Cascade orificial resistive device
US5327941A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1992 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Jun 16, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15D1/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cascade orificial resistive device for throttling fluid flow which minies acoustic noise and internal vibrations is described herein. The device has a hollow body defining a fluid passageway, a plurality of perforated plates mounted within the passageway, a fixed end ring adjacent one end of the perforated plates, and a threadable end ring adjacent an opposite end of the perforated plates to place the plates in compression. Each of the perforated plates is a single piece molded plate having an integral outer ring and an integrally formed center keying mechanism as well as a plurality of orifices. The keying mechanism formed on each plate is designed so that adjacent ones of the plates have their orifices misaligned. In this manner, a pressure drop across each plate is created and the fluid flow through the device is throttled. The device of the present invention has utility in a number of onboard marine vessel systems wherein reduced acoustic noise and internal vibrations are particularly desirable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.