Nozzle assembly for a fuel injector, and fuel injector
US10018169B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 13, 2015 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Apr 13, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/28
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A nozzle assembly for a fuel injector includes a nozzle needle (1), which is accommodated in a high-pressure bore (2) of a nozzle body (3) in such a way that the nozzle needle can be moved in a reciprocating manner in order to open and close at least one injection opening (4) and to which a spring force of a spring (5) is applied at least indirectly in a closing direction. The nozzle needle (1) is at least partially surrounded by a throttle bore body (7) in order to form at least one closing throttle (6). The throttle bore body (7) has a multi-part design and comprises at least two sleeves (7.1, 7.2), which are at least partially guided in each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.