Vacuum pump silencer
US11512714B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2019 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Sep 29, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/96
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A silencer assembly especially designed for attachment to the exhaust port of vacuum pumps and which adapts to the pumps pressure changes to regulate the outlet flow. The silencer features a perforated housing having an inner channel which connects to the discharge port of the vacuum pump and a valve assembly having a spring-loaded ball for dynamically regulating the fluid flow through the perforated housing. Once the pressure of the flow from the pump is high enough to compress a spring by pushing on a rubber ball which acts as a valve, a channel opens inside the silencer and the air can be vented through the radially distributed perforations on the housing. As the air escapes, the noise caused by the flow is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.