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Combined fresh/waste water tanks

IP.com Disclosure Number: IPCOM000248350D
Publication Date: 2016-Nov-17
Document File: 8 page(s) / 450K

Publishing Venue

The IP.com Prior Art Database

Abstract

Abstract

This method contains a combined tank for fresh and waste water. In this combined tank, fresh water chamber and waste water chamber are separated by means of a moveable piston and impermeable membrane. During the flight, according to the consumption of the fresh water and generation of the waste water, the piston moves.

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Combined fresh/waste water tanks

Fresh and waste water is stored in different tanks and therefore current system needs separate spaces for fresh water tanks and waste water tanks. Additionally during flight, the center of gravitiy moves from the location where fresh water is stored to the location where the waste water tanks are stored.


2. Working principle for combined fresh/waste water tanks

Fig. 1: working principle

This method contains a combined tank for fresh and waste water. In this combined tank, fresh water chamber and waste water chamber is separated by means of a moveable piston and impermeable membrane. During the flight, according to the consumption of the fresh water and generation of the waste water, the piston moves.


1. Current system


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Fig. 2: working principle during flight

 At the beginning of the flight
Combined tank is mainly filled with fresh water. Waste water storage is low. Piston is at the right.

 Mid-flight

As the fresh water is consumed and the waste water is generated, the piston slides to the left.

 At the end of the flight
Fresh water has been consumed. Combined tank is mainly filled with waste water. Piston is at the left side.


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Advantages of the combined system

 weight saving
 space saving
 no center-of-gravity change  simple application
 applicable to all A/C types


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3. Examples for a combined tank

Fig. 3: Example 1

Figure 3 shows a first example of the combined tank.

Before...