公开(公告)号：US20240392765A1

公开(公告)日：2024-11-28

申请号：US18322262

申请日：2023-05-23

Applicant: Blue Origin, LLC

Inventor： Gary D. Grayson ,  Zachary Daniel Rizzolo ,  Emmanuel John Grillos ,  Michael Friedman

IPC: F04B17/00 ,  F04B15/00

Abstract: Architectures and methods of operation for a pump for pumping two-phase magnetic fluids are described. The pump is capable of such pumping and may operate with no moving parts. Instead, the pump operates by selectively activating and deactivating each of a series of electrical circuits to control the presence or absence of magnetic fields applied to the two-phase magnetic fluid. The two-phase magnetic fluid may include liquid phase and gas phase, which may be in the form of bubbles. Though a presence of bubbles in a liquid may lead to cavitation and failure in some pumps, pumps for pumping two-phase magnetic fluids can avoid such a failure mechanism, in addition to avoiding another failure mechanism of wear and tear on moving parts.

公开(公告)号：US20250060165A1

公开(公告)日：2025-02-20

申请号：US18449071

申请日：2023-08-14

Applicant: Blue Origin, LLC

Inventor： Daniel A. Asturias ,  Michael Friedman ,  Gary D. Grayson

IPC: F28D1/02 ,  F17C7/04 ,  F28F27/02

Abstract: Techniques and systems involve a magnetically enhanced cryogenic boiler that produces, without requiring pumps, high pressure gaseous oxygen from liquid oxygen for use in a spacecraft or other applications. The boiler heats, using a heat exchanger element, a closed container of liquid oxygen to boil the liquid oxygen at constant volume and increasing the pressure in the container. When a desired target pressure is reached, the boiler may release and transfer the high pressure fluid into a gaseous oxygen accumulator for storage. Magnets may be used to draw low pressure liquid oxygen into the boiler and to keep the liquid oxygen on or near one or more heat exchanger elements in the boiler, by exploiting paramagnetism of oxygen. The magnets produce a magnetic field that maintains relatively strong thermal contact between the heat exchanger elements and the liquid oxygen, even in the absence of gravity.