth, the first planet wheel being in engagement with a first gear circulating along with the shaft, and the second planet wheel with a second gear that is rotatable relative to the shaft, an activatable and deactivatable brake being provided between a continuously stationary part and a part capable of relative rotation, and a freewheel to prevent backward relative rotation of the second gear with respect to the end of the shaft. The first and second gears are arranged radially inside the carrier, such that the freewheel is arranged between the carrier and the part capable of relative rotation and the belt pulley at least partially surrounds the freewheel, the carrier, and the brake radially and externally, and so that the belt pulley and carrier are joined in rotary engagement.

Abstract: A seal is in the form of a continuous annular strip (3) of elastic material. The seal is intended for insertion between a housing (1) and a lid or cover (2). The surfaces of the sealing strip facing the housing and lid are provided with thicker areas in the form of beads (4). The beads are separated and rest independently liquid-tight against both the housing and the lid. One bead rests off the lid and against the housing and the other rests off the housing and against the lid.

Abstract: A switchable hydraulically damping mount, having a supporting mount and a supported mount which are resiliently braced against one another by a support spring made of an elastomeric material. The mount includes at least two working chambers filled with fluid and arranged one behind another in the direction of vibrations introduced during operation. The working chambers are delimited on the sides facing one another by a common partition and are connected in a fluid-carrying manner to one another by at least one damping channel arranged in the partition. The partition has a central recess that is a component of a passthrough opening, such that the passthrough opening can be opened by an actuator, which can be acted on by a pressure medium, of a positioning device. The passthrough opening has a meander-shaped cross section extending in the radial direction.

Abstract: Drive line for an automotive vehicle, in which a separating clutch is provided between the motor and a transmission line for the suppression, if need be, of the transmission of force. A torsional vibration damper is provided on the transmission input shaft of the transmission.

Abstract: A resilient connecting device between an internal combustion engine and an intake pipe thereof comprises an annular cushion of resilient material and two mounting elements that are coaxial with it and fastened to the components being connected. The cushion is axially demarcated at each face by supporting surfaces that extend essentially perpendicular to its axis. The mounting elements overlap and contact the supporting surfaces. A cup spring, made of a material that does not creep, is aligned with the ring.

Abstract: A flexible bearing for supporting a body, in particular, for supporting an internal-combustion engine, includes a journal bearing that may be attached to a supporting foundation and a support that may be attached to the engine. An elastic spring is connected between the journal bearing and the support while a bearing spring made of a non-creeping material is connected between the journal bearing and the support in parallel with the elastic spring. The bearing spring comprises at least one disk spring having an S-shaped spring constant curve. The disk spring and the elastic spring have load carrying capacities such that, after the weight of the body to be supported is applied to the flexible bearing, the spring rate of the disk spring is essentially zero and the rubber spring is essentially free of elastic tensions.

Abstract: A gas-operated spring for the mutual support of two oscillating elements moving relative to one another, for which sensor-controlled (9, 10) first and second devices (1, 2) are provided, which bring about the blowing out of excess compressed gas from the gas-operated spring or the feeding in of additional compressed gas into the gas-operated spring (11) through the activation of valves (3, 4, 5). To prevent a mutual impairment of function, the first device (1) is active only for pressure changes of a frequency above a threshold value and the second device (2) only for changes in the mutual correspondence of the two elements (7, 8), which have a frequency below the threshold value.

Abstract: A rotatable elastic coupling for connecting two relatively rotatable shaft ends comprising a coiled spring having ends that are fixed to a respective shaft end. One of the shaft ends is provided with an extension that axially extends into the interior of the spring. In the region adjacent to the spring ends, an intermediate portion of the spring is radially spaced from the extension. A gap formed by the radial spacing between the intermediate spring portion and the extension is defined between an inner abutment surface of the spring portion and an outer abutment surface on the extension. Relative rotation of the shafts reduces the gap until the abutment surfaces come into contact and a rotational limit is reached.

Abstract: A flywheel has first and second axially-spaced, coaxial flyrings. At least one resilient element connects the flyrings for permitting relative rotational displacement therebetween. A damping device also connects the flyrings operatively in parallel with the resilient element for impeding the relative rotational displacement of the flyrings permitted thereby after some, lost relative rotational displacement up to about .+-.30.degree..

Abstract: A torsional vibration damper, comprising a hub ring and a rotating ring, which encircle one another in a radial space and are positioned in one another by a guide so that they can rotate relative to one another. The collars of the hub ring and rotating ring, between which there is a clearance in the axial direction and which are connected by an essentially tubular resilient body of rubber extending in the axial direction, lock into the gap formed by the space. The resilient body has a radial clearance on the one hand from the hub ring and, on the other, from the rotating ring. The gaps formed by the clearance in the radial and axial directions, are closed off towards the outside and filled with a flowable, incompressible medium.