TRANSIENT PRESSURE AND FLOW RATE MEASUREMENT OF THE VACUUM TOILET SYSTEM FOR TRAIN

The pneumatic system which is called a vacuum toilet is used for the toilet for train to make a car in terior comfortable. So far, a pneumatic system design of the vehicle wa s much based on the experience. In this paper, in t he efficiency of this pneumatic system, using the quick flow sensor which has a high response, it measured the pressure and the flow rate of the vacuum toilet for train. Also, it confi rmed that it is possible to attempt vacuum toilet f eature improvement by the change of the pneumatic element and that the si mulation result agreed with the experiment data app roximately.