Fluid recovery systems for laundry systems

Patent metadata

Field	Value
Publication number	US-12486609-B2
Application number	US-202217963952-A
Country	US
Kind code	B2
Filing date	Oct 11, 2022
Priority date	Oct 11, 2022
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

A fluid recovery system for a laundry system (e.g., of a spacecraft) can include a main line having an inlet configured to fluidly communicate with a washing volume within an agitation chamber to receive washing fluid from the agitation chamber, a vacuum source in fluid communication with the main line to provide a partial vacuum to the inlet to cause washing fluid in the washing volume to at least partially evaporate, and a condenser disposed on the main line downstream of inlet. The condenser can be configured to receive evaporated washing fluid and to condense water in the evaporated washing fluid. The system can include a separator downstream of the condenser configured to separate water and laundry effluent gas, wherein the separator includes a water recovery output configured to output water for reuse.

First claim

What is claimed is:

1 . A fluid recovery system for a laundry system, comprising:
a main line having an inlet configured to fluidly communicate with a washing volume within an agitation chamber to receive washing fluid from the agitation chamber; a vacuum source in fluid communication with the main line to provide a partial vacuum to the inlet to cause washing fluid in the washing volume to at least partially evaporate; a condenser disposed on the main line downstream of the inlet, the condenser configured to receive evaporated washing fluid and to condense water in the evaporated washing fluid; a separator downstream of the condenser configured to separate water and laundry effluent gas, wherein the separator includes a water recovery output configured to output water for reuse, wherein the separator includes a gas outlet configured to output the laundry effluent gas to a gas line; a regenerative mol sieve configured to be in fluid communication between the vacuum source and the separator to receive laundry effluent gas from the separator to dry the laundry effluent gas.

2 . The system of claim 1 , further comprising an inlet valve between the inlet and the condenser configured to allow or prevent flow of evaporated washing fluid from the inlet to the condenser.

3 . The system of claim 2 , further comprising a filter between the inlet valve and the inlet, the filter configured to filter and/or defoam the washing fluid upstream of the condenser.

4 . The system of claim 1 , wherein the condenser is configured to fluidly connect to a spacecraft cooling network to cool the condenser.

5 . The system of claim 1 , further comprising a hydrophobic filter configured to prevent liquid water from flowing to the gas line.

6 . The system of claim 1 , wherein the regenerative mol sieve is configured to be thermally treated to release water to be recovered for reuse.

7 . The system of claim 1 , further comprising a mol sieve valve upstream of the mol sieve configured to allow or prevent the laundry effluent gas to flow to the mol sieve.

8 . The system of claim 7 , further comprising a bypass branch line upstream of the mol sieve valve configured to allow the laundry effluent gas to bypass the mol sieve.

9 . The system of claim 8 , further comprising a bypass valve on the bypass branch line configured to allow or prevent laundry effluent gas on the bypass branch line.

10 . The system of claim 9 , wherein the vacuum source includes a vacuum pump downstream of the mol sieve.

11 . The system of claim 10 , wherein the bypass branch line outlets downstream of the vacuum pump.

12 . The system of claim 1 , further comprising one or more outlet lines downstream of the separator.

13 . The system of claim 12 , wherein the one or more outlet lines include a gas recovery outlet line configured to receive laundry effluent gas from the gas line for reuse of the laundry effluent gas.

14 . The system of claim 13 , further comprising a gas recovery valve configured to allow or prevent laundry effluent gas on the gas recovery outlet line.

15 . The system of claim 12 , the one or more outlet lines include a vacuum outlet line configured to be in fluid communication with an external vacuum, and a vacuum valve on the vacuum outlet line configured to allow or prevent laundry effluent gas on the vacuum line.

16 . The system of claim 14 , further comprising a gas filter upstream of the one or more outlet lines configured to filter one or more gaseous components of the laundry effluent gas.

17 . The system of claim 1 , further comprising a heater configured to be in thermal communication with the agitation chamber to provide heat to the agitation chamber during partial vacuum to regulate the temperature of the agitation chamber.

18 . A laundry system, comprising:
an agitation chamber; a motive system connected to the agitation chamber; and
the fluid recovery system of claim 1 operatively connected to the agitation chamber to be in fluid communication with a washing volume of the agitation chamber.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Ramon Mesa Jorge
• Macarie Luca
• Doscher Daniel
• Phong Kellie
• Ekre Bjorner
• Morrison Terrell L
• Louvier Dewey
• Guinn John

Classifications

• D06F39/10

  Filtering arrangements · CPC title

• D06F39/085

  Arrangements or adaptations of pumps · CPC title

• B64G4/00

  Tools specially adapted for use in space · CPC title

• B01D5/006

  with evaporation or distillation · CPC title

• D06F37/30

  Driving arrangements  (control circuits or arrangements D06F34/08) · CPC title