| 摘要 |
FIELD: engines and pumps.SUBSTANCE: invention relates to aircraft engine building, namely to turbine cooling systems for gas turbine engine. Air-air heat exchanger containing several cooled sections arranged in turbomachine flow section and secured on the body by bolt joints, with two flanges, interconnected by network of tubes and provided with holes for bolt connection and collars, having cylindrical mounting surface of large radius making with housing clearance, taken up during assembly. Each flange is installed on the flat site of the housing and is equipped with at least one thrust ledge, made in the area of bolt joint and preventing loss of functional properties of the flange installation section, and forming together with body clearance made with possibility to be taken up sample after taking up clearance between flange and body, so that tightness of flange connection with body platform is ensured.EFFECT: invention enables to achieve better tightness and higher reliability of flanges connection with body platforms.1 cl, 2 dwg |
