Magnet injector for fuel reservoir injection systems
US6422209B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 2001 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Aug 20, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M63/0073
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a magnet injector for fuel reservoir injection systems, having a fuel inlet and a fuel outlet, a control chamber, which communicates with the inlet, a nozzle which communicates with the inlet and a nozzle needle, which has a tip for closing the nozzle opening and has a shaft end that borders on the control chamber; and a magnet valve which has a first electromagnet, an armature, a valve chamber that communicates with the outlet via a first passage and with the control chamber via a second passage, and a throttle body which is located in the valve chamber and is connected to the armature, wherein the throttle body, in the state of repose of the injector, is kept in a first terminal position, in which it blocks one of the two passages, and is moved toward a second terminal position, in which it opens this passage, by triggering of the first magnet. To make shorter switching times possible, the magnet valve has a second electromagnet, which upon triggering acts on the armature oppositely from the first electromagnet. The throttle body is embodied such that in its second terminal position, it blocks the other of the two passages and along the way between its tw…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.