Fuel injection nozzle
US4941613A · kind A · utility
5Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1989 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | Apr 10, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M45/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection nozzle of the inwardly opening type has an axially movable valve member engageable under the action of a spring, with a seating to prevent fuel flow through an outlet. The valve member engaged by a spring abutment and is slidable within a sleeve and when fuel under pressure is supplied to the nozzle forces are developed on the valve member and the sleeve which is urged into contact with a part located between the sleeve and the spring abutment. A leakage path is provided to prevent a build up of fuel pressure within an annular zone defined between the part and the valve member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.