A Comparative Study of the Stiller-Smith and Slider-Crank Mechanisms for Eight-Cylinder Internal Combustion Engine Use

Abstract

Of the possible alternatives to the slider-crank for internal combustion engine use, the Scotch yoke in its various forms and inversions has received considerable attention. Among these, the Stiller-Smith mechanism has shown promise as being a viable option. Kinetostatic models were formulated to determine loading within similar eight-cylinder, four-stroke, compression-ignition engines with emphasis placed on comparing the number and similarity of mechanism components, implications of component and linkage motions, the loading experienced by similar bearing surfaces, and the friction losses of specific components.

A new and efficient mechanism for spark ignition engines

“…Researches have also come to focus on very complicated mechanisms that diminish vibrations and internal friction in these facilities. They have accepted these mechanisms justifiable considering the current circumstances of the energy in the world [31][32][33][34][35][36][37].…”

On the Dual-Rod Slider Rocker Mechanism and Its Applications to Tristate Rigid Active Docking

“…The two solutions in (9) correspond to the elbow up and elbow down configurations of the top rocker/rod assembly. Typically however, in the presence of terminal open boundary conditions, only the elbow up solution (h 1 1;ymax ) will be feasible since the translation of the sliders will be restrained to a maximum stroke threshold defined by y max , thus preventing the elbow down configuration from occurring. As such, y max represents another design parameter that is selected to define the stroke length of the top and bottom sliders as dictated by the mechanism's application.…”

“…In today's industry, the single-rod slider crank or rocker mechanism largely dominates applications where a rotary motion is converted into a translation, or vice versa. The most common example of these applications is in the automotive industry, where the single-rod slider-crank mechanism represents a fundamental component of internal combustion engine technology [1]. In contrast, the industrial applications of the dual-rod slider rocker mechanism, which represent an interesting variation of the singlerod system, remain unexplored.…”