Vol: 35 , Nr: , Art.: 6
Tytuł / Title:
Energy analysis of an ideal suction-pressure unit
Analiza energetyczna idealnego układu ssąco-tłoczącego
Autorzy / Authors:
Institute of Mechanical Technology, Poznan University of Technology
Słowa kluczowe / key words:
hydraulics, pump, hydrostatic gear
hydraulika, pompa tłokowa
Streszczenie / Summary:

The article presents an energy analysis of an ideal suction-pressure unit of a radial piston pump of high efficiency. The pump is an important element of a multiplying hydrostatic transmission, which may be used in small or micro hydros. Because the suction-pressing unit plays a crucial role as far as pump parameters are concerned, the design and working principles have been described in the article. Not only has the ideal model been described, but also all the processes it triggers. The mass balance, volume balance and energy balance of the unit have been studied. Also, mathematical models of energy conversion of working liquid have been described. Indicator diagrams of each chamber of the suction-pressure unit have been presented. The diagrams served to determine technical work of processes present there. This article is an introduction to a detailed analysis of a real suction-pressing set, which includes all factors influencing its work as well as generated losses.