Electromagnetic fuel injector
US10288022B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2014 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jan 27, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/9069
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an electromagnetic fuel injection which is structured such that both end surfaces of an inner circumferential iron core portion and an outer circumferential iron core portion face a movable iron core, and a non-magnetic portion made of a metal material is provided between both end surfaces, an object of the present invention is to realize a structure of the electromagnetic fuel injector in which a surface of a target object is unlikely to be affected by a heat treatment with the surface facing the movable iron core. In an electromagnetic fuel injector 1 of the present invention which is structured such that both end surfaces of an inner circumferential iron core portion 401a and an outer circumferential iron core portion 401b face a movable iron core 402, and a non-magnetic portion 401d made of a metal material is provided between both end surfaces, in order to achieve this object, heat in a target member to be heat treated is generated by applying energy to a target member's surface which is different from a target member's surface that faces the movable iron core 402. More preferably, energy is applied to a surface different from a surface on a side that faces the movable iron…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.