Automotive adsorption heat pump
US8511111B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 12, 2006 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Mar 3, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A30/274
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An adsorber unit has an outer shell, a plurality of internal tubes extending through the shell for carrying heat transfer fluid, each tube having outwardly projecting fins along its entire length, and a solid adsorbent material in the shell surrounding the tubes such that the fins project into the adsorbent material, the fins being of a material (e.g., metal) of higher thermal conductivity than the adsorbent material. Metal wool loosely packed inside the tubes, or internal radial fins swaged into the tubes, increase internal surface area thereby enhancing convective heat transfer. Metal wool loosely packed between the external fins, or fine wire metal coils lightly squeezed between the external fins, further increase external surface area of the heat exchanger in contact with the adsorbent thereby enhancing contact heat transfer. Performance is enhanced because the external fins and wool or wire coils transport heat more efficiently to all regions of the adsorbent, and permit less non-adsorbent heat exchanger material (e.g., metal) to be used for a given amount of adsorbent. Two or more such units are used in an adsorption heat pump. This design utilizes existing components (e.g., …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.