Fuel injection nozzle assembly with stretch element
US4046322A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1976 |
| Grant date | Sep 6, 1977 |
| Priority date | — |
| Expiry date | May 21, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M61/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector nozzle assembly is provided in one embodiment with a nozzle body having a bored opening extending therethrough from an inlet end of the nozzle body to a spray tip end thereof, a valve being mounted in the nozzle body to extend through the bore to form with the nozzle body an annular fuel chamber, one end of the fuel chamber being connectable by a passage means in the inlet end of the nozzle body to a source of pressurized fuel, the valve having its stem end fixed to the inlet end of the nozzle body and having its head positioned to abut against a valve seat in the spray tip end of the nozzle body in a normally closed position, the stem of the valve intermediate its ends being of reduced diameter relative to the head whereby fuel, at a predetermined pressure in the fuel chamber, will effect longitudinal deformation, that is, lengthening or stretching of the valve a limited amount without causing permanent deformation whereby to cause unseating of the valve from the valve seat to permit the discharge of fuel from the fuel chamber out through the spray tip and, as the pressure of fuel in the fuel chamber is reduced, the valve will then contract to again effect seating …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.