Hydraulic valve with hydraulically assisted opening and fuel injector using same
US6394073B1 · kind B1 · utility
3Cited by
23References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Aug 26, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M63/0061
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulic valve with hydraulically assisted opening comprises a valve body that defines a fluid passage which includes an upstream segment and a downstream segment. Contained within the valve body is a moveable valve member which includes a hydraulic surface. The hydraulic surface is exposed to fluid pressure within the downstream segment of the fluid passage. When the valve member is in a closed position, the upstream segment of the fluid passage is closed to the downstream segment. The upstream segment is fluidly connected to the downstream segment when the valve member is away from the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.