Fichtel & Sachs Ag

Norbert Pieper

Bernhard Schierling

Wolfgang Grosspietsch

Franz Hartig

Manfred Caspar

Harald Raab

Alfred Schraut

Friedrich Kittel

Dieter Kolb

Werner Wiesner

In a torque transmitting torsional vibration damper device for use in a torque transmission path of a motor vehicle between the engine and the gear box a central plate is provided. Two sides plates are provided on both sides of the central plate. The side plates are interconnected for common rotation. Each of the central plate and the side plates is provided with at least two circumferentially extending windows. Respective windows of the central plate and the side plates are aligned in axial direction. Each group of mutually aligned windows receives a pair of torque transmitting compressional springs arranged in series and spaced in circumferential direction. Said discs are provided between the central plate and the side plates. These sides discs are used for circumferential torque transmission between mutually adjacent ends of the compressional springs of each pair. The side discs are supported in radial direction only by engagement with the compressional springs.

Torque transmitting torsional vibration damper device

In a fly-wheel unit of any desired construction type including two separate fly-wheel members, the torsion springs are housed in a liquid receiving chamber which is at least partially filled with a lubricant or with a coolant. In this way inherent noises and excess wear can be damped and heat generation can be uniformly distributed.

Fly-wheel unit for an internal-combustion engine

In a friction clutch for motor vehicles the pressure plate is connected to the clutch housing for common rotation about the common axis by a plurality of leaf springs which are tangential with respect to the common axis of the clutch housing and the pressure plate. The clutch housing has a predetermined direction of rotation which results from the sense of rotation of the combustion engine which is to be connected by the respective frictional clutch to the gear box of the motor vehicle. The leaf springs have--with respect to the predetermined direction of rotation--a leading end portion and a trailing end portion. The leading end portion of all leaf spring elements are fastened to the pressure plate and the trailing end portions of all leaf springs are fastened to the clutch housing.

Friction clutch with tangential leaf springs

Growing community of inventors

Lengerich, Germany

Norbert Pieper