INJECTOR NOZZLE CONFIGURATION FOR SWIRL ANTI-ICING SYSTEM

摘要

An anti-icing system for annular turbofan engine housings what include a substantially closed annular housing at a leading edge of the turbofan engine housing, the annular housing containing a quantity of air and a conduit extending from a source of high pressure hot gas to the annular housing. The system also includes an injector connected to the end of the conduit and extending into the annular housing; one or more nozzles extending outwardly from the injector in a direction that the quantity of air circulates in the annular housing while the turbofan engine is operating. The nozzles have an entrance in fluid contact with the injector and an exit, wherein a cross-sectional area of the entrance is less than a cross-sectional area of the exit such that gas leaving the nozzles is travelling slower than gas entering the nozzles.

主权项

1. An anti-icing system for annular turbofan engine housings comprising:
a substantially closed annular housing at a leading edge of the turbofan engine housing, the annular housing containing a quantity of air; a conduit extending from a source of high pressure hot gas to the annular housing; an injector connected to the end of the conduit and extending into the annular housing; and one or more nozzles extending outwardly from the injector in a direction that the quantity of air circulates in the annular housing while the turbofan engine is operating, the nozzles having an entrance in fluid contact with the injector and an exit, wherein a cross-sectional area of the entrance is less than a cross-sectional area of the exit such that gas leaving the nozzles is travelling slower than gas entering the nozzles.