Variable connecting rod, internal combustion engine with a variable compression and process for the preparation of the variable-length connecting rod

摘要

A variable connecting rod 6 has an eccentric element with a sleeve 321, with which a piston bolt receiving opening 321c is provided, a first plate 322, at an end portion of the sleeve is arranged and with first connection pin receiving openings 322a is provided, a second plate 323, which is present on the other end section of the sleeve is arranged and with a second connection pin receiving openings 323a is provided, and connecting pins 324, the the first plate and the second plate in a state where, in the first connection pin receiving openings and the second connection pin receiving openings are received; a connecting rod rods body 31; a hydraulic cylinder 33a, 33b; a hydraulic piston, 33b, 34b; and a connecting element 45, 46. the axis of the piston bolt receiving opening is eccentrically with respect to a pivot axis of the sleeve, and the sleeve and the first plate are a part formed as a unit.