Controlled leakage hydraulic damper
US6896236B2 · kind B2 · utility
6Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2003 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Oct 20, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/383
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic damper cylinder 270 is provided for an electromagnetic actuated internal combustion engine cylinder valve 20. The damper includes a piston 68 slidably mounted within the damper cylinder 270. The piston 68 bifurcates the cylinder 270 into a first control volume 74 and a second control volume 76. The first and second control volumes are fluidly connected by an inboard flow path 372. Along the extreme ends of travel, the flow path 372 is blocked by the piston 68 and damping occurs through fluid transfer through an outboard flow path 374.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.