Fuel injection valve
US11193464B2 · kind B2 · utility
0Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2020 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Jun 21, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2547/001
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection valve includes a needle valve that controls communication between a high pressure chamber and an injection hole, a follower valve provided inside a control chamber controlled by fuel pressure inside an intermediate chamber, and an open-close valve that controls communication between a first passage and a low pressure passage and communication between a second passage and the low pressure passage. The fuel injection valve is configured to control the gradient of the fuel injection rate from the injection hole with an improved configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.