Vacuum cooling, constant flow partial pressure without refrigeration

Abstract

A method and apparatus for evaporative cooling of materials within a vacuum chamber by maintaining a controlled partial pressure environment. The method involves sealing material inside a chamber, reducing the internal pressure using a vacuum pump, and simultaneously introducing external gas—such as ambient air, nitrogen, or inert gases—into the chamber. A constant partial pressure is maintained by balancing the gas input and vacuum pump operation, allowing for efficient evacuation of vaporized liquid without recondensation. The system can operate with either constant or variable flow rates for both gas input and vacuum pumping, depending on desired cooling conditions, chamber size, and material characteristics. The apparatus includes a sealable vacuum chamber, at least one external gas inlet, and a vacuum pump configured to sustain the target partial pressure.

Dependencies are inferred from the claim text.