Control valve
US12264751B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2022 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Dec 6, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K27/045
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control valve (1) for regulating a water flow to or from a device in a HVAC system, having a valve body (2), a shaft (15,25) rotatable about a valve axis X, a first ceramic plate (16,26) and a second ceramic plate (17,27) mounted about the shaft (15,15′,15″), the first ceramic plate (16,26) being stationary, while the second ceramic plate (17,27) is coupled to the shaft (15,15′,15″) to rotate with the shaft (15,15′,15″), the first ceramic plate (16,26) having first- and second through-going openings (31,32,41,42), the second ceramic plate (17,27) having one through-going opening or recess (33,43), first-, second- and third, ports (11,21,12,22,13,23), wherein the second ceramic plate (17,27) is rotatable: to a first range of angular positions in which the first port (11, 21) is in fluid communication with the third port (13, 23), and to a second, different range of angular positions in which the second port (12, 22) is in fluid communication with the third port (13, 23).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.