The invention provides a cooling method and device for an engine core module. According to the method, cooling airflow in a fan cabin is reutilized and introduced into the core module so as to cool the core module. In the ground test state, ambient airflow enters the fan cabin for ventilation cooling through an exhaust port of the fan cabin in a free convection mode and is discharged through an air inlet of the fan cabin finally. In other flying states, ambient airflow enters through the air inlet of the fan cabin under the ram action, is divided into a left stream and a right stream for ventilation cooling of the fan cabin, and then is introduced into the core module through an air guiding pipe under the differential pressure of the fan cabin and the core module to conduct ventilation cooling on the core module, and meanwhile, the ambient airflow can conduct directional concentrated cooling on the local high-temperature region in the cabin under the guiding of the air guiding pipe. In this way, ventilation cooling of the core module is achieved, the air entraining content of an external duct is reduced, entraining loss of the external duct is reduced, and reutilization of ventilation cooling airflow of the fan cabin is achieved.
Cooling method and device for engine core module
2015-09-30
Patent
Electronic Resource
English