Wartsila Finland Oy

Abb Turbo Systems Ag

Balz Flury

Josef Bättig

Christoph Mathey

Heikki Mikonaho

Alfons Tröndle

Alfred Müller

Peter Schellenberg

Daniel Oeschger

A vibration suppressor and a vibration damper are configured in a system including an internal combustion engine and an exhaust-gas turbo charger. The vibration suppressor and vibration damper are secured to an exposed place on the system which is subjected to strong vibrations. As the vibrations are the strongest in said area, the vibration reducer can be used to a maximum. The system including the internal combustion engine and the exhaust-gas charger is enhanced in such a manner that the internal combustion engine can be operated in all of the rotational speed ranges without reducing the service life of individual components or the entire system.

Vibration suppressor

The shaft is connected to the shaft attachment by a thread. A bore with an internal thread is incorporated in the shaft attachment and the shaft has a corresponding stem which can be introduced into the threaded bore and has an external thread. An axial stop is arranged on the shaft and on the shaft attachment. The internal and external threads have torque-transmitting flanks which are flat toward the axis and which can be connected to one another frictionally by radial pressure by mutual rotation of shaft and shaft attachment with interaction between the axial stops. Owing to the small angle between the load-bearing flanks and the axis, the radial pressure decisive for the torque transmission is correspondingly greater than in conventional threaded connections. As a result, the axial prestressing force between the two parts to be connected can be correspondingly reduced.

Shaft/hub connection

Growing community of inventors

Würenlos, Switzerland

Balz Flury