公开(公告)号：US11846304B1

公开(公告)日：2023-12-19

申请号：US17823882

申请日：2022-08-31

Applicant: Blue Origin, LLC

Inventor： Christopher Michael Joyce ,  Saleh Tyzoon Tyebjee ,  Ivan Victorovich Klimov ,  Zachary Daniel Rizzolo

IPC: F04D7/00 ,  F04D29/40

CPC classification number: F04D7/00 ,  F04D29/406

Abstract: A high pressure engine propulsion system, such as a rocket engine, having improved engine performance is described herein. A liquid propellant, such as liquid oxygen, is paramagnetic. Cavitation bubbles of the liquid propellant can form in an inducer tunnel of a turbopump when the pressure in the turbopump inlet drops below the vapor pressure of the liquid propellant. The turbopump includes a magnetic field source external to the inducer tunnel to generate or provide a steady magnetic field across or through the inducer tunnel. The steady magnetic field interacts with the paramagnetic propellant, thereby reducing or eliminating cavitation bubble growth, causing cavitation bubbles to collapse, retaining cavitation bubbles within the inducer tunnel, the like, or combinations thereof.

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.