Scale prevention for aircraft water system

Patent metadata

Field	Value
Publication number	US-10071926-B2
Application number	US-201313943105-A
Country	US
Kind code	B2
Filing date	Jul 16, 2013
Priority date	Jul 16, 2012
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

Embodiments of the present invention relate generally to systems and methods for preventing mineral scale deposits in an aircraft water system, and more specifically, within devices and water transport systems, such as coffeemakers and other galley equipment, as well as the water lines themselves.

First claim

What is claimed is:

1. A scale prevention device configured for use on board a passenger transport vehicle, the scale prevention device comprising:
(a) a cartridge comprising:
an inlet configured to cooperate in-line with a water system,
an outlet,
internal inwardly angled side walls that extend along a length of the cartridge and that are separate from external cartridge walls, the internal inwardly angled side walls creating a funnel shape from a wide portion to a narrow portion, and
a media cavity for liquid treatment, the media cavity having a scale prevention treatment media, and

(b) a system to provide uniform fluidization of the scale prevention treatment media by fluid passing through the cartridge such that liquid entering through the inlet contacts the system to provide uniform fluidization and expands the scale prevention treatment media into the media cavity, the inlet directly connected to a domed umbrella feature comprising a dome and edges, wherein a concave face of the dome receives and redirects an incoming fluid flow path traveling in a first direction from the inlet by turning the incoming fluid flow in an opposite direction and forcing the fluid to flow out from under the edges of the domed umbrella feature, which diverts the incoming fluid flow path across substantially all of the scale prevention treatment media.

2. The scale prevention device of claim 1 , wherein the scale prevention device comprises a housing for enclosing the cartridge.

3. The scale prevention device of claim 1 , further comprising a by-pass system.

4. The scale prevention device of claim 1 , wherein the cartridge has a base portion and a top portion, wherein the inlet is located at the base portion of the cartridge and the outlet is located at the top portion of the cartridge.

5. The scale prevention device of claim 1 , wherein the device comprises more than one cartridge to provide a multi-chamber device.

6. The scale prevention device of claim 1 , further comprising a drainage system.

7. The scale prevention device of claim 1 , wherein the device is installed in line with water system lines of the passenger transport vehicle.

8. The scale prevention device of claim 1 , wherein the media cavity is defined by the internal inwardly angled side walls, wherein the cartridge defines an outer wall, wherein a space is formed between the the internal inwardly angled side walls and the outer wall for treated fluid overflow, such that the treated fluid can be routed to the outlet via the space.

9. The scale prevention device of claim 1 , wherein the cartridge has a base portion and a top portion, wherein the inlet is located at the base portion of the cartridge and the outlet is located at the base portion of the cartridge.

10. The scale prevention device of claim 1 , wherein the scale prevention treatment media comprises a polymer-based media configured to reduce precipitation of scale-forming crystals.

11. A scale prevention device configured for use on board a passenger transport vehicle, the scale prevention device comprising:
(a) a cartridge comprising:
an inlet configured to cooperate in-line with a water system,
an outlet,
internal inwardly angled side walls that extend along a length of the cartridge and that are separate from external cartridge walls, the internal inwardly angled side walls creating a funnel shape from a wide portion to a narrow portion, and
a media cavity for liquid treatment, the media cavity having a scale prevention treatment media, and

(b) a system directly connected to the inlet that changes direction of an incoming fluid flow after delivery through the inlet such that the incoming fluid flow is forced in a reversed direction and then outward and distributed more widely across the fluid treatment media bed and expands the media bed into the media cavity.

Assignees

• Mag Aerospace Ind Llc

Inventors

• Boodaghians Razmik B
• Huang Kevin
• Goeschel Christoph
• Ortolan Christina
• Chauhan Vikram

Classifications

• C02F5/00 Primary

  Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (softening using ion-exchange C02F1/42) · CPC title

• C02F2307/14

  Treatment of water in water supply networks, e.g. to prevent bacterial growth · CPC title

• C02F2201/001

  Build in apparatus for autonomous on board water supply and wastewater treatment (e.g. for aircrafts, cruiseships, oil drilling platforms, railway trains, space stations) · CPC title

• C02F2201/006

  Cartridges · CPC title

• B64D11/02

  Toilet fittings · CPC title