Thermoelectric gas sample cooler
US5465578A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1994 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Jan 19, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4935
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thermoelectric cooler for cooling a sample of hot, continuously flowing gas involves a mechanical heat flow path passing from the flowing gas through a heat-exchanging tube channeling the gas, a heat-conductive block housing the tube, a thermoelectric element having a cold side abutting the block, a heat sink abutting a hot side of the thermoelectric element, and cooling air streams passing through slots in the heat sink. The heat sink is a unibody, jointless metallic body having relatively thin fins defining the slots. A high pressure blower drives turbulent air streams through the slots of the heat sink, and a thermal switch is disposed on the heat sink near the hot side of the thermoelectric element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.