Liquid pulsation dampening device
US4679597A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1985 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Dec 20, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/02772
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A liquid pulsation dampening device comprises a sound transmitting tube structure, including a helical fin that causes incoming pulsations within a liquid to first traverse a spiral path. Vibrations and pulsations transmitted through the liquid are transferred to the tube and are effectively cancelled during their subsequent reverse axial movement through the tube interior. The housing includes a port leading between the housing and tube. One end wall includes a port leading to the tube interior. Passages are provided at the opposite end of the device for free-flow of liquid between the space separating the housing and tube and the tube interior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.