Vapor phase injector
US4760818A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1986 |
| Grant date | Aug 2, 1988 |
| Priority date | — |
| Expiry date | Dec 16, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M57/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector, system and method comprising means for ejecting fuel directly into a cylinder (14) an engine through a non-conductive, heat storing element. The element including a nozzle (44) portion comprising a preferably ceramic body having a narrow, first passage (158) in communication with a conical second portion (164). The two portions cooperating to cause the fuel to flow turbulently therethrough. The nozzle further includes a heater (174) for elevating the temperature to the nozzle to a predetermined temperture. In this manner, as the fuel contacts the heated nozzle it is atomized. In one embodiment of the invention a solid ceramic body is employed. In another embodiment, the nozzle (178) is formed by a plurality of stacked ceramic disks which include a central opening (182) therethrough and a plurality of heating elements (184), one for each disk. The openings (182) are sized to approximate the continuous conical portion of the solid body nozzle. A control (45) is provided for electrically heating the nozzle (44,178) during certain operating intervals of the engine and a method of operating the engine is described which permits the removal of the electrical energy and p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.