Research Information System
Other, pp.106-113, 2007
Investigations, focused on mechanical and thermal design parameters in the internal combustion engines, have improved mechanical strength, thermal efficiency, wear and surface quality of the elements during the 20th century. In addition, fuel consumption has been reduced and engine lifetime has been increased. But, any definite modification at the slider-crank mechanism, firstly which has been used at the beginning of the 20th century, has not been performed up to now. In this study, kinematic analysis and transmission quality of a new slider-crank mechanism are investigated. The new mechanism has a gear system and an additional eccentric link between connecting rod and crank pin as distinct from an original slider-crank mechanism. These modifications were performed in order to ensure the effective usage of the gas forces during the expansion stroke for obtaining the effective output torque. With the aim of comparing, kinematic analysis and transmission angle results of the new mechanism have been evaluated with respect to that of an original slider-crank mechanism with the same stroke and same rotation speed of the crankshaft.