Fuel injection device
US10302057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2016 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Jun 21, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M51/0675
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A movable core is movable relative to a needle main body of a needle. A stationary core is placed on an opposite side of the movable core, which is opposite from a valve seat. A spring is operable to urge the needle and the movable core toward the valve seat. A spring seat is shaped into a ring form and is placed on a radially outer side of the needle main body at the valve seat side of the movable core. The spring is placed between the movable core and the spring seat and is operable to urge the movable core toward the stationary core. A guide is placed on the valve seat side of the movable core in an inside of a housing. An outer wall of the spring seat is slidable relative to an inner wall of the guide to guide reciprocation of the needle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.