Abstract: The invention relates to a clutch, particularly a multi-disk clutch, of an, in particular, manual transmission for, in particular, vehicles having a spring force of a spring device, said spring force influencing the adjusting force, which is produced in a power source and which serves to actuate the clutch. This clutch should be able to operated while maintaining predetermined closing and/opening times that are as precise as possible. In addition, the closing and/or opening times should be independent of possible changes in properties of the spring device. To this end, a clutch of the aforementioned type is characterized in that the spring device (3) and/or at least one of its thrust bearings is provided with a sensor (4), which detects solid body changes and which serves to determine the spring force exerted by the spring device (3), and a device for transmitting the determined measured values for controlling and/or regulating the adjusting power source.

Abstract: The invention relates to a radially slotted ring having an elastically variable diameter, in particular a retaining ring, is to be transportable as a bulk material without complications and it should be suitable for final grinding to an axial thickness dimension with a high manufacturing precision. This ring (1) comprises a radial slot (2) that is filled at least partially with a filler material (3) which is easily removed prior to use of this ring (1) for its proper function, the filler material serving as a shipping and/or machining aid. The filler material (3) consists in particular of the material of the ring and is already manufactured in the primary shaping of the ring (1) together with this ring so that it can be separated easily from the ring.

Abstract: A knock sensor for an internal combustion engine with an electronically evaluated vibration sensor should have a simple design and allow a rational installation. To this end, the vibration sensor is characterized in that the knock sensor comprises at least one spring washer (4, 4?) that is or can be tensioned relative to the internal combustion engine, and a piezoresistive amorphous carbon layer (5) is applied onto at least one face of the at least one spring washer (4; 4?).

Abstract: The invention relates to a clutch, particularly a multi-disk clutch, of an, in particular, manual transmission for, in particular, vehicles having a spring force of a spring device, said spring force influencing the adjusting force, which is produced in a power source and which serves to actuate the clutch. This clutch should be able to operated while maintaining predetermined closing and/opening times that are as precise as possible. In addition, the closing and/or opening times should be independent of possible changes in properties of the spring device. To this end, a clutch of the aforementioned type is characterized in that the spring device (3) and/or at least one of its thrust bearings is provided with a sensor (4), which detects solid body changes and which serves to determine the spring force exerted by the spring device (3), and a device for transmitting the determined measured values for controlling and/or regulating the adjusting power source.

Abstract: A knock sensor for an internal combustion engine with an electronically evaluated vibration sensor should have a simple design and allow a rational installation. To this end, the vibration sensor is characterized in that the knock sensor comprises at least one spring washer (4, 4?) that is or can be tensioned relative to the internal combustion engine, and a piezoresistive amorphous carbon layer (5) is applied onto at least one face of the at least one spring washer (4; 4?).

Abstract: A spring system for connecting two flanges (13, 14), for use especially in a motor vehicle exhaust system. The spring system is configured as an elastic, flexible clamp with functionally first (1, 2) and second (4, 5) U-shaped clamping jaws positioned opposite each other. This provides a spring system which is easy to assemble and economical to produce. To this end the spring system has the U-shaped arms (6, 7) of the clamping jaws (1, 2; 4, 5) having only locally very restricted areas (8, 9, 10) for direct application to the pieces (11, 13; 12, 14) to be joined by means of the clamp. Four application areas (8) exercising both clamping functions are present in at least one of the clamping planes (100 or 200), of which two areas are arranged in pairs and situate diametrically opposite each other.

Abstract: The invention relates to an articulated pipe connection for two conducting arts of a motor vehicle which comprises spherical connecting pieces for joining the two conducting parts and has at least on one connecting piece a flange-shaped connecting piece abuttable axially against the latter, said connecting piece being connected with spring tension by spring means with the other connecting piece, with the connecting pieces being held together by the spring means with a pretensioning force.