International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Vortex Gas Pistons technology has been developed and manufactured to be specifically applied in most air rifles and it uses regular air instead of any other type of gas. Manufacturer ****** offers 6 different types of Vortex Gas Pistons covering most of the Break Barrel and Underlever lines. Despite the demand for high quality materials and optimal construction, operational impacts invariably take their toll on the weapon and defects often occur due to a variety of reasons – either quality or manufacturing defects in the material and those resulting from friction between individual parts, pressure and errors in the maintenance and operation of the weapon.
Each one of the listed impacts, as well as their combination, may be the cause of defects, which in this study are searched for on the items
submitted for evaluation details of original and destroyed air gun piston and barrel, showing defect.

The subject of research in this paper is the kinematic analysis of the slider-crank mechanism of an internal combustion (IC) engine. The piston, connecting rod and crankshaft are the most important moving parts of an IC engine. The performance of IC engines largely depends on the design of the mentioned parts. Special attention should be paid to the kinematic analysis of the slider-crank mechanism, when constructing IC engines. Properly performed kinematic analysis is a prerequisite for the design of an efficient IC engine. Today, there are many software packages that make it much easier for engineers to perform fast and efficient kinematic analysis of machine assemblies. This paper presents the use of kinematic analysis software on the example of a slider-crank mechanism, an IC engine.