Fuel injection valve
US9322375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2014 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Jun 21, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M51/061
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection valve realizing improved circumferential uniformity of swirling fuel is provided. The fuel injection valve includes swirling chambers each having an inner peripheral wall whose curvature is gradually larger from upstream to downstream, paths for swirling each of which, having a fuel flow-in region formed along a valve axis direction, guides fuel to the associated one of the swirling chambers, and fuel injection orifices open into the associated swirling chambers, respectively. In the fuel injection valve, a curved portion is formed on the bottom, in a sectional view along the valve axis direction, of an inlet portion of each of the paths for swirling so as to change the fuel flow in each of the paths for swirling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.