# US 10,766,058 B2 · Device for cleaning, especially the pipes of the drinking water circuit of an aircraft > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,766,058 B2 - Document ID: US10766058B2 - Status: Granted - Kind: B2 - Application number: 15/791,022 - Filed: 2017-10-23 - Published: 2018-03-29 - Granted: 2020-09-08 - Earliest claimed: 2013-07-19 - Assignees: Prodose Sarl - Applicants: Prodose Sarl - Inventors: Morou Boukari - Web page: https://patentgrep.com/patent/US10766058B2 ## CPC - B08B 9/0325: {Control mechanisms therefor} - B08B 13/00: Accessories or details of general applicability for machines or apparatus for cleaning - B64F 5/30: Cleaning aircraft - E03B 7/006: {Arrangements or methods for cleaning or refurbishing water conduits} - F24H 8/00: Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation - B08B 2203/007: Heating the liquid - Y02B 30/00: Energy efficient heating, ventilation or air conditioning [HVAC] - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL - B64F: GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR - 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) - F24H: FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL (steam generation F22) - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract The invention relates to a cleaning device, in which said device is supplied with liquid. The device is characterised in that it comprises a mobile chassis supporting a plurality of functional subassemblies necessary for the production of a hot liquid in a condensing gas boiler with sealed combustion chamber. The invention can be used to clean the pipes in an aircraft. ## Claims ### Claim 1 Cleaning device (D), for cleaning a drinking water system said device (D) being supplied with liquid, the device comprising: a mobile chassis (C); a condensing gas boiler comprising a sealed combustion chamber (110), said condensing gas boiler being supported by said mobile chassis; gas bottles (210, 220) for supplying gas to said condensing gas boiler in order to supply energy for the production of heat in said condensing gas boiler, said gas bottles being accommodated by said mobile chassis; a primary circuit (130) containing a liquid, said liquid of said primary circuit being heated by said condensing gas boiler; an exchange subassembly (400); and an output subassembly (500) capable of being connected to the drinking-water system during cleaning of the drinking-water system, in which said exchange subassembly and said output subassembly contain a treatment liquid for cleaning, and in which the treatment liquid is heated in order to clean by heat exchange with said liquid of said primary circuit in said exchange subassembly. ### Claim 2 (depends on 1) Device (D) according to claim 1, characterised in that the cleaning device cleans pipes of the drinking-water system (R) of an aircraft (A), said device (D) being independent of said aircraft (A) and being connectable to said drinking-water system (R) and being supplied with the treatment liquid. ### Claim 3 (depends on 1) Device (D) according to claim 1, characterised by the fact that the cleaning device comprises an intermediate gas reservoir (240); and pressure reducing valves (230) associated with the gas bottles, said intermediate gas reservoir (240) being positioned between the boiler (110) and the pressure reducing valves (230) associated with the gas bottles, in order to receive the gas from the gas bottles and to supply gas to the boiler (110). ### Claim 4 (depends on 1) Device (D) according to claim 1, characterised by the fact that the exchange subassembly (400) comprises a vessel (410) with a portion of the treatment liquid positioned inside, in which the boiler (110) provides the heating of said liquid in said primary circuit (130) and in which said liquid in said primary circuit (130) heats the treatment liquid in said vessel (410) by exchange of heat with said treatment liquid and said vessel (410). ### Claim 5 (depends on 1) Device (D) according to claim 1, characterised by the fact that the exchange subassembly (400) comprises a secondary circuit (420) and an exchanger (430), said treatment liquid being conducted in said secondary circuit (420), in which said condensing gas boiler (110) heats the liquid in said primary circuit (130), which exchanges heat with said secondary circuit (420) in said exchanger (430) in order to thus heat the treatment liquid. ### Claim 6 (depends on 5) Device (D) according to claim 5, characterised by the fact that said treatment liquid in the secondary circuit (420) is preheated by means of the liquid in the primary circuit (130) emerging from the exchanger (430). ### Claim 7 (depends on 1) Device (D) according to claim 1, characterised by the fact that said condensing gas boiler (110) is equipped with a dual-flow discharge flue (111). ### Claim 8 (depends on 2) Device (D) according to claim 2, characterised by the fact that the treatment liquid emerging from the exchange subassembly is a heated treatment liquid and that the device comprises a module (800) for connection to the drinking-water system of the aircraft (A) equipped with a valve (810), selecting the position of which makes it possible: to drain liquid present in the system (R) of the aircraft (A), to stop injection of hot liquid without creating an air vacuum, to drain liquid already present in the device (D). ### Claim 9 (depends on 1) Device (D) according to claim 1, characterised by the fact that the mobile chassis (C) is equipped with damped wheels (711). ### Claim 10 (depends on 2) Device (D) according to claim 2, characterised by the fact that the device is supplied by a domestic water system, and by the fact that the device comprises a module (900) for accelerating the water issuing from the domestic system in order to increase the filling speed of the system (R) of the aircraft (A). ### Claim 11 (depends on 1) Device (D) according to claim 1, characterised by the fact that a high- or low-pressure pump (P2) drives the treatment liquid discharged from the boiler. ### Claim 12 (depends on 11) Device (D) according to claim 11, characterised by the fact that a module for metering treatment product (Pt) injects said product upstream of said high- or low-pressure pump. ### Claim 13 (depends on 11) Device (D) according to claim 11, characterised by the fact that a module for metering treatment product (Pt) injects said product downstream of said high- or low-pressure pump. ### Claim 14 (depends on 1) Device (D) according to claim 1, characterised by the fact that condensation water (Ec) results from the functioning of the boiler (100), and the condensation water is used as an injected treatment product. ### Claim 15 (depends on 2) Device (D) according to claim 2, characterised by the fact that the device comprises an intermediate gas reservoir (240); and pressure reducing valves (230) associated with the gas bottles, said intermediate gas reservoir (240) being positioned between the boiler (110) and the pressure reducing valves (230) associated with the gas bottles, in order to receive gas from the gas bottles and to supply gas to the boiler (110). ### Claim 16 (depends on 2) Device (D) according to claim 2, characterised by the fact that the exchange subassembly (400) comprises a vessel (410) with a portion of the treatment liquid positioned inside, in which the boiler (110) provides the heating of said liquid in said primary circuit (130) and in which said liquid in said primary circuit (130) heats the treatment liquid in said vessel (410) by exchange of heat with said treatment liquid and said vessel (410). ### Claim 17 (depends on 2) Device (D) according to claim 2, characterised by the fact that the exchange subassembly (400) comprises a secondary circuit (420) and an exchanger (430), said treatment liquid being conducted in said secondary circuit (420), in which said condensing gas boiler (110) heats the liquid in said primary circuit (130), which exchanges heat with said secondary circuit (420) in said exchanger (430) in order to thus heat the treatment liquid. ### Claim 18 (depends on 2) Device (D) according to claim 2, characterised by the fact that said condensing gas boiler (110) is equipped with a dual-flow discharge flue (111). ### Claim 19 (depends on 2) Device (D) according to claim 2, characterised by the fact that the device comprises the mobile chassis (C) equipped with damped wheels (711). ### Claim 20 (depends on 1) Device (D) according to claim 1, characterised by the fact that the condensation water (Ec) results from the functioning of the boiler (100), and the condensation water is used as part of an injected treatment product.