Rotary ball valves with noise attenuators
US11698148B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 2022 |
| Grant date | Jul 11, 2023 |
| Priority date | — |
| Expiry date | Feb 3, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K5/0605
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Rotary ball valves with noise attenuators are disclosed herein. An example rotary ball valve includes a valve body defining a passageway between an inlet and an outlet, a ring-shaped seal in the passageway, a closure member in the passageway, the closure member rotatable in the passageway relative to the seal, and a noise attenuator coupled to the closure member in the passageway. The closure member and the noise attenuator are rotatable between a closed position, a fully open position, and a plurality of intermediate positions between the closed position and the fully open position. The noise attenuator includes walls that are spaced apart from each other. The walls at least partially form a plurality of channels. The channels are aligned with the passageway when the noise attenuator is in the fully open position. The walls include a first wall that is curved such that such that when the noise attenuator is in a first intermediate position, an edge of the first wall is aligned with the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.