公开(公告)号：US11719261B2

公开(公告)日：2023-08-08

申请号：US16593066

申请日：2019-10-04

Applicant: Purdue Research Foundation

Inventor： Alina Alexeenko ,  Katherine L Fowee ,  Steven M Pugia ,  Steven Collicott ,  Anthony Cofer

IPC: F04F1/04 ,  F04B19/24 ,  B64G1/40

CPC classification number: F04F1/04 ,  B64G1/402 ,  F04B19/24

Abstract: A vapor-pressure driven micro pump system comprising an enclosure of a supporting structure; a first chamber having a first volatile material as a propellant with a plurality of exit nozzles; a second chamber have a second volatile material inside of a collapsible diaphragm which separates the first and the second chambers within said enclosure, wherein a vacuum at the plurality of exit nozzles causes vaporization of said propellant, which is compensated and displaced by vapor of said second volatile material at a substantially constant pressure by moving of said collapsible diaphragm. The vapor-pressure driven pump system is useful for various situations, especially in a gravity-free environment in space exploration.