US 12,358,639 B2
Aircraft capable of hovering including a by-pass air intake open to the motor bay
Marco Braghiroli, Samarate (IT); and Enrico Canta, Samarate (IT)
Assigned to LEONARDO S.P.A., Rome (IT)
Appl. No. 17/920,310
Filed by LEONARDO S.P.A., Rome (IT)
PCT Filed Apr. 27, 2021, PCT No. PCT/IB2021/053459
§ 371(c)(1), (2) Date Oct. 20, 2022,
PCT Pub. No. WO2021/220154, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 20171458 (EP), filed on Apr. 27, 2020.
Prior Publication US 2023/0159181 A1, May 25, 2023
Int. Cl. B64D 33/10 (2006.01); B64C 27/04 (2006.01)
CPC B64D 33/10 (2013.01) [B64C 27/04 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An aircraft capable of hovering comprising:
a motor bay;
a motor system housed in part inside said motor bay and comprising, in turn, a discharge duct extending at least in part outside said motor bay;
a heat exchanger arranged outside said motor system;
a first air intake fluidically connected with said heat exchanger;
a first duct extending between said first air intake and said discharge duct and along which said heat exchanger is arranged;
a first converging nozzle having a downstream section fluidically connected with said discharge duct and with said first duct, so as to create a first flow of air adapted to cool said heat exchanger; and
a second air intake that is open in said motor bay and distinct from said first air intake;
wherein the aircraft comprises a second converging nozzle having a second downstream section fluidically connected with said discharge duct and with said motor bay, so as to create a second flow of cooling air of said motor bay directed from said second air intake towards said discharge duct and by-passing a combustion chamber and a turbine of the motor system.