Hydronic rooftop cooling systems
US7322205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2004 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Oct 11, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/16
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A roof top cooling unit has an evaporative cooling section that includes at least one evaporative module that pre-cools ventilation air and water; a condenser; a water reservoir and pump that captures and re-circulates water within the evaporative modules; a fan that exhausts air from the building and the evaporative modules and systems that refill and drain the water reservoir. The cooling unit also has a refrigerant section that includes a compressor, an expansion device, evaporator and condenser heat exchangers, and connecting refrigerant piping. Supply air components include a blower, an air filter, a cooling and/or heating coil to condition air for supply to the building, and optional dampers that, in designs that supply less than 100% outdoor air to the building, control the mixture of return and ventilation air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.