METHOD OF COMBUSTION PRODUCTS RECIRCULATION IN PULSATING COMBUSTION CHAMBER AND DEVICE FOR ITS REALISATION Russian patent published in 2013 - IPC F23R7/00 F02K7/02 

FIELD: power engineering.

SUBSTANCE: method for recirculation of combustion products in a pulsating combustion chamber consists in mixing of a fuel and air mixture with combustion products in the volume of the combustion chamber, by installation of a front device at the inlet to the combustion chamber. In the range of operation with the air excess ratio of up to α≈10, air coming via the front device into the combustion chamber from the inlet system is used for ejection of the combustion products by the front device from the peripheral wall area of the combustion chamber into the flow of air at the inlet to the combustion chamber with the purpose of their further mixing. The front device of the pulsating combustion chamber comprises elements of mixture formation intensification and a body deepened into the combustion chamber for the distance of 0.3-1.5 of its hydraulic diameter. Elements of mixture formation intensification are made in the form of hollow semi-open petals installed radially in cuts inside the body and having a closed well-streamlined edge at the side of air inlet from the inlet system and a rear edge open towards the combustion chamber and an upper edge in radial direction via a cut in the front device body. The angle of inclination of the front edge of petal elements of intensification to the axis of the inlet system channel is 90-30°, and ends of petal intensification elements are free and do not cross in the centre, forming a radial beam structure with a free central passage near the axis of the front device.

EFFECT: invention increases efficiency of a working process of a pulsating combustion chamber with simultaneous provision of high parameters of environmental compatibility and manufacturability of a device.

8 cl, 11 dwg