COMBUSTION CHAMBER WITH PRE-MIXING AND VORTICITY

• Main Authors: SILIVESTRU VANENTIN, SANDU CORNEL, CARLANESCU CRISTIAN, TECU VLAD, CARLANESCU RAZVAN, PRISECARU MALINA MIHAELA, PRISECARU TUDOR
• Format: Patent
• Language: English; Romanian
• Published: 30.08.2019
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The invention relates to a combustion chamber with pre-mixing and vorticity, used in the field of gas turboengines with gas fuel, especially where the gas fuels are mixtures of gases with high combustion rates, such as hydrogen. According to the invention, the chamber consists of an injection system (A) which supplies gas fuel to a vortex generator (B) comprising, outside, some helical blades (1) which are placed on the axial direction of flowing, having a minimum thickness (a), constant along the height, and which forms some flared helical flowing channels, having a small width (b) at the base and a large width (c) at the top, which monotonously narrow downstream, to form some convergent nozzles (d) with plane parallel cross-section having a width (e) forming, at the output, jets under some angles ( α ) in relation to the axial direction and forming some vorticity jets (f), the gas fuel supply being achieved by their entering through an interior channel (g) of the vortex generator (B) and further into the air flow through some orifices (h), another part of the fuel gases being distributed through some channels (i) cut through all the blades (1), communicating with other orifices (j) inclined to the direction and according to the said angle ( α ), intersecting some air jets (l), for the intake of another part of the air into the primary zone, some elongated orifices (m) being cut, aligned according to an axis inclined to the same direction and according to the said angle ( α ).