Patent ID: 6308678
Filing Date: 2001-10-30
Classification: F02B,F16F,Y10T

Abstract:
In a piston engine, a combination comprising a housing;a crankshaft journalled in said housing for rotation about a predetermined axis;means for damping vibrations of said crankshaft in said housing, said damping means being at least partially confined in said housing and including at least two components movable relative to each other, and resilient means including at least one resilient energy storing element arranged to oppose movements of said components relative to each other and movements of at least one of said components relative to said axis; andat least one friction generating device arranged to oppose at least certain stages of movement of said components relative to each other, said at least one energy storing element being positioned to apply to said at least one friction generating device a force which entails the generation of a frictional damping action at least when said at least two components are caused to move relative to each other.