Bellows pressure pulsation damper
US5845621A · kind A · utility
61Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1997 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Jun 19, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/315
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fluid communication device such as a fuel rail having a bellows damper positioned either in the end of the fuel rail or orthogonal to the axis of the fuel rail for dampening pulsed pressure waves from the flowing of the fuel. The bellows is a hollow tubular member having an enclosed end with a plurality of circular hollow ribs forming the outer surface of the bellows. The damper may also be located in a pocket or may be free floating in the fuel rail. An additional spring member is added to the damper for changing the spring rate characteristic of the bellows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.