Valve body and fluid injector with valve body
US7575183B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2004 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Dec 8, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M61/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fluid injector has a housing, an actuator unit and a valve body (2). The valve body (2) has a needle (22), which closes or opens a nozzle (213) depending on its position and comprises a guided zone (221). It further has a first part (21), which is arranged in a fixed position relative to the nozzle (213) and has a guided zone (215). It further has a second part (24), which has a first guide zone (242), that guides the guided zone (221) of the needle (22), and which has a second guide zone (243), that guides the guided zone (215) of the first part (21), with the second guide zone (242) having a greater diameter than the first guide zone (242).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.