Tumbling Multi-Chamber (TMC) gear pump is a generally unknown type of hydraulic device, which features a unique three-dimensional shape of the gears. The main benefits of such design over the conventional gear pumps are self-adapting tightness of the pump parts, the possibility to mold the parts from a polymer material and high volumetric efficiency, considering the simplicity of the design. The specific working principle of TMC pumps requires a slightly different approach to the numeric modeling and analysis process compared to the conventional gear pump types (e.g. external gear and gerotor pumps). One of the main contributions of the work is the development of an analysis procedure, which allows studying flow and pressure conditions in the TMC pump. This includes the influence of the positioning of the pump parts on spatial and temporal variations in sealing regions and the influence of pressure field propagation in relation to the valve plate position.

翻滚多室（TMC）齿轮泵是一种通常不为人知的液压装置，具有独特的齿轮三维形状。相对于传统齿轮泵，这种设计的主要好处是，泵的零件具有自适应的密封性，考虑到设计的简单性，可以用聚合物材料模制零件，并具有很高的容积效率。与传统的齿轮泵类型（例如外齿轮泵和齿轮泵）相比，TMC泵的特定工作原理要求​​对数值建模和分析过程稍有不同。这项工作的主要贡献之一是开发了一种分析程序，该程序可以研究TMC泵中的流量和压力条件。