Toilet system with reduced or eliminated flushing requirement, especially for transportation vehicles

a technology for toilets and toilets, which is applied in the direction of water closets, sewer systems, flushing devices, etc., can solve the problems of not having any waste-contacting surfaces, systems are not well suited to commercial passenger transportation vehicles, and only a limited capacity for flushing liquid

Inactive Publication Date: 2002-08-22
ERDMANN WOLFGANG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Transportation vehicles, particularly aircraft, have only a limited capacity for carrying flushing liquid for rinsing or flushing toilets and waste water.
In other words, such systems do not have any waste-contacting surfaces in the toilet bowl or waste lines, because the waste is fully encapsulated in a wrapper.
Such systems are not well suited to applications in commercial passenger transport vehicles, because they are not sufficiently robust and reliable.
Such items will inevitab

Method used

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  • Toilet system with reduced or eliminated flushing requirement, especially for transportation vehicles
  • Toilet system with reduced or eliminated flushing requirement, especially for transportation vehicles
  • Toilet system with reduced or eliminated flushing requirement, especially for transportation vehicles

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Embodiment Construction

[0024] FIG. 1 is a schematic representation of a toilet system 1 such as can be used in an aircraft A. The toilet system 1 comprises essentially at least one toilet bowl 2 that is connected via a waste water valve 3 to a waste collection pipe 4. It is possible to connect a plurality of toilets located at various locations to the waste collection pipe 4. The waste collection pipe 4 includes pipes, conduits, hoses, or lines that are used to convey waste material. The waste collection pipe 4 leads to a waste collection tank 5 in which the waste material and waste water are collected. A pressure differential between the toilet bowl 2, which contains waste, and the waste collection tank 5 facilitates or effectuates the waste transport operation. The toilet system 1 is constructed therefor as a vacuum toilet system. A vacuum generator 6 generates the necessary negative pressure. When used in an aircraft, the vacuum toilet system 1 can also or alternatively take advantage of the predominat...

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Abstract

A toilet system, especially for passenger transport vehicles, includes a toilet bowl connected via a suction valve and a waste collection pipe to a waste collection tank. Waste-contacting surfaces of the toilet system that come into contact with urine and fecal waste are coated with an adhesion-inhibiting or adhesion-reducing nanocoating. Thereby, the adhesion of waste to the toilet bowl and other components is significantly reduced, and the total flushing water demand can be substantially reduced or, preferably completely eliminated. An airflow flowing into the toilet bowl, induced by the vacuum suction through the suction valve, is sufficient to "flush" the waste material from the nanocoated waste-contacting surfaces. The toilet system provides a substantial reduction in the total system weight and in the required quantity of flushing water that must be carried in the vehicle, and thus makes the toilet system particularly applicable for passenger transport vehicles such as aircraft.

Description

[0001] This application is a Continuation-in-Part under 35 U.S.C. .sctn.120 of our prior co-pending U.S. patent application Ser. No. 09 / 603,854, filed on Jun. 26, 2000.PRIORITY CLAIM[0002] This application claims the priority under 35 U.S.C. .sctn.119 of German Patent Application 199 28 894.1, filed on Jun. 24, 1999.[0003] The invention relates to a toilet system, especially for transportation vehicles, including at least one toilet bowl connected to a waste collection tank by a suction valve.BACKGROUND INFORMATION[0004] Transportation vehicles, particularly aircraft, have only a limited capacity for carrying flushing liquid for rinsing or flushing toilets and waste water. For this reason, transportation vehicles often use toilet systems in which the toilet bowl is connected to a waste collection tank by a suction valve, and particularly toilet systems that are constructed as vacuum systems. Conventional toilet systems use a flushing liquid to flush the toilet bowl, whereby the flus...

Claims

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Application Information

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IPC IPC(8): B64D11/02E03D11/02E03F1/00
CPCB64D11/02E03D11/02E03F1/006Y02T50/46Y02T50/40
Inventor ERDMANN, WOLFGANGGIENKE, TORSTENHEINRICH, HANS-JUERGEN
Owner ERDMANN WOLFGANG
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