Open AccessA high efficiency pneumatic drive system using vane-type semi-rotary actuators
Author(s) -
Alfred Rufer
Publication year - 2021
Publication title -
facta universitatis. series electronics and energetics/facta universitatis. series: electronics and energetics
Language(s) - English
Resource type - Journals
eISSN - 2217-5997
pISSN - 0353-3670
DOI - 10.2298/fuee2103415r
Subject(s) - actuator , rotation around a fixed axis , pneumatic actuator , mechanical energy , rotary actuator , displacement (psychology) , control theory (sociology) , compressed air , generator (circuit theory) , realization (probability) , mechanical engineering , rotational speed , angular displacement , engineering , computer science , physics , acoustics , power (physics) , electrical engineering , mathematics , artificial intelligence , psychotherapist , psychology , statistics , control (management) , quantum mechanics
A compressed air driven generator is proposed, where the pneumatic energy is converted into mechanical energy using two vane-type rotational actuators. The use of a second actuator with a higher displacement in order to produce a thermodynamic expansion allows to reach a better energetic efficiency in comparison to the classical operation of such actuators. The alternating movement of the angular actuators is transformed into a unidirectional rotational motion with the help of a mechanical motion rectifier. The paper analyses the enhancement of the energetic performance of the system. An experimental set-up is also described. The performance of the new system is described, and the limits of its realization is commented on the base of experimental recordings of the evolution of the pressure in the chambers.