Thermostat three-way control valve equipped with automatic air vent valve for air conditioning fan-coil unit
US6510999B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Dec 10, 2001 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Dec 10, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86726
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A thermostat three-way control valve equipped with an automatic air vent valve for air conditioning fan-coil unit includes a thermostat three-way control valve located between a chilled water supply branch pipe and a chilled water return pipe of a fan-coil unit, and an automatic air vent valve located above the thermostat three-way control valve. The thermostat three-way control valve includes a driving motor which is located at one side of the thermostat three way control valve. The thermostat three-way control valve may be a three-way valve or a two-way valve. The automatic air vent valve can automatically vent air from the fan-coil unit such that no residual air is trapped in the cooling coil of the fan-coil unit thereby to maintain heat exchange efficiency of the fan-coil unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.