Internal combustion engine`s compression ratio adjustment device, has kinematic link without lock and connected to flange ring, and position adjustment mechanism and link integrated in volume, outside crank pin, bearing and lever

摘要

The device has a cam displacement control unit comprising a kinematic link that does not comprise a lock and connected to a flange ring (21) integrated with a cam (18). A position adjustment mechanism (29) and the link are integrated, outside a crank pin (22), a bearing (27) and a lever (23), in a volume describing a circle whose diameter is the same or less than the diameter of a greater circle. An independent claim is also included for a method for adjusting the compression ratio of an internal combustion engine.