Spool valve for controlled dampers
US6616124B2 · kind B2 · utility
16Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2002 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Feb 27, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/50
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The problem of flow induced instability in a control valve for a vehicle damper is solved by a generally tubular shaped valve spool having an open, bridged, flow-through end, rather than side flow openings. The flow-through end of the spool has a narrow flat edge oriented perpendicularly to the axis of the spool, with an inside surface of the spool forming a 55 to 90 degree angle with the flat edge, and meeting the flat edge in a sharp corner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.