LIGHT-WEIGHT SITE BETWEEN VANES FOR VANE BACK PLATE POSITION IN TURBOJET ENGINE FAN AND BACK PLATE OF VANES Russian patent published in 2009 - IPC F01D5/30 F04D29/34 

FIELD: motors and pumps.

SUBSTANCE: inter-vane site for back plate in turbojet engine fan contains reflecting part with bottom side equipped with the first and second locking tabs. The first locking tab includes the first opening for the first securing pin. The second locking tab is provided with the second and third openings for the second and third securing pins. Securing pins are intended for rigid locking tabs fastening to back plate between two adjacent vanes. The other invention of the group relates to the back plate of vanes containing the multiple set of the above inter-vane sites positioned between adjacent pairs of vanes.

EFFECT: simple mechanical processing and reduced weight of inter-vane site, decrease of fan vane damages when foreign subjects penetrate liquid end.

9 cl, 3 dwg