# US 2014/0151309 A1 · Water supply system comprising a venturi pipe > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0151309 A1 - Document ID: US20140151309A1 - Status: Published application - Kind: A1 - Application number: 14/175,096 - Filed: 2014-02-07 - Published: 2014-06-05 - Earliest claimed: 2011-08-12 - Assignees: Airbus Operations GmbH - Applicants: Airbus Operations GmbH - Inventors: Axel Schreiner; Paolo Cavarero; Hannes Müller; Ralf Menshausen; Markus Wirth; Michael Rempe; Carlos Rosero - Web page: https://patentgrep.com/patent/US20140151309A1 ## CPC - E03B 7/078: {Combined units with different devices; Arrangement of different devices with respect to each other} - B01D 21/2405: {Feed mechanisms for settling tanks} - B64D 11/00: Passenger or crew accommodation; Flight-deck installations not otherwise provided for - B64D 11/02: Toilet fittings - C02F 1/32: with ultraviolet light - C02F 1/325: {Irradiation devices or lamp constructions} - G05D 7/01: without auxiliary power - Y10T 137/2599: Venturi - Y10T 137/6906: Aerial or water-supported [e.g., airplane or ship, etc.] - Y10T 137/8013: Sediment chamber - Y10T 137/86035: Combined with fluid receiver - E03B: INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER (drilling wells, obtaining fluids in general from wells E21B; pipe-line systems in general F17D) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) - G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A water supply system includes a first pipe, a water reservoir, and a Venturi pipe having a first Venturi nozzle terminal, a second Venturi nozzle terminal and a Venturi nozzle branch arranged between the first and second Venturi nozzle terminal. The first Venturi nozzle terminal is connected via the first pipe to the water reservoir. The first Venturi nozzle terminal is connectable to a second pipe to fill the water reservoir. The branch of the Venturi pipe is connectable to a third pipe to supply taps. Water flows through the Venturi pipe from the first Venturi nozzle terminal to the second Venturi nozzle terminal when the water reservoir is filled, and water flows through the Venturi pipe from the second Venturi nozzle terminal to the Venturi nozzle branch during the supply procedure, to provide a water supply system which requires less maintenance and is less temperamental. ## Claims ### Claim 1 A water supply system, comprising a first pipe; a water reservoir; and a Venturi pipe having a first Venturi nozzle terminal, a second Venturi nozzle terminal and a branch arranged between the first and second Venturi nozzle terminal, wherein the second Venturi nozzle terminal is connected via the first pipe to the water reservoir, wherein the first Venturi nozzle terminal is connectable to a second pipe to fill the water reservoir, wherein the branch is connectable to a third pipe to supply taps, and wherein water flows through the Venturi pipe from the first Venturi nozzle terminal to the second Venturi nozzle terminal when the water reservoir is filled, and water flows through the Venturi pipe from the second Venturi nozzle terminal to the branch during the supply procedure. ### Claim 2 (depends on 1) The water supply system according to claim 1, wherein the Venturi pipe is configured in such a way that, when filling, a negative pressure develops at the branch when the water flows from the first Venturi nozzle terminal to the second Venturi nozzle terminal and, when supplying, a large flow cross-section is produced when water flows from the second Venturi nozzle terminal to the branch. ### Claim 3 (depends on 1) The water supply system according to claim 1, further comprising a second pipe, wherein the first Venturi nozzle terminal is connected to the second pipe for filling with fresh water. ### Claim 4 (depends on 1) The water supply system according to claim 1, further comprising a third pipe, wherein the branch of the Venturi pipe is connected to the third pipe for water supply, wherein at least one tap is arranged downstream in the third pipe during supply. ### Claim 5 (depends on 4) The water supply system according to claim 4, wherein the branch of the Venturi pipe is connected downstream via the third pipe to the water reservoir during supply so as to form a circulating water circuit, wherein at least one tap is arranged between the branch and the water reservoir. ### Claim 6 (depends on 1) The water supply system according to claim 1, further comprising a water disinfection device having a UV light generator for UV irradiation of water, wherein the water disinfection device is arranged between the second Venturi nozzle terminal and the water reservoir. ### Claim 7 (depends on 6) The water supply system according to claim 6, wherein a higher UV light intensity can be generated in the UV light generator when filling compared to when supplying. ### Claim 8 (depends on 6) The water supply system according to claim 6, wherein the water disinfection device comprises a plurality of UV light generator units, wherein a greater number of UV light generator units can be activated during filling than during supply. ### Claim 9 (depends on 1) The water supply system according to claim 1, further comprising a particle trap, wherein the particle trap is arranged downstream of the branch of the Venturi pipe during supply. ### Claim 10 (depends on 9) The water supply system according to claim 9, wherein the particle trap comprises: an inlet opening; an elongate flow volume; and an outlet opening, wherein the elongate flow volume comprises an extension in the direction of gravity, at least in part, wherein the inlet opening has a smaller effective cross-section compared to the elongate flow volume, and the ratio of the effective cross-sections of the inlet opening and flow volume being dimensioned in such a way that a reduction in the flow rate at the transition from the inlet opening to the flow volume is set in such a way that particles introduced through the inlet opening and having a higher density than water are kept back in the flow volume under gravity. ### Claim 11 An aircraft comprising: a water supply terminal; and a water supply system comprising: a first pipe; a water reservoir; and a Venturi pipe having a first Venturi nozzle terminal, a second Venturi nozzle terminal and a branch arranged between the first and second Venturi nozzle terminal, wherein the second Venturi nozzle terminal is connected via the first pipe to the water reservoir, wherein the first Venturi nozzle terminal is connectable to a second pipe to fill the water reservoir, wherein the branch is connectable to a third pipe to supply taps, wherein water flows through the Venturi pipe from the first Venturi nozzle terminal to the second Venturi nozzle terminal when the water reservoir is filled, and water flows through the Venturi pipe from the second Venturi nozzle terminal to the branch during the supply procedure, and wherein the water supply terminal is connected to the water supply system in such a way that the water supply system can be filled with fresh water during the filling procedure via the water supply terminal. ### Claim 12 A water supply method for a water supply system having a first pipe, a water reservoir, and a Venturi pipe having a first Venturi nozzle terminal, a second Venturi nozzle terminal and a branch arranged between the first and second Venturi nozzle terminal, wherein the second Venturi nozzle terminal is connected via the first pipe to the water reservoir, the method comprising: connecting the first Venturi nozzle terminal to a second pipe to fill the water reservoir, connecting the branch to a third pipe to supply taps, forcing water to flow through the Venturi pipe from the first Venturi nozzle terminal to the second Venturi nozzle terminal when the water reservoir is filled, and forcing water to flow through the Venturi pipe from the second Venturi nozzle terminal to the branch during the supply procedure. ### Claim 13 (depends on 12) The water supply method according to claim 12, further comprising disinfecting the water with UV light between the second Venturi nozzle terminal and the water reservoir. ### Claim 14 (depends on 12) The water supply method according to claim 12, further comprising disinfecting the water with a higher UV light intensity when filling compared to when supplying. ### Claim 15 (depends on 14) The water supply method according to claim 14, further comprising activating a greater number of UV light generator units out of a plurality of UV light generator units of a water disinfection device during filling than during supply.