公开(公告)号：US20180142623A1

公开(公告)日：2018-05-24

申请号：US15817354

申请日：2017-11-20

Applicant: AIRBUS OPERATIONS, S.L.

Inventor： Marcos Javier CHIABRANDO ,  Miguel Angel CARRO SANCHEZ ,  Alberto MARTINEZ SANCHO ,  Samuel MARTINEZ VILLACORTA ,  Pio FERNANDEZ-LOPEZ

IPC: F02C7/27 ,  F02C7/12

CPC classification number: F02C7/27 ,  F02C7/12 ,  F02C7/277 ,  F05D2220/323 ,  F05D2220/50 ,  F05D2270/02 ,  F05D2270/301 ,  F05D2270/3013 ,  F05D2270/313

Abstract: A system for controlling aircraft main engines cooling during starting operations. An aircraft incorporates a main engine and a pneumatic starter for starting the same, and a pneumatic source fluidly communicated with the pneumatic starter to supply pressurized air thereto. A control system is provided with a data chart containing predetermined pressure values of the pneumatic source, and the values correspond to an ambient condition to obtain a desired rotating speed for the main engine for that ambient condition. The control system is configured to control the pneumatic source air pressure output based on the data chart and to rotate the main engine within a predefined rotating speed range during cooling procedure. A controlled reduced rotating speed during main engines cooling or cranking operation is thus provided before starting main engines, in order to mitigate bowed rotor phenomenon.

公开(公告)号：US20190390601A1

公开(公告)日：2019-12-26

申请号：US16440301

申请日：2019-06-13

Applicant: Airbus Operations S.L.

Inventor： Carlos CASADO-MONTERO ,  Pio FERNANDEZ-LOPEZ

IPC: F02C7/057 ,  B64D13/02 ,  B64D33/02

Abstract: An air intake system comprising an air duct suitable for providing airflow to the inside of an aircraft, preferably to an auxiliary power unit; an inlet arranged at one end of the air duct; a skin surrounding the inlet; a plurality of slots arranged on the skin; a driving arrangement, a flap door connected to the driving arrangement, and a plurality of fins connected to the driving means. The driving arrangement is configured for moving the flap door between at least two positions, the positions being a closed position wherein the flap door closes the inlet, and an opened position wherein the flap door is driven away from the closed position. The driving arrangement is also configured for moving the plurality of fins such that the plurality of fins protrudes through the slots.

公开(公告)号：US20180346131A1

公开(公告)日：2018-12-06

申请号：US15995439

申请日：2018-06-01

Applicant: AIRBUS OPERATIONS, S.L.

Inventor： Pio FERNANDEZ-LOPEZ ,  Pedro Felipe RAMOS PAUL LASTRA ,  Cristina SAÑUDO OBREGON ,  Maria ZAMARRO MARTIN

IPC: B64D13/08

Abstract: An aircraft comprising a main engine to provide a supply of bleed air, an APU housing within an APU compartment and having an APU bleed valve, an APU bleed air duct connecting main engine with the APU, and a bleed air heating system for the APU compartment comprising an auxiliary pipeline connecting the APU bleed air duct with the APU compartment, a temperature sensor, an auxiliary pipeline valve to control the discharge of bleed air into the APU compartment, and a temperature controller configured to establish a heating operation mode, when the sensed temperature falls below a minimum temperature threshold value, and a standby operation mode, when the sensed temperature surpasses a maximum temperature threshold value. The temperature controller operates the main engine and the valves to establish these operation modes.