公开(公告)号：WO2022245983A1

公开(公告)日：2022-11-24

申请号：PCT/US2022/029886

申请日：2022-05-18

Applicant: SIERRA SPACE CORPORATION

Inventor： WYMAN, Dan ,  MOFFATT, Samuel A. ,  PETERSON, Michael ,  WETZEL, John P.

IPC: A01G31/02

Abstract: A plant growth system for a microgravity environment includes a root chamber configured to prevent liquid from escaping from the root chamber in the microgravity environment and to enable recovery of liquid from within the root chamber. In some embodiments, the root chamber may be configured to provide water and/or nutrients to the plants, via ebb/flow and/or spray delivery. In some embodiments, the root chamber includes a main body and a root/shoot interface coupled to the main body. The root/shoot interface can be configured to hold a plant having a root system extending outward from one side of the root/shoot interface into the root chamber and a chute system extending outward from another side of the root/shoot interface outside of the root chamber. The root/shoot interface may be configured to provide water and/or nutrients to the plants.

公开(公告)号：WO2022087578A2

公开(公告)日：2022-04-28

申请号：PCT/US2021/071917

申请日：2021-10-18

Applicant: SIERRA SPACE CORPORATION

Inventor： WYMAN, Daniel Aaron ,  PETERSON, Michael

IPC: B01D45/00 ,  B01D53/00 ,  B01D53/26 ,  B01D2256/10 ,  B01D2257/80 ,  B01D2258/06 ,  B01D2259/4575 ,  B01D53/261 ,  B01D53/265 ,  B01D53/268

Abstract: An apparatus and related methods to separate liquid from a liquid/gas mixture, particularly in a low gravity environment. The apparatus includes a chamber having a capillary channel around a perimeter of the chamber, a liquid/gas inlet to the chamber, a liquid outlet from the chamber, the liquid outlet being positioned at the perimeter of the chamber to remove liquid from the capillary channel, and a gas outlet from the chamber. The gas outlet is positioned in the chamber, away from the capillary channel, to remove gas from the chamber. The chamber is structured to be readily fabricated using traditional machining techniques or additive manufacturing techniques. The chamber may be fabricated from various materials, including, for example, polymers, metals, composites, and ceramics. The chamber may function as a heat exchanger so that the apparatus can remove condensable vapors from the gas in the mixture in addition to what is already liquid.