Damper device with a plurality of stacked diaphragms coupled together by a coupler having holders forming a space provided between a peripheral weld of the diaphragms and the coupler
US10883462B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 28, 2016 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Feb 17, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/315
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A damper device is provided in a flow passage of a fluid. The damper device includes a plurality of diaphragm dampers that are stacked together. Each of the plurality of diaphragm dampers includes a first flexible portion, a second flexible portion, and a rim including a welded portion. A peripheral edge of the first flexible portion and a peripheral edge of the second flexible portion are welded together in the welded portion. Each of the plurality of diaphragm dampers is configured to seal a gas in an inner region between the first flexible portion and the second flexible portion. A coupler that couples the plurality of diaphragm dampers together includes holders that hold the rims of the plurality of diaphragm dampers. A gap is provided between the holder of the coupler and the welded portion of each of the plurality of diaphragm dampers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.