Resonator
US11448172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2020 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Jul 2, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M35/1288
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A resonator includes: an inner pipe having first openings penetrated into an outer peripheral surface thereof from an inner peripheral surface thereof and second openings spaced apart from the first opening; a first cover adapted to allow a first resonant space to be formed between the outer peripheral surface of the inner pipe and the inner peripheral surface thereof, the first resonant space communicating with the internal space of the inner pipe through the first openings; and a second cover adapted to allow a second resonant space to be formed between the outer peripheral surface of the inner pipe and the inner peripheral surface thereof, the second resonant space communicating with the internal space of the inner pipe through the second openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.