Plastics are more and more frequently applied in the construction of hydraulic components and systems, and recently, in the building of microhydraulic assemblies. The basic unit of the microhydraulic systems is a micropump. It is an object which is quite difficult to design and manufacture, especially when using plastics. The paper is a presentation of challenges that must be met in the process of designing gear pumps, and, at the same time, of the theoretical grounds for the designing of those objects. The challenges include the geometry and the gears, the construction of the pump body, the hydraulics of the pump, and the material—the plastic of which the pump is made. The knowledge on those issues was applied to make and to successfully test a prototype of a micropump.

塑料越来越多地应用于液压部件和系统的构造中，并且最近也应用于微液压组件的构造中。微型液压系统的基本单元是微型泵。这个目的很难设计和制造，尤其是在使用塑料时。本文介绍了齿轮泵设计过程中必须克服的挑战，同时还提出了设计这些对象的理论依据。挑战包括几何形状和齿轮，泵体的结构，泵的液压系统以及材料（制造泵的塑料）。将有关这些问题的知识应用于制造并成功测试了微型泵的原型。