Patent ID: 9677469
Date: 2017-06-13
CPC Classifications: F02B,F16C

Claim:
1. A reciprocating-piston internal combustion engine having a hydraulic adjustment mechanism integrally provided within a connecting rod and comprising: at least one eccentric supported in a connecting rod bearing eyelet or in a piston pin bearing eyelet of the connecting rod that adjusts at least one variable compression ratio in at least one cylinder of the reciprocating-piston internal combustion engine by changing an effective length of the connecting rod with the hydraulic adjustment mechanism, wherein the hydraulic adjustment mechanism includes a first hydraulic cylinder having a first piston in a first fluid chamber and a second hydraulic cylinder with a second piston in a second fluid chamber, the hydraulic cylinders are operated with a fluid, and a setting of at least the one variable compression ratio is effected with a movement of at least the first piston in the first hydraulic cylinder, wherein the first and the second fluid chambers are connected via a first fluid line for a back-and-forth flow of the fluid between the first and the second fluid chambers during movement of the first piston in the first hydraulic cylinder, and the first fluid line is arranged in the connecting rod.