Modular fuel injector with a damper member and method of reducing noise
US7128281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2004 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Feb 8, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/8084
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector includes a body, filter, and damper member. The body extends along a longitudinal axis between an inlet end and an outlet end and has a wall defining a flow passage extending therebetween. The filter is disposed in the flow passage proximate the inlet end. The damper member is secured to the flow passage between the inlet end and the filter. The damper member has outer and inner surfaces surrounding the longitudinal axis, the outer surface being contiguous to the wall of the flow passage to define at least one circumferential band about the longitudinal axis in the flow passage. The inner surface defines an aperture that extends through the damper member to permit fluid communication between the inlet end and the filter. A damper member is also shown and described. A method of reducing sound in the valve group subassembly is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.