Isothermal gas supply and method for minimizing the temperature excursion of a gas mixture released therefrom
US8640468B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 2009 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | May 22, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/32
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Embodiments of a pressurized gas supply are provided. In one embodiment, the pressurized gas supply includes a pressurized gas reservoir and a pressure reducer fluidly coupled to the pressurized gas reservoir. The pressure reducer is configured to reduce the pressure of gas received from the pressurized gas reservoir to a predetermined output pressure (PO). A gas mixture is held within the pressurized gas reservoir at a starting pressure (PS) and at a starting temperature (TS). The gas mixture includes: (i) a warming gas having a positive Joule-Thomson (JT) coefficient at TS and over the pressure range PS-PO, and (ii) a cooling gas having a negative JT coefficient at TS and over the pressure range PS-PO. The cooling of the cooling gas at least partially offsets the warming of the warming gas when the gas mixture is expelled by the isothermal gas supply to achieve a desired gas output temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.