Valve assembly for an injection valve and injection valve
US8919372B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2010 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Nov 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87563
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve assembly for an injection valve has a valve body with a central longitudinal axis and a cavity with a fluid inlet portion and a fluid outlet portion, a valve needle axially movable in the cavity, the needle preventing a fluid flow in a closing position and releasing the fluid flow via a main fluid line in further positions, a member being fixedly associated to the needle and having a surface facing the outlet portion, a first chamber embodied in the cavity, a second chamber being part of the main line, and a one-way-valve which is hydraulically arranged between the first and second chamber to prevent a fluid flow through a first fluid path in a closing position of the one-way-valve and to release a fluid flow through the first fluid path between the first and second chamber in further positions of the one-way-valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.