Graphical ways to implement the same stroke of pistons of V- and W-shaped engines with trailed connecting rods

This article presents empirical methods of graphical research on the implementation of the same stroke of pistons of V-shaped engines with trailed connecting rods. According to the authors, at a certain stage of research, it is advisable to perform a graphical construction, which could to be more reliable and less costly to use any programs related to determining valid technical and design parameters. Obviously, it is advisable to use two- or three-dimensional modeling based on automatic design systems “Kompas” as a technical tool for achieving the goal. At the first stage, it is enough to design using a two-dimensional modeling system, which allows to asses the ratio of the basic geometric dimensions and possibility of further design. The three-dimensional modeling system allows you to into account the ratio of the parts given their geometric shape and changes in position within the permissible limits of the internal space of CCM and CPG of engine. The peculiarity of graphical research methods involves analysis of the geometric dimensions of the parts and their relative position in a particular engine. In this case, it is advisable to consider the design of CCM of V-shape engines, for example of type V-2, whose peculiarity is to the design of CCM with a trailed connecting rod and to get different stroke of pistons in the main and side cylinders of the engine. In this case, the problem of organizing the identical running of the engine work is connected with the problem of obtaining the same coefficient of excess air, but then the fuel supply to the engine cylinders will be different. The method of shifting the intersection point of the cylinder axes, analyzed in the work, allows the method to be used not only to obtain sufficient space for the pistons at bottom dead center, but also to ensure conditions for the same stroke of the pistons of V- and W-shaped engines.