Cyclonic prechamber with a centerbody
US5444982A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Jan 12, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a cyclonic precombustion mixing chamber or prechamber having an axially extending annular cyclonic chamber to vaporize liquid fuel therein and a centerbody centrally disposed within. A fuel injection means introduces liquid fuel radially outward into the cyclonic chamber. The centerbody extends axially through an annular exit of the prechamber to define a throat and throat exit therebetween which is optimally designed for preventing backflash and autoignition. In one embodiment the diameter of the throat is sized to substantially match the diameter of the potential core. The diameter of the potential core and the centerbody at the throat exit, D.sub.c, may given by the solution to the following equation; EQU 4(D.sub.c /D.sub.t).sup.4 =(.rho./.DELTA.P)V.sub.w.sup.2 (D.sub.w /D.sub.t).sup.2 [1+(D.sub.c /D.sub.t).sup.2 ] where D.sub.t is the diameter of the outer edge of the throat exit, .rho. is the density of the air (determined from the air pressure and temperature at the inlet of the prechamber), D.sub.w is the inside diameter of the cyclone as defined by a cyclonic chamber inlet, V.sub.w is the tangential velocity, and .DELTA.P is the total pressure…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.